Accession Number : ADA180392

Title :   Species Profiles. Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (South Florida). SNOOK,

Corporate Author : FLORIDA UNIV GAINESVILLE SCHOOL OF FOREST RESOURCES AND CONSERVATION

Personal Author(s) : Seaman,William , Jr. ; Collins,Mark

Report Date : OCT 1983

Pagination or Media Count : 26

Abstract : Species profiles are literature summaries on the taxonomy, morphology, range, life history, and environmental requirements of coastal finfishes and shellfishes. They are designed to assist in environmental impact assessment. The snook (Centropomus undecimalis) is of regional importance in the recreational fishery of south Florida, where its abundance centers in mangrove-fringed coastal waters. Commercial fishing is no longer allowed, and closed sport seasons have been enacted recently. Serious population declines have been caused by degradation of habitat and fishing pressure. Snook exhibit a classic estuarine-dependent life cycle, with spawning in nearshore salt waters in warmer months and juvenile development in brackish inshore tidal streams, salt marshes, and grass beds. Juveniles remain in estuaries for the first year of life, whereas adults range from freshwater to oceanic habitats. Snook are carnivorous, non-migratory except for localized spawning-associated movements, and typically achieve sexual maturity in the second and third years of life (at 40-50 cm fork length). This species is susceptible to cold, with 15.6 C regarded as a lower limiting temperature. Keywords: Ecology.

Descriptors :   *FISHES, *MARINE BIOLOGY, ADULTS, RECREATION, SEASONS, COMMERCIAL FISHING, ECOLOGY, ENVIRONMENTS, REQUIREMENTS, PRESSURE, BRACKISH WATER, INSHORE AREAS, STREAMS, TIDES, COASTAL REGIONS, DEGRADATION, HABITATS, ENVIRONMENTAL IMPACT, ESTUARIES, FRESH WATER, OCEANS, INVERTEBRATES, HISTORY, LIFE(BIOLOGY), LIMITATIONS, LOW LEVEL, LOW TEMPERATURE, POPULATION, SALTS, SWAMPS, PROFILES, YOUTH, DOCUMENTS, WATER, FISHERIES, FLORIDA, SOUTH(DIRECTION), TAXONOMY, LIFE CYCLES, REPRODUCTION(PHYSIOLOGY)

Subject Categories : Biology
      Biological Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE