Results 121 to 130 of about 7,258 (256)

MOHID as a tool to evaluate the impact of water discharge from dams on the advection of estuarine fish larval stages [PDF]

open access: yes, 2013
The impoundment of rivers by dams is the biggest direct anthropogenic impact on the hydrological cycle. The utility of dams, as providers of water for human consumption, irrigation and electrical production, is undeniable.
Chícharo, Alexandra   +4 more
core  

Biologie de l'anchois () en Mauritanie

open access: yes, 1989
L’étude du cycle sexuel de l’Anchois montre que la principale période de reproduction s’étend d’avril à octobre. Celle-ci serait sous la dépendance principale de l’élévation de la température de surface. La croissance, abordée à l’aide des marques supposées journalières sur les otolithes, donne des résultats jugés satisfaisants jusqu’à 10 cm L.F.
openaire   +1 more source

Evaluation of Anchovy Egg Density: A Study on Differences Between Vertical and Oblique Towing Samplers for Ichthyoplankton

open access: yesOceans
The use of multiple sampling instruments during ichthyoplankton surveys could require a significant amount of time for sample collection procedures; moreover, their use is highly dependent on weather conditions. During surveys aimed at the application of
Gualtiero Basilone   +4 more
doaj   +1 more source

RNA : DNA ratio and other nucleic acid derived indices in marine ecology [PDF]

open access: yes, 2013
Some of most used indicators in marine ecology are nucleic acid-derived indices. They can be divided by target levels in three groups: 1) at the organism level as ecophysiologic indicators, indicators such as RNA:DNA ratios, DNA:dry weight and RNA ...
Chícharo, Alexandra, Chícharo, Luís
core  

Meteorological and oceanographic factors influencing Engraulis encrasicolus early life stages and catches in the Gulf of Cádiz

open access: green, 2006
Javier Ruiz   +9 more
openalex   +2 more sources

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