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water pollution; limnology; national parks; Salvelinus fontinalis; acidification; environmental impact; water quality; acid deposition; Cyprinidae; streams; freshwater fish; pH; air pollution; Virginia
... ATG12, a core autophagy protein, forms a conjugate with ATG5 to promote the formation of autophagosome membrane, and plays an important role in antiviral immunity. However, little is known about the function of ATG12 in fish. Here, we cloned the open reading frame (ORF) of large yellow croaker (Larimichthys crocea) ATG12 (LcATG12), which is 354 nucleotides long and encodes a protein of 117 amino a ...
quantitative polymerase chain reaction; polypeptides; messenger RNA; translation (genetics); liver; copper; Cyprinidae; heavy metals; DNA; exposure duration; open reading frames; cadmium; Western blotting; amino acid sequences; amino acids; gene expression; fish; heat-shock protein 70; introns
Abstract:
... A full sequence of TaHSP70 (heat shock protein 70 of Tanichthys albonubes) was amplified which was 2398bp, including an open reading frame (ORF) of 1392bp encoding a polypeptide of 643 amino acids with all three HSP70 family signatures and cytosolic motif of EEVD. Genomic DNA structure analysis revealed that the TaHSP70 gene contained one intron in 5′UTR. BLAST analysis revealed that the TaHSP70 g ...
... Since toxicity is based on the effect that a toxicant produces at a target site within an organism, establishing the relationship between the concentration of substance at the target site and the subsequent toxic effect can provide a tool for predicting toxicity. The behavior of a single toxicant could not be fully understood without the knowledge of the fact the physical and biochemical propertie ...
... This study evaluates the toxic effects of the organophosphate pesticide (OP) dichlorvos to the endangered Iberian toothcarp (Aphanius iberus). To this end, the lethal toxicity of dichlorvos based on 96h-LC50 bioassays was determined in saline water (50g/L), and in vivo effects of dichlorvos on cholinesterase (ChE) activity were investigated in adult female and male specimens. The 96h-LC50 value de ...
... Studying species flocks (e.g. Darwin's finches, Caribbean anoline lizards, East African cichlid fishes) has proven to be highly successful in understanding the forces driving speciation. The only known, intact species flock of cyprinid fishes, the 15 Labeobarbus species in Lake Tana (Ethiopia), includes eight piscivorous species. Piscivory is a rare specialisation among the highly successful (>200 ...
Cyprinidae; Oreochromis aureus; age structure; air temperature; extinction; females; fish; habitat destruction; habitats; invasive species; life history; longevity; males; spawning; Jordan
Abstract:
... Information on the life‐history traits of threatened fishes can inform their conservation as they can indicate resilience to environmental change and vulnerability to extirpation and extinction. Garra ghorensis, a small (< 140 mm total length) riverine cyprinid fish, endemic to the southern Dead Sea area, is critically endangered through habitat loss and invasive species. There are, however, no da ...
Cyprinidae; age structure; females; fish; males; otoliths; rivers; sexual maturity; sport fishing; South Africa
Abstract:
... Age structure, growth and size at sexual maturity of smallmouth yellowfish, Labeobarbus aeneus (Burchell), were assessed in 2008–2009. Despite its angling and food importance, little has been published on many aspects of its ecology and biology, specifically its age structure in the Vaal River system. Of 193 L. aeneus collected by gillnetting, 96 were assessed for sexual maturity, and ages were es ...
Allocreadium; Cyprinidae; genes; genetic analysis; morphometry; phylogeny; ribosomal DNA; ribosomal RNA; testes; watersheds; East Asia; Russia
Abstract:
... Three species of the genus Allocreadium were collected from cyprinid fish in the territory of the Russian Far East: Allocreadium khankaiensis sp.nov; Allocreadium hemibarbi Roitman, 1963, and Allocreadium sp. 1. It is established that, according to morphometric values, the species A. khankaiensis sp.nov. has high morphological similarity with Allocreadium elongatum Achmerov, 1960; Allocreadium ery ...
... Tropical regions are expected to be some of the most affected by rising sea surface temperatures (SSTs) because seasonal temperature variations are minimal. As temperatures rise, less oxygen dissolves in water, but metabolic requirements of fish and thus, the demand for effective oxygen uptake, increase. Gill remodelling is an acclimation strategy well documented in freshwater cyprinids experienci ...
... Recent evidence that freshwater fishes diversify faster than marine fishes signifies that the evolutionary history of biodiversity in freshwater system is of particular interest. Here, the evolutionary diversification events of African Cyprinidae, a freshwater fish family with wide geographic distribution, were reconstructed and analysed. The overall diversification rate of African Cyprinidae is 0 ...
... DNA sequence data became an integral part of species characterization and identification. Still, specimens associated with a particular DNA sequence must be identified by the use of traditional morphology-based analysis and correct linking of sequence and identification must be ensured. Only a small part of DNA sequences of the genus Diplostomum (Diplostomidae) is based on adult isolates which are ...
... With the aim of examining how Eurasian otters (Lutra lutra) face human-mediated environmental alterations, we assessed their diet by spraint analysis on the River Ticino (NW Italy), where this mustelid has been reintroduced in 1997. From March 2016 to March 2017, a total of 101 spraints was found in 50% of 32 sampling stations (mean length ± SD = 567 ± 263 m). Fish formed the bulk of otter diet (9 ...
