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Ascaridoid nematodes of Sirenians—the Heterocheilinae redefined
Journal of Helminthology, 1980AbstractThe 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.
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Human Interactions with Sirenians (Manatees and Dugongs)
2017There are three extant sirenian species of the Trichechidae family and one living Dugongidae family member. Given their close ties to coastal and often urbanized habitats, sirenians are exposed to many types of anthropogenic activities that result in challenges to their well-being, poor health, and even death.
Robert K. Bonde, Mark Flint
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Sirenian Health and Well-Being in Managed Care
2017The recorded history of Sirenia species in managed care is short and quite variable with many areas of early efforts poorly documented with anecdotal material. The three extant Sirenia species of the Trichechidae family and the one extant species of the Dugongidae family are all listed as threatened by the IUCN (International Union for the Conservation
Michael T. Walsh, David J. Blyde
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Sirenians in West Coast Marine Stratigraphy: ABSTRACT
AAPG Bulletin, 1973Sirenians are fairly common as fossils in many late Tertiary nearshore marine deposits of the West Coast. The general pattern of their evolution in the North Pacific from early Miocene to recent times is now known. With the exception of the early Miocene forms, all the known species are stratigraphically successive and seem to belong to a single ...
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Conservation of marine mammals: pinnipeds and sirenians
2020Marine mammals are a broad group of mammals adapted to the aquatic life which depend on the ocean for most or all their life needs. Pinnipeds are highly specialized aquatic carnivores that live in a variety of marine habitats, including freshwater for some of them.
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