Article
Fisheries
L. Gronbaek, M. Lindroos, G. Munro, P. Pintassilgo, B. Turris
Summary: This paper focuses on a successful case of avoiding unwanted catch of protected species off Canada's Pacific coast. By negotiating a habitat agreement with environmental organizations, the fishing industry has achieved remarkable success in avoiding unwanted catch. The paper argues that the success lies in the stable cooperative game played by the fishers.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Environmental Sciences
Pokkathappada Abdul Azeez, Prathibha Rohit, Mini Raman, Latha Shenoy, Ashok Kumar Jaiswar, Kunnamgalam Mohammed Koya, Suresh K. Mojjada, Divu Damodaran, Achamveetil Gopalakrishnan
Summary: This study investigated the impact of environmental factors on the catch rate and spatio-temporal distribution of fish along the northwest coast of India from 2017 to 2019. It found that chlorophyll-a concentration and euphotic depth were the most influential variables for ribbonfish distribution, while chlorophyll-a concentration and sea surface temperature influenced squid distribution, and sea surface temperature and sea surface height anomaly influenced cuttlefish distribution. The study is important for monitoring and managing fishery resources and formulating strategies for sustainable resource exploitation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Fisheries
Tannaz Alizadeh Ashrafi, Shaheen Syed, Arne Eide
Summary: The Norwegian bottom-trawl fleet is managed through individual vessel quotas and is generally engaged in codfish fisheries, facing substantial revenue variation and risk due to fluctuations in the marine environment. Despite efforts to minimize revenue risk, a risk-minimizing strategy leads to inefficient fishing quota and effort allocation, with potential economic losses outweighing benefits. Enhancing revenue is found to be more important for the trawlers than minimizing revenue risk.
FISHERIES RESEARCH
(2021)
Article
Biodiversity Conservation
Jason E. Jannot, Rhema Bjorkland, Kayleigh A. Somers, Toby Mitchell, Vanessa J. Tuttle, Jon McVeigh
Summary: This study examined the impact of a shift to an Individual Fishing Quota (IFQ) program on elasmobranch catch in the US West Coast Groundfish Fishery (WCGF). The results showed a reduction in bycatch of non-managed elasmobranch species under the IFQ program, but no significant impact on other species caught by the IFQ fleet. The co-occurrence of ecomorphotypes within fisheries suggests natural management units for ecosystem-based fishery management.
ENDANGERED SPECIES RESEARCH
(2021)
Article
Environmental Studies
Lauren Drakopulos, Melissa Poe
Summary: As ocean and climate change continue to impact fishing communities, a broader interpretation of adaptation is needed to understand fishers' responses. Adaptive strategies are not solely influenced by climate-driven ocean changes, but also shaped by social, economic, and environmental stressors. While management frameworks exist, concrete actions to mitigate social and economic stressors are lacking. A case study of fishing communities on the US West Coast reveals a wider range of adaptation strategies and potential institutional pathways to support and remove barriers to adaptation.
Article
Environmental Sciences
Qi Ding, Xiujuan Shan, Xianshi Jin, Harry Gorfine
Summary: This study introduces a new method for allocating catch shares based on a relative deprivation coefficient, and demonstrates its effectiveness in a case study of coastal provinces in China. Compared to traditional allocation methods, this new scheme shows superior performance in terms of fairness and reasonability.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Andrea Petetta, Bent Herrmann, Massimo Virgili, Daniel Li Veli, Jesse Brinkhof, Alessandro Lucchetti
Summary: The study found that design changes that work for the codend of bottom trawls do not necessarily work for other parts of the trawl, and may even have negative effects.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Laura E. Koehn, Laura K. Nelson, Jameal F. Samhouri, Karma C. Norman, Michael G. Jacox, Alison C. Cullen, Jerome Fiechter, Mercedes Pozo BuiI, Phillip S. Levin
Summary: Climate change is already impacting coastal communities. This study presents methods for assessing the vulnerability of U.S. West Coast fishing dependent communities to climate change. The research reveals that certain communities, particularly in Washington state, are at risk due to economic reliance on at-risk marine fisheries species.