... The effectiveness of antifreeze proteins as cryoprotectants for cryopreservation of genital materials has been always controversial in the literature. In the present study, we evaluated the effect of antifreeze proteins in cryopreservation of sperm in four fish species (66.6% Acipenseridae, 11.1% Cyprinidae, and 22.2% Sparidae). PubMed, Scopus, Web of Science, and Google Scholar search engines wer ...
Cyprinidae; fish culture; fish feeding; digestible energy; digestible protein; lipids; pelleted feeds; experimental diets; feed formulation; feed composition; animal growth; liveweight gain
Abstract:
... To assess the apparent protein, lipid and energy digestibility coefficients of commonly used feed ingredients, viz. fish meal, groundnut oil cake, soybean meal, sunflower oil cake, sesame oil cake, mustard oil cake, rice bran, maize meal, black gram husk, green gram husk and wheat bran, a 50-day trial was conducted for Puntius gonionotus fingerling (5.55 ± 0.32 g) in two successive phases using fl ...
Cyprinidae; data collection; fish; watersheds; Italy
Abstract:
... Stock-density indices are standardized methods for analyzing length-frequency data that quantify the length structure of a fish population into length categories that are of interest to recreational anglers. We adapted North American relative stock density (RSD) and proportional stock density (PSD) indices to four Italian endemic or native cyprinid species by means of two methods. In accordance wi ...
... Parasites potentially have important roles in aquatic ecosystems, although relatively little is known about their contributions to the complexity of food web structure. In this study, stable carbon and nitrogen isotope analyses (δ¹³C and δ¹⁵N) were applied for fish host–parasite systems in a shallow swamp–lake ecosystem to assess the validity of stable isotope technics to reveal the parasite-media ...
Cyprinidae; environmental factors; females; males; mating behavior; phenotype; population density
Abstract:
... Mating between different species is ubiquitous in nature. While environmental conditions and population density have been shown to affect the occurrence of heterospecific matings, much less is known about the potential role of individual characteristics. Here, we examined the association between boldness and mate choice to con- and heterospecifics in a cyprinid fish (Pseudaspius sachalinensis) whi ...
... The goal of protecting the aquatic environment through testing thousands of chemicals against hundreds of aquatic species with thousands of endpoints while also considering mixtures is impossible given the present resources. Much of the impetus for studies on micropollutants, such as pharmaceuticals, came from the topic of endocrine disruption in wild fish. But despite concern over reductions in f ...
... Terrestrial arthropods might represent an important energy source for stream predators, but these trophic linkages have seldom been studied in the tropics. Terrestrial arthropod inputs (essentially, arthropod 'rain') into four streams with different riparian vegetation (two draining shrublands and two draining forests) were measured over three consecutive seasons (dry, wet, dry) from 2005 to 2007 ...
Cyprinidae; breeding season; digestive system; fish; food consumption; frequency distribution; habitats; indigenous species; rivers; semiarid zones; spawning; Great Plains region; North America
Abstract:
... Pelagic broadcast spawning cyprinids are a mobile group of fishes commonly found within semi-arid areas of the Great Plains of North America. In several species, upstream movements of 50 to 200 km have been reported and associated with reproductive migration. Long distance migrations also are associated with finding food and refuge. Goals of this study were to detect synchronous movement of Prairi ...
Katrina A. Macintosh; Hannah Cromie; Elena Forasacco; Kevin Gallagher; Fiona L. Kelly; Yvonne McElarney; Eugene O'Kane; Andrew Paul; Brian Rippey; Robert Rosell; Louise Vaughan; Colleen Ward; David Griffiths
... The Water Framework Directive was widely welcomed because it sought to integrate chemical and biological elements of aquatic ecosystems to achieve ‘good ecological status’, reflecting at most slight anthropogenic impact. However, implementation has been criticised because of the failure to adequately integrate these elements and assess status of the whole ecosystem. In this study, a suite of envir ...
Cyprinidae; biomass; chlorophyll; community structure; dissolved organic matter; eutrophication; fish communities; habitats; lakes; monitoring; pelagic fish; planktivores; remote sensing; surface water; water quality
Abstract:
... Remote sensing techniques may provide a higher temporal and spatial resolution than traditional water monitoring methods. We tested if this auxiliary information can be used to (i) explain patterns in fish assemblage composition and (ii) test candidate metrics to assess ecological status in large lake water bodies. We used MERIS-derived layers describing chlorophyll a, total suspended matter, and ...
... Mahseer (Tor spp., Cyprinidae) are iconic, large‐bodied, migratory freshwater fishes of Asian rivers. Long valued as a food source and serving other societal roles, these fishes are severely threatened by a broad range of interacting and escalating human impacts, including dam construction, water pollution, over‐exploitation, and habitat destruction. Mahseer fishes are therefore beneficial to peop ...
