A preliminary comparison of the trophic structure of some large marine ecosystems.

Froese, Rainer , Piatkowski, Uwe , Garthe, Stefan and Pauly, Daniel (2001) A preliminary comparison of the trophic structure of some large marine ecosystems. Open Access [Paper] In: ICES Annual Science Conference 2001. , 23.09.-03.10.2001, Oslo, Norway . ICES Council Meeting Papers, T:07 .

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Abstract

Five large marine ecosystems are compared in respect to the signatures created by plots of number and average size of species by trophic level. Preliminary results suggest that these signatures are similar for similar ecosystems (here: Baltic Sea and Black Sea as examples of brackish, temperate ecosystems, and Caribbean and South China Sea as examples of tropical ecosystems), and different for different ecosystems (here: temperate vs tropical systems). Also, the shape and the position of the signatures appear to be predictable, as shown for the North Sea, which has a similar shape but intermediate position between the species-poor Baltic and Black Sea, and the species-rich tropical systems. Individual signatures can be interpreted and reveal special characteristics, as shown by the lower part of the Caribbean signature, which has a different trend then the other signatures, indicating that the Caribbean has relatively more herbivorous fishes. Fish data were extracted from www.fishbase.org. Preliminary signatures for cephalopods, marine mammals, and marine birds indicate the different roles of these groups in ecosystems. In the North Sea, vertebrates (fish, birds, marine mammals) and cephalopods are restricted to trophic levels above 3, with the exception of very few fish and bird species).
Invertebrates are restricted to trophic levels below 3, again with very few exceptions.

Document Type: Conference or Workshop Item (Paper)
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Kiel University
Projects: FishBase
Date Deposited: 22 Sep 2017 09:56
Last Modified: 22 Sep 2017 09:56
URI: http://oceanrep.geomar.de/id/eprint/39530

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