Results 141 to 150 of about 1,175 (199)

A Comprehensive Review of Endoparasite Infections in Marine Fish: Prevalence, Infection Factors, and Dominant Species. [PDF]

Curr Microbiol
Ringgit G, Lim LS, Liew HJ, Amrillah AM, Lal MTM.   +4 more
europepmc   +1 more source

Historical ecology reveals the "surprising" direction and extent of shifting baselines for the Florida manatee (Trichechus manatus latirostis). [PDF]

PLoS One
Pluckhahn TJ, Thulman DK.
europepmc   +1 more source

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Evaluation of Cetacean and Sirenian Cytologic Samples

Veterinary Clinics of North America - Exotic Animal Practice, 2007
Cytology is a fundamental part of marine mammal veterinary medicine that is involved in preventive medicine programs in captive animals and in the health assessment of wild populations. Marine mammals often exhibit few clinical signs of disease; thus, the cost-effective and widely accessible nature of cytologic sampling renders it one of the most ...
Juli D Goldstein, Dvm
exaly   +3 more sources

Sirenian (manatees and dugongs) reproductive endocrinology

General and Comparative Endocrinology
Reproductive hormones are essential to mating systems, behavior, fertility, gestation, parturition, and lactation in mammals and understanding the role of hormones in these processes is essential for species conservation. Sirenia is a unique order of marine mammals that include manatees, dugongs, and the extinct Steller's sea cow.
Christopher J Martyniuk
exaly   +3 more sources

The earliest known fully quadrupedal sirenian

Nature, 2001
Modern seacows (manatees and dugongs; Mammalia, Sirenia) are completely aquatic, with flipperlike forelimbs and no hindlimbs. Here I describe Eocene fossils from Jamaica that represent nearly the entire skeleton of a new genus and species of sirenian--the most primitive for which extensive postcranial remains are known. This animal was fully capable of
exaly   +3 more sources

Sirenian and Other Species

2008
Thomas A. Jefferson, Marc A. Webber, Robert L. Pitman   +2 more
exaly   +2 more sources

Hearing in Pinnipeds and Sirenians

2001
Pinnipeds and sirenians have not been subjects of as extensive investigation of hearing abilities and mechanisms as cetaceans have been. The studies performed on these animals did not reveal extreme hearing capabilities or echolocation. Nevertheless, their hearing system presents a great opportunity for understanding the various ways they have adapted ...
Alexander Ya. Supin, Vladimir V. Popov, Alla M. Mass   +2 more
openaire   +1 more source

The Role of Sirenians in Aquatic Ecosystems

2012
The role of sirenians in aquatic ecosystems is largely a function of their feeding ecology. Sirenians are large herbivorous aquatic mammals that often congregate and, being mammals, have high energetic requirements relative to other marine herbivores.
Aragones, Lemnuel V., Lawler, Ivan, Marsh, Helene, Domning, Daryl, Hodgson, Amanda   +4 more
openaire   +1 more source

Sirenians between myth and science

Nymphaea. Folia Naturae Biharie
Sirenians (also known as sea-cows), as we know them today, represent an order of fully aquatic herbivorous mammals, with a rich fossil record that spans from the Paleogene to the Holocene. In fact, sirenians are the only marine full herbivorous mammals, the others having different diets.
László Veress, Vlad Aurel Codrea
openaire   +1 more source

Ascaridoid nematodes of Sirenians—the Heterocheilinae redefined

Journal of Helminthology, 1980
AbstractThe two ascaridoids of sirenians, Heterocheilus tunicatus Diesing, 1839, and Paradujardinia halicoris (Owen, 1833), are redescribed. A basic affinity between the two species is indicated in the bilateral structure of the excretory system, the globular ventriculus, long intestinal caecum, and the form of the male tail.
openaire   +1 more source