Cyprinidae; Salmo salar; Silurus glanis; adults; biodiversity; dams (hydrology); ecosystems; fauna; fish communities; fish ladders; indigenous species; introduced species; periodicity; potamodromous fish; rivers; species reintroduction; spring; Belgium; North Sea
Abstract:
... A river is an ecosystem where fish fauna represents an important structural element. To re-establish connectivity, it is imperative to allow movement between functional habitats. Due to the hydromorphological complexity of large anthropized rivers and the lack of study techniques that can be used in such environments, relevant data with regard to fish ecology are scarce. On the River Meuse, Belgiu ...
Cyprinidae; Salmo trutta; agricultural land; baitfish; bass; biodiversity; data collection; environmental management; game fish; humans; land use; pollution; streams; uncertainty; watersheds; Pennsylvania
Abstract:
... Monitoring long-term changes in aquatic biodiversity requires the effective use of historical data that were collected with different methods and varying levels of effort. Aggregating data into different spatial scales can control for such differences and provide a robust framework for monitoring distribution trends. We used a quantitative, multi-scale assessment to evaluate the potential drivers ...
... Large rivers are highly important systems that require close monitoring of the ecological consequences of factors like commercial and recreational exploitation, channel alterations, and climate change. The Long‐Term Survey and Assessment of Large River Fishes in Illinois (LTEF) monitors the fish communities of the Illinois, Mississippi, Wabash, and Ohio rivers using daytime, pulsed‐DC electrofishi ...
Cyprinidae; Margaritifera margaritifera; Salmo trutta; aquatic invertebrates; biodiversity; biodiversity conservation; conservation areas; fauna; freshwater; humans; macroinvertebrates; pearl mussels; social welfare; trout; water quality; Portugal
Abstract:
... Freshwater ecosystems are essential to human well‐being and most have high biodiversity. However, this biodiversity has been suffering severe declines owing to the expansion of human activities. Protected areas (PAs) are essential for biodiversity conservation and have proved to be successful in stopping species extirpation if managed properly. Unfortunately, they are usually focused on terrestria ...
Catostomidae; Chara; Cladocera; Copepoda; Cyprinidae; Dreissena; Gobiidae; Rotifera; Scirpus; aquatic plants; fish larvae; gears; habitats; light traps; nauplii; river deltas; rivers; surveys; wetlands; zooplankton; Great Lakes
Abstract:
... The St. Clair River delta, part of the St. Clair-Detroit River System (SCDRS), is the most fished coastal wetland area in the Laurentian Great Lakes and provides nursery habitat for a variety of fish species; however, few large-scale surveys of larval fish have been performed within the delta since the 1980s. Larval fish, zooplankton, and aquatic plants were sampled at 20 sites from May through Ju ...
Cyprinidae; Ephemeroptera; Trichoptera; anthropogenic stressors; biological assessment; data collection; eggs; environmental factors; environmental health; environmental quality; fish; habitats; land use; macroinvertebrates; omnivores; rivers; streams; watersheds; China
Abstract:
... Recently, the concurrent use of multiple taxonomic groups in stream bioassessment is becoming increasingly common because the responses of each group to anthropogenic stressors may be different. In this study, a multimetric index based on fish and macroinvertebrate assemblages for the Huntai River basin (MMIHT) was developed using a dataset covering 54 sampling sites in order to assess ecosystem h ...
... Engraulicypris sardella (Günter, 1868) is a cyprinid fish exploited in the waters of Lake Nyasa that has been found to be infested by Ligula intestinalis (Linnaeus, 1758). Although L. intestinalis has been the subject of a number of studies, there is no information on the effects of this parasite on E. sardella . This study was therefore aimed at assessing the prevalence and intensity of the paras ...
... Autophagy and apoptosis are two key cell fate determination pathways, which play vital roles in the interaction between viruses and host cells. Previous research had confirmed that one strain of fish rhabdoviruses, Siniperca chuatsi rhabdovirus (SCRV), could induce apoptosis and autophagy after infection. In the current study, we continued to analyze the interaction of autophagy and apoptosis in S ...
... Autophagy and apoptosis play important roles in the occurrence and development of diseases. Largemouth bass virus (LMBV) is a primary agent that causes infectious skin ulcerative syndrome in largemouth bass and threatens the aquaculture of the species. We investigated the relationship between LMBV and autophagy, as well as the effect of autophagy on apoptosis induced by LMBV. Results showed that L ...
water pollution; environmental exposure; freshwater fish; Cyprinidae; rivers; estrogenic properties; pollutants; agricultural runoff; wastewater; vitellogenin; reverse transcriptase polymerase chain reaction; messenger RNA; endocrine-disrupting chemicals; cattle; point source pollution; intensive farming; spatial data; water quality; Alberta
Abstract:
... Environmental compounds with estrogen- or antiestrogen-like activity can enter rivers from multiple sources, including municipal wastewater and agricultural runoff. We used longnose dace (Rhinichthys cataractae) to investigate exposure to compounds with estrogen-like activity, which we measured in water at multiple sites in the Oldman and Bow rivers (AB, Canada). We evaluated changes in vitellogen ...
Cyprinidae; age structure; fecundity; habitats; males; sex ratio; Siberia
Abstract:
... We analyze Distribution and habitats of the belica (Leucaspius delineatus), a species accidentally introduced to waterbodies of southwest Siberia. The northern limits of the range of this species in the region are determined. Data are given on the sex ratios, size and age structure, growth, feeding, fecundity, and time and conditions of spawning of the belica in waterbodies of different types. It ...
