Publication: Aggregata (Protozoa: Apicomplexa) infection in the common octopus Octopus vulgaris from the West Mediterranean Sea: The infection rates and possible effect of faunistic,environmental and ecological factors
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Date
2013-04-13
Authors
Mayo-Hernández, E. ; Barcala, E. ; Berriatua, E. ; Muñoz, P. ; García Ayala, Alfonsa
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Publisher
Elsevier
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DOI
https://doi.org/10.1016/j.seares.2013.04.001
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info:eu-repo/semantics/article
Description
©2013. Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This document is the published, version of a published work that appeared in final form in Journal of Sea Research. To access the final edited and published work see https://doi.org/10.1016/j.seares.2013.04.001
Abstract
Prevalence and distribution of the coccidian parasite Aggregata octopiana (Protozoa: Apicomplexa) in common
octopus (Octopus vulgaris) in the Mediterranean Spanish coasts were studied. A total of 114 octopuses were
sampled from 30 geographic sectors by trawlfleet, and whitish macroscopic oocysts typical of A. octopiana
infection were recorded in 96% of octopuses in the digestive tract and mainly in intestine and spiral caecum. The
univariate analysis showed that lesion extension varied according to specific octopus, environmental and faunis-
tic variables. A subsequent multivariable analysis indicated that the risk of macroscopic lesions in the caecum
was greater in males compared to females, in octopuses living in deeper compared to shallower waters and in
hauls where the crustacean.Pagurus excavatus was present. The study provides further evidence of the
abundance of A. octopianain octopus ecosystems urging for further studies to evaluate its health impact. The
combined abundance of infected octopuses and P. excavatus merits attention.
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