Spawning of Red Snapper (Lutjanus campechanus) in Response to Hormonal Induction or Environmental Control in a Hatchery Setting
| Autor: | Nikolaos Papanikos, Ronald P. Phelps, A. Ferry, D. A. Davis, Ryan Hastey, D. L. Maus, F. T. Bueno, B. D. Bourque |
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| Rok vydání: | 2009 |
| Předmět: |
photoperiodism
urogenital system business.industry fungi food and beverages Lutjanus campechanus Aquatic animal Management Monitoring Policy and Law Aquatic Science Biology Fecundity Spawn (biology) Hatchery food.food Fishery Gonadosomatic Index Animal science food Aquaculture business reproductive and urinary physiology Ecology Evolution Behavior and Systematics |
| Zdroj: | Reviews in Fisheries Science. 17:149-155 |
| ISSN: | 1547-6553 1064-1262 |
| Popis: | Red snapper (Lutjanus campechanus) is a popular marine sportfish and is a significant part of the commercial fisheries in the Gulf of Mexico. It can be reproduced under hatchery conditions by induced spawning of wild-caught adults or by conditioning wild-caught adults to spawn naturally under controlled conditions. Mature females (Gondosomatic Index ω 1) occur in the northern Gulf of Mexico from May to September. When such females were collected off the Alabama coast and induced to spawn with HCG, 56 ± 17.3% of the females ovulated. Fecundity (ovulated floating eggs) varies, for 60 spawns averaged 197,212 ± 173,349 eggs/kg female. Percent hatch averaged 42.1 ± 3.44%. Wild-caught adult red snapper can be held in confinement and natural spawning obtained when temperature and photoperiod are controlled. Adult snapper held in 13.2-m3 tanks (8–10 fish/tank), where photoperiod and temperatures were adjusted, spawned naturally 63 times over a 105-day period, with a mean egg production/tank of 4.2 million eggs. M... |
| Databáze: | OpenAIRE |
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