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You searched for: Journal Fisheries research Remove constraint Journal: Fisheries research Publication Year 2020 Remove constraint Publication Year: 2020 Source 2020 v.221 Remove constraint Source: 2020 v.221
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1. Abundance prediction and influence of environmental parameters in the abundance of Octopus (Octopus vulgaris Cuvier, 1797) in the Gulf of Cadiz

Author:
Sobrino, Ignacio; Rueda, Lucia; Tugores, Maria Pilar; Burgos, Candelaria; Cojan, Miguel; Pierce, Graham J.
Source:
Fisheries research 2020 v.221 pp. 105382
ISSN:
0165-7836
Subject:
Octopus vulgaris; animals; chlorophyll; confidence interval; environmental factors; fisheries; fishery resources; models; prediction; rain; rivers; species abundance; surface water temperature; surveys; turbidity; Atlantic Ocean
Abstract:
... Understanding the processes that influence octopus abundance is important in order to manage the fishing grounds and offer advice on the exploitation of this important resource. Fluctuations in abundance of exploited stocks may be due to a great variety of factors. However, in short-lived animals such as cephalopods, in which abundance depends on strength of the recruitment, it is well known that ...
DOI:
10.1016/j.fishres.2019.105382

2. Application of a 3-pass removal experiment to assess the yellow eel specific capture efficiency of a 1-ha enclosure

Author:
Dorow, Malte; Jünger, Jakob; Frankowski, Jens; Ubl, Claus
Source:
Fisheries research 2020 v.221 pp. 105409
ISSN:
0165-7836
Subject:
Bayesian theory; coastal water; data analysis; eel; fyke nets; models; monitoring; population density
Abstract:
... To monitor yellow eel densities in non-tidal coastal waters an enclosure approach was developed. With a boundary net a quadratic area of 1-ha is enclosed. To catch enclosed eels in each corner a fyke is installed and additionally fyke net chains are deployed. However, the unknown capture efficiency of the enclosure within the standard fishing time of 48 h limits the application for quantitative sa ...
DOI:
10.1016/j.fishres.2019.105409

3. A rapid, low-cost deep learning system to classify squid species and evaluate freshness based on digital images

Author:
Hu, Jun; Zhou, Chengquan; Zhao, Dandan; Zhang, Linnan; Yang, Guijun; Chen, Wenxuan
Source:
Fisheries research 2020 v.221 pp. 105376
ISSN:
0165-7836
Subject:
automation; digital images; freshness; models; squid; Pacific Ocean
Abstract:
... We developed and evaluated a rapid, low-cost system to classify squid in industrial production. This involved designing an easy-to-use handheld image-acquisition system combined with an automated, labor-saving, and efficient deep learning model (named “improved faster recurrent convolutional neural network”) to identify three squid species from the North Pacific Ocean. Three indicators, Accuracy, ...
DOI:
10.1016/j.fishres.2019.105376

4. Are coastal communities able to pay for the protection of fish resources impacted by climate change?

Author:
Tulone, Antonio; Crescimanno, Maria; Vrontis, Demetris; Galati, Antonino
Source:
Fisheries research 2020 v.221 pp. 105374
ISSN:
0165-7836
Subject:
attitudes and opinions; climate change; fish; fisheries; fisheries management; issues and policy; marine environment; motivation; people; surveys; willingness to pay; Italy; Sicily
Abstract:
... The purpose of this study is to examine inhabitants’ motivation and their willingness to pay to mitigate the impact of climate change on fish resources. Willingness to pay was tested empirically using survey data from 333 inhabitants of Sciacca, a fishing community in Sicily, Italy, which has the island’s second largest fishing fleet. People’s attitudes towards climate change, their degree of invo ...
DOI:
10.1016/j.fishres.2019.105374

5. Are we sure we eat what we buy? Fish mislabelling in Buenos Aires province, the largest sea food market in Argentina

Author:
Delpiani, G.; Delpiani, S.M.; Deli Antoni, M.Y.; Covatti Ale, M.; Fischer, L.; Lucifora, L.O.; Díaz de Astarloa, J.M.
Source:
Fisheries research 2020 v.221 pp. 105373
ISSN:
0165-7836
Subject:
DNA barcoding; Mustelus; financial economics; fish fillets; fraud; health effects assessments; law enforcement; markets; overfishing; processed meat; public health; raw fish; sharks; species identification; threatened species; traceability; Argentina
Abstract:
... The detection of substituted or mislabeled seafood may have different consequences on consumers and the environment, including economic losses due to potential commercial fraud, public health effects, uncontrolled impacts on fish species of threatened status, and damage to populations due to overfishing. The molecular identification of processed meat or specimens that lack diagnostic body parts is ...
DOI:
10.1016/j.fishres.2019.105373

