Results 81 to 90 of about 6,154 (213)

Ictiofauna dulceacuícola y estuarina de la cuenca del golfo de Paria, Venezuela: composición y relaciones biogeográficas con la cuenca del Orinoco

open access: yesBiota Colombiana, 2010
The Paria Gulf Basin ichthyofauna comprises 218 species arranged in 14 orders and 50 families. Among these, 155 species are considered strictly freshwater and 63 species are euryhaline.
Carlos A. Lasso   +2 more
doaj   +1 more source

Paleocene orthophragminids from the Lakadong Limestone, Mawmluh Quarry section, Meghalaya (Shillong, NE India). Implications for the regional geology and paleobiogeography [PDF]

open access: yes, 2018
The late Paleocene orthophragminids, hitherto poorly known from the Himalayan foreland basins, are studied from the Lakadong Limestone in Meghalaya, northeastern India, in order to establish a systematic, biostratigraphic, and paleobiogeographical ...
Barattolo, Filippo   +6 more
core   +1 more source

Pseudobrânquia do guaru Poecilia reticulata (Peter, 1859): análise estrutural, morfométrica e histoquímica para detecção de glicoconjugados

open access: yesPesquisa Veterinária Brasileira, 2013
A morfologia, os parâmetros citomorfométricos e os glicoconjugados presentes na pseudobrânquia de guaru, Poecilia reticulata Peter, 1859 (Cyprinodontiformes: Poeciliidae), foram investigados por microscopia de luz acoplada ao sistema de captura e análise
Thiago L. Rocha   +2 more
doaj   +1 more source

Fish Biodiversity in the Upstream of the Umban Sari River, Pekanbaru, Riau Province [PDF]

open access: yes, 2016
The upstream the Umban Sari River was inhabit by numerous fish species. Information on these fish, however, is almost none. To understand the biodiversity of fish in that river, a study has been conducted from September to October 2015.
Efawani, E. (Efawani)   +2 more
core  

Look before you leap: Visual navigation and terrestrial locomotion of the intertidal killifish Fundulus heteroclitus [PDF]

open access: yes, 2016
Mummichogs (Fundulus heteroclitus; Cyprinodontiformes) are intertidal killifish that can breathe air and locomote on land. Our goals were to characterize the terrestrial locomotion of mummichogs and determine their method of navigation towards water in a
Bressman, Noah
core   +1 more source

A new species of Profundulus (Cyprinodontiformes: Profundulidae) from southeastern Mexico [PDF]

open access: yesNeotropical Ichthyology
A new species of Profundulus is described from several localities in the Grijalva river basin and rivers of the Isthmus of Tehuantepec, in southern Mexico, using a combination of morphological and molecular data.
Sara Elizabeth Domínguez-Cisneros   +3 more
doaj   +1 more source

Fish, Corumbataí and Jacaré-Pepira river basins, São Paulo State, Brazil [PDF]

open access: yes, 2006
Fish were studied in two river basins (Corumbataí and Jacaré-Pepira) subjected to strong human pressure, in the interior of the State of São Paulo, southeastern Brazil.
Braga, F. M. S., Gomiero, L. M.
core  

Adjustments of fishes to specific conditions in extreme habitats [PDF]

open access: yes, 2010
Ribe su najbrojniji kralješnjaci. Nalazimo ih u dubokom moru gdje nema svjetla i gdje je enorman tlak. U polarnim vodama gdje je temperatura vode ispod nula °C.
Špelić, Ivan
core   +2 more sources

Parí­¢metros populacionais de poecilí­­neo em riachos sul-mato-grossenses, Brasil

open access: yesBoletim do Instituto de Pesca, 2018
Este trabalho objetivou descrever e comparar a estrutura das populações de Phalloceros harpagos nos riachos Perobão e Água Boa, MS, através de parí­¢metros populacionais quantitativos.
Angélica MENDONÇA   +5 more
doaj  

Differential expression of conserved germ line markers and delayed segregation of male and female primordial germ cells in a hermaphrodite, the leech helobdella. [PDF]

open access: yes, 2013
In sexually reproducing animals, primordial germ cells (PGCs) are often set aside early in embryogenesis, a strategy that minimizes the risk of genomic damage associated with replication and mitosis during the cell cycle.
Cho, Sung-Jin   +2 more
core   +2 more sources

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