Results 61 to 70 of about 970 (191)

Drone photogrammetry reveals contrasting body conditions of dugongs across the Indo‐Pacific

open access: yesRemote Sensing in Ecology and Conservation
The monitoring of body condition, reflecting the state of individuals' energetic reserves, can provide early warning signals of population decline, facilitating prompt conservation actions.
Camille Goudalier   +16 more
doaj   +1 more source

First Description of a Satellite DNA in Manatees’ Centromeric Regions

open access: yesFrontiers in Genetics, 2021
Trichechus manatus and Trichechus inunguis are the two Sirenia species that occur in the Americas. Despite their increasing extinction risk, many aspects of their biology remain understudied, including the repetitive DNA fraction of their genomes.
Mirela Pelizaro Valeri   +7 more
doaj   +1 more source

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

open access: yesZoo Biology, Volume 45, Issue 4, Page 435-443, July/August 2026.
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

Comparison of two histological techniques for age determination in small cetaceans [PDF]

open access: yes, 2009
Peer ...
Learmonth, Jennifer   +18 more
core   +1 more source

Multi‐Omics Unveils the Dual‐Life of the Aquatic Plant Potamogeton nodosus

open access: yesPhysiologia Plantarum, Volume 178, Issue 4, July/August 2026.
ABSTRACT Heterophylly, characterized by distinct leaf morphologies, is an adaptive strategy evolved by some aquatic plants to cope with the contrasting environments in which they grow. It is shaped by environmental factors and by hormones, particularly abscisic and gibberellic acids.
Thomas Horst Berthelier   +8 more
wiley   +1 more source

American manatees adjust their diet composition and trophic niche breadth across different coastal regions

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (Trichechus manatus), a large, endangered herbivore, inhabits marine, estuarine, and freshwater environments.
Camila Carvalho de Carvalho   +13 more
wiley   +1 more source

Marine mammal bycatch in gillnet and other entangling net fisheries, 1990 to 2011

open access: yesEndangered Species Research, 2013
Since the 1970s the role of fishery bycatch as a factor reducing, or limiting the recovery of, marine mammal populations has been increasingly recognized.
RR Reeves, K McClellan, TB Werner
doaj   +1 more source

Jaw anatomy of Potamogale velox (Tenrecidae, Afrotheria) with a focus on cranial arteries and the coronoid canal in mammals [PDF]

open access: yesPeerJ, 2016
Afrotheria is a strongly supported clade within placental mammals, but morphological synapomorphies for the entire group have only recently come to light.
Robert J. Brocklehurst   +3 more
doaj   +2 more sources

First Report of Marinomyxa spp. (Rhizaria: Endomyxa: Phytomyxea) Infection in Seagrasses Halophila beccarii and Halophila decipiens: Supporting Evidence for a Long‐Standing Symbiosis

open access: yesPlant Pathology, Volume 75, Issue 3, May–June 2026.
A survey of phytomyxid parasites in seagrasses of the genus Halophila reveals previously unrecognised diversity and a widespread presence of Marinomyxa within Halophila meadows, supporting a tight co‐evolutionary relationship between the two genera. ABSTRACT Marinomyxa is a genus of obligate intracellular parasitic protists known to infect tropical ...
Viktorie Kolátková   +3 more
wiley   +1 more source

Taxonomy of Marine Mammals [PDF]

open access: yes, 2022
Marine mammals are warm-blooded aquatic vertebrates belonging to the class Mammalia, breathe air through lungs, locomotion by fins & flippers and produce milk to nurse their young ones.
Kuberan, G   +4 more
core   +1 more source

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