6. Biological evidence of the presence of different subpopulations of Norway lobster (Nephrops norvegicus) in the Adriatic Sea (Central Mediterranean Sea)

Author:
Angelini, Silvia; Martinelli, Michela; Santojanni, Alberto; Colella, Sabrina
Source:
Fisheries research 2020 v.221 pp. 105365
ISSN:
0165-7836
Subject:
Nephrops norvegicus; females; fishery resources; males; Adriatic Sea; Mediterranean Sea
Abstract:
... Norway lobster (Nephrops norvegicus) is one of the most important crustacean species in terms of landings and commercial value for the Adriatic Sea. In this zone, this stock is composed by two different subpopulations, characterised by different growth features. This study focus on the biology of individuals from the two most important fishing grounds of the area, namely the “off Ancona” area and ...
DOI:
10.1016/j.fishres.2019.105365

7. Characterising investments in EU fisheries and defining their desirability

Author:
Carvalho, Natacha; Casey, John; Guillen, Jordi; Rodgers, Philip
Source:
Fisheries research 2020 v.221 pp. 105396
ISSN:
0165-7836
Subject:
European Union; basins; economic performance; economic sectors; fish; fisheries; fishing boats; leasing; natural capital; Atlantic Ocean; Mediterranean Sea
Abstract:
... In most economic sectors, increases in capital (i.e., investments) are often considered virtuous, indicating confidence in the future and expected growth. In fisheries, however, investments are often harmful, as they may lead to increases in fleet capacity, which is not desirable considering the fully exploited or overexploited status of most fish stocks (natural capital), and the dissipation of t ...
DOI:
10.1016/j.fishres.2019.105396
PubMed:
31902969
PubMed Central:
PMC6853412

8. Comparing spatial distribution modelling of fisheries data with single-area or spatially-explicit integrated population models, a case study of toothfish in the Ross Sea region

Author:
Mormede, Sophie; Parker, Steven J.; Pinkerton, Matthew H.
Source:
Fisheries research 2020 v.221 pp. 105381
ISSN:
0165-7836
Subject:
Dissostichus mawsoni; biomass; case studies; fish; fish communities; fisheries management; longline fisheries; models; population dynamics; spatial variation; surveys; time series analysis; Antarctica
Abstract:
... Most models used for assessing the status of fish stocks and providing quantitative advice for fisheries management are not spatially explicit despite the well-known spatial heterogeneity of fish populations. Statistical spatial distribution modelling, which can derive spatially-resolved biomass from catch rates, is a method increasingly used to infer trends in population biomass, particularly whe ...
DOI:
10.1016/j.fishres.2019.105381

9. Comparison of survival rates between domesticated and semi-native char using Bayesian multi-variate state-space model

Author:
Yamashita, Yasunori; Iwasaki, Yuichi; Matsubara, Toshimitsu; Suzuki, Kyuma; Kanzawa, Yuhei; Okuda, Takehiro; Nishina, Kazuya; Strüssmann, Carlos Augusto
Source:
Fisheries research 2020 v.221 pp. 105380
ISSN:
0165-7836
Subject:
Bayesian theory; Salmonidae; environmental factors; females; fish; hybrids; indigenous species; interspecific hybridization; juveniles; males; models; odds ratio; sport fishing; streams; survival rate; time series analysis
Abstract:
... Streams depleted of their native salmonid populations are often stocked with domesticated fish for supplementation. However, these domesticated salmonids have a lower adaptability to environmental conditions and thus have a lower survival rate than “native” salmonids. Recent studies suggest the stocking of “semi-native” strains of fish (hybrids between native males and domesticated females) as an ...
DOI:
10.1016/j.fishres.2019.105380

10. Declining fisheries and increasing prices: The economic cost of tropical rivers impoundment

Author:
Lima, Maria Alice; Leite Lima, Maria Alice; Rosa Carvalho, Adriana; Alexandre Nunes, Marcus; Angelini, Ronaldo; Rodrigues da Costa Doria, Carolina
Source:
Fisheries research 2020 v.221 pp. 105399
ISSN:
0165-7836
Subject:
Curimata; dams (hydrology); economic costs; fisheries; habitats; markets; migratory behavior; prices; rivers; sardines; time series analysis; Amazon River; Brazil
Abstract:
... This work tests the null hypothesis that the coefficients of the total landings, landed values, mean catches and price per kg of migratory and resident species are constant over time following the installation of two large run-of-the-river hydroelectric dams in a large tropical river. To identify shifts in catches and economic returns due to river impoundment, we inspected daily landing data (25-y ...
DOI:
10.1016/j.fishres.2019.105399

