Results 21 to 30 of about 599 (183)

Larval development of Plagioscion squamosissimus (Heckel) (Perciformes, Sciaenidae) of Itaipu reservoir (Paraná river, Brazil) [PDF]

open access: yesRevista Brasileira De Zoologia, 1997
The aim of the present study was to characterize the larval development of Plagioscion squamosissimus (Heckel, 1840) morphometrically, collected at Itaipu reservoir from March 1988 to April 1990. It was obtained the samples monthly, with a conic-cylindrical plankton net with 0.5mm mesh. The morphological description of the larvae of P.
Keshiyu Nakatani   +2 more
exaly   +4 more sources

Detection of Anisakidae larvae parasitizing Plagioscion squamosissimus and Pellona castelnaeana in the State of Pará, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2017
  Five specimens of Plagioscion squamosissimus from Xingu River and ten specimens of Pellona castelnaeana from Mosqueiro Island, both in the State of Pará, Brazil, were examined to investigate the presence of anisakid nematodes, due to their zoonotic ...
Núbia Lorena Farias Rabelo   +4 more
doaj   +3 more sources

Ocorrência de Diplostomum sp Nordmann, 1832 (Digenea: Diplostomatidae) em Plagioscion squamosissimus Heckel, 1840, proveniente do Reservatório de Volta Grande, MG, Brasil

open access: yesActa Scientiarum: Biological Sciences, 2008
Este trabalho demonstrou a presença de Diplostomum sp (Digenea) em corvinas (Plagioscion squamosissimus Heckel, 1840) do reservatório de Volta Grande (MG), avaliando, em condições naturais, a ocorrência do parasito, a intensidade de infestação e a ...
Maurício Laterça Martins   +3 more
doaj   +2 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures. [PDF]

open access: yesJ Fish Biol
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
Freitas FL   +4 more
europepmc   +2 more sources

A comparative study of the growth of the postlarval and juvenile pescadas Plagioscion squamosissimus (HECKEL) and Plagioscion monti (SOARES) in a white water lake of the Central Amazon

open access: yes, 1983
The age of 320 specimen of Plagioscion monti and 280 specimen or P. squamosissimus was determined by means of daily rings on the otoliths. The length of the fish were in the range of 0.4 - 15 cm. Within this size interval, the increase in length can be assumed to be linear, and the increase of weight to be an exponential function.
Worthmann, H.
openaire   +2 more sources

Establishing new grid-size-dependent attributes to rank areas of endemism for conservation priorities. [PDF]

open access: yesCladistics
Abstract Delineating Areas of Endemism (AEs) is crucial for identifying priority areas for biodiversity conservation in a spatial planning framework. Endemicity Analysis in the NDM/VNDM software is one of the primary methodologies for its delineation.
Frota A, da Graça WJ.
europepmc   +2 more sources

Relações tróficas entre Acestrorhynchus britskii (nativa) e Plagioscion squamosissimus (introduzida) em sistema de reservatórios em cascata

open access: yesBoletim do Instituto de Pesca, 2018
O objetivo deste trabalho foi verificar possí­­veis diferenças na alimentação de Acestrorhynchus britskii e Plagioscion squamosissimus nos reservatórios em cascata do rio São Francisco.
Aline Alves Ferreira da ROCHA   +3 more
doaj   +2 more sources

The introduced Arapaima gigas in the Bolivian Amazon: Trophic position and isotopic niche overlap with native species

open access: yesEcology of Freshwater Fish, Volume 32, Issue 4, Page 926-937, October 2023., 2023
Abstract Non‐native fish species may generate major ecological impacts on native assemblages. This study aims to assess the potential impact of the introduced Arapaima gigas on native fish assemblages in two oxbow lakes of the Bolivian Amazon. Stable isotope data were used to determine trophic position (TP) and isotopic niche overlap, to evaluate ...
Danny Rejas   +3 more
wiley   +1 more source

Fisheries in a border area of the Moxos Lowlands (Bolivia) after invasion of Arapaima gigas

open access: yesAquaculture, Fish and Fisheries, Volume 3, Issue 2, Page 196-210, April 2023., 2023
We characterized fisheries in the area of the port city of Riberalta (upper Madeira River basin) and evaluated the contribution of an invasive species (Arapaima gigas) to the landings. A. gigas represented 57.6% of the overall economic value of fish in the region.
Gabriela Rico Lopez   +4 more
wiley   +1 more source

Balancing protein and energy in Nile tilapia feeds: A meta‐analysis

open access: yesReviews in Aquaculture, Volume 14, Issue 4, Page 1757-1778, September 2022., 2022
Abstract Farmed fish are increasingly grown in intensive and semi‐intensive systems where most nutrients are provided by formulated feeds. These are formulated to minimise costs and optimise growth, notably the rate of muscle protein synthesis (i.e., fillet). Protein synthesis depends on the availability of amino acids (i.e., protein) and energy. Thus,
Gauthier D. P. Konnert   +3 more
wiley   +1 more source

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