Acta Adriatica, Vol. 58 No. 1, 2017.
Original scientific paper
https://doi.org/10.32582/aa.58.1.10
Diet composition and overlap for 43 fishes in the North Aegean Sea, Greece
Paraskevi K. KARACHLE
; Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7 km Athens Sounio ave., P.O. Box 712, 19013 Anavyssos Attiki, Greece
Abstract
This study presents the diet composition of 43 of some of the most abundant fish species from the North Aegean Sea, Greece. According to the diet analysis and fractional trophic level previously
reported in the literature, 20 of the studied species were omnivores with a preference for animals and the other half were carnivores (15 with preference for fish and Cephalopoda, and seven with preference for fish and Decapoda), whereas Parablennius gattorugine was the only recorded omnivore with a preference for plant material. Finally, according to the results of Schoener’s index, diet overlap between species was recorded in a small number of cases (33 out of the 903 pairs examined). Yet, competition among diet-overlapping species may be minimised by either morphological differentiations and/or habitat segregation.
Keywords
feeding habits; diet overlap; Schoener’s index; Aegean Sea; East Mediterranean
Hrčak ID:
185182
URI
Publication date:
26.6.2017.
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