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Base indexes for marine communities in the southern Gulf of Mexico derived from shrimp-fishery data

dc.contributorOrganizacion de las Naciones Unidas para la alimentacion y Agricultura (FAO), Instituto Nacional de Pesca y Acuacultura (INAPESCA) y Universidad Autónoma de Campeche (UAC)en-US
dc.creatorMiranda, Julia Ramos
dc.creatorWakida-Kusunoki, Armando T.
dc.creatorFlores Hernández, Domingo
dc.creatorGómez Criollo, Francisco
dc.creatorQuiroga Brahms, Cecilia
dc.creatorRamos Hernández, Rafael
dc.creatorRojas-González, Ramón Isaac
dc.date2023-10-31
dc.date.accessioned2024-05-02T20:44:50Z
dc.date.available2024-05-02T20:44:50Z
dc.identifierhttps://www.lajar.cl/index.php/rlajar/article/view/vol51-issue5-fulltext-2940
dc.identifier10.3856/vol51-issue5-fulltext-2940
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/242631
dc.descriptionIn Mexico, shrimp is the most important fishing resource in terms of value, and second in production. Ten percent of the country's production comes from catches in the southern Gulf of Mexico. Several studies report the number of marine species recorded in this zone; however, few consider bycatch, and still fewer determine biodiversity indexes. This work identified the species captured in shrimp trawls from 22 commercial fishing trips from August 2016 to December 2017 in the south of the Gulf of Mexico. Four indexes of taxonomic diversity were determined: richness, evenness, average taxonomic distinctness, and variation. The indexes were calculated by season (dry, rainy, and northerly), spatial scale (terrigenous, carbonate, and Contoy zones), and depth interval: 1 (<10 m), 2 (10-20 m), 3 (20-40 m), and 4 (>40 m). The zones were separated according to the sedimentological characteristics described in the literature, and the depth ranges were arbitrarily defined considering the bathymetry of the zone. Nine classes, 51 orders, 121 families, 207 genera, and 334 species (152 terrigenous, 289 carbonates, and 76 Contoy) were recorded. Evenness index was highest in Contoy (0.75), followed by the terrigenous (0.54) and carbonate zones (0.35). Average taxonomic distinctness was greater in the carbonate (83.51) zone, followed by the Contoy (75.83) and terrigenous (74.55) zones. Contoy was identified as the most variable based on taxonomic distinctness (301.1). Also, the same index calculated by depth stratum and zone showed that the deeper zones generally have more phylogenetic relationships. The determinations of these indexes are proposed and can be used as points of reference to assess the variation and status of marine communities in the region.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttps://www.lajar.cl/index.php/rlajar/article/view/vol51-issue5-fulltext-2940/1772
dc.relationhttps://www.lajar.cl/index.php/rlajar/article/downloadSuppFile/vol51-issue5-fulltext-2940/2358
dc.rightsCopyright (c) 2023 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 51, No 5 (2023); 760-773en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 51, No 5 (2023); 760-773es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectbase line; bycatch; shrimp fishing, trawl; biodiversity index; Contoy zone; Campeche Sounden-US
dc.titleBase indexes for marine communities in the southern Gulf of Mexico derived from shrimp-fishery dataen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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