... The results of the comparative study of molecular biomarkers of oxidative stress and biotransformation of some representatives of the families Cyprinidae and Mugilidae from estuaries of rivers which enter Peter the Great Bay are presented. The haarder mullet Liza haematocheila is used as an indicator species for monitoring the degree of environmental pollution. The basic values of biochemical para ...
... High-throughput sequencing of the 16S rRNA gene of microbial communities was used to investigate how biofloc technology (BFT) improved water quality and fish yield in freshwater pond aquaculture. Three treatments included conventional treatment (CT), biofloc treatment (BT) and biofloc systems augmented with floc-forming bacterium (Zoogloea resiniphila MMB) treatment (BZT). The feeding trial lasted ...
... Body size is one of the most important traits influencing an organism’s ecology and a major axis of evolutionary change. We examined body size disparification in the highly speciose North American minnows (Cyprinidae), which exhibit diverse body sizes and ecologies, including the giant piscivorous pikeminnows. We estimated a novel phylogeny for 285 species based on a supermatrix alignment of seven ...
Snorre Gulla; Sion Bayliss; Bryndís Björnsdóttir; Inger Dalsgaard; Olga Haenen; Eva Jansson; Una McCarthy; Felix Scholz; Maaike Vercauteren; David Verner-Jeffreys; Tim Welch; Tom Wiklund; Duncan J Colquhoun
... A recently described typing system based on sequence variation in the virulence array protein (vapA) gene, encoding the A-layer surface protein array, allows unambiguous subtyping of Aeromonas salmonicida. In the present study, we compile A-layer typing results from a total of 675 A. salmonicida isolates, recovered over a 59-year period from 50 different fish species in 26 countries. Nine novel A- ...
Christian Skov; Joan H. Hansen; Henrik Baktoft; Jakob Brodersen; Christer Brönmark; Lars-Anders Hansson; Kaj Hulthén; Ben B. Chapman; P. Anders Nilsson
... Removal of cyprinid fish is a widely used biomanipulation tool to transform turbid shallow eutrophic lakes in north temperate regions into a clear water state. We here evaluate the removal of cyprinids from streams as a supplement to lake fishing. Since cyprinids often aggregate in high densities in lake inlet/outlet streams during winter migration, removal of fish in this space-confined habitat m ...
... Bony Fishes from the Late Miocene and Pliocene Strata of Popovo Locality (Ukraine): Taxonomic Changes and Their Palaeoecological Explanation. Kovalchuk, О. М. - Th e present paper deals with results of studying of the fossil fish remnants from the Late Miocene and Pliocene strata of Popovo locality (Southern Ukraine). Our aim was to show local taxonomic changes in freshwater fish communities throu ...
fish culture; endangered species; Cyprinidae; live feeds; Artemia; spawning; freshwater aquaculture; freshwater fish; fish larvae; indigenous species; animal breeding; life cycle (organisms); fish feeding; Sri Lanka
Abstract:
... This study was aimed to develop captive breeding and nurture the young of stonesucker (Garra ceylonensis, Bleeker), a small threatened freshwater fish species endemic to Sri Lanka. Breeding of stonesucker was possible under indoor conditions without hormonal stimulation. They were single spawners having a fecundity of 562 +/- 176 eggs per fish (total length of 7.9 +/- 0.6 cm) with an egg size of 7 ...
... Premating barriers such as variation in reproductive behaviour can evolve quickly, but because gametic and postzygotic incompatibilities often evolve more slowly, circumstances that bring gametes into contact can breach the boundaries of premating isolation. In aquatic environments, the gametes of organisms with external fertilization are released into a constantly moving environment and may come ...
Cyprinidae; lakes; minnows; morphometry; watersheds; Japan; Kazakhstan; Poland; Russia
Abstract:
... The lake minnow Eupallasella percnurus is distributed throughout a vast area that includes most of Europe and northern Asia and displays a wide range of morphological variation, which resulted in five distinguished subspecies. There are no previous conclusive morphometric analyses of samples from different parts of the distribution area. This paper presents results of multidimensional analyses of ...
water quality; community structure; monitoring; stream channels; Cyprinidae; erosion control; wildlife habitats; watersheds; fish; ecological restoration; aquatic habitat; water erosion; Southeastern United States
Abstract:
... Degradation of warmwater streams in agricultural landscapes is a pervasive problem, and reports of restoration effectiveness based on monitoring data are rare. Described is the outcome of rehabilitation of two deeply incised, unstable sand-and-gravel-bed streams. Channel networks of both watersheds were treated using standard erosion control measures, and aquatic habitats within 1-km-long reaches ...
... Fishes in the superorder Ostariophysi have excellent hearing due to the presence of a synapomorphic hearing specialization called the Weberian apparatus. This structure connects the swim bladder to the inner ear, and increases both sensitivity and upper hearing range. Although numerous experiments have tested the effects of the Weberian apparatus on hearing, few have provided potential evidence fo ...
... We investigated the carbon, nitrogen, and phosphorus levels in whole fish and gut samples of several species of cyprinids, relating our findings to nutrient flux models. Some differences in whole‐fish nutrient content across species, lakes, and seasons, as well as differences across fish length and mass, were found. N and P contents were highest in fathead minnows and lowest in pearl dace, with no ...
