Results 101 to 110 of about 478,950 (292)

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Urinary parameters of Trichechus inunguis (Mammalia, Sirenia): reference values for the Amazonian Manatee

open access: yesBrazilian Journal of Biology
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 ...
TMA. Pantoja   +3 more
doaj   +1 more source

How to remove the brain of Amazonian manatee (Trichechus inunguis) calves preserving the skull for morphological analysis [PDF]

open access: yesActa Amazonica
Although there are several studies on the skull of Amazonian manatees (Trichechus inunguis) to better understand the anatomy, physiology, and behavior of these animals, the analysis of the brain has been often neglected.
Kamilla AVELINO-DE-SOUZA   +4 more
doaj   +1 more source

Fish and macroinvertebrates in lowland drainage canals with and without grass carp [PDF]

open access: yes, 2006
Diploid grass carp (Ctenopharyngodon idella L.) were introduced to a lowland Waikato drainage canal at an initial density of 40-80 kg ha -1(83-167 fish ha -1) to control aquatic macrophytes and improve water flow.
Bannon, Henry James   +2 more
core  

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Establishment and Characterization of a Primary Fibroblast Cell Culture from the Amazonian Manatee (Trichechus inunguis)

open access: yesAnimals
The 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

Ocorrência de infecção Cryptosporidium spp. em peixe-boi marinho (Trichechus manatus) Occurrence of Cryptosporidium spp. infection in antillean manatee (Trichechus manatus)

open access: yesRevista Brasileira de Parasitologia Veterinária, 2009
A criptosporidiose constitui-se como uma zoonose que pode afetar o homem e uma ampla variedade de animais domésticos e silvestres, principalmente indivíduos imunodeficientes.
João Carlos Gomes Borges   +4 more
doaj   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

open access: yesThe Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock   +4 more
wiley   +1 more source

Deadly diving? Physiological and behavioural management of decompression stress in diving mammals [PDF]

open access: yes, 2011
© The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Proceedings of the Royal Society B Biological Sciences 279 (2012): 1041-1050, doi:10.1098/rspb.2011 ...
Weathersby, P. K.   +121 more
core   +1 more source

Segmental composition and nerve distribution of the brachial plexus in Galictis cuja

open access: yesThe Anatomical Record, EarlyView.
Abstract Galictis cuja is a neotropical mustelid with terrestrial locomotor habits, yet the anatomy of its brachial plexus has remained undescribed. This study characterizes the origin, organization, and distribution of the brachial plexus nerves in 15 adult specimens (30 antimeres).
Natan da Cruz de Carvalho   +6 more
wiley   +1 more source

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