Article
Food Science & Technology
Jesse Brinkhof, Bent Herrmann, Manu Sistiaga, Roger B. Larsen, Nadine Jacques, Svein Helge Gjosund
Summary: The study assesses the damage levels of cod captured with a new gear design in the Barents Sea bottom trawl fishery, and investigates the impact of the compulsory sorting grid and diamond mesh codend configuration on cod damage during capture. Results show that substituting the gear configuration can increase the probability of cod having no catch damage by 6.00% and significantly reduce the severity of all catch damage categories.
Article
Oceanography
Tyler Treakle, Joshua K. Abbott, Daniel S. Holland
Summary: Income diversification is important for individual fishers to achieve financial security due to high income fluctuations. While previous studies have focused on diversifying income within fisheries, the role of non-fishing occupations as a source of diversification has been overlooked. By analyzing data from 1,230 individual fishers on the US West Coast, we find that factors such as opportunity cost, monetary considerations, and within-fishery diversity significantly influence the likelihood of fishers earning non-fishing income. There is a tradeoff between within-fishery and non-fishery income diversification, but this tradeoff may vary for different non-fishing occupation types and times of the year.
OCEAN & COASTAL MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Roger B. Larsen, Bent Herrmann, Manu Sistiaga, Jesse Brinkhof, Kristine Cerbule, Eduardo Grimaldo, Mark J. M. Lomeli
Summary: The introduction of NordmOre grid in shrimp trawls has reduced the bycatch of non-target species. This study estimated and compared the size selectivity of NordmOre grids with different bar spacings and found that reducing bar spacing can significantly reduce fish bycatch while only marginally affecting the catch efficiency of Northern shrimp.
Article
Environmental Sciences
Olafur Arnar Ingolfsson, Michael Breen, Shale Rosen, Manu Sistiaga, Terje Jorgensen, Dagfinn Lilleng, Jostein Saltskar, Liz Kvalvik, Sigurd Hannaas, Hermann Pettersen
Summary: The study found that the catch quantity in blue whiting pelagic trawl fishery can be effectively controlled through simple modifications to the codend section of the fishing nets. Measures such as escape openings, fish lock designs, and choking units can be implemented to prevent excessive catches and fish escape. Further research is needed to optimize the designs and ensure reliable functioning of the equipment.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Felipe J. Quezada, Desiree Tommasi, Timothy H. Frawley, Barbara Muhling, Isaac Kaplan, Stephen Stohs
Summary: This study analyzed the impact of climate change on fishing vessels along the U.S. West Coast and found heterogeneity among fishers, highlighting the importance of considering their diverse characteristics in developing adaptation policies.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2023)
Article
Ecology
Khanh Quoc Nguyen, Minh Dinh Do, Huyen Trong Phan, Luong Trong Nguyen, Phuong Van To, Nghiep Ke Vu, Phu Duc Tran
Summary: In recent years, the fisheries resources in coastal fishing communities of Vietnam have decreased, mainly due to overfishing and the use of fishing gear with poor size selectivity. The study found that the length at 50% retention for all species caught was below the minimum landing sizes, except for the conger eel, highlighting the need for improved management strategies.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Engineering, Environmental
Marc Balcells, Marta Blanco, Ana I. Colmenero, Claudio Barria, Ricardo Santos-Bethencourt, David Nos, Cristina Lopez-Perez, Jordi Ribera-Altimir, Joan Sala-Coromina, Mariona Garriga-Panisello, Alba Rojas, Eve Galimany
Summary: This study aims to describe and quantify the marine litter caught by bottom trawlers along the Catalan coast and estimate the potential of the fleet to extract litter from the area. The study found that plastic was the most abundant material and urbanized areas had the highest densities of litter.