... The role of aquatic resources to food security is both promising and constrained since the global seafood consumption is increasing while marine fisheries approach the limit of what it can produce. In Sweden, the seafood consumption per capita is higher than the European and world average but the current dietary advice is to increase consumption. Freshwater fisheries have in general been paid less ...
Cyprinidae; biodiversity; correlation; ecological invasion; environmental factors; land cover; minnows; models; prediction; watersheds; Eastern United States
Abstract:
... Understanding the drivers of biological invasions is critical for preserving aquatic biodiversity. Stream fishes make excellent model taxa for examining mechanisms driving species introduction success because their distributions are naturally limited by catchment boundaries. In this study, we compared the relative importance of catchment‐scale abiotic and biotic predictors of native and nonindigen ...
Cyprinidae; breeding sites; ecosystems; fish; fish production; fisheries; fisheries management; fishery resources; issues and policy; lakes; livelihood; managers; planning; population growth; poverty; socioeconomics; soil erosion; stakeholders; water quality; watersheds; Malawi
Abstract:
... This paper reviews the management challenges facing Malawi lakes and analyzes the management responses that have been developed to deal with these challenges. Malawi lakes are under considerable stress due to high population growth and increasing levels of poverty which have led to overexploitation of fishery resources. High rates of soil erosion in the lake catchments are increasing siltation of ...
... The objective was to investigate the effects of extracellular osmolality and membrane osmotic-sensitive channels on the initiation of sperm motility and to explore mechanisms of sperm initiation in rosy barb (Puntius conchonius). We found that (1) sperm were immotile in seminal plasma and remained quiescent in electrolyte or nonelectrolyte solutions isotonic to seminal plasma; (2) sperm movement w ...
Cyprinidae; Salmo trutta; motivation; salmon; starvation; Black Sea
Abstract:
... Changes in the motivational component of rheoreaction (the ratio of rheoreaction types) during starvation in some fish species has been analyzed. The presence of fish motivation to migrate (before starvation) is the major pattern of the future changes in the motivational component of rheoreaction resulting from starvation. All fish of the families Cyprinidae and Salmonidae studied with initially b ...
... Changes in the ichthyofauna assemblages of three shallow dam reservoirs located in central and eastern Poland are presented based on long-term records of commercial fish catches. As the reservoirs age the evolution in the sizes of the shares of exploited fish species is depicted by temporal trend lines described with regression functions. The species targeted by commercial fishing are assigned to ...
... Infection with the liver fluke Opisthorchis viverrini sensu lato (s.l.), a group 1 carcinogen, is the most important risk factor for developing cholangiocarcinoma (CCA) in Southeast Asia. Cholangiocarcinoma is a fatal disease with the world’s highest incidence being found in northeast Thailand. Liver fluke infection occurs through eating raw or partially cooked cyprinid fish containing metacercari ...
Cyprinidae; alleles; drainage; fish; genetic markers; genetic structure; habitat destruction; heterozygosity; loci; microsatellite repeats; overfishing; population genetics; population structure; China
Abstract:
... Highly specialized grade of Schizothoracine fishe is primarily distributed in the drainage of Qinghai‐Tibet Plateau and its surrounding region, which has precious biological resources. However, overfishing and habitat destruction have seriously affected the germplasm resources and population genetic structure of HSG, so it is a significance to search for reliable genetic markers to protect its wil ...
... Liver-expressed antimicrobial peptide-2 (LEAP-2) is a cationic antimicrobial peptide with two disulfide bonds, and it has been shown to play an important role in the host defence in fish, amphibians, birds and mammals. Here, we characterize LEAP-2 from Pelodiscus sinensis and identify its function. The deduced precursor of PsLEAP-2 was composed of 77 amino acids (aa), including a 22-aa signal pept ...
... Edwardsiella tarda is the causative agent of edwardsiellosis in fish. The genome sequence of a virulent strain EIB202 has been determined. According to the genome sequence, the lipopolysaccharide (LPS) synthesis cluster containing a putative O-antigen ligase gene waaL was identified. Here, the in-frame deletion mutant ΔwaaL was constructed to analyze the function of WaaL in E. tarda EIB202. The Δw ...
fish farms; Cyprinidae; ornamental fish; freshwater fish; fish diseases; bacterial infections; Streptococcus iniae; Gram-positive bacteria; animal pathogenic bacteria; fish culture; freshwater aquaculture; signs and symptoms (animals and humans); animal behavior; leukocytes; tissue degeneration; histopathology; Florida
Abstract:
... Streptococcus iniae was isolated from red-tail black shark(RTB shark) Epalzeorhynchos bicolor, and rainbow shark, E. erythrurus (fam: Cyprinidae), obtained from a local freshwater ornamental fish farm in Hillsborough county (FL). Darkening of the skin and lethargy were the first signs observed in infected sharks. Hemorrhages were observed on the ventral side of the body, on the head, and at the ba ...
