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Estimating catch within integrated stock assessments: Distinguishing truth from error in sparse-spike data Fish. Res. (IF 2.4) Pub Date : 2024-03-16 Erik H. Williams, Kyle W. Shertzer
Collecting accurate information on catch levels from marine recreational fishing can be challenging and often results in highly uncertain estimates of landings and discards. Sparse spikes are a common characteristic of these data, with isolated values much higher (e.g., 2–4 times) the surrounding values in a time series of annual estimates. In many cases, it is unclear whether these spikes represent
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Interactive effects of fish handling and water temperature on reflex impairment of angled Rainbow Trout Fish. Res. (IF 2.4) Pub Date : 2024-03-16 Jessica A. Robichaud, Morgan L. Piczak, Luc LaRochelle, Jessica L. Reid, Auston D. Chhor, Peter E. Holder, Liane B. Nowell, Jacob W. Brownscombe, Andrew J. Danylchuk, Steven J. Cooke
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Effects of juvenile mortality on population dynamics of Penaeus semisulcatus: A case study from Sri Lanka Fish. Res. (IF 2.4) Pub Date : 2024-03-16 N. Ragavan, S. Kuganathan, D.C.T. Dissanayake
This study investigates the stock status of in the northern coastal waters of Sri Lanka. A total of 3967 shrimp were collected from the Jaffna lagoon and adjacent coastal waters during fortnightly field visits to major landing sites from April 2022 to March 2023. The monthly carapace length (CL) frequency data were grouped and analyzed using the TropFishR, LBI, and LB-SPR packages. The results revealed
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PIT tagging systems are suitable for assessing cumulative impacts of Mekong River hydropower plants on (upstream) fish migrations in Lao PDR Fish. Res. (IF 2.4) Pub Date : 2024-03-13 Wayne Robinson, Lee J. Baumgartner, Khampheng Homsombath, Nathan Ning, Khamla Phommachanh, Thonglom Phommavong, Thanasak Poomchaivej, Karl Pomorin, Dulce Simmanivong, Douangkham Singhanouvong, Phousone Vorasane
The Mekong River has the largest inland fishery in the world but is threatened by planned mainstem hydropower developments that could impact fish migration patterns. Here we provide direct evidence of long-distance migrations along the Mekong mainstem by , one of the 10 most important species in the Mekong River fishery. The migration included a 354 km passage through one current and three proposed
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Are we overthinking management zoning for the Tasmanian southern rock lobster fishery? A size of maturity approach Fish. Res. (IF 2.4) Pub Date : 2024-03-10 Stephen Bradshaw, Klaas Hartmann, Caleb Gardner, Katie Cresswell, Denham Parker
Crustacean fisheries, which are influenced by environmental drivers, can benefit from spatial management solutions. More size limit zones or other controls afford finer tuning of management solutions, but can also increase complexity in fishing operations. Defining management boundaries, and the feasibility of that compliance can be a balancing act between numerous stakeholders from commercial and
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Stock assessment of rock lobster stocks: Past, present and future Fish. Res. (IF 2.4) Pub Date : 2024-03-10 André E. Punt
The aim of stock assessment is to provide managers with an understanding of the biomass and age-/size-composition of a stock, stock status (ideally relative to target and reference points), and to support management decision making, often through projections and application of harvest control rules. Stock assessments are increasingly being used to form the basis for the operating models used to evaluate
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YOLOv7-DCN-SORT: An algorithm for detecting and counting targets on Acetes fishing vessel operation Fish. Res. (IF 2.4) Pub Date : 2024-03-10 Yueying Sun, Shengmao Zhang, Yongchuang Shi, Fenghua Tang, Junlin Chen, Ying Xiong, Yang Dai, Lin Li
The quantification of fishing information on fishing vessels is a prerequisite for implementing refined management of quota-based fishing. In order to address the target detection and information quantification issues in the quota-based fishing of , this study installed an Electronic Monitoring (EM) system on fishing vessels. Using the EM system video as a data source. Based on YOLOv7, an improved
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Growth, reproduction, and size at first maturity of the peppery furrow shell Scrobicularia plana in the Ria de Aveiro, Portugal: Implications for sustainable fisheries management Fish. Res. (IF 2.4) Pub Date : 2024-03-08 Francisco Maia, Miguel B. Gaspar, Carlos M. Barroso
