Article
Ecology
Alyssa J. Clevenstine, Christopher G. Lowe
Summary: The study used acoustic telemetry to quantify the spatiotemporal rhythmicity of giant sea bass aggregations at Santa Catalina Island, showing potential spawning behavior in specific locations during the summer months and partial seasonal migration of some individuals.
ENVIRONMENTAL BIOLOGY OF FISHES
(2021)
Review
Environmental Sciences
Even Moland, Albert Fernandez-Chacon, Tonje Knutsen Sordalen, David Villegas-Rios, Susanna Huneide Thorbjornsen, Kim Tallaksen Halvorsen, Mats Huserbraten, Esben Moland Olsen, Portia Joy Nillos Kleiven, Alf Ring Kleiven, Halvor Knutsen, Sigurd Heiberg Espeland, Carla Freitas, Jan Atle Knutsen
Summary: This article reviews a suite of studies conducted in a network of coastal Marine Protected Areas in Skagerrak, Southeast Norway, focusing on the effects of protection on marine populations such as European lobster, coastal cod, and labrids. The studies found that MPAs had positive impacts on population density, survival, body size, phenotypic diversity, and also altered selection pressure on morphological and behavioral traits. The research emphasized the importance of long-term monitoring, collaboration with fishers and managers, and the inclusion of citizen science in understanding the effects of protection on marine species.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Ecology
Jessica B. Freeman, Brice X. Semmens, Andrew R. Thompson
Summary: This study assessed the impacts of large and long-term marine protected areas (MPAs) and environmental factors on rockfish diversity and assemblage structure. The results showed that the establishment of MPAs and favorable environmental conditions contributed to the recovery of rockfish stocks and an increase in rockfish larval diversity.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Fisheries
Steven M. Sammons
Summary: The study found that spotted sand bass in the northern Gulf of California have faster growth and higher natural mortality compared to those in the Pacific Ocean, making them less vulnerable to fishing pressure. However, overfishing and low SPR values were predicted at low natural mortality and high exploitation rates. Results suggest that a commercial fishery for this species in the northern Gulf of California could help address conservation issues.
JOURNAL OF APPLIED ICHTHYOLOGY
(2021)
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)