Cyprinidae; conservation genetics; endangered species; mitochondrial genome; phylogeny; ribosomal RNA; start codon; transfer RNA; China
Abstract:
... Semilabeo obscurus is an endangered fish in China. In this study, the entire mitochondrial genome of S. obscurus was sequenced; it is 16498 bp long (GenBank accession number: MG560823) and contains 13 protein-coding genes (PCGs), two rRNA genes, 22 tRNA genes, and one control region (D-loop). 12 PCGs start with ATG, but COX1 uses GTG as the start codon. In addition, all tRNAs display the typical c ...
... Agouti-related protein (AgRP) is an important neuropeptide involved in the regulation of feeding in both mammals and fish. In this study, we have cloned the full-length cDNA sequence for AgRP in a cyprinid fish (Schizothorax prenanti). The AgRP gene, encoding 126-amino acids, was strongly expressed in the brain. The AgRP gene was detected in embryos at developmental stages. Further, its mRNA was d ...
Centrarchidae; Cyprinidae; Fundulus; Ictaluridae; catfish; data collection; habitats; indigenous species; invasive species; metropolitan areas; rivers; urbanization; water quality; Illinois
Abstract:
... How fish assemblages change over time in highly-modified urban rivers, where physical and chemical properties rarely mimic non-urban systems, has sparsely been documented. Data have been collected on fishes within the boundaries of the Chicago Metropolitan area routinely since the mid-1980’s. Representing fish assemblages in one of the largest cities of America, this dataset offers the ability to ...
... Dual color fluorescence in situ hybridization (FISH) was performed to study the simultaneous chromosomal localization of 18S and 5S ribosomal genes in the genus Tor for the first time. The 18S and 5S rDNAs in four Tor species were amplified, sequenced and mapped on the metaphase chromosomes. The number and distribution of 18S and 5S rDNA clusters were examined on metaphase chromosome spreads using ...
... Heat shock protein 90 (HSP90) is a highly conserved molecular chaperone important in the maturation of a broad spectrum of proteins. In order to evaluate the effect of copper (Cu2+) and cadmium (Cd2+) on the expression of HSP90 from Tanichthys albonubes (designated TaHSP90), the full-length complementary DNA (cDNA) of TaHSP90 was cloned using reverse transcription PCR and rapid amplification of cD ...
... The prevalence and mean intensity of metazoan parasite infection, the community characteristics (richness index, dominance index, evenness index and Shannon index of diversity) and the qualitative similarity of the metazoan parasite fauna among the species and families of the fishes were determined of 13 fish species of freshwater fishes of Kerala belonging to seven families. The metazoan parasite ...
... In this paper, four enzymes from different sources used for pesticide detection were tested and compared: homogenate from chicken liver, chicken brain and cyprinoids brain were made respectively in the laboratory and Acetylcholinesterase (AChE) was purchased from Musca domestica. The inhibition of AChE activity under different concentrations of omethoate, trichlorfon and dichlorvos were compared. ...
Cyprinidae; autumn; divergent evolution; indigenous species; mitochondrial DNA
Abstract:
... The variability of mtDNA in four Far Eastern endemic species of the genus Tribolodon was studied in the significant part of their areas. There was no close relationship between the lifetime and the level of mtDNA variability. The relation between the population genetic structure and the level of amphidromic species was revealed. The presence of mtDNA phylogroup differed in three of the four specie ...
Ameiurus melas; Centrarchidae; Cyprinidae; Gobiidae; Percidae; boats; fish behavior; freshwater; freshwater fish; noise pollution; wild fish
Abstract:
... Anthropogenic noise is globally increasing in aquatic ecosystems and causes adverse repercussions in many fish species, yet its effect on freshwater fish is not well understood. Here, we test the impact of boat noise on foraging and swimming behaviour on a number of wild freshwater fish species as well as captive black bullhead, Ameiurus melas, a common species in the Laurentian Great Lakes with k ...
... Spermatogenesis involves a series of cellular transformations and thousands of regulated genes. Previously, we showed that the triploid fish (3nBY) cannot produce mature spermatozoa. In the present study, evaluation of the testis microstructure revealed that germ cells of 3nBY could develop into round spermatids, but then degenerated, resulting in male infertility. In this study we comparatively a ...
... While the proliferation of the species‐rich teleost fish has been ascribed to an ancient genome duplication event at the base of this group, the broader impact of polyploidy on fish evolution and diversification remains poorly understood. Here, we investigate the association between polyploidy and diversification in several fish lineages: the sturgeons (Acipenseridae: Acipenseriformes), the botiid ...
Cyprinidae; Salmonidae; animal transport; biosecurity; disease occurrence; disease outbreaks; disease surveillance; disease transmission; fish; fish culture; industry; issues and policy; monitoring; prediction; risk; rivers; watersheds; zoning; England; Wales
Abstract:
... Disease poses a significant threat to aquaculture. While there are a number of factors contributing to pathogen transmission risk, movement of live fish is considered the most important. Understanding live fish movement patterns for different aquaculture sectors is therefore crucial to predicting disease occurrence and necessary for the development of effective, risk-based biosecurity, surveillanc ...
... The diplomonad genera are here represented by three highly diverse species, both free-living (Hexamita inflata), and parasitic (Spironucleus vortens and Giardia intestinalis). All three are moderately aerotolerant flagellates, inhabiting environments where O2 tensions are low and fluctuating. Many diplomonads are opportunistic pathogens of avian, terrestrial and aquatic animals. Hexamitids inhabit ...
