Results 51 to 60 of about 2,346 (206)
Animals, 2022 Marine mammals play a critical ecological role as both predator and prey. They are divided into three groups that share similar adaptations to their aquatic life, but that have very different origins and life patterns: sirenians, pinnipeds, cetaceans ...
Rosario Martín-Orti +7 more
doaj +1 more source
, 2010 This book blends traditional taxonomy with genetics, for species and gender identification and for forensic testing for preventing illegal trade in marine mammal products. Updating will be an ongoing process.
Silas, E G
core
Zoo Biology, EarlyView.This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona +3 more
wiley +1 more source
The cephalopod prey of the Weddell seal, Leptonychotes weddellii, a biological sampler of the Antarctic marine ecosystem [PDF]
, 2015 Weddell seals, Leptonychotes weddellii, are important apex predators in the food web of the Antarctic marine ecosystem. However, detailed information on their trophic relationships with cephalopods is scarce.
Ceia, F. +7 more
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Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model
Integrative Zoology, EarlyView.UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang +5 more
wiley +1 more source
Catalog of Osteological Collections of Aquatic Mammals from Mexico [PDF]
, 1991 This paper compiles available information on osteological and other anatomical specimens of at least 51 species of aquatic mammals (34 extant, one recently extinct and 16 fossil) collected in Mexico between 1868 and 1990 and housed in 29 scientific ...
Vidal, Omar
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Seals, Sea Lions, and Walruses [PDF]
A classroom resource for grades 4-8 lessons on these pinnipeds. Guide is complete with background materials (for students and teacher), goals and objectives, a glossary, 9 classroom activities, and a bibliography for obtaining additional resources.
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Gas exchange and pulmonary stress variations during SCUBA and breath‐hold diving in open seawater
The Journal of Physiology, EarlyView.Abstract figure legend Healthy, trained divers were studied before, during and after diving in open seawater with different techniques. SCUBA divers (diving to 15 or 40 m with air; cycling at depth) and breath‐hold divers (BHDs; sled‐assisted dives to 15, 25 or 40 m) underwent underwater and surface arterial blood gas (ABG) sampling.
Matteo Paganini +11 more
wiley +1 more source
AnimalsThe vulnerable status of the Amazon manatee, Trichechus inunguis, indicates the need to seek measures to guarantee its conservation. In this context, the cultivation of cells in vitro is a strategy that should at least guarantee the preservation of their
Flávia dos Santos Tavares +7 more
doaj +1 more source
Boater Manatee Awareness System [PDF]
, 2002 A variety of see-in-the-dark technologies have been evaluated with the objective of adapting them to detect Florida manatee (Trichechus manatus latirostris) aggregations in specific highuse areas, such as warm water refuges in the winter time.
Keith, Edward O.
core +1 more source