INVESTIGADORES
CREMONTE Florencia
artículos
Título:
Diseases and parasites of wild and cultivated mussels along the Patagonian coast of Argentina, southwest Atlantic Ocean
Autor/es:
VÁZQUEZ, N; FRIZZERA, A; CREMONTE, F
Revista:
DISEASES OF AQUATIC ORGANISMS
Editorial:
INTER-RESEARCH
Referencias:
Año: 2020 vol. 139 p. 139 - 152
ISSN:
0177-5103
Resumen:
A histological survey of the commercially edible mussels Mytilus platensis andM. chilensis from wild and cultivated populations along the coast of Patagonia, Argentina (42° 00?to 54°47? S), was carried out to determine their health status. Diagnostic results included 3 typesof inflammatory responses (infiltrative, nodular, and encapsulation), disseminated neoplasia disease, 2 abnormal reproductive conditions (gonadal atresia and intersex), prokaryotic inclusions,protozoans, and metazoans. Pathogen prevalence and infection intensity among mussels of different sampling sites and between those of wild and cultivated populations were compared. Inflammatory responses were recorded in all mussels from all sites, while disseminated neoplasia onlyoccurred in the most southern cultivated M. chilensis. Intracellular pro karyotic inclusions werebroadly distributed in the mussels from both northern and southern Patagonian coasts. Ciliatesshowed the highest prevalence among wild mussels from the colder waters of Bahía Brown.Turbellaria were recorded at higher prevalence in cultured mussels (41.7%), and trematode metacercariae occurred exclusively in intertidal wild mussels. None of the parasites found appears tobe a problem to the fishery or farming, although disseminated neoplasia should be monitored. Inaddition, we found that mytilid species coexisting with M. platensis (Aulacomya atra andPerumytilus purpuratus) at one location shared the same pathological conditions and parasites,which differed from those of M. platensis at a distant locality. These results suggest that pathological conditions and parasites were influenced more by ecological habitat factors than by the species of mussels present, based on similar parasite assemblages found among closely relatedmytilid hosts in the same geographical area.
