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Size and relative condition index of the brown sea cucumber Isostichopus fuscus in the northern Gulf of California, Mexico

dc.contributorSAGARPA-CONACYT 225235, PROCODES OSC1en-US
dc.creatorReyes-Bonilla, Héctor
dc.creatorCalderón-Aguilera, Luis E.
dc.creatorGalaviz-López, Juan Manuel
dc.creatorHerrero-Pérezrul, María Dinorah
dc.date2018-09-11
dc.date.accessioned2020-11-05T13:36:27Z
dc.date.available2020-11-05T13:36:27Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue4-fulltext-21
dc.identifier10.3856/vol46-issue4-fulltext-21
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159085
dc.descriptionThe brown sea cucumber Isostichopus fuscus is the most important commercial holothurian in the eastern Pacific, and its high market value caused overfishing and sharp declines of its populations and catches in several Latin American countries. In Mexico, the fishery has been intense in the northern Gulf of California since the 1990s, and it is currently under strong regulation. To evaluate the current status of the organisms, we measured the size, weight and estimated the relative condition index (Kn) of 702 specimens sampled in 86 rocky reefs of that region in 2016, at depths from 3 to 22 m. Mean length ± SD was 22.32 ± 5.23 cm, lower than average in the northern Gulf, but nevertheless, the average weight was 420.61 ± 192.48 g, among the highest recorded in the eastern Pacific; this is presumably due to the high primary production of the region that favors the presence of well-nourished organisms. The weight (W)-length (L) relationship was W = 3.27 L1.56, and condition index ranged from 0.045 to 2.13 (mean Kn = 0.96 ± 0.29), a figure that did not differ to that reported along the Mexican Pacific. There were differences in the value of Kn among sites, being higher in areas that are subject to the low fishing effort.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue4-fulltext-21/980
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol46-issue4-fulltext-21/1125
dc.sourceLatin American Journal of Aquatic Research; Vol 46, No 4 (2018); 831-836en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 46, No 4 (2018); 831-836es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectholothurian; size; weight-length; relative condition index; marine protected area; Baja Californiaen-US
dc.titleSize and relative condition index of the brown sea cucumber Isostichopus fuscus in the northern Gulf of California, Mexicoen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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