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dc.contributor.author
Varisco, Martin Alejandro
dc.contributor.author
Vinuesa, Julio Hector
dc.date.available
2023-04-11T10:59:54Z
dc.date.issued
2011-08
dc.identifier.citation
Varisco, Martin Alejandro; Vinuesa, Julio Hector; Infestation of the squat lobster Munida gregaria (Anomura: Galatheidae) by Pseudione galacanthae (Isopoda: Bopyridae) in San Jorge Gulf, Argentina; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 91; 8; 8-2011; 1681-1688
dc.identifier.issn
0025-3154
dc.identifier.uri
http://hdl.handle.net/11336/193131
dc.description.abstract
We estimated the prevalence of the bopyrid Pseudione galacanthae parasitizing the population of the squat lobster Munida gregaria in San Jorge Gulf and analysed some aspects concerning the effect of the parasite on host reproductive potential. The relationship between the development stages of the parasite and the host size was also analysed. The squat lobsters were caught as by-catch in the coastal area of the gulf from vessels operating in the fisheries of hake Merluccius hubbsi, southern king crab Lithodes santolla and Argentine red shrimp Pleoticus muelleri. The samples were collected between October 1997 and June 2009. In the laboratory, squat lobsters were sexed and the length of their carapace was measured. In males, the length of the right cheliped was recorded and gonadal development was examined. In females, the size and number of carried egg were determined and the length of the pleopods III, IV and V were measured. All squat lobsters parasitized exhibit a gross bulge in the right side of carapace. Prevalence ranged between 0 and 1.43% (N=21,519). No significant differences in prevalence were found for sexes, depths and seasons. The prevalence was higher for the size interval 7-10mm CL (0.79%) than for the rest of the intervals. Parasitism had no effect on the secondary sex characters. Parasitized males displayed gonad development. There was no difference in prevalence between ovigerous and non-ovigerous squat-lobster females. Parasitized females had smaller egg than non-parasitized ones, but their fecundity was similar. The linear relationship between the parasite and host sizes and the presence of larvae and immature stages of P. galacanthae in small-sized squat lobsters suggest that the host is infected early in its development. The low prevalence could be related to oceanographic conditions which favour larval dispersal of the parasite and host. The infestation by P. galacanthae has little impact on the M. gregaria population, mostly due to the low prevalences of infestation and the minor impact in reproductive function.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BOPYRID
dc.subject
GALATHEIDAE
dc.subject
PARASITISM
dc.subject
PREVALENCE
dc.subject
SOUTHERN ATLANTIC OCEAN
dc.subject.classification
Biología Marina, Limnología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Infestation of the squat lobster Munida gregaria (Anomura: Galatheidae) by Pseudione galacanthae (Isopoda: Bopyridae) in San Jorge Gulf, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-05T15:25:28Z
dc.journal.volume
91
dc.journal.number
8
dc.journal.pagination
1681-1688
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Varisco, Martin Alejandro. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Desarrollo Costero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Vinuesa, Julio Hector. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Desarrollo Costero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of the Marine Biological Association of the United Kingdom
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/abs/infestation-of-the-squat-lobster-munida-gregaria-anomura-galatheidae-by-pseudione-galacanthae-isopoda-bopyridae-in-san-jorge-gulf-argentina/6B5130FE077DE51DD349FEBCFD73BBC2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S0025315410000639
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