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9 results for “Aetobatus narinari”
Courtship behavior and a mating event of the Whitespotted eagle rays, Aetobatus narinari, in surrounding waters of the Anchieta Island State Park, Southeast Brazil.
<p>The Diving into Conservation project is a inititive that seeks to sensitize visitors of the Anchieta Island State Park (AISP), a protection area - IUCN Category II, about conservations matters, specially regaring the whitespotted eagle ray, <em>Aetobatus narinari</em>. The AISP's boundaries is safeguarded by a marine no-take zone. Since 2022, the project has been monitoring the AISP's surrounding waters, with volunteers conducting sampling campaigns using drones, Baited Remote Underwater Videos and Diver Operated Videos. Here, we present the records made on March 2023 and January 2024, showing the courtship behaviour and mating event of the species. Such findings reveal the importance of the protected areas as a safety place for mating events.</p>
Data from: Population structure and seasonal migration of the spotted eagle ray, Aetobatus narinari
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.
Data from: Population structure and seasonal migration of the spotted eagle ray, Aetobatus narinari
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Figure 6 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 6 Pupulinamantensis sp. n., adult male. A leg III B leg IV C antenna and post-antennal process D details of second antennal segment showing adhesion pads E mouth tube and mandible F terminal segment of antenna showing adhesion pads.
Figure 2 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 2 Pupulinamantensis sp. n., adult female. A habitus, dorsal view B same, ventral view C lateral border of cephalothorax, ventral view D leg V E caudal ramus F egg sac G antennule H antenna and post-antennal process I mandible J dentiform process of maxillule and post-oral process K maxilla L distal half of maxilla M maxilliped. Scale bars: A, B 800 µm; D 50 µm; F 450 µm; H 200 µm; K 400 µm; C, E, G, I, J, L, M 100 µm.
Figure 5 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 5 Pupulinamantensis sp. n., adult male. A habitus, ventral view B antenna and postantennal process C leg II D legs V and VI. Scale bars: A, 800 µm; B–D, 100 µm.
Figure 4 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 4 Pupulinamantensis sp. n., adult female. A leg I B leg II C leg III D leg IV. Scale bars: 200 µm.
Figure 3 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 3 Pupulinamantensis sp. n., adult female. A antenna and post-antennal process B maxilliped C mouth tube D mandible E leg I F leg II.
Figure 1 from: Cruz-Quintana Y, Caña-Bozada V, Suárez-Morales E, Santana-Piñeros AM (2018) A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador. ZooKeys 777: 1-16. https://doi.org/10.3897/zookeys.777.26017
Figure 1 Aetobatuscf.narinari captured in Los Esteros, Manabí, Ecuador. A Morphotype 1, showing solid white spots B Morphotype 2, showing ocellated white spots. Scale bars: 10 cm.
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