Results 151 to 160 of about 1,118 (170)
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Seasonal Breeding in the Amazonian Manatee, Trichechus inunguis (Mammalia: Sirenia)
Biotropica, 1982exaly +2 more sources
Urinary parameters of Trichechus inunguis (Mammalia, Sirenia): reference values for the Amazonian Manatee [PDF]
Brazilian Journal of Biology, 2010 The Amazonian manatee, Trichechus inunguis (Natterer 1883) is endemic to the Amazon Basin and is currently considered a vulnerable species. In order to establish normality ranges of urinary parameters to help monitor the health of this species in captivity, chemical urinalyses were performed on twelve males and nine females of various age groups. Urine
Pantoja, TMA. +3 more
exaly +6 more sources
Hypoxia and Hypercapnia in the Respiratory Control of the Amazonian Manatee (Trichechus inunguis)
Physiological Zoology, 1980The steady-state responses to hypoxia and hypercapnia were studied in freely diving Amazonian manatees (Trichechus inunguis). Breathing room air, the manatees had an end-dive alveolar O₂ Of 60 mm Hg and an alveolar CO₂ of 71 mm Hg. Minute ventilation increased linearly with inspired CO₂ during the hypercapnic breathing and the animals maintained a ...
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Heart rates and gas exchange in the Amazonian Manatee (Trichechus inunguis) in relation to diving
Journal of Comparative Physiology B, 1986Unrestrained Amazonian manatees (Trichechus inunguis) maintained a constant heart rate during diving and exhibited a slight tachycardia during breathing. 'Forcing' the manatees to dive caused a marked bradycardia. They exhibited a more pronounced tachycardia during breathing after 'forced' dives and hyperventilated during recovery dives.
Gallivan, Gordon James +2 more
openaire +3 more sources
Apparent Dry-Season Fasting in Amazonian Manatees (Mammalia: Sirenia)
Biotropica, 1983Amazonian manatees (Trichechus inunguis), restricted to deep water areas in the larger lakes in the central Amazon during the dry season, do not have any obvious food sources until water levels rise between 1-2 m. Evidence from Lago Amana suggests almost seven months of fasting.
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Endocrine monitoring of the ovarian cycle in captive female Amazonian manatees (Trichechus inunguis)
Animal Reproduction Science, 2013The Amazonian manatee (Trichechus inunguis; Mammalia: Sirenia), a threatened aquatic mammal endemic to the Amazon basin, is the only sirenian that lives exclusively in fresh water. Information about the reproductive endocrinology of the Amazonian manatee is scarce; therefore, the aim of this study was to monitor salivary progesterone and estradiol ...
Amaral, Rodrigo S. +4 more
openaire +3 more sources
Journal of Zoo and Wildlife Medicine, 2011
Infections by Cryptosporidium spp. in aquatic mammals is a major concern due to the possibility of the waterborne transmission of oocysts. The aim of the present study was to report the occurrence of Cryptosporidium spp. in Antillean manatees (Trichechus manatus) and Amazonian manatees (Trichechus inunguis) from Brazil. Fecal samples were collected and
Joāo Carlos Gomes, Borges +3 more
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Infections by Cryptosporidium spp. in aquatic mammals is a major concern due to the possibility of the waterborne transmission of oocysts. The aim of the present study was to report the occurrence of Cryptosporidium spp. in Antillean manatees (Trichechus manatus) and Amazonian manatees (Trichechus inunguis) from Brazil. Fecal samples were collected and
Joāo Carlos Gomes, Borges +3 more
openaire +2 more sources
The implications of turning behaviour performed by Amazonian manatees after release into the wild
Journal of Ethology, 2011Sirenians have dichromatic colour vision and tactile hairs but have not developed underwater echolocation. Amazonian manatees (Trichechus inunguis) live in turbid water and it has been unclear how they understand their surroundings. In this study, we recorded the 3D movements of two captive-raised Amazonian manatees.
Kikuchi, Mumi +4 more
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Journal of Zoo and Wildlife Medicine
Evaluating renal function is essential for managing captive wild animals, particularly threatened species like the Amazonian manatee (Trichechus inunguis) in rehabilitation and prerelease programs. A series of urine diagnostic tests, such as gross appearance, semiquantitative chemical analyses, microscopic review of sediments, and quantitative analyses
Daniela M D, de Mello +2 more
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Evaluating renal function is essential for managing captive wild animals, particularly threatened species like the Amazonian manatee (Trichechus inunguis) in rehabilitation and prerelease programs. A series of urine diagnostic tests, such as gross appearance, semiquantitative chemical analyses, microscopic review of sediments, and quantitative analyses
Daniela M D, de Mello +2 more
openaire +2 more sources
Artificial feeding for unwearied Amazonian manatees
International Zoo Yearbook, 1982Best, Robin C. +3 more
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