Long-term changes in ray populations in the North Sea | Zendy

Paddy Walker | Zendy

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Long-term changes in ray populations in the North Sea

Author(s) -

Paddy Walker

Publication year - 1996

Publication title -

ices journal of marine science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 117

eISSN - 1095-9289

pISSN - 1054-3139

DOI - 10.1006/jmsc.1996.0135

Subject(s) - geography , oceanography , abundance (ecology) , fishery , term (time) , north sea , physical geography , geology , biology , physics , quantum mechanics

Three data sets have been analysed: landing statistics (1903-1993), International Bottom Trawl Surveys (1979-1993), and survey data collected in Dutch coastal waters between 1951 and 1994. Landings of rays and skates have decreased by more than half compared with the post-war level. Starry ray has increased in abundance in the central North Sea between 1970 and 1993. Thornback ray virtually disappeared from the Dutch coastal area in 1958. No significant trend has been observed for the other species. ? 1996 International Council for the Exploration of the Sea

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