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2 resultados encontrados para: AUTOR: Hueter, Robert E.
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- Artículo con arbitraje
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Observations of spotted eagle rays (Aetobatus narinari) in the Mexican Caribbean using photo-ID
Cerutti Pereyra, Florencia ; Bassos Hull, K. (coaut.) ; Arvizu Torres, Ximena (coaut.) ; Wilkinson, K. A. (coaut.) ; García Carrillo, I, (coaut.) ; Pérez Jiménez, Juan Carlos (coaut.) ; Hueter, Robert E. (coaut.) ;
Contenido en: Environmental Biology of Fishes Vol. 101, no. 2 (February 2018), p. 237–244 ISSN: 0378-1909
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Resumen en: Inglés |
Resumen en inglés

The spotted eagle ray is an iconic species for the recreational diving and snorkeling industry in the Mexican Caribbean although it is heavily fished in nearby waters of the southern Gulf of Mexico and in Cuba. This species is listed on the IUCN Red List of Threatened Species as ‘Near Threatened’ with a decreasing population trend. Few studies have reported on the populations and migrations of spotted eagle rays in the Atlantic Ocean, Gulf of Mexico and Caribbean Sea, and no regulations currently exist for the fishery or tourism industries in Mexico. Photographic identification techniques were used to produce the first photo-ID catalog of spotted eagle rays in the Mexican Caribbean using 1096 photographs submitted by researchers and divers between 2003 and 2016. In total, 282 individual spotted eagle rays were identified through photographs at nine sites across the Mexican Caribbean. Of these individuals, 14.9% were resighted at least once at the same site. The longest period between re-sighting events was 342 days. This is the first study evaluating freeswimming spotted eagle rays in the Mexican Caribbean and highlights the value of using photo-ID for monitoring populations of this ray. Because a targeted subsistence fishery for spotted eagle rays exists in nearby waters, management efforts to monitor and prevent overexploitation at key diving locations should be a priority for local government agencies.

- Artículo con arbitraje
Population structure and seasonal migration of the spotted eagle ray, Aetobatus narinari
Sellas, Anna B. ; Bassos Hull, Kimbrough (coaut.) ; Pérez Jiménez, Juan Carlos (coaut.) ; Angulo Valdés, Jorge Alberto (coaut.) ; Bernal, Moisés A. (coaut.) ; Hueter, Robert E. (coaut.) ;
Contenido en: Journal of Heredity Vol. 106, no. 3 (May-Jun 2015), p. 266-275 ISSN: 1465-7333
Resumen en: Inglés |
Resumen en inglés

Few studies have reported on the fine-scale population genetics of batoid species in the Atlantic basin. Here, we investigate the genetic diversity and population structure of the spotted eagle ray, Aetobatus narinari, sampled in the northeastern and southwestern parts of the Gulf of Mexico and in the northwestern Caribbean Sea. Samples were collected from 286 individuals sampled across 3 geographic localities. Estimates of divergence based on the mitochondrial cytochrome b gene and 10 nuclear microsatellite loci reveal weak but significant genetic structure among A. narinari populations in this region. Analysis of molecular variance estimates based on both marker types indicate significant differentiation between Florida and Mexico populations, while comparisons with Cuba suggest high levels of gene flow with rays from both Mexico and Florida. Conflicting results were found from the different marker types when sexes were analyzed separately underscoring the importance of applying multiple marker types when making inferences about population structure and sex-biased dispersal. Results from Bayesian clustering analyses suggest rays may be migrating south out of the Gulf of Mexico and into the northwestern Caribbean Sea. Given the impacts of fisheries on this species, coupled with the lack of population genetic data available, these findings offer valuable information to aid with conservation management strategies.