Jump to Main Content
PubAg
Main content area
Search
Search Results
- Author:
- Lobo-da-Cunha, Alexandre; Calado, Gonçalo
- Source:
- Invertebrate biology 2008 v.127 no.1 pp. 33-44
- ISSN:
- 1077-8306
- Subject:
- Mollusca; diet; glycogen; glycosaminoglycans; granules; herbivores; histology; light microscopy; lysosomes; phylogeny; proteins; salivary glands; secretion; secretory granules; staining; transmission electron microscopy; ultrastructure
- Abstract:
- ... The ribbon-shaped salivary glands in Bulla striata were studied with light microscopy and transmission electron microscopy (TEM). Secretion is produced in tubules formed by two types of secretory cells, namely granular mucocytes and vacuolated cells, intercalated with ciliated cells. A central longitudinal duct lined by the same cell types collects the secretion and conducts it to the buccal cavit ...
- DOI:
- 10.1111/j.1744-7410.2007.00113.x
-
http://dx.doi.org/10.1111/j.1744-7410.2007.00113.x
- Author:
- Reed, Jane M.; Leng, Melanie J.; Ryan, Sandra; Black, Stuart; Altinsaçli, Selçuk; Griffiths, Huw I.
- Source:
- Biological conservation 2008 v.141 no.11 pp. 2765-2783
- ISSN:
- 0006-3207
- Subject:
- paleoecology; Mollusca; land use; stable isotopes; phosphorus; sediments; limnology; lakes; ecosystems; water pollution; temporal variation; fossils; water management; eutrophication; Bacillariophyta; carbonates; Ostracoda; surveys; karsts; submerged aquatic plants; environmental monitoring; Turkey (country)
- Abstract:
- ... The Ramsar site of Lake Uluabat, western Turkey, suffers from eutrophication, urban and industrial pollution and water abstraction, and its water levels are managed artificially. Here we combine monitoring and palaeolimnological techniques to investigate spatial and temporal limnological variability and ecosystem impact, using an ostracod and mollusc survey to strengthen interpretation of the foss ...
- DOI:
- 10.1016/j.biocon.2008.08.012
-
http://dx.doi.org/10.1016/j.biocon.2008.08.012
- Author:
- Ross, Robert M.; Long, Eric S.; Dropkin, David S.
- Source:
- Environmental monitoring and assessment 2008 v.145 no.1-3 pp. 323-338
- ISSN:
- 0167-6369
- Subject:
- Chironomidae; Coleoptera; Crustacea; Ephemeroptera; Mollusca; Nematoda; Plecoptera; Trichoptera; acid mine drainage; herbivores; limestone; macroinvertebrates; scrapers; streams; watersheds; Pennsylvania
- Abstract:
- ... We compared naturally alkaline streams with limestone lithology to freestone streams with and without acid mine drainage (AMD) to predict benthic macroinvertebrate community recovery from AMD in limestone-treated watersheds. Surrogate-recovered (limestone) and, in many cases, freestone systems had significantly higher macroinvertebrate densities; diversity; taxa richness; Ephemeroptera, Plecoptera ...
- DOI:
- 10.1007/s10661-007-0042-3
- PubMed:
- 18236166
-
http://dx.doi.org/10.1007/s10661-007-0042-3
- Author:
- Munari, Cristina; Mistri, Michele
- Source:
- Journal of biogeography 2008 v.35 no.9 pp. 1622-1637
- ISSN:
- 0305-0270
- Subject:
- fauna; Crustacea; ecoregions; linear models; benthic organisms; data collection; Mollusca; habitats; regression analysis; latitude; species diversity; Annelida; climatic factors; biogeography; macroinvertebrates
- Abstract:
- ... For conservation purposes, it is important to understand the forces that shape biodiversity in transitional waters (TWs) and to evaluate the effects of small-scale latitudinal changes. To this end, we analysed data on soft-sediment macroinvertebrates from nine Italian TWs in order to (1) investigate the structure and distribution of the benthic fauna and their relationships with environmental and ...
- DOI:
- 10.1111/j.1365-2699.2008.01919.x
-
http://dx.doi.org/10.1111/j.1365-2699.2008.01919.x
- Author:
- Spanos, Thomas; Simeonov, Vasil; Simeonova, Pavlina; Apostolidou, Eleni; Stratis, John
- Source:
- Environmental monitoring and assessment 2008 v.143 no.1-3 pp. 215-225
- ISSN:
- 0167-6369
- Subject:
- heavy metals; lead; marine environment; cluster analysis; carbon; Mollusca; sediments; linear models; data collection; least squares; cadmium; coasts; cobalt; copper; Polychaeta; benthic organisms; principal component analysis; chromium; Crustacea; zinc; nickel; Bulgaria; Black Sea
- Abstract:
- ... The environmetric data analysis of analytical datasets from sediment and benthic organisms samples collected from different sampling sites along the coast of Black Sea near to City of Varna, Bulgaria has given some important indications about the bioindication properties of both type of samples. Various multivariate statistical methods like cluster analysis, principal components analysis, source a ...
