2024-03-28T08:49:52Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/54472020-11-10T08:36:46Zcom_10261_123com_10261_8col_10261_376
Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey
Cartes, Joan Enric
Abelló, Pere
Lloris, Domingo
Carbonell, Aina
Torres, Pedro
Maynou, Francesc
Gil de Sola, Luis
Feeding guilds
Demersal fish
Decapod crustaceans
Western Mediterranean
Trawl survey
Mediterranean Sea
The MEDITS-99 sampling was performed along all the Iberian Peninsula coasts of the western Mediterranean (from the Alborán Sea to Cape Creus) in a space-scale of 1000 Km N-S, at depths ranging between 27-790 m. Fish and decapod crustaceans were dominant in the megafaunal compartment sampled by trawling. Based on both the fish and the decapod crustacean compositions, a comparison of trophic guilds has been attempted, with fish and decapods classified as: 1) migrator macroplankton feeders (mM), 2) non-migrator macroplankton feeders (nmM), 3) nektobenthos-suprabenthos feeders (NS), 4) epibenthos feeders (Epib), 5) large detritus-scavengers (Sca), 6) infaunal feeders (Inf), 7) deposit feeders (Dep) and 8) small detritivorous feeders (Det). Multivariate techniques showed the following differences in the trophodynamics of the megafaunal assemblages along the coasts of the Iberian Peninsula: 1) crustaceans (mainly decapods) have different trophic structures on the shelf and on the slope; 2) on the slope, fish exhibited more clear changes as a function of the geographical gradient than crustaceans; and 3) trophodynamics of bathyal fish showed some geographic variations between the Alborán Sea, the Catalano-Balearic Basin, and the Algerian Basin (Vera Gulf and Alicante sectors), with a progressive north-south increase in planktophagous species
2008-06-30T10:01:18Z
2008-06-30T10:01:18Z
2002-07
artículo
Scientia Marina 66(Suppl.2): 209-220 (2002)
0214-8358
http://hdl.handle.net/10261/5447
10.3989/scimar.2002.66s2209
1886-8134
eng
https://doi.org/10.3989/scimar.2002.66s2209
openAccess
CSIC - Instituto de Ciencias del Mar (ICM)