Cod versus shrimp dominance in West Greenland waters: Can climate change reverse the regime shift from a cod to a shrimp dominated ecosystem off West Greenland? ...

No abstracts are to be cited without prior reference to the author.Relative warm conditions prevailed at Greenland from the beginning to the mid of the 20th century and in this period a self-sustaining and very abundant cod stock existed in West Greenland offshore waters. A prolonged period of decli...

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Bibliographic Details
Main Authors: Wieland, Kai, Hovgård, Holger
Format: Conference Object
Language:unknown
Published: ASC 2009 - Theme session C 2024
Subjects:
Online Access:https://dx.doi.org/10.17895/ices.pub.25070456.v1
https://ices-library.figshare.com/articles/conference_contribution/Cod_versus_shrimp_dominance_in_West_Greenland_waters_Can_climate_change_reverse_the_regime_shift_from_a_cod_to_a_shrimp_dominated_ecosystem_off_West_Greenland_/25070456/1
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Summary:No abstracts are to be cited without prior reference to the author.Relative warm conditions prevailed at Greenland from the beginning to the mid of the 20th century and in this period a self-sustaining and very abundant cod stock existed in West Greenland offshore waters. A prolonged period of decline in stock biomass was observed from 1950 to 1975 at intense fishing. The West Greenland cod stock collapsed completely in the beginning of the 1990s when colder conditions prevailed and mean size at age declined drastically. Air and ocean temperature increased again above average in the end of the 1990s but first in 2005 an initial sign for a rebuilding of the stock has been seen. However, a self-sustaining spawning stock has yet not been re-established in Greenland offshore waters. An offshore fishery for Northern shrimp began in the 1970s and a threefold increase in stock biomass at West Greenland occurred from 1997 to 2003 at moderate fishing levels. In the most recent years, shrimp disappeared from Southwest ...