Accession Number:

ADA180382

Title:

Species Profiles. Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (Mid-Atlantic). STRIPED BASS,

Descriptive Note:

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF FISHERIES AND WILDLIFE SCIENCES

Report Date:

1983-10-01

Pagination or Media Count:

45.0

Abstract:

Species profiles are literature summaries on the taxonomy, morphology, range, life history, environmental impact assessment. The striped bass Morone saxatilis is a highly valued recreational and commercial fish species and is surpassed in total recreational catch weight only by bluefish and Atlantic mackerel on the Atlantic coast. Males mature at age 2 or 3, and females at age 4 or 5. Striped bass are anadromous, spawning in fresh or nearly fresh water, from April through June in the mid-Atlantic region. Upper Chesapeake Bay, its many tributaries, and the Chesapeake-Delaware Canal are the most important spawning grounds on the Atlantic coast. Eggs are semibuoyant, and require a minimum current velocity of 30.5 cms during development to keep them from settling and smothering on the bottom. Environmental conditions during the larval stage are considered most crucial in terms of future year class strength. Juveniles remain in or near areas of origin for 2 or 3 years, at which time a portion of the juveniles may join coastal migratory stocks, moving north in spring and summer and south in fall and winter. Temperature, salinity, current velocity, and turbidity are important environmental factors for striped bass. Eggs require water temperatures between 14 C and 23 C, salinities between 0 to 10 ppt, water currents of at least 30.5 cms, and tribidities less than 1000 mg1 for successful development and hatching. Larvae require temperatures between 10 C and 25C, salinities between 0 and 15 ppt, and turbidities less than 500 mg1 for survival. Juvenile and adult tolerances are generally wider. Keywords Estuaries GrowthPhysiology.

Subject Categories:

  • Biology
  • Biological Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE