Results 71 to 80 of about 2,370 (178)

Fish fauna from Río Pilcomayo National Park and Ramsar Site and its surroundings, Formosa, Argentina [PDF]

open access: yes, 2014
The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the WetChaco plains of Northern Argentina is presented here.
Baigún, Claudio Rafael M.   +5 more
core   +4 more sources

Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA

open access: yesEnvironmental DNA, Volume 6, Issue 1, January–February 2024.
We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza   +4 more
wiley   +1 more source

Alimentação dos peixes detritívoros da Baía Tuiuiú, rio Paraguai, Pantanal de Mato Grosso do Sul, Brasil. [PDF]

open access: yes, 2012
Foram analisadas as dietas dos peixes detritívoros da baía Tuiuiú, meandro abandonado do rio Paraguai, próximo a Corumbá, Mato Grosso do Sul. Os peixes detritívoros apresentam estratégias específicas para o consumo do detrito orgânico existente na baía ...
ALMEIDA, I. M. de, RESENDE, E. K. de
core  

Development stages of the reproductive tract of male of Panulirus echinatus Smith (Decapoda: Palinuridae) [PDF]

open access: yes, 2008
Esta pesquisa caracteriza os estádios de desenvolvimento dos testículos e canais deferentes da lagosta Panulirus echinatus Smith, 1869 a partir da relação entre seus aspectos macroscópicos, microscópicos e a relação gonadossomática (RGS).
BARRETO, Aline do V., KATSURAGAWA, Mario
core   +2 more sources

Systematic review of myxozoan occurrence in Brazilian fish

open access: yesFrontiers in Marine Science
A systematic review was carried out to document the occurrence of myxozoan parasites in farmed and wild teleost fish in Brazil, considering publications made between 1969 and April 2024.
Rafaela Franco Araújo   +6 more
doaj   +1 more source

Ichthyofaunistic composition of the Quilombo river, tributary of the Mogi-Guaçu river, upper Paraná river basin, southeastern Brazil [PDF]

open access: yes
Um estudo sobre a composição ictiofaunística do rio Quilombo foi realizado com o intuito de identificar quais espécies de peixes habitam a bacia, com que freqüência tais espécies são encontradas e verificar variações na distribuição longitudinal desta ...
APONE, Fernando   +2 more
core   +1 more source

Cryopreservation of Embryos and Oocytes of South American Fish Species [PDF]

open access: yes, 2014
Non
Digmayer, M.   +5 more
core   +1 more source

Phytoplankton and periphyton in ponds with Nile tilapia (Oreochromis niloticus) and bocachico (Prochilodus magdalenae) Fitoplancton y perifiton en estanques con tilapia nilótica (Oreochromis niloticus) y bocachico (Prochilodus magdalenae) Fitoplâncton e perifiton em viveiros com tilapia nilotica (Oreochromis niloticus) e bocachico (Prochilodus magdalenae)

open access: yesRevista Colombiana de Ciencias Pecuarias, 2012
Background: phytoplankton is considered the most important community in the aquatic food chain. As the basis of the food chain, periphyton offers possibilities for further optimization of extensive aquaculture ponds, although in-depth research on its ...
José J García Gonzalez   +2 more
doaj  

Predação de pós-larvas de curimba (Prochilodus lineatus, Valenciennes, 1836) por larvas de Odonata (Pantala, Fabricius, 1798) em diferentes tamanhos - DOI: 10.4025/actascibiolsci.v25i1.2105

open access: yesActa Scientiarum: Biological Sciences, 2008
Este experimento teve por objetivo avaliar a predação de larvas de Odonata (Pantala sp.) em diferentes fases de desenvolvimento sobre pós-larvas de curimba, Prochilodus lineatus (Characiformes, Prochilodontidae).
Claudemir Martins Soares   +2 more
doaj   +1 more source

Structural and ultrastructural analysis of embryonic development ofProchilodus lineatus(Valenciennes, 1836) (Characiforme; Prochilodontidae) [PDF]

open access: yesZygote, 2006
SummaryThis survey was performed to characterize the embryogenesis ofProchilodus lineatus. Seven stages of embryo development were identified – zygote, cleavage, blastula, gastrula, segmentation, larval and hatching – after a period of incubation of 22 h (24 °C) or 14 h (28 °C).
Ninhaus-Silveira, Alexandre   +2 more
openaire   +3 more sources

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