11. Defining spatial structure for fishery stock assessment

Author:
Cadrin, Steven X.
Source:
Fisheries research 2020 v.221 pp. 105397
ISSN:
0165-7836
Subject:
case studies; fisheries; fisheries management; model validation; models; population dynamics; population structure
Abstract:
... In principle, the spatial extent of fishery stock assessment should reflect the biological population, and major fishing patterns or population heterogeneity within the area should be represented. However, these theoretical requirements are commonly dismissed in practice, often when there is compelling evidence that spatial scope and structure is mis-specified and without testing if the mis-specif ...
DOI:
10.1016/j.fishres.2019.105397

12. Distribution of trace elements in the tissues of arrow squid (Nototodarus sloanii) from the Chatham Rise, New Zealand: Human health implications

Author:
Lischka, Alexandra; Pook, Chris J.; Pannell, Jennifer L.; Braid, Heather E.; Gaw, Sally; Bolstad, Kathrin S.R.
Source:
Fisheries research 2020 v.221 pp. 105383
ISSN:
0165-7836
Subject:
Ommastrephidae; adults; antimony; arsenic; cadmium; chromium; cobalt; copper; ecosystems; females; fisheries; food contamination; heart; human health; human nutrition; humans; iron; kidneys; lead; males; manganese; markets; mercury; nickel; seafood consumption; squid; vanadium; zinc; New Zealand
Abstract:
... The southern arrow squid, Nototodarus sloanii (Ommastrephidae), is a key species in New Zealand’s pelagic ecosystem and is commercially fished. Specimens in this study were caught along the Chatham Rise—one of New Zealand’s most heavily targeted fisheries areas. Nine different tissue types were analysed from 15 female and 15 male specimens for 13 trace elements (As, Cd, Co, Cr, Cu, Fe, Hg, Ni, Mn, ...
DOI:
10.1016/j.fishres.2019.105383

13. Drivers of recruitment dynamics in Japanese major fisheries resources: Effects of environmental conditions and spawner abundance

Author:
Kurota, Hiroyuki; Szuwalski, Cody S.; Ichinokawa, Momoko
Source:
Fisheries research 2020 v.221 pp. 105353
ISSN:
0165-7836
Subject:
environmental factors; environmental impact; fish; fish communities; fisheries; fishery resources; life history; species recruitment; time series analysis; uncertainty; Japan
Abstract:
... Identifying driving factors of recruitment dynamics is essential for understanding population dynamics of fisheries resources and managing them sustainably. Spawner abundance and environmental conditions have been assumed as driving factors of recruitment, and the relative influence of these two drivers in fish populations has been debated for a long time. We addressed this issue by applying cross ...
DOI:
10.1016/j.fishres.2019.105353

14. Ecosystem-based management can contribute to cooperation in transboundary fisheries: The case of pacific sardine

Author:
Cisneros-Montemayor, Andrés M; Ishimura, Gakushi; Munro, Gordon R.; Sumaila, U. Rashid
Source:
Fisheries research 2020 v.221 pp. 105401
ISSN:
0165-7836
Subject:
Sardinops sagax; climate; climate change; ecosystem management; ecosystems; financial economics; forage; game theory; governance; models; overfishing; profitability; sardines; stakeholders; sustainable fisheries; Canada; Mexico; Pacific Ocean; United States
Abstract:
... Transboundary fish stocks complicate sustainable fishing strategies, particularly when stakeholders have diverse objectives and regulatory and governance frameworks. Pacific sardine (Sardinops sagax) in the California Current is shared by up to three fishing nations— Canada, the United States, and Mexico—and climate-driven abundance and distribution dynamics can complicate cooperative fisheries, l ...
DOI:
10.1016/j.fishres.2019.105401

15. Exploring the embryonic development of upper beak in Octopus vulgaris Cuvier, 1797: New findings and implications for age estimation

Author:
Armelloni, Enrico Nicola; Lago-Rouco, María Jesús; Bartolomé, Aurora; Felipe, Beatriz C.; Almansa, Eduardo; Perales-Raya, Catalina
Source:
Fisheries research 2020 v.221 pp. 105375
ISSN:
0165-7836
Subject:
Octopus vulgaris; age determination; beak; developmental stages; eggs; embryogenesis; hatching; jaws; population dynamics; rearing; temperature
Abstract:
... The beak of cephalopods (in particular octopods, where statoliths are not suitable) is a useful tool for age estimation and the aging method provides essential information on cephalopod growth and life cycles. These parameters are valuable in the assessment of population dynamics and stock management. The embryonic development of cephalopod beaks is poorly known. The presence of pre-hatching incre ...
DOI:
10.1016/j.fishres.2019.105375

