Unreported discards of internationally protected pelagic sharks in a global fishing hotspot are potentially large
Unreported discards of internationally protected pelagic sharks in a global fishing hotspot are potentially large
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全球渔业热点地区未报告的受国际保护的远洋鲨鱼丢弃量可能很大
DOI:
10.1016/j.biocon.2022.109534
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发表时间:
2022
影响因子:
5.9
通讯作者:
Mucientes G
中科院分区:
文献类型:
--
作者:
Mucientes G
Global abundances of oceanic pelagic sharks have declined due to overfishing. Internationally protected shark species remain at risk due to indiscriminate bycatch in longline fisheries with under-reported catches affecting reliability of population assessments for management. However, the scale of under-reporting remains poorly understood. Here we use detailed shark species catch data in a global fishing hotspot to show that the discards of three globally or regionally ‘Endangered’ or ‘Critically Endangered’ species (bigeye thresherAlopiassuperciliosus; oceanic whitetipCarcharhinus longimanus; smooth hammerheadSphyrna zygaena) are potentially under-reported on a large scale: the total discards made by a single observed vessel in April–June 2018 in the eastern tropical Atlantic exceeded by 1.3–11.0 times the discards reported officially for these species Atlantic-wide for all of 2018. Scaling up observed catches (discards) of a single vessel to potential discards made by a single nation's fleet in the region, we estimate a mean annual total of 1526.2 t (±1 S.D. range: 415.3–2637.0 t), which exceeds by 89.2 times (±1 S.D. range: 24.3–154.2 times) the official reported discards for these three species. Without reducing bycatch mortality, which at present appears obscured by substantial under-reporting, Atlantic populations remain at serious risk.
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影响因子:
2.4
作者:
W. Walsh;P. Kleiber;M. Mccracken
通讯作者:
M. Mccracken
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
W. Walsh;R. Ito;Kurt E. Kawamoto;M. Mccracken
通讯作者:
M. Mccracken
影响因子:
2
作者:
W. Macbeth;P. Butcher;D. Collins;S. McGrath;S. Provost;Alison C. Bowling;P. T. Geraghty;V. Peddemors
通讯作者:
V. Peddemors
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
B. García;J. Mejuto;A. Ramos
通讯作者:
A. Ramos
影响因子:
64.8
作者:
Queiroz, Nuno;Humphries, Nicolas E.;Sims, David W.
通讯作者:
Sims, David W.