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Opportunistic Feeding in Mediterranean Blennioid Fishes (Blenniidae and Tripterygion) as Revealed by Experimental Food Provisioning in the Field
Author(s) -
Kotrschal Kurt,
G.Lindquist Dave,
Illich Ingeborg P.
Publication year - 1991
Publication title -
marine ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 58
eISSN - 1439-0485
pISSN - 0173-9565
DOI - 10.1111/j.1439-0485.1991.tb00084.x
Subject(s) - trophic level , opportunism , biology , ecology , mediterranean climate , abundance (ecology) , zoology , market economy , economics
. Consistent differences were found in trophic opportunism between species and between sexes by food provisioning experiments in an assemblage of 15 species of Mediterranean blennioid fishes. The degree of trophic opportunism in the different species was significantly and positively correlated with body size and two features indicative for intensity of male parental care. The degree of trophic opportunism correlated neither with trophic level, depth distribution, or relative abundance. Females of all species in which sex could be distinguished visited the feeding stations at higher frequencies than conspecific males.