Article
Multidisciplinary Sciences
Brendan D. Shea, Austin J. Gallagher, Lindsay K. Bomgardner, Francesco Ferretti
Summary: The unsustainable mortality rates in shark sanctuaries highlight the need for additional stock assessments and bycatch reduction measures. The integration of big data workflows is a transformative tool in fisheries management, especially for data-poor species.
Article
Biodiversity Conservation
Gonzalo Mucientes, Marisa Vedor, David W. Sims, Nuno Queiroz
Summary: The global populations of oceanic pelagic sharks have decreased due to overfishing. Internationally protected shark species are still under threat from bycatch in longline fisheries, and the accuracy of population assessments for management is affected by under-reported catches. The extent of under-reporting, however, is not well understood.
BIOLOGICAL CONSERVATION
(2022)
Article
Multidisciplinary Sciences
Maria Jose Juan-Jorda, Hilario Murua, Haritz Arrizabalaga, Gorka Merino, Nathan Pacoureau, Nicholas K. Dulvy
Summary: This study uses iconic and well-studied fish species to calculate yearly changes in extinction risk and track progress towards global sustainability and biodiversity targets. The study finds that the biodiversity loss curve has shifted for certain fish species with effective fisheries management, but continues to worsen for sharks which are undermanaged.
Article
Multidisciplinary Sciences
Nathan Pacoureau, Cassandra L. Rigby, Peter M. Kyne, Richard B. Sherley, Henning Winker, John K. Carlson, Sonja V. Fordham, Rodrigo Barreto, Daniel Fernando, Malcolm P. Francis, Rima W. Jabado, Katelyn B. Herman, Kwang-Ming Liu, Andrea D. Marshall, Riley A. Pollom, Evgeny V. Romanov, Colin A. Simpfendorfer, Jamie S. Yin, Holly K. Kindsvater, Nicholas K. Dulvy
Summary: Overfishing is the primary cause of marine defaunation, with global abundance of oceanic sharks and rays declining by 71% since 1970. Three-quarters of the species in this important assemblage are now at risk of extinction. Urgent measures, such as strict fishing prohibitions and science-based catch limits, are needed to prevent further population collapse and promote species recovery.
Article
Environmental Sciences
Alejandro Ariza, Matthieu Lengaigne, Christophe Menkes, Anne Lebourges-Dhaussy, Aurore Receveur, Thomas Gorgues, Jeremie Habasque, Mariano Gutierrez, Olivier Maury, Arnaud Bertrand
Summary: The study found that global marine organisms will be seriously compromised by the end of the 21st century if the current greenhouse gas emission scenario continues. Low and mid latitudes are expected to lose animal biomass, while higher latitudes will have existing temperate fauna, consistent with results from ecosystem simulations.
NATURE CLIMATE CHANGE
(2022)
Article
Oceanography
Hollie Booth, George Powell, Irfan Yulianto, Benaya Simeon, Muhsin, Luky Adrianto, E. J. Milner-Gulland
Summary: This study explores the cost-effectiveness of management measures for mitigating the capture of threatened shark species in a small-scale longline shark fishery in Indonesia. The results suggest that fishery closures, depth limits, hook limits, and gear restrictions could have a positive conservation impact, but there are trade-offs between different species.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Environmental Studies
Daniel Solis, Kathryn Bisack, John Walden, Paul Richards, Juan Agar
Summary: This study estimates the economic cost of reducing sea turtle bycatch in the U.S. Western Atlantic Commercial Pelagic Longline Fishery, finding that on average, the cost of reducing the take of one sea turtle is $36,957. Shadow prices show significant temporal variability and vary by the targeting behavior of the fleets, which also affects the technical efficiency of fishing fleets.
