Results 111 to 120 of about 1,800 (195)

The diet of big-scale sand smelt Atherina boyeri caspia (Risso, 1810) in the southeastern coast of the Caspian Sea [PDF]

open access: yes, 2015
Big-scale sand smelt is one of the fishes with high ecological value, which consume by fishes such as sturgeon in the Caspian Sea. In this study, 191 samples of Big-scale sand smelt from southeast coast of the Caspian Sea were collected seasonally from ...
Amri Sahebi, A., Fazli, H., Taghavi, H.
core  

Biodiversity of the upper deltaic complex of the Paraná River [PDF]

open access: yes, 2008
En este trabajo se analiza la riqueza y distribución de la flora vascular y fauna de vertebrados de la región superior del Complejo Deltaico del Río Paraná.
Aceñolaza, Pablo Gilberto   +7 more
core   +1 more source

Application of the physical habitat simulation for fish species to assess environmental flows in an Atlantic Forest Stream in South-eastern Brazil

open access: yesNeotropical Ichthyology
The physical habitat simulation sub-routine of the Instream Flow Incremental Methodology (IFIM) uses hydraulic modeling and suitability indices of target fish species to predict how differences in-stream flows affect the microhabitat occupation by fish ...
Marcus Rodrigues da Costa   +5 more
doaj   +1 more source

Use of eugenol as an anaesthetic for Geophagus brasiliensis juveniles

open access: yesBoletim do Instituto de Pesca, 2015
Andréa Ferretto ROCHA   +4 more
openaire   +1 more source

REPRODUÇÃO E ALIMENTAÇÃO DE ALGUMAS ESPÉCIES DE PEIXES DA LAGOA RODRIGO DE FREITAS, RIO DE JANEIRO [PDF]

open access: yes, 2017
O artigo tem como objetivo analisar os aspectos reprodutivos de Poecilia vivipara; Jenynsia multidentata;Phalloptychus januarius; composição e distribuição espacial do ictioplâncton; aspectos da alimentação de Jenynsia multidentata e Geophagus ...
Andreata, José V.
core   +1 more source

[The role of Ancyrocephalinae (Monogenea: Dactylogyridae), parasite of Geophagus brasiliensis (Pisces: Cichlidae), as an environmental indicator].

open access: yesRevista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria, 2009
The variations in the parasite population of fishes may be indicative of environmental alterations. With the aim of studying the variation of the parasitism by Ancyrocephalinae in Geophagus brasiliensis, two reservoirs of distinct trophic characterizations (Juqueri - eutrophic and Jaguari - oligomesotrophic) were compared.
Rubens Riscala, Madi   +1 more
openaire   +1 more source

ICTIOFAUNA DA LAGOA RODRIGO DE FREITAS, ESTADO DO RIO DE JANEIRO: COMPOSIÇÃO E ASPECTOS ECOLÓGICOS [PDF]

open access: yes, 2017
No presente trabalho, foram realizadas coletas mensais de peixes, no período de março de 1991 a dezembro de 1996, em cinco áreas na Lagoa Rodrigo de Freitas. Foram utilizados quatro instrumentos de captura com o mesmo esforço para cada área.
Andreata, José V.
core   +1 more source

Exposure of adult zebrafish (Danio rerio) to SARS-CoV-2 at predicted environmentally relevant concentrations: Outspreading warns about ecotoxicological risks to freshwater fish.

open access: yesSci Total Environ, 2023
Luz TMD   +12 more
europepmc   +1 more source

Isotopic variation of fishes in freshwater and estuarine zones of a large subtropical coastal lagoon [PDF]

open access: yes, 2007
We used stable C and N isotope ratios of tissues from 29 fish species from a large subtropical lagoon in southern Brazil to examine spatial variability in isotopic composition and vertical trophic structure across freshwater and estuarine habitats ...
Garcia, Alexandre Miranda   +3 more
core  

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