The peppery furrow shell is a commercial valuable bivalve in the east Atlantic and Mediterranean Sea. To ensure the sustainability of this resource and implement efficient management strategies, it is essential to understand the life history traits of the species, such as growth, reproduction, and size at first maturity. These features were investigated in the southern range of the species' European
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Ecological risk assessment of invertebrates caught in Swedish west-coast fisheries Fish. Res. (IF 2.4) Pub Date : 2024-03-07 Linnéa Morgan, Daniel Valentinsson, Thomas G. Dahlgren, Sara Hornborg
Ecological risk assessments are important as scientific support for the implementation of ecosystem-based fisheries management. Marine invertebrates are important to ecosystem structure and function and may be sensitive to fishing pressure. Some are also of increasing commercial value – but have hitherto not been paid much attention to in ecological risk assessments. Here, catches of invertebrates
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Optimizing release strategies for red king crab stock enhancement: Effects of release timing Fish. Res. (IF 2.4) Pub Date : 2024-03-07 William Christopher Long, Benjamin J. Daly, Peter A. Cummiskey
Red king crab, , was commercially important around Kodiak, Alaska, USA, in the 1960s and 1970s; however, the stock crashed in the late 1970 s and has remained closed since 1983. The lack of recovery inspired consideration of stock enhancement through the release of hatchery-reared juveniles as a means to bolster the wild population. We examined the effects of release timing on survival of hatchery-reared
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Is small-scale fishing sustainable in Delta State, Nigeria? A glance into the problems and possible solutions Fish. Res. (IF 2.4) Pub Date : 2024-03-06 Arnold Ebuka Irabor, Oghenebrorhie Obakanurhe, Augustine Onyemaechi Ozor, Hardin Aaron Jn pierre, Oghenefejiro Adagha, Jovita Oghenenyerhovwo Sanubi, Augustine Ikechukwu Chukwurah, Ifie Idolo, Oster Francis Nwachi, Jerimoth Kesena Ekelemu, Florence Nkeonyeasua Olele, Samuel Azubuike Zelibe
Nigeria's fish import has witnessed a steady increase over the past 10 years and the projected figures continue to show an increase. Presently, small-scale fishing is considered a frontier in meeting the fish demands of Nigerians and causing a significant reduction in fish importation. In Delta State though practiced at a subsistence level, it has been recognized to have the potential to boost fish
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Species portfolio schemes buffering the risk of overexploitation in mixed fisheries management Fish. Res. (IF 2.4) Pub Date : 2024-03-02 Jia Wo, Binduo Xu, Yupeng Ji, Chongliang Zhang, Ying Xue, Yiping Ren
Mixed fisheries capture multiple species simultaneously, posing significant challenges to fisheries assessment and management, and leading to systematic risk of overfishing. While the Multi-Species Total Allowable Catch (MSTAC) approach provides a feasible tool for managing mixed fisheries, there remains a lack of clarity on how to design effective management units within MSTAC. To achieve robust and
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Chondrichthyes in the north-western Ionian Sea (central Mediterranean): Species diversity, abundance and spatio-temporal changes Fish. Res. (IF 2.4) Pub Date : 2024-03-02 Letizia Sion, Alessio Pollice, Porzia Maiorano, Crescenza Calculli, Francesca Capezzuto, Angela Carluccio, Pasquale Ricci, Gianfranco D’Onghia
This study provides an updated list of fish in the Class Chondrichthyes sampled during all research projects conducted in the north-western Ionian Sea from 1985 to 2020. A total of 36 Chondrichthyes species belonging to 8 orders and 19 families were detected, most of them distributed over a wide depth range, between shelf and slope. For species assessed by the International Union for Conservation of
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Factors affecting the variability of discards in Mediterranean bottom trawl fisheries Fish. Res. (IF 2.4) Pub Date : 2024-03-01 Konstantinos Tsagarakis, Walter Zupa, Alessandro Ligas, Claudia Musumeci, George Tserpes, Maria Teresa Spedicato
The current study examined the effect of environmental, operational, temporal and catch-related variables on the discard quantities of four species subject to the EU landing obligation (, European hake, HKE; , deep-water rose shrimp, DPS; , red mullet, MUT; , horse mackerel, HOM) caught in Italian and Greek bottom trawl fisheries. Generalized Additive Models were applied to discards per unit of effort
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The influence of population growth and weather on the value of recreational angling trips within Utah (USA) Fish. Res. (IF 2.4) Pub Date : 2024-02-29 Jordan W. Smith, Chase C. Lamborn
The decisions anglers make regarding where to fish involve trade-offs amongst the qualities of fishing sites. The types of sites available (e.g., streams, rivers, lakes, etc.), the costs associated with visiting potential sites, and other factors are all weighed in anglers’ site choice decisions. Economic models capable of quantifying the utility anglers derive from different site characteristics can