Article
Biochemistry & Molecular Biology
Nicholas K. Dulvy, Nathan Pacoureau, Cassandra L. Rigby, Riley A. Pollom, Rima W. Jabado, David A. Ebert, Brittany Finucci, Caroline M. Pollock, Jessica Cheok, Danielle H. Derrick, Katelyn B. Herman, C. Samantha Sherman, Wade J. VanderWright, Julia M. Lawson, Rachel H. L. Walls, John K. Carlson, Patricia Charvet, Kinattumkara K. Bineesh, Daniel Fernando, Gina M. Ralph, Jay H. Matsushiba, Craig Hilton-Taylor, Sonja Fordham, Colin A. Simpfendorfer
Summary: The IUCN Red List assessment reveals that over one-third of chondrichthyans are threatened with extinction, primarily due to overfishing. Species in tropical and subtropical coastal waters are disproportionately threatened. Urgent measures such as science-based fishing limits, effective marine protected areas, and strategies to reduce fishing mortality are needed to prevent further extinctions and ensure food security and ecosystem functions.
Article
Fisheries
Eric Gilman, Milani Chaloupka, Asuka Ishizaki, Mathew Carnes, Hollyann Naholowaa, Colby Brady, Sarah Ellgen, Eric Kingma
Summary: The study found that using tori lines significantly reduced the likelihood of albatross attempting to contact or actually contacting baited hooks. While albatross captures were also less likely in sets with tori lines, there were not enough captures to draw strong conclusions. Offal discharge during setting was associated with higher seabird interactions, but further investigation is needed to determine the efficacy of this mitigation measure.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2021)
Article
Fisheries
Andre S. Afonso, Bruno Mourato, Humberto Hazin, Fabio H. V. Hazin
Summary: Research found that using light lures in epipelagic longline fisheries may increase catch rates of target species but also result in catching more non-target species. Among different colors, green attractors showed the highest catch rates of target species but also caught the most non-target species, indicating the need for further understanding of the effects of light lures and lunar illumination on fish behavior.
FISHERIES RESEARCH
(2021)
Article
Genetics & Heredity
Vasiliki Kousteni, Sofia Mazzoleni, Katerina Vasileiadou, Michail Rovatsos
Summary: This study obtained the complete mitochondrial genome sequences of various Chondrichthyes species through whole genome sequencing and reconstructed the phylogenetic relationships among 172 species using Maximum Likelihood and Bayesian Inference analyses. The results did not support the Hypnosqualea hypothesis, confirming the monophyly of sharks and rays. High statistical support values were obtained for the phylogenetic placement of all nine species sequenced in this study.
Article
Fisheries
Linda Albonetti, Giulia Maiello, Alessia Cariani, Paolo Carpentieri, Alice Ferrari, Alice Sbrana, Peter Shum, Lorenzo Talarico, Tommaso Russo, Stefano Mariani
Summary: Conservation and management of chondrichthyans are important due to their vulnerability to fishing activities, and using eDNA metabarcoding can accurately assess bycatch composition and detect rare species. Chondrichthyan diversity is influenced by environmental variables and fishing effort. As DNA metabarcoding becomes a staple tool for biodiversity monitoring, it can provide additional insights into threatened and elusive megafauna.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Review
Multidisciplinary Sciences
Maria Hayes
Summary: Globally, capture fisheries contribute significantly to protein supply and food security. Although the production of capture fisheries has not significantly increased in the past two decades, it still produced more protein than aquaculture in 2018. Aquaculture needs to increase its fish production to feed the growing global population. According to the Food and Agriculture Organization, capture fisheries contributed 51% of the global production of aquatic animals in 2020.
Article
Environmental Sciences
Ciaran A. Hyde, Giuseppe Notarbartolo di Sciara, Lynn Sorrentino, Charlotte Boyd, Brittany Finucci, Sarah L. Fowler, Peter M. Kyne, Guido Leurs, Colin A. Simpfendorfer, Michael J. Tetley, Freya Womersley, Rima W. Jabado
Summary: Area-based conservation is crucial for safeguarding declining biodiversity. The Important Shark and Ray Area (ISRA) approach provides standardized criteria for identifying and managing discrete portions of habitat important for shark, ray, and chimaera species. This approach aims to address the global biodiversity crisis faced by these species and contribute to their recovery.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
C. Samantha Sherman, Glenn Sant, Colin A. Simpfendorfer, Eric D. Digel, Patrick Zubick, Grant Johnson, Michael Usher, Nicholas K. Dulvy
Summary: Fisheries management is crucial for sustainable capture of target species and avoiding declines of incidentally captured species. However, there is currently no single management evaluation that can be applied to different fishery types at the scale of individual countries or Regional Fisheries Management Organizations (RFMOs). This study presents a management-risk (M-Risk) framework for assessing the risk of overfishing in sharks, rays, and chimaeras due to ineffective management. The framework can be used to identify species at the greatest risk and helps fisheries managers develop effective management policies.
