A5034199343- Marine animal studies overview
- Isotope Analysis in Ecology
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Cephalopods and Marine Biology
- Polar Research and Ecology
- Mercury impact and mitigation studies
- Cryospheric studies and observations
- Identification and Quantification in Food
- Marine and fisheries research
- Avian ecology and behavior
- Animal Vocal Communication and Behavior
- Genetic diversity and population structure
- Fish Biology and Ecology Studies
- Arctic and Russian Policy Studies
- Fish Ecology and Management Studies
- Coastal and Marine Management
- Fish biology, ecology, and behavior
- Natural Products and Biological Research
- Health and Medical Education
- Arctic and Antarctic ice dynamics
- Wildlife Ecology and Conservation
- Marine and coastal plant biology
- Geology and Paleoclimatology Research
- Species Distribution and Climate Change
Universidad de Los Andes
2017-2024
Pontificia Universidad Javeriana
2023-2024
Raincoast Conservation Foundation
2023
Science and Technology Corporation for Naval, Maritime and Riverine Industry Development
2020-2023
Dirección General Marítima
2020-2023
Migration Institute of Australia
2022
STMicroelectronics (France)
2022
Orano (United States)
2021
Dolphins of the genus Stenella occur in pelagic waters both tropical and warm-temperate oceans. Three species, Atlantic spotted dolphin (Stenella frontalis), pantropical (S. attenuata), spinner longirostris) are abundant worldwide, but Caribbean Basin they have been poorly studied information on their distribution patterns is scarce. Specifically, Colombia's remote Seaflower Biosphere Reserve (SFBR) S. attenuata has reported occasionally, frontalis longirostris never recorded before. To...
The current conservation status of the bottlenose dolphin (Tursiops truncatus) under IUCN is 'least concern'. However, in Caribbean, small and localized populations 'inshore form' may be at higher risk extinction than 'worldwide distributed due to a combination factors including population size, high site fidelity, genetic isolation, range overlap with human activities. Here, we study structure dolphins from Archipelago Bocas del Toro Panama. This characterized by fidelity currently...
The nearest known population of common dolphins (Delphinus sp.) to the Colombian Caribbean occurs in a fairly restricted range eastern Venezuela. These have not been previously reported Caribbean, likely because lack study local cetacean fauna. We collected observations waters Guajira Department, northern Colombia (~11°N, 73°W) during two separate efforts: (a) seismic vessel survey (December 2009-March 2010), and (b) three coastal surveys from small boats (May-July 2012, May 2013, 2014)....
The Agoa protected marine area, located in the French West Indies, eastern Caribbean, holds several cetacean species, of which pantropical spotted dolphin Stenella attenuata is most commonly observed. This species focus whale-watching activities off leeward coasts Guadeloupe and Martinique, has allowed development a citizen science program to characterize individuals through collection photographic data. Here, we conducted photo-identification study with sample 115,705 photos collected...
The freshwater stingray Paratrygon aiereba have coloration, osteological and morphometric variations that could suggest the existence of more than one species in Colombia. In order to evaluate phylogeography, population structure genetic diversity for P. distributed Amazon Orinoco basins, we amplified Cytochrome oxidase subunit 1 (COI) partial region mitochondrial DNA (mtDNA) 50 samples from eight different sub-basins. Our results three phylogroups a vicariance event occurred 43 million...
Abstract The southern elephant seal (SES; Mirounga leonina ) has a circumpolar distribution, breeding mainly on sub‐Antarctic islands and making long trips between or molting foraging areas. Most individuals from colonies in the South Shetland Islands (western Antarctic Peninsula; WAP) are distributed Specially Protected Areas (ASPA). Despite these protected habitats, pollutants can reach such remote areas far away emission sources, affecting local fauna. To assess possible mercury (Hg)...
The Atlantic spotted dolphin (Stenella frontalis) is endemic to tropical, subtropical, and warm temperate waters of the Ocean. Throughout its distribution, both geographic distance environmental variation may contribute population structure species. In this study, we follow a seascape genetics approach investigate differentiation dolphins based on large worldwide dataset relationship with marine variables. results revealed that exhibits genetic across distribution mitochondrial DNA control...
