Fishing and temperature effects on the size structure of exploited fish stocks

Abstract Size structure of fish stock plays an important role in maintaining sustainability of the population. Size distribution of an exploited stock is predicted to shift toward small individuals caused by size-selective fishing and/or warming; however, their relative contribution remains relative...

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Autores principales:	Chen-Yi Tu, Kuan-Ting Chen, Chih-hao Hsieh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7bac483687be4fea917191d63a4df74a
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spelling	oai:doaj.org-article:7bac483687be4fea917191d63a4df74a2021-12-02T12:32:47ZFishing and temperature effects on the size structure of exploited fish stocks10.1038/s41598-018-25403-x2045-2322https://doaj.org/article/7bac483687be4fea917191d63a4df74a2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25403-xhttps://doaj.org/toc/2045-2322Abstract Size structure of fish stock plays an important role in maintaining sustainability of the population. Size distribution of an exploited stock is predicted to shift toward small individuals caused by size-selective fishing and/or warming; however, their relative contribution remains relatively unexplored. In addition, existing analyses on size structure have focused on univariate size-based indicators (SBIs), such as mean length, evenness of size classes, or the upper 95-percentile of the length frequency distribution; these approaches may not capture full information of size structure. To bridge the gap, we used the variation partitioning approach to examine how the size structure (composition of size classes) responded to fishing, warming and the interaction. We analyzed 28 exploited stocks in the West US, Alaska and North Sea. Our result shows fishing has the most prominent effect on the size structure of the exploited stocks. In addition, the fish stocks experienced higher variability in fishing is more responsive to the temperature effect in their size structure, suggesting that fishing may elevate the sensitivity of exploited stocks in responding to environmental effects. The variation partitioning approach provides complementary information to univariate SBIs in analyzing size structure.Chen-Yi TuKuan-Ting ChenChih-hao HsiehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chen-Yi Tu Kuan-Ting Chen Chih-hao Hsieh Fishing and temperature effects on the size structure of exploited fish stocks
description	Abstract Size structure of fish stock plays an important role in maintaining sustainability of the population. Size distribution of an exploited stock is predicted to shift toward small individuals caused by size-selective fishing and/or warming; however, their relative contribution remains relatively unexplored. In addition, existing analyses on size structure have focused on univariate size-based indicators (SBIs), such as mean length, evenness of size classes, or the upper 95-percentile of the length frequency distribution; these approaches may not capture full information of size structure. To bridge the gap, we used the variation partitioning approach to examine how the size structure (composition of size classes) responded to fishing, warming and the interaction. We analyzed 28 exploited stocks in the West US, Alaska and North Sea. Our result shows fishing has the most prominent effect on the size structure of the exploited stocks. In addition, the fish stocks experienced higher variability in fishing is more responsive to the temperature effect in their size structure, suggesting that fishing may elevate the sensitivity of exploited stocks in responding to environmental effects. The variation partitioning approach provides complementary information to univariate SBIs in analyzing size structure.
format	article
author	Chen-Yi Tu Kuan-Ting Chen Chih-hao Hsieh
author_facet	Chen-Yi Tu Kuan-Ting Chen Chih-hao Hsieh
author_sort	Chen-Yi Tu
title	Fishing and temperature effects on the size structure of exploited fish stocks
title_short	Fishing and temperature effects on the size structure of exploited fish stocks
title_full	Fishing and temperature effects on the size structure of exploited fish stocks
title_fullStr	Fishing and temperature effects on the size structure of exploited fish stocks
title_full_unstemmed	Fishing and temperature effects on the size structure of exploited fish stocks
title_sort	fishing and temperature effects on the size structure of exploited fish stocks
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/7bac483687be4fea917191d63a4df74a
work_keys_str_mv	AT chenyitu fishingandtemperatureeffectsonthesizestructureofexploitedfishstocks AT kuantingchen fishingandtemperatureeffectsonthesizestructureofexploitedfishstocks AT chihhaohsieh fishingandtemperatureeffectsonthesizestructureofexploitedfishstocks
_version_	1718393988419944448

Fishing and temperature effects on the size structure of exploited fish stocks

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