FISH AND FISHERIES
(2022)
Article
Fisheries
Ray Hilborn, Vera N. Agostini, Milani Chaloupka, Serge M. Garcia, Leah R. Gerber, Eric Gilman, Quentin Hanich, Amber Himes-Cornell, Alistair J. Hobday, David Itano, Michel J. Kaiser, Hilario Murua, Daniel Ovando, Graham M. Pilling, Jake C. Rice, Rishi Sharma, Kurt M. Schaefer, Craig J. Severance, Nathan G. Taylor, Mark Fitchett
Summary: Current management of pelagic fisheries in open ocean areas relies largely on regulating fishing effort or target catch, with calls for increased area-based interventions such as expanding marine protected areas. While successful in maintaining target commercial species, area-based management shows less clarity in achieving ecological or social goals. Limitations in mobility of target and bycatch species hinder effectiveness, and adaptive approaches may be favored due to shifting distributions from climate change. Further research and management actions are prioritized to enhance the effectiveness of area-based management.
FISH AND FISHERIES
(2022)
Article
Fisheries
Adam J. Delargy, Gwladys Lambert, Michel J. Kaiser, Jan G. Hiddink
Summary: This study estimated catch efficiencies and scallop densities in a commercial scallop ground from a depletion experiment using five commercial dredge vessels. Results showed significant variations in catch efficiency and scallop density across a small area, highlighting the importance of understanding catch efficiency variations when scaling survey catches from multiple vessels.
FISHERIES RESEARCH
(2022)
Article
Multidisciplinary Sciences
C. Roland Pitcher, Jan G. Hiddink, Simon Jennings, Jeremy Collie, Ana M. Parma, Ricardo Amoroso, Tessa Mazor, Marija Sciberras, Robert A. McConnaughey, Adriaan D. Rijnsdorp, Michel J. Kaiser, Petri Suuronen, Ray Hilborn
Summary: Bottom trawling is widely used and impacts seabed habitats. However, the risks from trawling have not been quantified in most regions. This research synthesized evidence from 24 regions worldwide and developed a quantitative indicator of biotic status for sedimentary habitats. The findings highlight the need for more effective management to reduce exploitation and improve stock sustainability and seabed environmental status. The study also found that the area swept by trawling is related to the seabed status, allowing for preliminary predictions of regional status based on the total amount of trawling.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Fisheries
Eric Gilman, Martin Hall, Hollie Booth, Trisha Gupta, Milani Chaloupka, Hannah Fennell, Michel J. Kaiser, Divya Karnad, E. J. Milner-Gulland
Summary: This study developed a decision tool for integrated bycatch management that categorizes and ranks mitigation methods based on their effectiveness and generalizability. The tool helps stakeholders evaluate different management strategies and their feasibility in meeting bycatch and mortality objectives, considering fishery-specific factors and compliance monitoring. Ongoing adaptation allows for updates and protection for the most vulnerable populations.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2022)
Article
Oceanography
Adriana Ressurreicao, Frederico Cardigos, Eva Giacomello, Nuno Leite, Frederico Oliveira, Michel J. Kaiser, Jorge Goncalves, Ricardo Serrao Santos
Summary: Marine ecotourism plays a crucial role in the blue economy strategies of many nations and is a vital economic activity for coastal regions and islands. However, the lack of systematic evidence collation has hindered a comprehensive understanding of its socioeconomic importance.
OCEAN & COASTAL MANAGEMENT
(2022)
Editorial Material
Fisheries
Alyne Delaney, David G. Reid, Christopher Zimmermann, Marloes Kraan, Nathalie A. Steins, Michel J. Kaiser
Summary: By reflecting on the innovation process of the pulse trawl, we identified the lack of involvement from key stakeholders and the delayed implementation of stakeholder questionnaires and independent peer reviews as the main factors that undermined the wider acceptance of the pulse trawl.