The pantropical spotted dolphin (PSD, Stenella attenuata) is the most common cetacean species observed within Agoa Sanctuary, located in Lesser Antilles, Eastern Caribbean. These dolphins are easily observable and main target of whale-watching activities along leeward coasts Guadeloupe Martinique islands. Because PSD sanctuary it considered a resident species, however, no research has been carried out to estimate its population status movement patterns between Previous unpublished work found...
Bonnethead and Caribbean sharpnose sharks frequent coastal waters, rendering them vulnerable to overexploitation, with the bonnethead shark listed as endangered by IUCN. Marine Protected Areas (MPAs) have been suggested a management strategy regulate shark-exploitation. Moreover, it’s essential identify key areas where nursery grounds (NG) adult habitats overlap prioritize conservation zones within MPAs. Along Sea, several NG identified for larger species, but little is known smaller sharks....
Sightings of pinnipeds in Colombian waters the Pacific Ocean have sporadically been reported since 1970. Despite region (CPR) not being within their typical distribution range, six pinniped species—the Galápagos fur seal (Arctocephalus galapagoensis), sea lion (Zalophus wollebaeki), South American australis), (Otaria byronia), Juan Fernández philippii), and southern elephant (Mirounga leonina)—have recorded recent times. This study presents an overall systematic review sightings strandings...
I n the western Antarctic Peninsula one of areas highest warming in southern hemisphere has been identified. To characterize this tendency, we selected Lange Glacier (LG) on King George Island, to evaluate: 1) LG surface temperature and dynamics using stakes with data loggers; 2) submerged thickness sea parameters through bathymetry (BT) 29 CTD stations front LG; 3) glacier (GF) BT a Digital Elevation Model (DEM); 4) change GF position DEM historical width; 5) Calving flux (QC). Our findings...
Entre 23 y 27 de enero 2020 se registró la presencia una ballena aleta (Balaenoptera physalus) en aguas costeras del área marina protegida Parque Nacional Natural Corales Rosario San Bernardo. Este es el primer registro un animal vivo para mar Caribe colombiano. Aunque no fue posible establecer relaciones causalidad, presente nota incluye descripción contexto ambiental oceanográfico asociado a los avistamientos. Si bien colombiano, por sus características oligotróficas, soportaría...
Abstract We studied the sperm whale Physeter macrocephalus in Colombian Caribbean by combining data from our offshore surveys of behaviour, encounter rate, group structure and density with literature. describe for first time potential distribution whales Caribbean, using sighting acoustic obtained during surveys, published information, opportunistic encounters 1988–2020. conducted on seismic vessels over 703 days 2011–2016, covering an area 68,904 km 2 . recorded 98 individuals a total 50...
The leopard seal (Hydrurga leptonyx) has a wide distribution throughout the Antarctic circumpolar region. This species solitary habits, haul out on pack ice for long period, and individuals tend to congregate in same areas during mating season. shows site fidelity reproductive sites, which may imply restricted gene flow between groups. In order conduct first assessment of genetic diversity seals waters around Danco Coast Peninsula, we amplified mitochondrial DNA Control Region (mtDNA-CR, 423...
The leopard seal (Hydrurga leptonyx) is a genetically low-studied species. In order to conduct the first genetic diversity assessment of this species in Danco Coast (Antarctic Peninsula), 423 bp mitochondrial DNA Control Region (mtDNA-CR) was sequenced from 13 blood samples collected Primavera Base (62º15’S, 58º39’W) during 2011-2012 austral summer. Our results showed high haplotype (h = 0.99), with various divergent haplotypes. findings suggest that seals could represent different...
Introduction: Small cetaceans are good bioindicators of environmental contamination; however, knowledge about their ecotoxicological status in Central America is scarce. In Panama, access to samples from wild populations determine the oceanic dolphins limited; therefore, stranding events provide an alternative for obtaining samples. April 2016, a rare mass event occurred Azuero Peninsula (Pacific coast Panama), where 60 rough-toothed (Steno bredanensis) stranded, including ten which died on...