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Estimating fishing effort and LPUE for the Scottish brown crab (Cancer pagurus) trap fishery using VMS and observer data Fish. Res. (IF 2.4) Pub Date : 2024-02-29 Carlos Mesquita, Helen Dobby, Catherine S. Jones, Graham J. Pierce
Information on fishing effort by vessels fishing with traps in Scotland is limited. The recent availability of VMS data combined with landings information from vessel logbooks provides new opportunities to describe the spatial distribution of effort and catch for data-limited fisheries. This study evaluates the use of VMS data applied to trap fisheries and estimates an indicator of fishing effort for
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Predation on Baltic sea yolk-sac herring larvae (Clupea harengus) by the invasive ctenophore Mnemiopsis leidyi Fish. Res. (IF 2.4) Pub Date : 2024-02-28 Ina Stoltenberg, Felix Mittermayer, Catriona Clemmesen, Jan Dierking, Jamileh Javidpour
Western Baltic spring spawning herring ( L) is a commercially important fish stock currently suffering a strong decline. Larval survival is essential for stock recruitment and can be substantially decreased by predation. The comb jelly A. Agassiz, 1865, is a lobate ctenophore which is invasive to the Baltic Sea and a known ichthyoplankton predator. However, predation on herring larvae in the Baltic
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Length estimation of fish detected as non-occluded using a smartphone application and deep learning method Fish. Res. (IF 2.4) Pub Date : 2024-02-21 Yasutoki Shibata, Yuka Iwahara, Masahiro Manano, Ayumi Kanaya, Ryota Sone, Satoko Tamura, Naoya Kakuta, Tomoya Nishino, Akira Ishihara, Shungo Kugai
Uncertainty in stock assessment can be reduced if accurate and precise length composition of catch is available. Length data are usually manually collected, although this method is costly and time-consuming. Recently, some studies have estimated fish species and length from images using deep learning by installing camera systems in fishing vessels or a fish auction center (Álvarez -Ellacuria et al
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Management strategy evaluation of static and dynamic harvest control rules under long-term changes in stock productivity: A case study from the SESSF Fish. Res. (IF 2.4) Pub Date : 2024-02-20 Pia Bessell-Browne, André E. Punt, Geoffrey N. Tuck, Paul Burch, Andrew Penney
The harvest control rules (HCRs) for many fished marine populations rely on biological reference points. These reference points are often related to unfished biomass conditions () and are calculated assuming that biological parameters and their associated functional forms (e.g., unfished recruitment (), natural mortality (), growth) are stationary (‘static ’). However, there is increasing evidence
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Survivorship of discarded cuckoo ray in bottom trawl fisheries in the northern Bay of Biscay, Southern Celtic and Irish Seas Fish. Res. (IF 2.4) Pub Date : 2024-02-20 Loïc Baulier, Matthew McHugh, Cóilín Minto, Fabien Morandeau, Shane Murphy, Quiterie Sourget, Martin Oliver, Marie Morfin
Estimating the survivorship of discarded fish is often crucial for stock assessment and resultant management of fisheries resources. In order to assess the survivorship of cuckoo ray () caught in commercial bottom trawl fisheries, experiments involving French and Irish fisheries were conducted. These experiments were particularly challenging considering the fisheries are offshore. Data from these experiments
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Fishing behaviour and environmental variability influence depredation of pelagic longline catch by toothed whales Fish. Res. (IF 2.4) Pub Date : 2024-02-18 Erin Monaghan, Phillip Ravanello, David Ellis, Jessica A. Bolin, David Schoeman, Kylie L. Scales
Depredation is a threat to the socioeconomic and ecological sustainability of pelagic longline fisheries, globally. Toothed whales (odontocetes) are anecdotally reported as responsible for annual revenue losses of AU$10–12 million in Australia’s Eastern Tuna and Billfish Fishery (ETBF), presenting a challenge for industry and management in developing avoidance and mitigation techniques. We trialled
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Long-run productivity changes in the Australian Northern prawn fishery Fish. Res. (IF 2.4) Pub Date : 2024-02-16 Eriko Hoshino, Sean Pascoe, Peggy Schrobback, Stephanie McWhinnie, Robert Curtotti
This study examines long-run changes in productivity within the Australian Northern prawn fishery, an input control managed fishery. Productivity change is estimated through a Malmquist Index over a 20-year period from 1999–2000 to 2019–2020, decomposing productivity into technical change and efficiency change components. Fluctuations in the Malmquist Index over the period of the study were driven