REVIEWS IN FISHERIES SCIENCE & AQUACULTURE
(2023)
Editorial Material
Fisheries
Ilaria Coscia, Michel J. Kaiser
JOURNAL OF FISH BIOLOGY
(2022)
Letter
Multidisciplinary Sciences
Ray Hilborn, Michel J. Kaiser
Article
Marine & Freshwater Biology
Fikret Ondes, Vahit Alan, Michel J. Kaiser, Harun Guclusoy
Summary: This study provides information on the distribution and density of the invasive sea urchin Diadema setosum in the Aegean and Levantine coasts of Turkey. The results indicate that this species is more prevalent in the southern coast and reaches its highest densities in rocky habitats at depths of 0-5 m. Its population has increased dramatically in the past year, posing a threat to the Mediterranean due to potential grazing and bioerosion effects.
MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE
(2022)
Article
Environmental Sciences
Serge Michel Garcia, Jake Rice, Amber Himes-Cornell, Kim Jerome Friedman, Anthony Charles, Daniela Diz, Joseph Appiott, Michel J. Kaiser
Summary: This paper discusses key implementation issues related to other effective area-based conservation measures (OECMs) in marine capture fisheries, including governance and management issues. The governance issues include policy frameworks, industrial fisheries, legitimate authorities, long-term commitments, cross-sectoral coordination and planning, and contribution to the Post-2020 Global Biodiversity Framework of the CBD. The management issues focus on effectiveness in achieving expected outcomes, costs and benefits, spatial relations, and the role of OECMs in the Ecosystem Approach to Fisheries (EAF).
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Claire Louise Szostek, Jan Geert Hiddink, Marija Sciberras, Jennifer L. L. Shepperson, Stephen Thompson, Samantha Hormbrey, Alex Caveen, William Lart, Dale Rodmell, Michel J. J. Kaiser
Summary: This study presents a tool that utilizes published data to estimate the impact of globally used seabed-penetrating fishing gears on biological communities in different sediments. By calculating the seabed penetration of the gear and correlating it with the depletion of benthic fauna, the tool provides an estimation of the relative benthic status of the seabed. It can be used to objectively evaluate different fisheries management scenarios or interventions on seabed status, particularly in situations with limited data or resources.
JOURNAL OF INDUSTRIAL ECOLOGY
(2022)
Review
Fisheries
Dimitra Petza, Panagiotis Anastopoulos, Stefanos Kalogirou, Marta Coll, Serge Garcia, Michel Kaiser, Nikoletta Koukourouvli, Irene Lourdi, Jake Rice, Marija Sciberras, Stelios Katsanevakis
Summary: This Scoping Review examined the evidence base for the contribution of Area-based fisheries management measures (ABFMs) to fisheries sustainability and marine conservation. The review found that ABFMs have a positive impact on social, economic, and environmental aspects, although there are still knowledge gaps and challenges in their implementation. The study highlighted the need for an interdisciplinary and ecosystem-based approach in assessing ABFMs.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2023)
Article
Fisheries
R. Hilborn, R. Amoroso, J. Collie, J. G. Hiddink, M. J. Kaiser, T. Mazor, R. A. McConnaughey, A. M. Parma, C. R. Pitcher, M. Sciberras, P. Suuronen
Summary: Mobile bottom contact gear such as trawls is widely considered to have the highest environmental impact of commonly used fishing gears, with concern about impact on benthic communities, bycatch, and carbon footprint frequently highlighted as much higher than other forms of fishing. As a result, the use of such gears has been banned or severely restricted in some countries, and there are many proposals to implement such restrictions elsewhere.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Fisheries
M. A. Fenton, H. L. Fennell, M. J. Kaiser
Summary: This study analyzed publications in the Journal of Fish Biology and found that variables such as the number of keywords, abstract length, number of authors, and page length were associated with higher impact papers. Therefore, increasing the information content, the number of authors and keywords, and adopting some simple best-practice behaviors can improve the likelihood of a paper being cited.
JOURNAL OF FISH BIOLOGY
(2023)