Feeding and food relationships of juvenile chum salmon (Oncorhynchus keta) and pink salmon (O. gorbuscha) in coastal waters of Prostor Bay (Iturup Island)

Autor:	G. S. Zelenikhina, V. V. Chebanova, S. E. Frenkel
Rok vydání:	2015
Předmět:	biology Stomach fullness Aquatic Science biology.organism_classification medicine.disease_cause Fishery Feeding behavior Open sea Infestation medicine Oncorhynchus Brachyphallus crenatus Juvenile General Agricultural and Biological Sciences Bay
Zdroj:	Journal of Ichthyology. 55:671-678
ISSN:	1555-6425 0032-9452
DOI:	10.1134/s0032945215050057
Popis:	The feeding behavior of juvenile chum salmon (Oncorhynchus keta) and pink salmon (Oncorhynchus gorbuscha) is given for the period of their joint fattening in the coastal waters of Prostor Bay (Iturup Island). Investigations show decrease of variability in food content and stomach fullness indexes while juveniles move from shallow-water towards the open sea. Feeding selectivity of chum salmon and pink salmon for some species of copepods is studied and is shown to reduce tension in food relationships. High infestation of juveniles with trematode Brachyphallus crenatus is identified.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dcd24d06df028668362ee0d5991ddf20 https://doi.org/10.1134/s0032945215050057 Zobrazit plný text záznamu Full text from SpringerLink