... Habitat use by four grazing fishes in a rainforest stream was determined by direct observation (snorkeling) and microhabitat measurements for individual fish. Significant species heterogeneity (P < 0.004) occurred along two principal component gradients of velocity, depth and substrate and most pairwise species contrasts were significant. Abundant Paracrossochilus acerus (Cyprinidae) occupied the ...
... Three species of ornamental fishes in the subfamily Cyprininae (family Cyprinidae) namely, Epalzeorhynchos frenatum (Fowler, 1934), Puntigrus partipentazona (Fowler, 1934), Scaphognathops bandanensis Boonyaratpalin et Srirungroj, 1971 were studied by classical cytogenetic and fluorescent in situ hybridization (FISH) techniques. Chromosomes were directly prepared from kidney tissues and stained by ...
... Osteology of two cyprinid fishes, Cyprinion kais and C. macrostomum, from the Tigris-Euphrates basin was described and compared. Eight specimens of C. kais and ten specimens of C. macrostomum from Godarkhosh River (western Iran) were studied. The skeletal elements were prepared using clearing and softening methods and photographed. The differences between the two taxa include a deeper posterior po ...
Cyprinidae; Salmonidae; biomass; community structure; developmental stages; fish; fish communities; fisheries management; geography; multivariate analysis; rivers; species diversity; surveys; taxonomy
Abstract:
... Studies attempting to describe fish community structure in shallow riverine environments typically rely on electrofishing and/or visual (snorkelling) surveys, but few have addressed the relative efficiencies of these two methods at estimating fish density and biomass across wide ranges of geography, taxonomy and life history stages. Multiple paired electrofishing and visual surveys were conducted ...
Cyprinidae; Misgurnus anguillicaudatus; body size; diploidy; females; fish; growth performance; habitats; longevity; males; sex ratio; tetraploidy; watersheds; China; Yangtze River
Abstract:
... Diploids and tetraploids of the cyprinid loach Misgurnus anguillicaudatus coexist in many natural habitats in Asia. However, little is known about the biological and ecological differences between these two ploidy forms. We examined age, body size and growth rates of fish in a mixed ploidy population of M. anguillicaudatus in the Yangtze River basin in China. The sex ratios of both diploid and tet ...
... Albinism, a congenital genetic mutation, is rarely found in natural populations of cyprinid loach Misgurnus anguillicaudatus (Cypriniformes; Cobitidae). The entire mitogenome of albino M. anguillicaudatus (16,647 bp), which is found in a tributary of Korean river, represents a structural organization typical of a vertebrate mtDNA comprising of 13 protein coding genes (PCGs), two ribosomal RNAs (rR ...
Cichlidae; Cyprinidae; arid lands; biomass; body condition; correlation; dissolved oxygen; drought; dry season; fish; fish communities; fish health; freshwater ecosystems; land use; livelihood; nutrients; refuge habitats; rivers; water quality; Africa
Abstract:
... The ecology of dryland rivers is under-studied in Africa. During seasonal droughts, these rivers cease flowing resulting in disconnected pools that restrict the movement of aquatic species. Few studies have focussed on the conditions of these refugia or their effect on fish. We investigated the influence of pool size and water quality on the abundance and composition of fish, including body condit ...
... MicroRNAs (miRNAs) are a kind of small single-strand RNA molecules with lengths of 18–25nt, which do not encode any proteins. They play an essential role in gene expression regulation by binding to their target genes, leading to translational repression or transcript degradation. In this study, 23 miRNAs were predicted from five cyprinidae fishes by using a bioinformatics-based gene search based o ...
water pollution; weight; chemical composition; metabolism; acidification; national parks; ions; water quality; acid deposition; indicator species; Cyprinidae; body composition; streams; sodium; length; acid-base balance; Virginia
dopamine; dose response; threatened species; Cyprinidae; gonadotropin-releasing hormone; antagonists; dosage; spawning; water temperature; ovulation; animal breeding; breeding season
Abstract:
... Artificial reproduction of asp under controlled conditions was investigated using two different spawning agents based on luteinizing hormone releasing hormone (LHRH) analogues and dopamine antagonists (Ovopel and Ovaprim), during two successive spawning seasons. Fish in the Ovopel and Ovaprim treatment groups were treated with a dose equivalent to 2 pellets and 0.5mL per kg of body weight respecti ...
Cyprinid herpesvirus 3; Cyprinidae; DNA; RNA; birds; genes; koi; mammals; open reading frames; pretreatment; reptiles; transcription (genetics); viruses; water temperature
Abstract:
... Cyprinid herpesvirus-3 (CyHV-3) is the cause of a fatal disease in carp and koi fish. The disease is seasonal and appears when water temperatures range from 18 to 28°C. CyHV-3 is a member of the Alloherpesviridae, a family in the Herpesvirales order that encompasses mammalian, avian and reptilian viruses. CyHV-3 is a large double-stranded DNA (dsDNA) herpesvirus with a genome of approximately 295k ...
... The stomach contents of 229 great cormorants (Phalacrocorax carbo sinensis) shot between March and October 2009 along the Swedish east coast were analysed for differences in diet between gender, age, and breeding phase. Sticklebacks (Gasterosteus aculeatus and Pungitius pungitius) were the most common prey, followed by eelpout (Zoarces viviparus), herring (Clupea harengus membras), and cyprinids ( ...
