Malabsorption syndrome observed in the common octopus Octopus vulgaris infected with Aggregata octopiana (Protista: Apicomplexa)
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Short communication Aggregata octopiana (Protista: Apicomplexa): a dangerous pathogen during commercial Octopus vulgaris ongrowing
The 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...
متن کاملComparative x-ray microanalysis of the sporocyst wall of Aggregata octopiana and Aggregata eberthi (Protista: Apicomplexa)
Sporocyst walls of the coccidian parasites Aggregata eberthi and A. octopiana, were subjected to semiquantitative x-ray elemental microanalysis. Peaks above background level were obtained for Na, P, S and Si in both species, with also a peak for Ca in A. eberthi which was not detectable in A. octopiana. Whilst the amounts of Na, P and S can be considered similar for both species, the relative p...
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The Octopus vulgaris farming is impaired by the high mortality of the paralarvae during the first month of life. Several factors have been investigated in this regard, but no data exist on the body surface mucus, which represents the interface with the outside environment. This study included morphometric analysis and glycoconjugates characterization of skin mucus in reared Octopus vulgaris par...
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The common octopus, (Octopus vulgaris Cuvier, 1797) is widely distributed through the world. It represents an important resource with high economic value. It is exploited by trawl and by other gears such as trammel net, pots and it is also captured by diving. Although the multitude of assessment techniques, few fisheries cephalopods were well managed. In Tunisia, common octopus (Octopus vulgari...
متن کاملDietary Effect on the Proteome of the Common Octopus (Octopus vulgaris) Paralarvae
Nowadays, the common octopus (Octopus vulgaris) culture is hampered by massive mortalities occurring during early life-cycle stages (paralarvae). Despite the causes of the high paralarvae mortality are not yet well-defined and understood, the nutritional stress caused by inadequate diets is pointed out as one of the main factors. In this study, the effects of diet on paralarvae is analyzed thro...
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ژورنال
عنوان ژورنال: Diseases of Aquatic Organisms
سال: 2002
ISSN: 0177-5103,1616-1580
DOI: 10.3354/dao051061