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Taking the bait: Environmental factors affecting bait retention and hook disposition in the Gulf of Maine Bottom Longline Survey Fish. Res. (IF 2.4) Pub Date : 2024-02-16 Lindsey Noel Nelson, W. David McElroy, Andrew W. Jones, George A. Maynard, Chris Tholke, Anna J.M. Mercer
Longline fishery surveys are major contributors to groundfish species abundance estimates. Catchability is often assumed constant, but bait is lost or consumed at inconsistent rates during and across gear sets. Accounting for hook availability and gear saturation can improve abundance estimates, but these data are challenging to collect. Our objectives were to determine whether video camera systems
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An evaluation of common stock assessment diagnostic tools for choosing among state-space models with multiple random effects processes Fish. Res. (IF 2.4) Pub Date : 2024-02-15 Chengxue Li, Jonathan J. Deroba, Timothy J. Miller, Christopher M. Legault, Charles T. Perretti
State-space models have received increasing attention in fisheries stock assessments given their flexibility to incorporate multiple sources of process errors. Identifying which process errors to include is important because incorrectly including some process errors can induce bias in management quantities. Existing model selection tools commonly applied in traditional statistical catch-at-age models
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Habitat partitioning in Moreton Bay bug species to inform fisheries management Fish. Res. (IF 2.4) Pub Date : 2024-02-15 Nora R. Louw, Matthew N. McMillan, Naomi M. Gardiner, James Daniell, Eric M. Roberts
Habitat preferences influence partitioning in many marine taxa that can inform fisheries management. Despite this, little is known about how habitat partitioning contributes to spatial distributions in many commercially important species. This study aims to investigate habitat partitioning and influential variables affecting the distribution in Moreton Bay bug species and for the benefit of management
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Anatomical hooking location and bleeding occurrence in northern pike (Esox lucius) caught in recreational catch-and-release angling in a lake with reduced prey fish availability Fish. Res. (IF 2.4) Pub Date : 2024-02-14 Martin H. Larsen, O. Jonas Palder, Casper Gundelund, Nicolas Azana Schnedler-Meyer, Henrik D. Ravn, Christian Skov
Catch-and-release (C&R) is a common practice in recreational angling for northern pike (), whereby the angler releases the fish back into the water after capture with the expectation that it will survive with negligible stress and physical injuries. This may not always be the case, as hooking in critical anatomical locations, such as gills, esophagus, and stomach, increases the frequency of bleeding
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Price variation in the Caribbean spiny lobster fishery: Incentives for ongrowing wild-caught lobsters in Florida Fish. Res. (IF 2.4) Pub Date : 2024-02-12 Taryn Garlock, Frank Asche, Casey B. Butler, Thomas R. Matthews, Erica Ross
The Caribbean spiny lobster, , is historically one of Florida’s most valuable commercial fisheries. The creation of a live export market in the 2010s increased the value of this fishery despite declines in total landings and potentially provides an economic opportunity to enhance the value of the fishery. However, the market potential may be limited by a misalignment between fishery production and
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Interactions between White Sharks (Carcharodon carcharias) and artificial reefs along the east-coast of Australia Fish. Res. (IF 2.4) Pub Date : 2024-02-08 Alistair Becker, Paul A. Butcher, Stephen Morris, Curtis Champion, Victor M. Peddemors, Michael B. Lowry, Matthew D. Taylor
Artificial reefs are deployed for a variety of reasons, often to enhance the productivity of commercial or recreational fisheries. Threatened, endangered or protected (TEP) species are generally not the target of artificial reef programs, but may interact with the structures, raising questions as to whether the reefs might provide resources, or represent a threat due to aggregated fishing pressure
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The presence of nematodes in the liver of Baltic cod, Gadus morhua, is associated with a decline in condition factors and hepatosomatic index of the host Fish. Res. (IF 2.4) Pub Date : 2024-02-06 Magdalena Podolska, Katarzyna Nadolna-Ałtyn, Joanna Pawlak, Jan Horbowy
The poor state of cod in the Eastern Baltic is largely a consequence of biological changes in the stock during recent decades. One of several factors that may affect fish population dynamics is a high level of parasitic infection. Linear models were used to quantify the associations between two body condition factors, FCF and CF, and hepatosomatic index (HSI) with the level of nematode infection of
