Article
Fisheries
Donna Dimarchopoulou, Elle Wibisono, Steven Saul, Paul Carvalho, Angga Nugraha, Peter J. Mous, Austin T. Humphries
Summary: The deep-slope demersal fisheries in Indonesia are economically valuable but face uncertainty in terms of sustainability due to a lack of data and assessment. A framework using standardized CPUE and SPR indicators was developed to assess the state of eight primary species-fishing gear complexes. Results showed that most stocks were unhealthy, indicating suboptimal or unsustainable fishing rates.
FISHERIES RESEARCH
(2023)
Article
Fisheries
Diego V. Pereira, Marcos de A. Mereles, Octavio F. de Matos, Giulia Cristina dos S. Lopes, Katrine G. da Conceicao, Carlos Edwar de C. Freitas
Summary: This study applied the PSA method to assess the vulnerability to overfishing of 37 commercially exploited fish species in seven fishery landing points in the Amazon Basin. The results showed that Brachyplatystoma rousseauxii, Brachyplatystoma filamentosum, Pinirampus pirinampu, and Zungaro zungaro were the most vulnerable species. The PSA method was considered as an efficient alternative for an initial assessment of the risk of overfishing.
FISHERIES RESEARCH
(2023)
Article
Environmental Sciences
Merrill B. Rudd, Jason M. Cope, Chantel R. Wetzel, James Hastie
Summary: Integrated stock assessments are useful tools for data-moderate fisheries, including all available information and being able to be updated over time. Correctly specified catch and length compositions (SS-CL) can estimate unbiased key population quantities, highlighting the importance of length data in integrated models.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Ualerson Iran Peixoto, Morgan Casal-Ribeiro, Wendell M. Medeiros-Leal, Ana Novoa-Pabon, Mario Pinho, Regis Santos
Summary: This study assesses the vulnerability status of fishing stocks in the Azores using conventional scientific knowledge and fishers' knowledge data. The findings suggest that integrating fishers' knowledge can provide good assessment outcomes in the absence of data and improve management advice.
Article
Fisheries
Ray Hilborn, Daniel J. Hively, Nicole Baker Loke, Carryn L. de Moor, Hiroyuki Kurota, Johannes N. Kathena, Pamela M. Mace, Coilin Minto, Ana M. Parma, Juan-Carlos Quiroz, Michael C. Melnychuk
Summary: The global groundfish stocks are generally increasing in abundance and currently above the maximum sustainable yield level. Regional differences exist, with the Northwest Atlantic and Pacific coast of South America having the most severe stock depletions. There is potential to increase global groundfish catch by adjusting fishing pressure, but other factors need to be considered for full exploitation of these stocks.
FISH AND FISHERIES
(2021)
Article
Marine & Freshwater Biology
Maria Grazia Pennino, Marta Cousido-Rocha, Catarina Maia, Alberto Rocha, Ivone Figueiredo, Alexandre Alonso-Fernandez, Cristina Silva, Francisco Izquierdo, Jose Castro, Josefina Teruel Gomez, Jose Rodriguez, Santiago Cervino
Summary: This study evaluated the status of the common sole in the Iberian Coast region using three different length-based methods. The results indicate that this stock is being exploited at the maximum sustainable yield level, with good conservation of immature individuals but a relatively low proportion of large mature individuals.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Fisheries
Richard E. Grewelle, Elizabeth Mansfield, Fiorenza Micheli, Giulio De Leo
Summary: The PSA method is widely used for rapidly assessing species risk in fisheries, but current threshold designations may underestimate risk. A new statistically robust method has been proposed to better evaluate species risk.
