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Aggregata octopiana (Protista: Apicomplexa): a dangerous pathogen during commercial Octopus vulgaris ongrowing

AuthorsGestal, C. ; Guerra, Ángel ; Pascual, Santiago
KeywordsAggregata octopiana
Octopus vulgaris
Issue DateOct-2007
PublisherOxford University Press
CitationIces Journal of Marine Science 64(9): 1743-1748 (2007)
AbstractThe haemolymph parameters for Octopus vulgaris and the condition index at molecular level were analysed using RNA/DNA and RNA/protein ratios on animals reared in floating cage systems and naturally infected by the coccidian Aggregata octopiana. Statistical analysis showed that as A. octopiana infection increased, there was a decrease in most inorganic elements and/or in haemocyte concentrations in cellular and/or plasma fractions. Also, the protein concentrations in the haemolymph plasma fraction dropped significantly as the coccidian infection increased. Results suggest that the severity of the infection by A. octopiana is a limiting factor during commercial ongrowing of the common octopus, at least in floating cage systems. Control measurements are needed in aquaculture to avoid this environmental stressor.
Description6 pages, 3 tables.-- Short communication.
Publisher version (URL)http://dx.doi.org/10.1093/icesjms/fsm154
Appears in Collections:(IIM) Artículos
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