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ISSN: 2574 -1241
ISSN: 2574 -1241
Received: November 06, 2017; Published: November 14, 2017
DOI: 10.26717/BJSTR.2017.01.000529
In order that survival of young be more than optimum, the timing of spawning by the mature adult fish is so adjusted that must be closely linked to the availability of maximum congenial environment added by increased food availability of food for the newly hatched young ones. The availability of food for the larvae and juveniles of most temperate and cold water fish species varies on a seasonal basis and following this fish are usually found to have a discrete and selective spawning season so perfectly timed that hatched out larvae will get readily available exogenous food from nature for their further development. Thus, in many temperate and cold water species, spawning is an annual event. Spawning culminates a series of preparatory events during which the gametes develop and the gonads increase in size. The annual cycle of fishesgenerally categorized into three major phases:
International Association of Landscape Archaeology, Czech Glass Society, Czech Republic
Department of Chemistry, Semenov Institute of Chemical Physics, USSR Academy of Sciences, Moscow, Russia
Pharmaco-kinetics, dynamics and Drug Metabolism, Touro College of Pharmacy, USA
Professor of Nuclear Medicine, Faculty of Medicine and Surgery, University of Milan, Milan, Italy
Associate Professor at Department of Breast and Thyorid Surgey, Chongqing General Hospital, China
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