FISH AND FISHERIES
(2021)
Article
Environmental Sciences
Owen M. Exeter, Thaung Htut, Christopher R. Kerry, Maung Maung Kyi, Me'ira Mizrahi, Rachel A. Turner, Matthew J. Witt, Anthony W. J. Bicknell
Summary: Coastal fisheries provide livelihoods for millions globally, but are often poorly documented, particularly in developing regions. Data scarcity hinders the effectiveness of spatial tools for fisheries management. Therefore, innovative and cost-effective approaches are needed to monitor activities and inform sustainable management of fisheries and marine ecosystems.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Kui Zhang, Jun Zhang, Peng Zhang, Li Su, Xiaofan Hong, Yongsong Qiu, Zuozhi Chen
Summary: This study assessed the status of skipjack tuna stock in the South China Sea using two data-poor methods. The results showed that the stock may be heavily overfished and recommended reducing fishing effort and increasing catchable size.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Studies
Clive J. Fox
Summary: The study revealed that some inshore crab and lobster stocks in the UK EEZ are facing the issue of over-exploitation, urging fisheries managers to address it urgently. Policymakers should not assume that slightly exceeding the trigger for maximum sustainable biomass means the stocks have been rebuilt. To enhance monitoring, regular assessments, proxy measures, and novel techniques are urgently needed.
Article
Ecology
Richard E. Grewelle, Elizabeth Mansfield, Fiorenza Micheli, Giulio De Leo
Summary: This article discusses the widespread and increasing stressors faced by species and ecosystems, and the lack of data for detailed, quantitative risk assessment. To address this issue, researchers have developed EcoRAMS, a tool that provides statistically robust ecological risk assessments of multiple stressors in data-poor contexts.
ECOLOGICAL INFORMATICS
(2023)
Article
Fisheries
Paul Bouch, Coilin Minto, Dave G. Reid
Summary: A study comparing CMSY and SPiCT methods with ICES age-based assessments for 17 data-rich fish stocks found that both methods often differed considerably from the ICES assessment. CMSY tended to overestimate relative fishing mortality and underestimate relative stock biomass, while SPiCT showed the opposite tendency.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Fisheries
L. Kerr, M. Barajas, J. Wiedenmann
Summary: Failure to consider the impacts of climate and ecosystem change on fish stocks can introduce uncertainty to stock assessments, making sustainable fisheries management challenging. A study found that there is coherence in retrospective patterns across different fish stocks, suggesting common regional drivers such as climate and ecosystem changes.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Fisheries
Vicenc Molto, Ignacio A. Catalan, Andres Ospina-Alvarez, Pilar Hernandez, Ruben H. Roa-Ureta
Summary: Generalized depletion models are useful for managing data-limited fisheries and have been applied to the Mediterranean common dolphinfish fishery. A multiannual five-fleet model was developed using monthly data from 2008 to 2019. The results show high natural mortality rate and intra-season fluctuations in biomass, but indicate that the stock is fished within sustainable limits.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Fisheries
Alex Souza Lira, Francois Le Loc'h, Humber Agrelli Andrade, Flavia Lucena-Fredou
Summary: The study found that non-target species are more vulnerable than target species. For the small-scale shrimp fishery in northeast Brazil, certain species with long lifespans, low spawning, high capture rates of juveniles, and high overlap of feeding and breeding grounds with fishing areas are more susceptible to risks. Most species (76%) maintained the same risk category regardless of the evaluation method used. Overall, the target species are not the main ones threatened, but elasmobranchs, catfishes, and Scianidae should be prioritized for assessment and data collection as bycatch.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Fisheries
Michele Casini, Huidong Tian, Martin Hansson, Wlodzimierz Grygiel, Guntars Strods, Romas Statkus, Elor Sepp, Tomas Groehsler, Alessandro Orio, Niklas Larson
ICES JOURNAL OF MARINE SCIENCE
(2019)
Article
Ecology
Alessandro Orio, Ulf Bergstroem, Ann-Britt Florin, Andreas Lehmann, Ivo Sics, Michele Casini
JOURNAL OF BIOGEOGRAPHY
(2019)
Article
Ecology
Susa Niiranen, Alessandro Orio, Valerio Bartolino, Ulf Bergstrom, Meri Kallasvuo, Stefan Neuenfeldt, Didzis Ustups, Michele Casini