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Insights into the stock structure of Scomber colias Gmelin, 1789 along the Northwest African coast inferred from otolith shape analysis Fish. Res. (IF 2.4) Pub Date : 2024-01-31 Salah Eddine Sbiba, Alberto Teodorico Correia, Nikolaos Nikolioudakis, Hocein Bazairi, Malika Chlaida
Scomber colias Gmelin, 1789 is of growing interest as a commercial species, making it one of the most demanding fish on the northwest coasts of Africa (NWA). However, relevant data on the stock structure and connectivity of S. colias along the NWA is scarce. The Eastern Central Atlantic Fisheries Committee (CECAF) assumes the existence of two stocks (a northern and a southern stock) between Morocco
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Industry reported biological data informs population demographics and commercial fleet heterogeneity for American lobster (Homarus americanus) Fish. Res. (IF 2.4) Pub Date : 2024-02-02 C.J. Huntsberger, B. Shank, M.C. McManus, A. Ellertson, N.D. Bethoney
Characterization of the American lobster harvest has traditionally been conducted using at-sea observer or dockside coverage. However, doing so is challenging for the offshore fishery and can result in samples collected from only a few vessels, which may not represent the entire, diverse fleet. Additionally, there is no dedicated offshore fishery-independent survey for lobster resulting in limited
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The mechanism of gonadal development in response to environmental factors in dwarf-form individuals of female Sthenoteuthis oualaniensis in the South China Sea Fish. Res. (IF 2.4) Pub Date : 2024-02-01 Huajie Lu, Maolin Zhao, Ziyue Chen, Xinjun Chen
The gonadal development (GD) of cephalopods is highly sensitive to the environment. To explore the relationship between the GD of dwarf–form individuals of female () and the marine environment, this study used statolith age and analyzed the relationship between GD and the marine environment using a generalized additive model (GAM) for samples collected in the South China Sea from January–April and
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Biogeographic trends in populations of the shrimp Artemesia longinaris (Decapoda:Penaeidae) on the Atlantic coast of South America Fish. Res. (IF 2.4) Pub Date : 2024-01-28 Lia Sampognaro, Angel M. Segura
Detecting systematic trends in population parameters along large latitudinal patterns and analyzing them under a macroecological framework can provide useful information for fishery management. This becomes crucial for data-poor fisheries. Combining a metabolic-based argument to explain the decrease in size towards warmer environments (i.e. the temperature size rule, TSR) with the Beverton and Holt
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Capturing uncertainty when modelling environmental drivers of fish populations, with an illustrative application to Pacific Cod in the eastern Bering Sea Fish. Res. (IF 2.4) Pub Date : 2024-01-27 André E. Punt, Michael G. Dalton, Grant D. Adams, Steven J. Barbeaux, Wei Cheng, Albert J. Hermann, Kirstin K. Holsman, Peter-John F. Hulson, Thomas P. Hurst, Alberto Rovellini
Decision makers are increasingly requesting that environmental and climate drivers be included in stock assessments and subsequent projections that provide managers with advice on the consequences of applying harvest control rules. Another key direction in stock assessment science is to capture the full range of uncertainty (model, process, and estimation). However, multiple sources of uncertainty
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The spatio-temporal distribution of small-scale fisheries along the northern Panay Gulf, Philippines: Implications for management Fish. Res. (IF 2.4) Pub Date : 2024-01-22 Charmane B. Nochete, Rex B. Baleña
The small-scale fisheries along the northern region of the Panay Gulf face a distinctive challenge as multiple communities compete for access to the same fishing areas and resources. In response, neighboring coastal municipalities implemented conventional management measures, such as Marine Protected Areas (MPAs) and seasonal closures, aiming to enhance the abundance of fisheries resources. However
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Predicting delayed post-harvest mortality in American lobster (Homarus americanus) using reflex impairment Fish. Res. (IF 2.4) Pub Date : 2024-01-22 Cassandra Leeman, Deborah A. Bouchard, Eric Payne, Richard A. Wahle, Damian C. Brady
Post-harvest mortality in the American lobster (Homarus americanus) fishery can result in a significant loss in revenue for the largest single species fishery in North America. At least 2% of American lobster landed in Maine, USA die before they reach consumers. The landed value of the Maine lobster fishery was $730 million USD in 2021. Yet, the industry loses roughly 952 metric tons annually due to