- DOI:
- 10.1007/s10661-007-9970-1
-
http://dx.doi.org/10.1007/s10661-007-9970-1
- Author:
- Ayres, Kathryn R.; Sayer, Carl D.; Skeate, Eleanor R.; Perrow, Martin R.
- Source:
- Biodiversity and conservation 2008 v.17 no.9 pp. 2153-2168
- ISSN:
- 0960-3115
- Subject:
- Characeae; Mollusca; Najas marina; Nymphaea alba; fauna; lakes; limnology; littoral zone; macrophytes; meadows; molluscs; paleontology; sediments; swamps; water management; United Kingdom
- Abstract:
- ... This palaeolimnological study investigates recent changes in the biological structure of an English shallow lake (Upton Great Broad, Norfolk). By focusing on the historical occurrence of submerged macrophytes, particularly the rare UK species, Najas marina L. (Holly-leaved Naiad), we address a management question that frequently arises for shallow lakes, namely whether to undertake sediment remova ...
- DOI:
- 10.1007/s10531-007-9223-1
-
http://dx.doi.org/10.1007/s10531-007-9223-1
- Author:
- Wanninger, A.
- Source:
- Acta biologica Hungarica 2008 v.59 no.0 pp. 127-136
- ISSN:
- 0236-5383
- Subject:
- Annelida; Bryozoa; Mollusca; adults; larvae; metamorphosis; molluscs; monophyly; nerve tissue; neurodevelopment; neurogenesis; neurophysiology; ontogeny; ventral nerve cord
- Abstract:
- ... Recently, a number of neurodevelopmental studies of hitherto neglected taxa have become available, contributing to questions relating to the evolution of the nervous system of Lophotrochozoa (Spiralia + Lophophorata). As an example, neurogenesis of echiurans showed that these worm-shaped spiralians, which as adults do not exhibit any signs of segmentation, do show such traits during ontogeny, e.g. ...
- DOI:
- 10.1556/ABiol.59.2008.Suppl.21
-
http://dx.doi.org/10.1556%2FABiol.59.2008.Suppl.21
- Author:
- Karatayev, Alexander Y.; Burlakova, Lyubov E.; Dodson, Stanley I.
- Source:
- Hydrobiologia 2008 v.605 no.1 pp. 99-112
- ISSN:
- 0018-8158
- Subject:
- macrophytes; dissolved organic carbon; molluscs; nutrients; Mollusca; Copepoda; correlation; lakes; sulfates; water hardness; chemical concentration; freshwater; phytoplankton; benthic organisms; variance; principal component analysis; Chlorophyta; Rotifera; species diversity; hydrochemistry; Bacillariophyta; nitrogen; chlorides; Cyanobacteria; Trichoptera; Chironomidae; Belarus
- Abstract:
- ... Our purpose was to explore relationships of freshwater planktonic and benthic community species richness with water chemistry parameters using a dataset of biological, chemical, and physical data from 550 lakes. This was done using multivariate (ordination), graphical, and correlation analyses. Although the lakes are rather similar in location (Belarus) and in being mostly eutrophic, they do show ...
- DOI:
- 10.1007/s10750-008-9323-2
-
http://dx.doi.org/10.1007/s10750-008-9323-2
- Author:
- Martinho, F.; Leitão, R.; Neto, J.M.; Cabral, H.; Lagardère, F.; Pardal, M.A.
- Source:
- Journal of applied ichthyology 2008 v.24 no.3 pp. 229-237
- ISSN:
- 0175-8659
- Subject:
- Amphipoda; Decapoda; Dicentrarchus labrax; Isopoda; Mollusca; Platichthys flesus; Polychaeta; Solea solea; bass; benthic organisms; estuaries; flounder; growing season; juveniles; population structure
- Abstract:
- ... The function of the Mondego estuary as a fish nursery habitat was investigated from June 2003 to June 2004 by comparing the timing of estuarine colonization with juveniles of sea bass Dicentrarchus labrax, flounder Platichthys flesus, and sole Solea solea, while also analysing their population structure, growth and diet composition. Differences in the onset of estuarine colonization were observed, ...
- DOI:
- 10.1111/j.1439-0426.2007.01049.x
-
http://dx.doi.org/10.1111/j.1439-0426.2007.01049.x
- Author:
- Woodcock, Skye Heather; Benkendorff, Kirsten
- Source:
- Aquaculture 2008 v.276 no.1-4 pp. 162-170
- ISSN:
- 0044-8486
- Subject:
- Mollusca; mollusc culture; animal growth; food consumption; feed conversion; mortality
- Abstract:
- ... Dicathais orbita is a predatory marine whelk of interest as a new source of protein for potential production in aquaculture. Establishment of a successful aquaculture industry based on this species will require optimisation of their diet for fast growth and survival, whilst maintaining a good proximate composition in the flesh. Here we compare the effects of four diets fed to juvenile D. orbita ov ...
