Long-term changes in ray populations in the North Sea

P.A. Walker; H.J.L. Heessen

doi:10.1006/jmsc.1996.0135

Long-term changes in ray populations in the North Sea

P.A. Walker, H.J.L. Heessen

Research output: Contribution to journal › Article › Academic › peer-review

129 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1085-1093
Journal	ICES Journal of Marine Science
Volume	53
Issue number	6
DOIs	https://doi.org/10.1006/jmsc.1996.0135
Publication status	Published - 1996

Keywords

abundance
distribution
Raja spp.

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10.1006/jmsc.1996.0135

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title = "Long-term changes in ray populations in the North Sea",

abstract = "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.",

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author = "P.A. Walker and H.J.L. Heessen",

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AU - Walker, P.A.

AU - Heessen, H.J.L.

PY - 1996

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N2 - 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.

AB - 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.

KW - abundance

KW - distribution

KW - Raja spp.

U2 - 10.1006/jmsc.1996.0135

DO - 10.1006/jmsc.1996.0135

M3 - Article

SN - 1054-3139

VL - 53

SP - 1085

EP - 1093

JO - ICES Journal of Marine Science

JF - ICES Journal of Marine Science

IS - 6

ER -

Long-term changes in ray populations in the North Sea

Abstract

Keywords

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