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A molecular approach to identifying the prey of cephalopod

AuthorsRoura, Álvaro ; González, Ángel F. ; Pascual, Santiago ; Guerra, Ángel
KeywordsArtemia franciscana
Cytochrome oxidate subunit
Octopus vulgaris
Issue Date2010
PublisherOxford University Press
CitationICES Journal of Marine Science 67(7): 1408-1412 (2010)
AbstractA molecular method was developed to detect Artemia franciscana within Octopus vulgaris paralarvae, as a first step towards understanding the diet of octopus during this life stage. Wild eggs were collected from a spawning female in the Ría de Vigo (northwestern Spain) in late summer, and brought to the laboratory. After hatching, paralarvae were reared in 30 l rectangular tanks with an open seawater filtered system. Paralarvae were fed Artemia, then immediately fixed in 80% ethanol and preserved at −20°C. Primers specific to A. franciscana were designed for the gene cytochrome c oxidase subunit I. A nested polymerase chain reaction was necessary to detect A. franciscana within octopus paralarvae. This molecular method provides a new framework for resolving the diet of cephalopod paralarvae in the wild, essential for ecological understanding and increasing survival rates in aquaculture
Description8 páginas, 2 figuras, 1 tabla
Publisher version (URL)http://dx.doi.org/10.1093/icesjms/fsq051
Appears in Collections:(IIM) Artículos
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