Results 41 to 50 of about 120 (91)

Ictioplancton, eufáusidos, y biovolúmenes de zooplancton, verano 2016

open access: yes, 2022
Del 29 de marzo al 30 de abril 2016 se realizó el Crucero de Evaluación Hidroacústica de Recursos Pelágicos 1603-04. 133 muestras de zooplancton fueron recolectadas utilizando una red Hensen de 300 µm de abertura de malla, operada en arrastres verticales con el buque parado desde 50 m de profundidad máxima a la superficie.
openaire   +1 more source

Ictioplancton en el Crucero de biomasa desovante de anchoveta 1908-09

open access: yes, 2022
Se presentan los resultados del análisis de muestras de ictioplancton recolectadas durante el crucero de biomasa desovante de anchoveta 1908-09 a bordo del BIC Humboldt y BIC Olaya, ejecutado del 26 de agosto al 25 de setiembre 2019, cubriendo el área desde Talara hasta bahía Independencia. Se determinó 27 especies de peces a nivel de larvas.
Pinedo, Elda, Ayón Dejo, Patricia
openaire   +2 more sources

Temporal distribution of ichthyoplankton in the Ivinhema River (Mato Grosso do Sul State/ Brazil): influence of environmental variables

open access: yesNeotropical Ichthyology, 2011
Information on ichthyoplankton is an important tool in determining reproduction periods that - if associated to environmental variables - allows for inferences about the factors that regulate their intensity, beginning, and ending.
David Augusto Reynalte-Tataje   +4 more
doaj  

Identification of fish nursery areas in a free tributary of an impoundment region, upper Uruguay River, Brazil

open access: yesNeotropical Ichthyology, 2012
This study aims to determine the importance of different environments of the Ligeiro River (upper Uruguay River, Brazil) in fish reproduction. For this purpose, three environments (sampling sites) were selected: rapids, a pool, and the mouth of the ...
Patrícia Alves da Silva   +2 more
doaj  

Estacionalidad del ictioplancton en el Golfo de Salamanca, Caribe Colombiano

open access: yesActualidades Biológicas, 2019
Se investigó la identidad, densidad y distribución especial y temporal de larvas y huevos de peces en el Golfo de Salamanca, Caribe Colombiano. Se visitó un total de 49 estaciones escogidas aleatoriamente y repartidas entre las épocas de lluvia y seca. En razón a la escasez de estudios previos el nivel taxonómico se restringió a familia.
openaire   +1 more source

Composition of the zooplankton community,with emphasis in copepods, in Punta Morales,Golfo de Nicoya,Costa Rica

open access: yesRevista de Biología Tropical, 2004
The composition of the mesozooplanktonic community was studied in the Punta Morales estuary, Gulf of Nicoya,Pacific coast of Costa Rica,during 1997.Oblique plankton hauls were performed during high and low tide using a 280 µm mesh screen net equipped ...
Ernesto Brugnoli-Olivera   +4 more
doaj  

Literature-based occurrences data of marine species in Venezuela. [PDF]

open access: yesBiodivers Data J, 2023
Peralta Brichtova AC   +13 more
europepmc   +1 more source

Biovolúmenes de zooplancton e ictioplancton en otoño 2014

open access: yes, 2018
ABSTRACT: During autumn 2014, between 03°30’S and 10°S, 94 zooplankton samples were collected using a Hensen net (300 μm) by vertical trawls 50 m deep to the surface. Biovolumes fluctuated between 0.5 and 50.0 mL/sample, with a mean of 10.9 mL/sample. Biovolumes between 5.1 and 10.0 mL/sample were more frequent (40.4%) than biovolumes larger than 20 mL/
Correa Acosta, Jonathan   +1 more
openaire   +2 more sources

Ictioplancton en la zona portuaria de Limón, Costa Rica

open access: yesRevista de Biología Tropical, 2000
Four sampling stations were set 200-500m off Limon Port, Costa Rica, at an average depth of 20 m. From October 1996 to May 1997 horizontal subsuperficial trawls were done for 12 minutes at a speed of 1.853 Km/h, with a 1 000 µm net were surveyed with.
Arturo Dominici-Arosemena   +4 more
doaj  

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