Talk:Atlantic cod
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[edit] North-East Atlantic Cod
I did some major changes in this article since the largest fraction of the Atlantic cod (North-East Atlantic Cod) was not present in the previous version. I also included a graph stating this point in catch terms. After the edits and additions I am however not sure where to place the sentence "The IUCN lists the species as vulnerable." Surely it does seem to apply for the North-West Atlantic Cod, but it is also true in the case of the North-East Atlantic Cod? In that case: Should the North-East Atlantic Cod be separated into two fractions? --Arnejohs 07:00, 2 May 2004 (UTC)
[edit] Cannibalism
A new contributor, DagHjermann, has provided some valuable additions concerning the North-East Atlantic cod. The following sentence may however be disputed:
- The North-East Arctic Cod also shows cannibalistic behaviour, especially when there is little capelin available.
Not because of the cannibalistic behaviour, but rather the linkage to capelin. In Bogstad, B., G.R. Lilly, S. Mehl, Ó.K. Pálsson and G. Stefánsson (1994). Cannibalism and year-class strength in Atlantic cod (Gadus morhua) in Arcto-boreal ecosystems (Barents Sea, Iceland, and eastern Newfoundland). ICES Mar.Sci.Symp. 198, 576-599. the cannibalistic behaviour is verified by stomach analyses covering the time period 1949-1992. The main conclusions of this study are that cannibalism increases with predator length, most prey are less than 40 cm in length and less than 3 years old; cod eat large numbers of the young, especially those of ages 0-2 years. The frequency of occurrence of cannibalism increased with the abundance of juvenile cod (this for the Barents Sea), while there was little support for the hypothesis that the frequency of cannibalism increased when the abundance of capelin, the major prey of cod, was low. The findings of this study have been implemented in the MULTSPEC simulation model used by the Norwegian Institute of Marine Research.
Arnejohs 09:59, 4 Oct 2004 (UTC)
[edit] Size
Does not grow that large in most circumstances, usually 60-70 cms.
[edit] Red list
Source regarding Northeast Atlantic cod: [1] --Arnejohs 00:15, 22 January 2007 (UTC)
[edit] North-West Atlantic Cod
This explanation for the NW Atlantic Cod collapse that is "at odds with science" seems to be non-sensical to me - at least the way that it is described here is. This should be either tidied up to make more sense, or deleted. Also, there is very little useful information on the collapse of this stock - there has been plenty written and debated about this over the years, so why nothing in here?. Trevva 09:49, 29 March 2007 (UTC)