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Whitemouth croaker (Micropogonias furnieri) are you ok? Reduction in nutritional condition of juveniles during winter in the Southwest Atlantic Ocean Fish. Res. (IF 2.4) Pub Date : 2024-01-22 Nadia M. Alves, Mara S. Braverman, Brenda Temperoni, Julieta S. Rodríguez, Marina V. Diaz
The whitemouth croaker Micropogonias furnieri is one of the most important coastal fishery resources in Argentina, southern Brazil, and Uruguay. Samborombón Bay (SB) is its main nursery area in Argentina, providing refuge for juveniles up to 2–3 years old. During their first year of life, juvenile growth occurs primarily during the summer period (November to January), with high growth occurring for
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Standardising long-term eel (Anguilla anguilla) fyke net survey data reveals covariate effects and improves estimates of declining relative abundance Fish. Res. (IF 2.4) Pub Date : 2024-01-17 Russell Poole, Cóilín Minto, Joseph Cooney, Alan Drumm, Pat Hughes, Michael Murphy, Pat Nixon, Ger Rogan, David Sweeney, Ciara O’Leary
Eel recruitment and stock have been in decline since at least the mid 1980s. So far, much research has focussed on conservation objectives and estimating silver eel production in response to the EU Regulation (EC 1100/2007) and most surveys have been on waters subject to exploitation and/or stocking. The aim of this study is to examine a 35-year yellow eel survey dataset to determine relative abundance
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Are state-space stock assessment model confidence intervals accurate? Case studies with SAM and Barents Sea stocks Fish. Res. (IF 2.4) Pub Date : 2024-01-13 Noel G Cadigan, Christoffer Moesgaard Albertsen, Nan Zheng, Anders Nielsen
Our main contribution is to examine the reliability of confidence intervals using the SAM state-space fish stock assessment model used for the assessment of many stocks by the International Council for the Exploration of the Seas. We focus on frequentist statistical inferences and more specifically on inference conditioned on specific values of the state-space model random effects drawn from their
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Towards automatic anomaly detection in fisheries using electronic monitoring and automatic identification system Fish. Res. (IF 2.4) Pub Date : 2024-01-15 Debaditya Acharya, Moshiur Farazi, Vivien Rolland, Lars Petersson, Uwe Rosebrock, Daniel Smith, Jessica Ford, Dadong Wang, Geoffrey N. Tuck, L. Richard Little, Chris Wilcox
To ensure sustainable fisheries, many complex on-vessel activities are periodically monitored to provide data to assist the assessment of stock status and ensure fishery regulations are being met. Such monitoring is often performed manually which is an exhaustive and expensive process. Consequently, several forms of Electronic Monitoring (EM) have emerged recently and include the use of electronic
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Reproductive biology of two small-bodied sharks, Carcharhinus coatesi and Rhizoprionodon acutus, in the Northern Territory, Australia Fish. Res. (IF 2.4) Pub Date : 2024-01-13 A.K. Kirke, D.A. Crook, S.C. Banks, O.J. Luiz, T.M. Saunders, A.J. King., G.J. Johnson
Sharks and rays are widely perceived to have slow reproductive rates and, thus, are often considered highly susceptible to population declines from commercial fishing. However, the reproductive biology of sharks is highly diverse, and some species can sustainably support significant commercial harvest. Small sharks are commonly caught and discarded as bycatch in several Australian and international
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Estimating angler effort and catch from a winter recreational fishery using a novel Bayesian methodology to integrate multiple sources of creel survey data Fish. Res. (IF 2.4) Pub Date : 2024-01-14 Caroline M. Tucker, Simone Collier, Geoffrey Legault, George E. Morgan, Derrick K. de Kerckhove
The range of survey methodologies for measuring daily activity, catch and harvest (i.e. creel surveys) of recreational anglers, is increasing with the advent of new technologies and improvements in remote sensing. Individual creel survey types frequently give different insights into a fishery due to their unique sources of methodological bias and coverage, which creates a problem for resource managers
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Science-informed recommendations to enhance the effectiveness of area-based fisheries management for fisheries sustainability and marine conservation: A global mini-review Fish. Res. (IF 2.4) Pub Date : 2024-01-15 Dimitra Petza, Stelios Katsanevakis
