نتایج جستجو برای: larval fish

تعداد نتایج: 126666  

2011
Øyvind Fiksen Christian Jørgensen

How do growth and survival of larval fish depend on the availability of zooplankton prey? This question connects plankton ecology to fisheries science and is typically answered by the classical ‘match/mismatch’ hypothesis for explaining recruitment variability to fish populations. In field and experimental data, however, the effects of food abundance on growth are not always unequivocal. Here, ...

2002
Camilo Mora Peter F. Sale

Camilo Mora* Peter F. Sale Dept of Biology, University of Windsor, Windsor, ON, Canada N9B 3P4. *e-mail: moracamilo@ hotmail.com DISPERSAL (see Glossary) is one of the most important life-history traits involved in species evolution and persistence [1–4]. It is also the primary determinant of CONNECTIVITY among local populations, which is a vital parameter for conservation strategies based on p...

ژورنال: علمی شیلات ایران 2019

A total of 180 fish samples from three commercially important teleosts (Epinephelus coioides, Euthynnus affinis and Thunnus tonggol fish) of Persian Gulf across Hormozgan coast were investigated for plerocercoid infestation, which were sampled from Jun 2017 to September 2017. The parasites were fixed, stained, mounted on to slides and identified. Epinephelus coioides was not infested. Following...

A. Hajizadeh, A. Shinn

This study investigates the effects of dietary lipid sources on the growth and reproductive performance of Nile tilapia over three consecutive spawnings. Fish were reared using three experimental diets, with the goal of replacing dietary fish oil with palm oil. Three experimental diets and a commercial   trout diet was used as the control. The effect of dietary lipid on the growth performance, ...

Occurrence and distribution of larval and juvenile fish was investigated in nearshore waters of the southeastern Caspian Sea including the Gorgan Bay. Samples were collected during seven surveys using a fine mesh beach-seine in five sampling sites from July 2014 to June 2015. A total of 15500 individuals mostly juvenile were captured, representing 18 species from 8 families. Most juveniles belo...

Journal: :Journal of the American Mosquito Control Association 1989
B K Orr V H Resh

Emergent or submergent macrophytes can enhance the survival of Anopheles larvae by providing favorable microhabitat and refuge from predation. The relationships among the amount of aquatic macrophyte cover, the density of Gambusia affinis, and survivorship of Anopheles freeborni larvae were tested experimentally. Larval survivorship was positively related to amount of plant cover and negatively...

Journal: :ICES Journal of Marine Science 2013

Journal: :Marine Ecology Progress Series 1985

Journal: :Limnology and Oceanography 2002

Journal: :NIPPON SUISAN GAKKAISHI 1986

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