MARINE ECOLOGY PROGRESS SERIES
(2019)
Article
Fisheries
Stefan Neuenfeldt, Valerio Bartolino, Alessandro Orio, Ken H. Andersen, Niels G. Andersen, Susa Niiranen, Ulf Bergstrom, Didzis Ustups, Nataliia Kulatska, Michele Casini
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Fisheries
Monica Mion, Annelie Hilvarsson, Karin Hussy, Uwe Krumme, Maria Kruger-Johnsen, Kate McQueen, Esha Mohamed, Roman Motyka, Alessandro Orio, Maris Plikshs, Krzysztof Radtke, Michele Casini
FISHERIES RESEARCH
(2020)
Correction
Fisheries
Stefan Neuenfeldt, Valerio Bartolino, Alessandro Orio, Ken H. Andersen, Niels G. Andersen, Susa Niiranen, Ulf Bergstrom, Didzis Ustups, Nataliia Kulatska, Michele Casini
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Marine & Freshwater Biology
Alessandro Orio, Ulf Bergstrom, Ann-Britt Florin, Ivo Sics, Michele Casini
Editorial Material
Fisheries
Stefan Neuenfeldt, Valerio Bartolino, Alessandro Orio, Ken H. Andersen, Niels G. Andersen, Susa Niiranen, Ulf Bergstrom, Didzis Ustups, Nataliia Kulatska, Michele Casini
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Ecology
Kevin Haase, Alessandro Orio, Joanna Pawlak, Marzenna Pachur, Michele Casini
MARINE ECOLOGY PROGRESS SERIES
(2020)
Article
Engineering, Environmental
Alessandro Orio, Yvette Heimbrand, Karin Limburg
Summary: The intensified expansion of the Baltic Sea's hypoxic zone has been proposed as one reason for the current poor status of cod in the Baltic Sea, with repercussions throughout the food web and on ecosystem services. The study found that the extent of minimally suitable areas for cod is the most important predictor of decreased cod maximum length, and simulations show the potential for Baltic cod to increase its maximum length if hypoxic areal extent is reduced. The findings highlight the importance of reducing hypoxic areas in order to maintain ecosystem services affected by the decrease of cod maximum length.
Article
Biodiversity Conservation
Stuart Kininmonth, Thorsten Blenckner, Susa Niiranen, James Watson, Alessandro Orio, Michele Casini, Stefan Neuenfeldt, Valerio Bartolino, Martin Hansson
Summary: Fisheries management has traditionally focused on population modeling without considering environmental and trophic changes. This study introduces a probabilistic model that incorporates key fish populations and various factors to improve the predictability of fish dynamics.
Article
Fisheries
Szymon Smolinski, Daniel Ottmann, Okko Outinen, Amanda Schadeberg, Valentina Melli, Lara Funk, Come Denechaud, Alina Wieczorek, Alessandro Orio, Robert Mussgnug, Rasa Morkune, Emilie Hernes Vereide, Maja Zdulska, Genevieve Phillips, Fedor Lishchenko, Greta Srebaliene
Summary: Scientific careers and publishing have undergone significant changes in recent decades, leading to an increasingly competitive environment for early career scientists (ECS). In the marine and fisheries sciences field, the contribution of ECS to publications has been growing, but the proportion of ECS authors within one publication has declined over time. Furthermore, articles with ECS authors tend to receive fewer citations, and the proportion of ECS authors on an article negatively affects the number of citations. The study emphasizes the need for systematic support to ECS in order to achieve more balanced opportunities for funding and publishing between ECS and senior scientists.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Ecology
Maria Ovegard, Peter Ljungberg, Alessandro Orio, Kristin Ohman, Emilia Benavente Norrman, Sven-Gunnar Lunneryd
Summary: The Eastern Baltic stock of Atlantic cod has declined in numbers and condition due to an increase in the prevalence and intensity of the nematode Contracaecum osculatum. Higher densities of nematodes per gram of liver decrease cod's growth potential, preventing them from growing even when provided with sufficient food.
INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE
(2022)
Article
Fisheries
Christopher A. Griffiths, Henning Winker, Valerio Bartolino, Hakan Wennhage, Alessandro Orio, Massimiliano Cardinale
Summary: Larger and older fish are crucial for the replenishment of fish stocks, but their importance is often neglected in fisheries advice. A new age-based indicator (ABI(MSY)) is introduced to monitor age structure in relation to equilibrium conditions, providing complementary information to conventional reference points for biomass and fishing mortality. This indicator is responsive to overfishing and can be integrated into current fisheries management frameworks.