16. First evidence of a new spawning stock of Illex coindetii in the North Sea (NE-Atlantic)

Author:
Oesterwind, Daniel; Bobowski, Bianca T.C.; Brunsch, Anika; Laptikhovsky, Vladimir; van Hal, Ralf; Sell, Anne F.; Pierce, Graham J.
Source:
Fisheries research 2020 v.221 pp. 105384
ISSN:
0165-7836
Subject:
Illex; biomass; cold; eggs; females; geographical distribution; hatching date; males; maturity stage; spawning; squid; summer; temperature; North Sea
Abstract:
... Global changes drive abundance and distribution of species worldwide. It seems that at least some cephalopod stocks profit from global changes as indicated by increases in biomass and/or expansion of their geographical distribution, as appears to be the case for the commercially important ommastrephid squid Illex coindetii, in the North Sea. Based on the recently increased abundance of this specie ...
DOI:
10.1016/j.fishres.2019.105384

17. Habitat suitability of Pacific saury (Cololabis saira) based on a yield-density model and weighted analysis

Author:
Hua, Chuanxiang; Li, Fei; Zhu, Qingcheng; Zhu, Guoping; Meng, Lingwen
Source:
Fisheries research 2020 v.221 pp. 105408
ISSN:
0165-7836
Subject:
Cololabis saira; fisheries; fisheries management; fishery resources; habitats; model validation; models; prediction; statistical analysis; surface water temperature; Pacific Ocean
Abstract:
... The Pacific saury (Cololabis saira) supports one of the most important pelagic fisheries in the Northwestern Pacific Ocean. However, changing oceanographic conditions could result in difficulties in predicting fishing grounds and fishery management. We combined a yield-density model and weighted statistical analysis to develop a habitat suitability index (HSI) model to identify the relationship be ...
DOI:
10.1016/j.fishres.2019.105408

18. Hydrodynamic performance of bottom trawls with different materials, mesh sizes, and twine thicknesses

Author:
Bruno Thierry, Nyatchouba Nsangue; Tang, Hao; Liuxiong, Xu; You, Xingxing; Hu, Fuxiang; Achile, Njomoue Pandong; Kindong, Richard
Source:
Fisheries research 2020 v.221 pp. 105403
ISSN:
0165-7836
Subject:
drag coefficient; equations; fish; fish industry; geometry; hydrodynamics; models; mouth; nylon; prices; trawl nets
Abstract:
... Nowadays, the fishing industry faces several constraints such as continuous increase infuel price and decrease in fish stocks. Bottom trawl efficiency is mainly affected by the drag force of trawl net and sweep area during fishing operations. This study focuses on the drag of bottom trawl models constructed from traditional and new materials. A nylon net panel, a traditional material, was used in ...
DOI:
10.1016/j.fishres.2019.105403

19. Improved estimation of discard mortality rates with in situ experiments involving electronic and traditional tagging

Author:
Benoît, Hugues P.; Morfin, Marie; Capizzano, Connor W.
Source:
Fisheries research 2020 v.221 pp. 105398
ISSN:
0165-7836
Subject:
fish; fisheries; models; mortality; sample size; variance
Abstract:
... Reliable estimates of release or discard mortality (DM) rates for recreational and commercial fisheries are necessary for robust assessment of the effects of fishing on populations and for establishing effective regulatory measures concerning the release of fish. In situ experiments involving the tagging of released fish are most likely to produce accurate estimates given that experimental subject ...
DOI:
10.1016/j.fishres.2019.105398

20. Individual assignment and mixed-stock analysis of short mackerel (Rastrelliger brachysoma) in the Inner and Eastern Gulf of Thailand: Contrast migratory behavior among the fishery stocks

Author:
Kongseng, Sirithorn; Phoonsawat, Ratanavaree; Swatdipong, Akarapong
Source:
Fisheries research 2020 v.221 pp. 105372
ISSN:
0165-7836
Subject:
Rastrelliger; aquacultural and fisheries equipment; fisheries management; mackerel; microsatellite repeats; migratory behavior; overfishing; spawning; Thailand
Abstract:
... Short mackerel (Rastrelliger brachysoma) is a pelagic-neritic and the most economically important fish in Thailand with the value reached 190 M USD in 2013. The short mackerel is however classified as data deficient in IUCN Red List. In particular, short mackerel resource in the Gulf of Thailand is recently drastically decreased due to overfishing. In this study, we applied the individual assignme ...
DOI:
10.1016/j.fishres.2019.105372