Results 41 to 50 of about 193 (139)
Ciencias Marinas, 2017 Fluvial-lagoon systems like the San Pedro River, a tributary of the Usumacinta River, are important habitats for Antillean manatees. These systems are characterized by complex watercourses that contain water with high turbidity levels, which have ...
Gissel Puc-Carrasco +3 more
doaj +1 more source
Ciencias Marinas, 2012 The Antillean manatee (Trichechus manatus manatus) is considered endangered in Mexico. Local extinctions have been documented in the northern Gulf of Mexico, and the only remaining population with a northern distribution is found in the Alvarado Lagoon ...
IC Daniel-Rentería +2 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2021 Environmental DNA metabarcoding is a tool with increasing use worldwide. The uses of such technology have been validated several times for diversity census, invasive species detection, and endangered/cryptic/elusive species detection and monitoring. With
Juan Diego Lozano Mojica +1 more
doaj +1 more source
Twelve years of “Astro” in Sergipe State: in search of harmony between the manatee and the local waterside communities =Doze anos de “Astro” no Estado de Sergipe: buscando harmonia entre o peixe-boi e as comunidades ribeirinhas [PDF]
Acta Scientiarum: Biological Sciences, 2012 The Antillean manatee (Trichechus manatus) is the most threatened aquatic mammal in Brazil. It was considered to be extinct in Sergipe until 1998, when a re-introduced animal (Astro) arrived.
Stephen Francis Ferrari +1 more
doaj +1 more source
Zoo Biology, EarlyView.ABSTRACT The success of nuclear reprogramming techniques, including the G0/G1 synchronization of somatic cells, depends on species‐specific optimization. While roscovitine and serum starvation have been successfully applied in domestic and wild terrestrial mammals, their use in aquatic mammals remains poorly investigated.
Luanna Lorenna Vieira Rodrigues +10 more
wiley +1 more source
Endangered Species Research, 2020 Population assessments and species monitoring for many endangered marine megafauna are limited by the challenges of identifying and tracking individuals that live underwater in remote and sometimes inaccessible areas.
Landeo-Yauri, SS +4 more
doaj +1 more source
Using Aerial Photogrammetry to Estimate Body Condition and Assess Sexual Dimorphism in Narwhals
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT The Arctic is warming rapidly, impacting ice‐dependent species and communities that rely on them for resources. Body condition indices (BCI) are widely used to assess individual health within populations. We adapted the methodology to improve accessibility for estimating narwhal body condition from drone footage, using body length, body width,
Kirsten J. Désorcy +4 more
wiley +1 more source
Ciencias Marinas, 2016 Abundance estimates for the Antillean manatee, Trichechus manatus manatus, in the southern Gulf of Mexico are based on interviews, mortality reports, and opportunistic sightings.
Giselle Puc-Carrasco +3 more
doaj +1 more source
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Drone photogrammetry provides a minimally invasive morphometric tool to assess growth and energy reserve in marine mammals. Converting drone‐derived measurements (e.g., body width) into body condition indices (BCIs, residuals from expected body girth, volume, or mass) requires prior knowledge of normative body shape. We developed and validated
Chiaki Yamato +2 more
wiley +1 more source
Journal of Zoological Systematics and Evolutionary Research, 2016 We employed landmark-based 3D geometric morphometrics to assess cranial size and shape diversification in Trichechus manatus and T. inunguis to compare it with patterns among all manatee taxa (T. manatus latirostris, T. m. manatus, T. inunguis and T. senegalensis), and to analyse geographic variation within American manatee populations, using a sample ...
Helen M. D. do R. Barros +6 more
openaire +1 more source