Ponomarenko, V P (1996): Points and dates of tagging and recapture of mature cod in the southern Barents Sea in 1937-1955 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.759892, Supplement to: Ponomarenko, VP (1996): The role of the Murmansk spawning grounds in reproduction of cod populations in the Barents Sea. Translated from Okeanologiya, 1996, 36(2), 268-276, Oceanology, 36(2), 248-256
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Abstract:
Barents cod spawn in the Motovsky Bay during the periods of warming in the Arctic when proportion of mature fish in the population is high enough. Cod spawning is most likely to occur in the Motovsky Bay when large cod forage in southeastern waters, and prespawning fish migrate close by the Murmansk coast. Under such conditions cod spawn in the Motovsky Bay, but low water temperature and slow egg drift toward Murmansk coastal waters delay development of cod eggs. As a result the eggs remain at the first stage for a long time; this causes high egg mortality before hatching. Larvae that survive and become pelagic and then bottom juveniles nevertheless have little chance to survive in winter because they are not biologically ready for overwintering. Thus, delay in egg development at the first stage delays subsequent stages of fish ontogeny, and strongly impairs survival of cod juveniles from the Motovsky Bay.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 70.500886 * Median Longitude: 31.096091 * South-bound Latitude: 67.666667 * West-bound Longitude: 12.933333 * North-bound Latitude: 75.750000 * East-bound Longitude: 55.500000
Date/Time Start: 1937-03-13T00:00:00 * Date/Time End: 1955-08-13T00:00:00
Event(s):
Pon-96a-T1-1 * Latitude Start: 69.733333 * Longitude Start: 52.183333 * Latitude End: 68.183333 * Longitude End: 14.550000 * Date/Time Start: 1938-10-29T00:00:00 * Date/Time End: 1939-03-02T00:00:00 * Method/Device: Net (NET)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Ponomarenko, VP (1996): (Table 1) Data on mature cod tagged in the southern Barents Sea and recaptured at the Lofoten spawning grounds and in the Motovsky bay. https://doi.org/10.1594/PANGAEA.759884
- Ponomarenko, VP (1996): (Table 2) Data on tagging and recapturing of mature cod in 1946-1949. https://doi.org/10.1594/PANGAEA.759889