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Anisakis infestation in marine fish and cephalopods from Galician waters: an updated perspective
Demographic values for larval nematodes are discussed in relation to host preferences and the ecological niche of both anisakid species at the sampling area and primary recommendations are also expressed concerning the effects of current fishing and aquaculture practices on the Anisakis problem.
Xenostrobus securis (Lamarck, 1819) (Mollusca: Bivalvia): first report of an introduced species in Galician waters
The presence of the non-indigenous species, the black-pygmy mussel Xenostrobus securis, is reported here for the first time in an intense shellfish farming area off Galicia (NW Spain). Very high
Anisakid infection in the European shag Phalacrocorax aristotelis aristotelis
The histopathology associated with the infections indicated that the anisakids did not have the potential to cause bird death, but the parasites are capable of contributing to and hastening avian mortality in the case of heavily-parasitized cormorants and when stressed by xenobiotics and/or through a synergetic effect by other bioagressors.
Malabsorption syndrome observed in the common octopus Octopus vulgaris infected with Aggregata octopiana (Protista: Apicomplexa).
The results suggest a malabsorption syndrome resulting from parasitic infection ofOctopus vulgaris infected with Aggregata octopiana, and the presence of degradative enzymes from phagocytic cells in the infected area.
Macroparasites in cetaceans stranded on the northwestern Spanish Atlantic coast.
6 new geographic records of macroparasites from cetaceans in temperate Atlanto-Iberian waters are presented, mainly parasitizing the blubber, mesentery and stomach of cetACEans.
The mussel Xenostrobus securis: a well-established alien invader in the Ria de Vigo (Spain, NE Atlantic)
Pathological analysis revealed that X. securis does not play any role as vector for introducing allochthonous pathogens in the Ria de Vigo, but depending on its invasiveness potential, the mussel could be a key host favouring spreading and epizootic outbreaks of marteliosis which is known to be harmful for local bivalve populations.
Vulcanoctopus hydrotermalis gen. et sp. nov. (Mollusca, Cephalopoda): an octopod from a deep-sea hydrotermal vent site
Nous decrivons ici deux specimens d'un octopode des sources hydrothermales de la ride du Pacifique oriental (13°N, 2640 m) recoltes pendant la campagne francaise HOT 96 (CNRS/IFREMER). Ces deux
Hepatic coccidiosis of the blue whiting, Micromesistius poutassou (Risso), and horse mackerel, Trachurus trachurus (L.), from Galician waters.
Although post-recruit individuals of both fish species apparently tolerate a severe infection, there was statistical evidence of a serious contribution by the parasite to poor body condition in M. poutassou shown by changes in the hepatosomatic and K-Fulton indices and in the length- to-weight relationship.