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Acta Adriatica : international journal of Marine Sciences, Vol.52 No.1 June 2011.

Original scientific paper

Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea

Sule GURKAN ; Ege University, Faculty of Fisheries, Department of Hydrobiology, 35100 Izmir, Turkey
Tuncay Murat SEVER ; Ege University, Faculty of Fisheries, Department of Hydrobiology, 35100 Izmir, Turkey
Ertan TASKAVAK   ORCID icon orcid.org/0000-0001-8949-1827 ; Ege University, Faculty of Fisheries, Department of Hydrobiology, 35100 Izmir, Turkey

Fulltext: english, pdf (591 KB) pages 5-13 downloads: 358* cite
APA 6th Edition
GURKAN, S., SEVER, T.M. & TASKAVAK, E. (2011). Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea. Acta Adriatica, 52 (1), 5-13. Retrieved from https://hrcak.srce.hr/89579
MLA 8th Edition
GURKAN, Sule, et al. "Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea." Acta Adriatica, vol. 52, no. 1, 2011, pp. 5-13. https://hrcak.srce.hr/89579. Accessed 16 Dec. 2018.
Chicago 17th Edition
GURKAN, Sule, Tuncay Murat SEVER and Ertan TASKAVAK. "Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea." Acta Adriatica 52, no. 1 (2011): 5-13. https://hrcak.srce.hr/89579
Harvard
GURKAN, S., SEVER, T.M., and TASKAVAK, E. (2011). 'Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea', Acta Adriatica, 52(1), pp. 5-13. Available at: https://hrcak.srce.hr/89579 (Accessed 16 December 2018)
Vancouver
GURKAN S, SEVER TM, TASKAVAK E. Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea. Acta Adriatica [Internet]. 2011 [cited 2018 December 16];52(1):5-13. Available from: https://hrcak.srce.hr/89579
IEEE
S. GURKAN, T.M. SEVER and E. TASKAVAK, "Seasonal Food Composition and Prey-Length Relationship of Pipefish Nerophis ophidion (Linnaeus, 1758) Inhabiting the Aegean Sea", Acta Adriatica, vol.52, no. 1, pp. 5-13, 2011. [Online]. Available: https://hrcak.srce.hr/89579. [Accessed: 16 December 2018]

Abstracts
This study examined the gut content of 43 Nerophis ophidion individuals obtained from Izmir Bay, Eastern Aegean Sea. A four season sampling process provided 7 groups of prey: Ostracoda, Amphipoda, Gastropoda, Cirripedia, Decapod crustacea, bentic Cinideria and Copepoda (Calanoid, Harpacticoid, Cyclopoid-Sapphirina sp., E. acutifrons and Monstrilloid) Harpacticoid copepod, Cyclopoid copepod Cypris larvae and Ostracoda. Only 4 stomachs were empty. Gastropoda (9.47%), Amphipoda (37.22%) and Harpacticoid copepod (1.77%) are considered as dominant prey in the food composition of N.ophidion. On the other hand, Harpacticoid and Cyclopoid copepods are found in almost all sampling periods, and thus they are considered as major prey. Amphipoda was the most predominant prey in both spring (24.39%) and summer (12.82%), and Gastropoda (6.32%) in autumn. The presence of Harpacticoid copepods consumed by almost all lengths of fish indicates that their intake by pipefish derives from bentic vegetation rather than the water column. The ability to consume larger prey may be correlated with fish size. In our study, while larger Nerophis ophidion had an intake of relatively larger prey, they continued to catch smaller prey items as well. This result may imply that the bigger the fish in size, the more prey groups they could catch.

Keywords
food composition; Nerophis ophidion; pipefish; Aegean Sea

Hrčak ID: 89579

URI
https://hrcak.srce.hr/89579

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