A5029787722- Marine animal studies overview
- Marine and fisheries research
- Arctic and Antarctic ice dynamics
- Cephalopods and Marine Biology
- Marine and coastal plant biology
- Underwater Acoustics Research
- Isotope Analysis in Ecology
- Turtle Biology and Conservation
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Marine and environmental studies
- Fish Ecology and Management Studies
- Animal Vocal Communication and Behavior
- Marine Bivalve and Aquaculture Studies
Center for Scientific Research and Higher Education at Ensenada
2009-2024
Consejo Nacional de Humanidades, Ciencias y Tecnologías
2017-2024
Universidad Autónoma de Baja California Sur
2022
Universidad Nacional Autónoma de México
2013-2015
Instituto Politécnico Nacional
2013
Universidad Univer
2006
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Abstract The population growth of top predators depends largely on environmental conditions suitable for aggregating sufficient and high-quality prey. We reconstructed numerically the size a resident California sea lions in Gulf during 1978–2019 its relation with multi-decadal surface temperature anomalies. This is first examination one major predators. A three-decade sustained warming explained population’s trend accounting 92% variance, including 65% decline between 1991 2019. Long-term...
Step horizontal gradients of sea surface temperature (SST) occur around upwelling cores, eddies, meanders, current boundaries, island-effect mixing areas, among many other oceanographic features. These thermally structured areas provide ideal turbulence for phytoplankton growth and biomass aggregation, triggering complex abundant food webs, in turn exploited by populations marine megafauna fisheries. How the distribution degree this heterogeneity has varied at climate-change scales is...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 487:245-260 (2013) - DOI: https://doi.org/10.3354/meps10217 Role of environmental seasonality in turnover a cetacean community southwestern Gulf California Mario A. Pardo1,5,*, Norman Silverberg1, Diane Gendron1, Emilio Beier2, Daniel M. Palacios3,4 1Centro Interdisciplinario de Ciencias Marinas, Instituto...
We inferred the population densities of blue whales (Balaenoptera musculus) and short-beaked common dolphins (Delphinus delphis) in Northeast Pacific Ocean as functions water-column's physical structure by implementing hierarchical models a Bayesian framework. This approach allowed us to propagate uncertainty field observations into inference species-habitat relationships generate spatially explicit density predictions with reduced effects sampling heterogeneity. Our hypothesis was that...
Fin whales in the Gulf of California constitute a resident population genetically isolated from rest North Pacific Ocean. Its small size and scarce information available about its dynamics semi-enclosed sea underline importance conducting studies reproduction. Given monsoonal regime that dominates oceanographic habitat this region, we hypothesized seasonality population's reproductive activity. To test this, validated assayed testosterone progesterone blubber biopsies free-ranging...
Abstract Coastal habitats are crucial to pinnipeds for resting, molting, and reproduction. We examined terrestrial habitat preferences of four pinniped species (California sea lion, Guadalupe fur seal, harbor northern elephant seal) on the islands off western coast Baja California Peninsula, Mexico. Boat‐based surveys were conducted while circumnavigating 10 or archipelagos during summer winter in 2009 2010. Habitat selection was inferred based generalized linear models using animal counts...
Migration is a complex behavior that has evolved in multiple taxonomic groups as means of accessing productive foraging grounds and environmentally stable areas suitable for reproduction. For migratory whales forage throughout the year because their high energetic demands, changes abundance prey different along route(s) can have serious implications individual fitness population viability. Thus, identifying regions these species use to breed while evaluating plasticity at level provide key...
Yellowfin tuna, Thunnus albacares, represents an important component of commercial and recreational fisheries in the Gulf Mexico (GoM). We investigated influence environmental conditions on spatiotemporal distribution yellowfin tuna using fisheries' catch data spanning 2012-2019 within Mexican waters. implemented hierarchical Bayesian regression models with spatial temporal random effects fixed several covariates to predict habitat suitability (HS) for species. The best model included...
Abstract Each year, whale sharks ( Rhincodon typus ) aggregate in the northern Gulf of California at Bahia de los Angeles, a small coastal village that recently developed shark swimming as economic activity during summer and autumn. Since number animals using bay fluctuates annually, we aimed to predict it 1 month before each season. We based our modelling approach on hypothesis interannual warming conditions would spatially restrict habitats, triggering larger aggregations areas remain...
Abstract We evaluated the effects of sea surface temperature anomalies (SSTA) in southern California Current Ecosystem on annual Guadalupe fur seal (Arctocephalus townsendi) pup production, a species recovering from near extinction. Pup counts 1991 to 1993 and 2006 2019 were used estimate deviations long-term trend as proxy for population's reproductive success. estimated interannual SSTA subtraction linear spanning 1991–2019 778,000 km2 area, which represents primary foraging range adult...
Highly mobile odontocetes need habitats with environmental conditions the potential of aggregating enough and high-quality prey, to maximize foraging success. Until now, characterization those was in terms physical biological indicators high production, capable attracting sustaining prey. Nevertheless, there has been no approach quantifying effects a biophysical characteristic ocean proven on vertical distribution prey for cetaceans: The oxygen minimum zone (OMZ) depth. In northern branch...
Abstract This study is the first assessment on how short‐finned pilot whales ( Globicephala macrorhynchus ) move within Gulf of Mexico. In April 2018, seven adult animals were tagged using location‐only satellite transmitters in south‐western (18°59′N and 95°19′W). When tagged, all a medium‐size aggregation that split after week followed two routes, indicating initial was consisted at least social units. Regardless route, moved low travel rate (mean = 3.4 km/hr; 50% IC: 1.5–4.8) continental...
Abstract Background The population growth of top predators depends largely on environmental conditions suitable for aggregating sufficient and high-quality prey. We reconstructed numerically the size dynamics a resident California sea lions in Gulf during 1978 – 2019, its relation with gulf’s multi-decadal surface temperature trend. This are first long-term insights to oceanic environment trend one major predators. Results Our results indicate that three-decade sustained warming explains...