AACL BIOFLUX Feeding ecology of knout goby (Mesogobius batrachocephalus Pallas, 1814) from the Romanian Black Sea (Agigea -Eforie Nord area)

Abstract. The present study investigates the variations in the feeding ecology of the knout goby (M. batrachocephalus). The index of relative importance indicated opportunistic feeding on macrobenthic fauna. The fish fed mainly on bivalves, fishes, amphipods and isopods. There were differences in di...

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Bibliographic Details
Main Authors: Irina Roşca, Ciprian Claudiu Mânzu
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2011
Subjects:
Amfipode
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1048.8501
http://www.bioflux.com.ro/docs/2011.4.123-129.pdf
Description
Summary:Abstract. The present study investigates the variations in the feeding ecology of the knout goby (M. batrachocephalus). The index of relative importance indicated opportunistic feeding on macrobenthic fauna. The fish fed mainly on bivalves, fishes, amphipods and isopods. There were differences in diet composition during the years, seasons and sexes. M. batrachocephalus exhibited a generalist feeding strategy with a relative broad niche width. Key words: knout goby, feeding ecology, benthos, Black Sea. Rezumat. S-a analizat spectrul trofic al speciei M. batrachocephalus şi variaţiile acestuia în sectorul Agigea-Eforie Nord al Mării Negre. Indicele de importanţă relativă a indicat un mod de hrănire generalist. Această specie se hrăneşte în principal cu bivalve, peşti, amfipode şi izopode. Au fost observate variaţii ale spectrului trofic în funcţie de anul de colectare, sezon şi sexul indivizilor. M. batrachocephalus a prezentat o nişă trofică vastă.

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