Species profiles: Life histories and environmental requirements of coastal fishes and invertebrates (Pacific Northwest): Lingcod
- Humboldt State Univ., Trinidad, CA (USA). Fred Telonicher Marine Lab.
- Humboldt State Univ., Arcata, CA (USA). California Cooperative Fishery Research Unit
Species Profiles are literature summaries of the taxonomy, morphology, distribution, life history, and environmental requirements of coastal aquatic species. They are prepared to assist in environmental impact assessments. Lingcod, especially during the spawning season, could suffer from oil spills. The lingcod, Ophiodon elongatus, spawns during winter in rocky areas where currents are strong. Lingcod spawn over rocky substrates and the eggs are benthic. Fecundity increases with body weight, e.g., one lingcod weighing 4.5 kg had about 60,000 eggs and one weighing 14.5 kg had about 518,000 eggs. Larvae are extremely active: at first, they feed on small copepods and copepod eggs; later they shift to larger invertebrates and fish larvae. Juvenile lingcod feed on crustaceans and small fish whereas adult lingcod apparently are generalist carnivores (feeding principally on fish). Females become larger and live longer than males. Lingcod contribute to large sport and commercial fisheries. Commercial fisherman use trolling gear, handling jigs, set nets, and set lines, and otter trawls. Sport fishermen use spears or hook and line. Mariculture of lingcod is unlikely in the near future, since no one has succeeded on rearing them from egg to market size. 40 refs., 5 figs., 1 tab.
- Research Organization:
- Humboldt State Univ., Trinidad, CA (USA). Fred Telonicher Marine Lab.; Humboldt State Univ., Arcata, CA (USA). California Cooperative Fishery Research Unit; National Wetlands Research Center, Slidell, LA (USA)
- Sponsoring Organization:
- USDOD; DOI
- OSTI ID:
- 6775468
- Report Number(s):
- BR-82(11.119); TR-EL-82-4/82(11.119); ON: TI90013856
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
FISHES
SPECIES DIVERSITY
RESOURCE DEVELOPMENT
BIOLOGICAL EFFECTS
ENVIRONMENTAL IMPACTS
ANIMAL GROWTH
AQUATIC ECOSYSTEMS
BASELINE ECOLOGY
COASTAL WATERS
FEDERAL REGION X
FEEDING
FISHERIES
HABITAT
LIFE CYCLE
MIGRATION
MORPHOLOGY
POPULATION DYNAMICS
SUBSTRATES
TAXONOMY
TEMPERATURE DEPENDENCE
ANIMALS
AQUATIC ORGANISMS
BIOLOGY
ECOLOGY
ECOSYSTEMS
GROWTH
NORTH AMERICA
SURFACE WATERS
USA
VERTEBRATES
540310* - Environment
Aquatic- Basic Studies- (1990-)
550100 - Behavioral Biology