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Characteristics and species composition of a small-scale shark fishery in Puerto Rico: Jurisdictional issues enable legal landings of prohibited and endangered species Fish. Res. (IF 2.4) Pub Date : 2024-01-12 Raimundo Espinoza, Demian Chapman, Jack Morris, Sara N. Schoen, Valerie Hagan, Robert Hueter, Martin Soto, Rodolfo Abrams, Paola Sotomayor
Shark fishing is increasingly regulated in the Caribbean region. We present new information on the characteristics, landings, species composition, and size composition of the shark fishery of Puerto Rico, a U.S. Caribbean territory, and discuss current regulatory issues. Sharks are mainly landed in a small-scale targeted fishery operating in territory jurisdiction (coast to 17 km) that supplies local
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Offshore wind farm foundations as artificial reefs: The devil is in the detail Fish. Res. (IF 2.4) Pub Date : 2024-01-06 Karl M. Werner, Holger Haslob, Anna F. Reichel, Antje Gimpel, Vanessa Stelzenmüller
Climate change and global biodiversity loss call for clean energy production systems with minimised ecological impacts. Offshore wind energy production will become one of the main uses of global marine spaces within next decades. Offshore wind turbine foundations can function as artificial reefs but it is unknown if these capabilities apply to different foundation types. We collected field data on
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Evaluating immobilisation thresholds and suitability of conductive glove electrodes for largemouth bass electroanaesthesia Fish. Res. (IF 2.4) Pub Date : 2024-01-04 Connor H. Reid, Albana I. Berberi, Kara M. Scott, Sam J. Woods, Jonathan D. Midwood, Steven J. Cooke
Although electroanaesthesia (immobilising fish with weak currents and direct electrode contact for short-term handling and surgeries) is becoming more common, detailed data on electroanaesthesia immobilisation thresholds and potential morphological predictors of such thresholds remain sparse. We administered electroanaesthesia to largemouth bass (Micropterus nigricans) over a large range of body sizes
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Otolith morphometry and Fourier transform near-infrared (FT-NIR) spectroscopy as tools to discriminate archived otoliths of newly detected cryptic species, Etelis carbunculus and Etelis boweni Fish. Res. (IF 2.4) Pub Date : 2024-01-04 Kristen Dahl, Joseph O’Malley, Beverly Barnett, Bill Kline, Joseph Widdrington
Cryptic speciation was recently verified in Etelis carbunculus, an important component of federally managed bottomfish fisheries in the Pacific Territories of the United States. As a result, archived otolith collections used for fishery assessment are now contaminated with newly described E. boweni in areas where these species co-occur. We compared the efficacy of otolith morphometrics and Fourier
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Suitability of tropical river fishes for PIT tagging: Results for four Lower Mekong species Fish. Res. (IF 2.4) Pub Date : 2024-01-05 Thanasak Poomchaivej, Wayne Robinson, Nathan Ning, Lee J. Baumgartner, Xiaodi Huang
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Implications of big, old, fat, fecund, female fish (BOFFFFs) for the reproductive potential of a demersal teleost stock Fish. Res. (IF 2.4) Pub Date : 2024-01-05 Rubie T. Evans-Powell, Sybrand A. Hesp, Ainslie Denham, Lynnath E. Beckley
The ‘big old fat fecund female fish’ (BOFFFF) hypothesis suggests that larger, older female fish contribute disproportionately more to the reproductive potential of a stock than smaller, younger female fish. As fishing typically differentially removes larger, mature fish, this can negatively impact reproductive potential and impair the recovery of a depleted stock. In this study, the BOFFFF hypothesis
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Lessons to be learned by comparing integrated fisheries stock assessment models (SAMs) with integrated population models (IPMs) Fish. Res. (IF 2.4) Pub Date : 2024-01-05 Michael Schaub, Mark N. Maunder, Marc Kéry, James T. Thorson, Eiren K. Jacobson, André E. Punt
Integrated fisheries stock assessment models (SAMs) and integrated population models (IPMs) are used in biological and ecological systems to estimate abundance and demographic rates. The approaches are fundamentally very similar, but historically have been considered as separate endeavors, resulting in a loss of shared vision, practice and progress. We review the two approaches to identify similarities
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Flashing NetLights reduce bycatch in small-scale fisheries of the Eastern Mediterranean Fish. Res. (IF 2.4) Pub Date : 2024-01-05 Robin T.E. Snape, Damla Beton, Annette C. Broderick, Lucy C.M. Omeyer, Brendan J. Godley
Set nets are used by fisheries globally and are the mainstay gear of Mediterranean small-scale fishing vessels, which represent > 80% of the region’s fleet. Gear types such as bottom-set trammel nets and gillnets, thus have important socioeconomic significance. They are also used close to the coast, resulting in bycatch in foraging and inter-nesting areas utilised by Mediterranean sea turtles, with