FISH AND FISHERIES
(2023)
Article
Ecology
Michele Casini, Martin Hansson, Alessandro Orio, Karin Limburg
Summary: The expansion of hypoxic areas and the decrease in condition of the Eastern Baltic cod in the Baltic Sea over the past 20 years are mainly attributed to the increasing spatial overlap between the cod population and low-oxygenated waters. Since the mid-1990s, individuals with low condition were exposed to low-oxygen waters, leading to a decline in cod body condition. Further studies are needed to understand the movement of the cod population to deeper waters in autumn and the overlap with low-oxygen waters in other seasons to assess the potential effects on cod biology throughout the year.
Article
Fisheries
Miguel Petrere Jr, Davi Butturi-Gomes
Summary: This short communication aims to raise awareness about the misuse of confidence intervals in Ecology and Fisheries statistical models that ignore the lack of independence.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Peter-John F. Hulson, Benjamin C. Williams
Summary: This study evaluates the impact of considering ageing error and growth variability on the determination of input sample size (ISS) in statistical catch-at-age assessment models. The results show that including these sources of uncertainty decreases the ISS determined through bootstrap methods. This indicates that there is more variability in age composition and conditional age-at-length data than previously accounted for. Including these sources of uncertainty improves the estimation of ISS and subsequently improves the quality of stock assessment models.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jason M. Cope
Summary: Fishery resource assessment is a complex and challenging task, but with the use of different analysis methods and tools, effective management guidance can be provided even with limited data and resources.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Regina L. Cunha, Joana I. Robalo, Sara M. Francisco, Ines Farias, Rita Castilho, Ivone Figueiredo
Summary: Recent advances in genomics have greatly contributed to the assessment of fish stocks by providing precise identification of genetic boundaries. This study used a genotyping-by-sequencing approach to reveal the existence of an additional genetic cluster of blackspot seabream in the northeast Atlantic, which was not previously identified. Factors such as ocean circulation patterns and local upwelling may play a role in the genetic differentiation observed in this study.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Huihua Lee, Mark N. Maunder, Kevin R. Piner
Summary: Estimating growth is important for fish population assessment. Integrated assessment models and the influence of misfitting size composition data have renewed interest in how growth is modeled. The available data types control how the length-at-age relationship is estimated. Estimating length-at-age is complex due to multiple sources of biological variability and difficulties in obtaining representative samples.
FISHERIES RESEARCH
(2024)
Article
Fisheries
A. Ladino, I. Perez-Arjona, V. Espinosa, M. Chillaron, V. Vidal, L. M. Godinho, G. Moreno, G. Boyra
Summary: This study examines the acoustic properties of skipjack tuna and Atlantic mackerel, both bladderless pelagic fish species, and explains the significant differences observed. The research shows that the differences in material properties of their tissues predict a more than 10 dB greater reduced target strength in skipjack compared to mackerel at certain frequencies.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Nelly Pena-Cutimbo, Cristel Cordero-Maldonado, Clara Ortiz-Alvarez, Joanna Alfaro-Shigueto, Jeffrey C. Mangel
Summary: Bycatch is a global problem for marine megafauna. This study assessed the bycatch interactions of the Peruvian artisanal purse-seine fishery in 2019 and found that all taxa groups were affected by bycatch. Dusky dolphins, guanay cormorants, and eagle rays were the most frequently reported bycatch species.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jen-Ming Liu, Po-Yuk So
Summary: The set-net fishery is an environmentally friendly fishery posing little risk to the marine ecosystem. This study identified ocean temperature, sea surface factors, and climatic factors as the main factors affecting the installation of set-nets.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Josie L. Palmer, Carina Armstrong, Hasan D. Akbora, Damla Beton, Cigdem Caglar, Brendan J. Godley, Kristian Metcalfe, Meryem Ozkan, Robin T. E. Snape, Annette C. Broderick
Summary: Small-scale fisheries are vital for global food security and cultural heritage, but the lack of information hampers effective management and mitigation of ecological impacts. This study provides the first comprehensive overview of the small-scale fishery fleet in Northern Cyprus. The fleet operates mainly over the continental shelf, using static and demersal gear types, and catches a diverse range of species, some of which are threatened. The findings can be used to improve fisheries management and conservation measures.
FISHERIES RESEARCH
(2024)