- DOI:
- 10.1016/j.aquaculture.2008.01.036
-
http://dx.doi.org/10.1016/j.aquaculture.2008.01.036
- Author:
- Mendonça, Cristiane L. G. F.; Carvalho, Omar S.; Mota, Ester M.; Lenzi, Henrique L.
- Source:
- Parasitology research 2008 v.102 no.5 pp. 861-865
- ISSN:
- 0932-0113
- Subject:
- Angiostrongylus; Mollusca; carbohydrates; granules; intestines; larvae; larval development; lipids; molting; rodents; slugs
- Abstract:
- ... In life cycle of Angiostrongylus costaricensis, veronicellidae mollusks participate as the invertebrate host while rodents as the main vertebrate host. The current work shows a sequential larval development of A. costaricensis in Sarasinula marginata, individually killed and digested from day 1 to 43, post infection. Some larvae, recovered from sedimentation, were submitted to selective staining a ...
- DOI:
- 10.1007/s00436-007-0834-y
- PubMed:
- 18293010
-
http://dx.doi.org/10.1007/s00436-007-0834-y
- Author:
- Ashton, Tom; Riascos, Jose M.; Pacheco, Aldo
- Source:
- Helgoland marine research 2008 v.62 no.Supplement 1 pp. 107-110
- ISSN:
- 1438-387X
- Subject:
- El Nino; Mollusca; adults; islands; mollusc culture; Chile; Ecuador; Galapagos Islands; Gulf of California; Mexico
- Abstract:
- ... Cymatium (Monoplex) keenae Beu, 1970, the neopolitan triton, is a Ranellidae predator distributed in tropical and subtropical waters. In this study we report this species for the first time in Antofagasta Bay, northern Chile. Adult specimens have been found since June 2003 at depths ranging from 5 to 15 m in La Rinconada Marine Reserve (23°28′18″S, 70°30′46″W) in Antofagasta Bay, near a scallop fa ...
- DOI:
- 10.1007/s10152-007-0084-5
-
http://dx.doi.org/10.1007/s10152-007-0084-5
- Author:
- Bickel, T.O.; Closs, G.P.
- Source:
- Ecology of freshwater fish 2008 v.17 no.1 pp. 10-19
- ISSN:
- 1600-0633
- Subject:
- Chironomidae; Lagarosiphon major; Mollusca; Trichoptera; biodiversity; diet; ecosystems; fish; habitat destruction; habitats; invertebrates; lakes; littoral zone; macrophytes; spatial variation; temporal variation; New Zealand
- Abstract:
- ... Invasive macrophytes are usually associated with negative impacts on habitat quality and a threat to native biodiversity. However, they might provide the same beneficial functions of native macrophytes, i.e., the provision of food and shelter for fish, in the absence of native macrophytes. To assess the value of the invasive macrophyte Lagarosiphon major as a fish habitat, we investigated the spat ...
- DOI:
- 10.1111/j.1600-0633.2007.00249.x
-
http://dx.doi.org/10.1111/j.1600-0633.2007.00249.x
- Author:
- Kesarcodi-Watson, Aditya; Kaspar, Heinrich; Lategan, M. Josie; Gibson, Lewis
- Source:
- Aquaculture 2008 v.274 no.1 pp. 1-14
- ISSN:
- 0044-8486
- Subject:
- Mollusca; molluscs; probiotics; mollusc culture; bacterial infections; disease control
- Abstract:
- ... Aquaculture production of molluscs is worth US$11 billion per year and represents 65% of World mollusc product. A significant limitation to the industry is loss of stock through bacterial disease. Traditional methods to combat disease with antibiotics have been questioned and alternatives have been sought. The field of probiotics as well as the screening methods used to acquire probiotic strains f ...
- DOI:
- 10.1016/j.aquaculture.2007.11.019
-
http://dx.doi.org/10.1016/j.aquaculture.2007.11.019
- Author:
- Ramírez-Llodra, Eva; Ballesteros, Manuel; Company, Joan B.; Dantart, Luis; Sardà, Francisco
- Source:
- Marine biology 2008 v.153 no.3 pp. 297-309
- ISSN:
- 0025-3162
- Subject:
- Cnidaria; Decapoda; Echinodermata; Mollusca; Polychaeta; analysis of variance; biomass; canyons; fauna; fisheries; habitats; molluscs; spatial variation; temporal variation; Mediterranean Sea
- Abstract:
- ... The spatio-temporal variations in diversity, biomass and abundance of bathyal invertebrates (excluding decapod crustaceans, which have been analysed elsewhere) from the North-western Mediterranean margin are described. The upper canyon (∼450 m), middle slope (∼650 m) and lower slope (∼1,200 m) habitats were investigated throughout the year. The first two sites are visited daily by a specialised co ...
- DOI:
- 10.1007/s00227-007-0805-y
-
http://dx.doi.org/10.1007/s00227-007-0805-y