... Fine-scale genetic studies are essential for understanding population connectivity and formulating appropriate conservation measures for freshwater inhabitants. Despite their significance, such studies remain relatively limited in South China and Asia in general. We examined the genetic structure of the predaceous chub Parazacco spilurus in Hong Kong by incorporating genetic data from both mitocho ...
... In South Africa, relatively small, but healthy populations of Opsaridium peringueyi remain in the middle reaches of the Luvuvhu, Blyde, Sabie and Pongolo Rivers. The species may be extinct in some rivers like the Shingwedzi and lower-Olifants and its status is uncertain in the Crocodile and lower Komati/Mlumati Rivers. In many cases the rivers are transformed by the combined impact of alien specie ...
... Aquaculture and mariculture are becoming an increasingly important source of food supply in many countries and regions. However, with the expansion of aquaculture and mariculture comes increasing emissions of greenhouse gases (GHG) which contribute to global warming and climate change. China leads the world in aquaculture and mariculture production, but there are no studies that systematically ass ...
... The aim of the present study was to know the cyclic changes in gonadal maturation and to investigate the various developmental stages of oocytes and testicular germ cells of snow trout, Schizopyge niger. A total of 316 fish specimens were procured from three sites of river Jhelum during November 2016 to October 2017 and the histological analysis of their gonad was carried out. The results of the p ...
... Pseudochondrostoma duriense and Pseudochondrostoma polylepis hybridize extensively with Achondrostoma oligolepis in natural populations. In this first survey, karyotypes were comparatively analyzed by C-, AgNOR- and CMA₃-banding procedures in pure (non-introgressed) fish specimens. Leuciscinae pattern was evidenced in the three species: metacentrics and submetacentrics dominance, a big subtelo/acr ...
Dimitris Tsaparis; Ioannis Konstantinidis; Anja Palandacic; Eleni Kalogianni; Maria Th. Stoumboudi; Roberta Barbieri; Leonidas Vardakas; Nicholas Koutsikos; Costas S. Tsigenopoulos
... The freshwater ichthyofauna of Greece is characterized by high diversity and endemism and faces various conservation challenges. Despite significant efforts, mainly with traditional assessment methods, the precise taxonomic status and geographic range of some of the currently acknowledged fish species remain insufficiently explored. Here, the results of the first comprehensive DNA barcoding survey ...
Anguillidae; Centropomidae; Cyprinidae; DNA barcoding; Malapteruridae; Schilbeidae; Tetraodontidae; biodiversity; cytochrome-c oxidase; freshwater; freshwater fish; genes; genetic variation; lakes; mitochondria; models; molecular biology; species identification; Egypt; Nile River
Abstract:
... The current study represents the first molecular characterization of freshwater fish species in Egypt from two major fish resources; the River Nile and Lake Nasser. A total of 160 DNA barcodes using a 655-bp-long fragment of the mitochondrial cytochrome oxidase subunit I (COI) gene were generated from 37 species belonging to 32 genera that represent 15 families from nine orders. The studied specie ...
Cyprinidae; effluents; fish; fish communities; fishermen; industry; physicochemical properties; rivers; species diversity; water quality; Pakistan
Abstract:
... In a recently published study we observed that effluents from marble industry affected physicochemical characteristics of River Barandu in District Buner, Pakistan. These changes in water quality due to marble effluents may affect fish community. The present study was therefore conducted to evaluate the impacts of marble industry effluents on fish communities in River Barandu using abundance, rich ...
Cyprinidae; Eubothrium; drainage systems; fish; freshwater; lakes; new species; parasitism; British Columbia
Abstract:
... A new species of Eubothrium is described from northern squawfish from lakes in northern British Columbia. Morphologically, Eubothrium tulipai differs from other Eubothrium species in the shapes of the scolex, ovary, and cirrus sac. The new species differs from E. rugosum and E. salvelini, the two other freshwater species located in the Fraser drainage system, in the protuberant, powerful bothria, ...
... The structural details of some muscles, ligaments, aponeurotic structures, and osteological features of the pharyngeal jaw apparatus of ember parrotfish Scarus rubroviolaceus were studied. During the preparation, the evidence of the presence of a palatal organ in this species, which is convergently similar to that of benthic fish species of Cyprinidae and Catostomidae, has been found. The indirect ...
... Monoclonal antibodies (MAbs) against spring viraemia of carp virus (SVCV), a severe disease in cyprinid fish, were prepared. Nine MAbs were characterised using Western blotting (WB) where all reacted with glycoprotein G, except for MAb 2E1, which showed no reactivity in WB. All nine MAbs showed specificity in an immunoperoxidase test. In ELISA assays, their titres ranged between 1:32 000 and 1:128 ...
... Ochetobius elongatus (Cyprinidae, Leuciscinae) was once an endemic species and widely distributed in numbers of rivers throughout South China. Nevertheless, the wild population of O. elongatus reduced dramatically in recent years due to anthropogenic impacts and it has been listed as a critically endangered species by IUCN. In this study, 26 novel single nucleotide polymorphism (SNP) markers were ...