Species profiles: Life histories and environmental requirements of coastal fishes and invertebrates (South Florida): Gray, lane, mutton, and yellowtail snappers. [Lutjanus griseus; Lutjanus synagris; Lutjanus analis; Ocyurus chrysurus]
These four snapper species have similar morphologies as well as life history and environmental requirements. With some exceptions they are restricted to tropical and subtropical coastal areas of the western Atlantic. Adults often associate with coral reef and other hard-bottom communities. Juveniles and pre-adults usually inhabit shallow, inshore areas and are often found in seagrass beds. Reproduction usually takes place offshore in the warmer months of the year. Fecundity is positively related to female body size, but there is substantial variation both within and among the species. Juveniles obtain adult body proportions at about 50 mm SL. Approximate total maximum lengths of adults are 900 mm for gray snapper, 446 mm for lane snapper, and 750 mm for mutton and yellowtail snappers. Otoliths are the most preferred body part used to determine age. Most snappers attain sexual maturity after 3 to 5 years at a size range of 180 to 350 mm FL. Males mature at a smaller size than females. Recent commercial catches of gray and lane snappers have been increasing, whereas mutton and yellowtail snappers show no clear trends. Sport fishing probably has a substantial impact on the stocks of all four species. All four snappers feed predominantly on small benthic fishes and crustaceans, but yellowtail snapper feed on more pelagic animals. Upper water temperature tolerance limits are 27.2 to 32.5/sup 0/C and lower limits are 11 to 14/sup 0/C.
- Research Organization:
- University of West Florida, Pensacola (USA). Dept. of Biology
- OSTI ID:
- 7058447
- Report Number(s):
- TR-EL-82-4/82-11-52; ON: TI87900139
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FISHES
ECOLOGY
ATLANTIC OCEAN
COASTAL WATERS
FISHING INDUSTRY
FLORIDA
HABITAT
POPULATION DYNAMICS
REPRODUCTION
TAXONOMY
ANIMALS
AQUATIC ORGANISMS
BIOLOGY
FEDERAL REGION IV
INDUSTRY
NORTH AMERICA
SEAS
SURFACE WATERS
USA
VERTEBRATES
520100* - Environment
Aquatic- Basic Studies- (-1989)