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Different growth patterns reveal the potential origins of two Pacific saury (Cololabis saira) groups in the northwest Pacific Ocean Fish. Res. (IF 2.4) Pub Date : 2024-01-06 Wenjia Li, Chi Zhang, Yang Liu, Shigang Liu, Hao Tian, Chang Cao, Yoshiro Watanabe, Yongjun Tian
Identification of stock composition is essential for fish stock assessment and management. Previous studies have suggested that a mixed stock composition of Pacific saury Cololabis saira exists in the northwest Pacific Ocean, but the origins of the stock’s components are poorly understood. We analyze the otolith microstructure of Pacific saury collected in high-seas fishing grounds from June–November
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Toothed whale and shark depredation and bycatch in the longline fishery of French Polynesia Fish. Res. (IF 2.4) Pub Date : 2024-01-04 Juliette Aminian Biquet, Paul Tixier, Gaëtan Richard, Marie Soehnlen, Thibaut Thellier, Pamela Carzon, Eric Clua, Christophe Guinet
Marine megafauna feeding on fishery catches (depredation) or being incidentally caught on fishing gear (bycatch) have become important issues. Their socioeconomic and conservation stakes have been increasingly studied across the world fisheries. They remain understudied in the Pacific Ocean, where longline tuna fisheries reported such interactions. In this study, we provide the first assessment of
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Biomass and sustainable yields of Eurasian perch (Perca fluviatilis) in small boreal lakes with respect to lake properties and water quality Fish. Res. (IF 2.4) Pub Date : 2023-12-29 Anssi Vainikka, Aatu Turunen, Andrés Salgado-Ismodes, Eliisa Lotsari, Mikko Olin, Jukka Ruuhijärvi, Hannu Huuskonen, Céline Arzel, Petri Nummi, Kimmo K. Kahilainen
Understanding of factors that explain variation in potential fisheries yields is essential for the ecosystem-based management of lake fisheries. We used mark-recapture and Nordic survey net sampling to obtain estimates of Eurasian perch (Perca fluviatilis) abundance in 28 small (13.3 ha ± 11.4 ha, mean ± S.D.) boreal lakes. A size-structured population model was calibrated for each lake using further
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Novel computer vision tools applied to marine recreational fisheries spatial planning Fish. Res. (IF 2.4) Pub Date : 2024-01-02 Marco Signaroli, Arancha Lana, Josep Alós
Successful marine spatial planning relies on understanding patterns of human use, with accurate, detailed, and up-to-date information about the spatial distribution of fishing effort. In commercial vessels, tracking systems like the vessel monitoring system (VMS) or the automatic identification system (AIS) have helped to maintain and enhance the biodiversity of areas by generating large sources of
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Validity of winter sampling for estimation of salmonid abundance by electrofishing Fish. Res. (IF 2.4) Pub Date : 2023-12-30 Marius Kambestad, Bjart Are Hellen, Robert J. Lennox, Gaute Velle, Harald Sægrov
Electrofishing removal sampling is a common method for abundance estimation of juvenile salmonids in streams and is usually performed during autumn. European guidelines specify that sampling should be conducted at water temperatures ≥ 5 °C, but studies investigating the validity of sampling below this threshold are lacking. We conducted electrofishing experiments during autumn and winter in three Norwegian
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Bridging proxy reference points to sustainable yields to support data-limited fisheries Fish. Res. (IF 2.4) Pub Date : 2023-12-30 Yiwen Liu, Chongliang Zhang, Ji Yupeng, Binduo Xu, Ying Xue, Yiping Ren
Many of the world fisheries, especially small-scale fisheries, are in data-limited situations, for which proxy Biological Reference Points (BRPs) derived from per-recruit analyses are widely used to inform fisheries management. However, due to limited information on stock recruitment, per-recruit analyses usually assume constant recruitment and the influences of this key assumption have not been fully
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Behavioural response of benthic elasmobranchs to a neodymium magnet under controlled laboratory conditions Fish. Res. (IF 2.4) Pub Date : 2023-12-26 M. Grew, V. Raoult, T.F. Gaston
Global elasmobranch population decline can be largely attributed to anthropogenic impacts such as commercial fishing. As such, reducing bycatch of these animals is a key management objective in many fisheries. Magnetic deterrents such as permanent and rare-earth magnets can deter both pelagic and benthic elasmobranch species. However, the literature is inconsistent and shows varied levels of effectiveness