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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0127510
论文题名:	A Novel Tool to Mitigate By-Catch Mortality of Baltic Seals in Coastal Fyke Net Fishery
作者:	Sari M. Oksanen; Markus P. Ahola; Jyrki Oikarinen; Mervi Kunnasranta
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-5-18
卷:	10, 期:5
语种:	英语
英文关键词:	Seals ; Fisheries ; Death rates ; Baltic Sea ; Fisheries science ; Population growth ; Sustainable agriculture ; Climate change
英文摘要:	Developing methods to reduce the incidental catch of non-target species is important, as by-catch mortality poses threats especially to large aquatic predators. We examined the effectiveness of a novel device, a “seal sock”, in mitigating the by-catch mortality of seals in coastal fyke net fisheries in the Baltic Sea. The seal sock developed and tested in this study was a cylindrical net attached to the fyke net, allowing the seals access to the surface to breathe while trapped inside fishing gear. The number of dead and live seals caught in fyke nets without a seal sock (years 2008–2010) and with a sock (years 2011–2013) was recorded. The seals caught in fyke nets were mainly juveniles. Of ringed seals (Phoca hispida botnica) both sexes were equally represented, while of grey seals (Halichoerus grypus) the ratio was biased (71%) towards males. All the by-caught seals were dead in the fyke nets without a seal sock, whereas 70% of ringed seals and 11% of grey seals survived when the seal sock was used. The seal sock proved to be effective in reducing the by-catch mortality of ringed seals, but did not perform as well with grey seals.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0127510&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/20570
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0127510.PDF（1062KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Biology, University of Eastern Finland, Joensuu, Finland;Natural Resources Institute Finland, Turku, Finland;Perämeren Kalatalousyhteisöjen Liitto ry, Oulu, Finland;Department of Biology, University of Eastern Finland, Joensuu, Finland

Recommended Citation:

Sari M. Oksanen,Markus P. Ahola,Jyrki Oikarinen,et al. A Novel Tool to Mitigate By-Catch Mortality of Baltic Seals in Coastal Fyke Net Fishery[J]. PLOS ONE,2015-01-01,10(5)

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