Observations on the Depth Range of tagged Bluefin Tuna (Thunnus thynnus L.) based on Pressure Marks on the Lea Tag
1964
Hamre, Johannes
The present paper is an investigation on the depth range of tagged bluefin tuna based on pressure marks on the Lea tag (Figure 1). It was observed that the within season recaptures were without pressure marks, while the pressure marks occur on all the between season recoveries (Table 1). A test of the pressure resistance of the Lea tag showed that the bluefin tuna stock feeding off the Norwegian west coast during the summer does not go below 250 metres depth, whereas the stock seems to have a deeper distribution range during the winter.
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书目信息
出版者
ICES
其它主题
Vdp::agriculture and fishery disciplines: 900::fisheries science: 920::resource biology: 921; Tunfisk; Makrellstørje; Bluefin tuna; Vdp::agriculture and fishery disciplines: 900::fisheries science: 920::fisheries technology: 924
语言
英语
格式
application/pdf
类型
Working Paper
来源
3 s.
2024-11-28
Dublin Core
