Results 101 to 110 of about 1,336 (204)

Identifying influential neighbors in animal flocking.

open access: yesPLoS Computational Biology, 2017
Schools of fish and flocks of birds can move together in synchrony and decide on new directions of movement in a seamless way. This is possible because group members constantly share directional information with their neighbors.
Li Jiang   +7 more
doaj   +1 more source

Aplicação da biologia molecular em programas de conservação de recursos pesqueiros. [PDF]

open access: yes, 2013
Estudos genéticos em peixes; Marcadores moleculares; Eletroforese de proteínas; Seqüências de DNA como marcadores; Polimorfismo de comprimento de fragmentos de restrição (Restriction Fragment Length Polymorphism - RFLP); Polimorfismo de DNA amplificado ...
MARQUES, D. K. S.
core   +1 more source

Hyphessobrycon ocasoensis sp. n. (Teleostei, Characidae) una nueva especie para el Alto Cauca, Colombia [PDF]

open access: yes, 2008
Hyphessobrycon ocasoensis n. sp. (Teleostei, Characidae) a new species from the Alto Cauca, Colombia Hyphessobrycon ocasoensis n. sp. (Characiformes, Characidae) from heterorhabdus group (Gery, 1977) is described from the upper Cauca River in Colombia.
García-Alzate, C. A.   +1 more
core  

Trophic ecology of Hemigrammus marginatus Ellis, 1911 (Characiformes, Characidae) in a conserved tropical stream

open access: yesBrazilian Journal of Biology
The trophic ecology of ichthyofauna in a stream can be related to the presence or absence of riparian and aquatic vegetation, and mainly resource availability.
E. N. Fragoso-Moura   +3 more
doaj   +1 more source

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA ESTADO DE CONSERVACION DE PECES CHARACIDAE (PISCES: CHARACIFORMES) EN UN AREA DE LA CUENCA DEL PLATA, ARGENTINA

open access: yesGayana, 2007
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation.
Marcelo A Zayas, Elly Cordiviola
doaj  

Consequências da monocultura de braquiárias e da invasão de cambarazais e algodoais sobre a ictiofauna de alagados no Pantanal. [PDF]

open access: yes, 2012
As áreas inundáveis do Pantanal são importantes ambientes de alimentação, crescimento e desova para a ictiofauna. A vegetação das áreas inundáveis passa por fortes mudanças, em parte causadas por oscilações naturais do nível hidrológico, em parte ...
RESENDE, E. K. de, ROSA, F. R. da
core  

Zonation longitudinale des peuplements ichtyques avant mise en eau de la retenue de Petit-Saut (Guyane française) [PDF]

open access: yes, 1994
La composition et la structure des peuplements ichthyques du fleuve Sinnamary en Guyane française sont étudiées en fonction des grands types d'unités morphologiques (biefs, petits affluents, rapides) et de leur position dans le gradient amont-aval. Cette
Lauzanne, Laurent, Tito de Morais, Luis
core  

Hemigrammus ora Zarske, Le Bail, Gery 2006

open access: yes, 2018
Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on page 28, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record ...
Ota, Renata Rúbia   +3 more
openaire   +1 more source

Zonation longitudinale du peuplement ichtyque du fleuve Sinnamary (Guyane Française) [PDF]

open access: yes, 1988
Le Sinnamary est un fleuve de moyenne importance (bassin de 6565 km2) de la Guyane Française. A l'aide de divers critères d'ordre géologique, pédologique, hydrologique et phytosociologique, nous avons pu diviser le fleuve en 3 zones distinctes : la ...
Boujard, T., Rojas-Beltran, R.
core  

Liste commentée des poissons de l'Amazonie bolivienne [PDF]

open access: yes, 1991
Après une brève présentation de l'Amazonie bolivienne, des milieux prospectés, de l'effort de pêche, des travaux anciens et récents, les auteurs founissent une liste commentée des poissons rencontrés.
Lauzanne, Laurent   +2 more
core  

Home - About - Disclaimer - Privacy