Spatiotemporal Hotspots of Juvenile Bigeye and Yellowfin Tuna Catches Under Drifting Fish‐Aggregating Devices in the Eastern Atlantic Ocean to Define Moratorium Strata DOI Open Access
S. Akia, Loreleï Guéry,

P.J. Pascual-Alayón

et al.

Fisheries Management and Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

ABSTRACT To reduce catches of juvenile bigeye and yellowfin tuna, while maintaining skipjack under drifting fish aggregating devices (dFAD), we analyzed spatiotemporal distributions dFAD by European purse seiners in the Eastern Atlantic Ocean during 1996–2019. detect hotspots catches, we: identified periods maximum abundance using a seasonal sub‐series diagram; normalized monthly FAD per unit effort; used emerging analysis on density. Two main strata were Guinean Gulf, which could be to establish moratoria fishing. These differed from existing ICCAT moratorium, spanned larger part African coast. Our findings also indicated that time‐area closures dFAD‐fishing lasting 3–4 months smaller areas more effective than current moratorium unwanted bycatch region. The two metrics developed for comparison provided clear measurable evidence demonstrated how strategic data‐informed moratoriums can lead substantial improvements conservation.

Language: Английский

Making do with less: Extending an acoustic-based time series of euphausiid abundance using an uncrewed surface vehicle with fewer frequencies DOI Creative Commons
Mike Levine, Alex De Robertis

Fisheries Research, Journal Year: 2025, Volume and Issue: 282, P. 107270 - 107270

Published: Jan. 21, 2025

Language: Английский

Citations

0
Applications of species distribution modeling and future needs to support marine resource management DOI Creative Commons
Melissa A. Karp, Megan A. Cimino, J. Kevin Craig

et al.

ICES Journal of Marine Science, Journal Year: 2025, Volume and Issue: 82(3)

Published: Feb. 25, 2025

Abstract Fisheries science agencies are responsible for informing fisheries management and ocean planning worldwide, often requiring scientific analysis actions across multiple spatial scales. For example, catch limits typically defined annually over regional scales, fishery bycatch rules at fine scales on daily to annual time aquaculture energy lease areas decades subregional permitting intermediate Similarly, these activities require synthesizing monitoring data mechanistic knowledge operating different resolutions domains. These needs drive a growing role models that predict animal presence or densities including daily, seasonal, interannual variation, called species distribution/density (SDMs). SDMs can inform many needs; however, their development usage haphazard. In this paper we discuss various ways have been used in stock, habitat, protected species, ecosystem as well marine planning, survey optimization, an interface with climate models. We conclude discussion of future directions, focusing information current development, highlight avenues furthering the community practice around SDM use.

Language: Английский

Citations

0
Evaluation of adaptability of stratified survey scheme to ichthyoplankton sampling in an integrated fishery-independent survey DOI
Yudao Ma, Yiping Ren, Chongliang Zhang

et al.

Journal of Oceanology and Limnology, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Language: Английский

Citations

0
Fisheries independent surveys in a new era of offshore wind energy development DOI Creative Commons
Andy Lipsky, Ângela Silva,

Fiona Gilmour

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: May 10, 2024

Abstract Fisheries independent surveys require rethinking because of increasing spatial restrictions and interactions with offshore wind energy development (OWD). Fisheries, protected species, environmental data collections have been conducted by scientific institutions to meet societal demands for food security, conservation, other marine uses. These provide information on key resource measures, essential fisheries, ecosystem management. With the increase in pace magnitude OWD's industrialization waters, disruptions these long-term time series can be expected. will impact ability support current future management goals objectives. This paper presents an expert survey perceptions OWD common designs methodologies Europe U.S., along a selected sample 75 fisheries U.S. providing initial assessment description potential impacts from OWD. About 72% sampled record operational, planned or Four case studies demonstrate efforts address within European regions that operational where has just begun. Finally, we make recommendations research important continue meaningful scientific-based advice.

Language: Английский

Citations

3
Spatiotemporal Hotspots of Juvenile Bigeye and Yellowfin Tuna Catches Under Drifting Fish‐Aggregating Devices in the Eastern Atlantic Ocean to Define Moratorium Strata DOI Open Access
S. Akia, Loreleï Guéry,

P.J. Pascual-Alayón

et al.

Fisheries Management and Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

ABSTRACT To reduce catches of juvenile bigeye and yellowfin tuna, while maintaining skipjack under drifting fish aggregating devices (dFAD), we analyzed spatiotemporal distributions dFAD by European purse seiners in the Eastern Atlantic Ocean during 1996–2019. detect hotspots catches, we: identified periods maximum abundance using a seasonal sub‐series diagram; normalized monthly FAD per unit effort; used emerging analysis on density. Two main strata were Guinean Gulf, which could be to establish moratoria fishing. These differed from existing ICCAT moratorium, spanned larger part African coast. Our findings also indicated that time‐area closures dFAD‐fishing lasting 3–4 months smaller areas more effective than current moratorium unwanted bycatch region. The two metrics developed for comparison provided clear measurable evidence demonstrated how strategic data‐informed moratoriums can lead substantial improvements conservation.

Language: Английский

Citations

0