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    Age and growth of king mackerel, Scomberomorus Cavalla, from the Atlantic coast of the United States.

    • File:DNR_Fishery_Bulletin_Age_and_Growth_1989.pdf
      Description:PDF Document
      MIME type:application/pdf
      File Size:487.8Kb
    Author
    Collins, Mark R.
    Schmidt, David J.
    Waltz, C. Wayne
    Pickney, James L.
    Subject
    King mackerel
    Description
    Whole sagittae from 683 and sectioned sagittae from 773 "adult" (age> 0 ; 437-1.310 mm FL) and lapiUi from 29 larval (2-7 nun SL) and 69 young-of-the-year (79-320 mm FL) king mackerel. were examined. All fish were from waters off the Atlantic coast of the southeastern United States (Cape Canaveral, Florida to Cape Fear. North Carolina). Back-calculated lengths at ages and von Bertalanffy growth equations were calculated from both whole and sectioned sagittae. Ages determined from sectioned sagittae were significantly greater than ages determined from whole sagittae, and the magnitude of the difference increased with age (from sections). Rings on sectioned sagittae are considered to be true annual increments. fonning during June-September. There was no clear pattern to ring formation on whole otoliths. The oldest fish examined was age 21. The daily nature of rings on lapilli of age 0 king mackerel was not validated. but if the marks are formed daily they suggest growth rates of approximately 0.47 mm/d for early larvae and 2.9 mmld for fish 1-3 months of age.
    URI
    http://hdl.handle.net/10827/10543
    Collections
    • Fishery Bulletin
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    Date
    1989
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    Date Accessioned2013-08-22T12:54:36Z
    Date Available2013-08-22T12:54:36Z
    dc.descriptionWhole sagittae from 683 and sectioned sagittae from 773 "adult" (age> 0 ; 437-1.310 mm FL) and lapiUi from 29 larval (2-7 nun SL) and 69 young-of-the-year (79-320 mm FL) king mackerel. were examined. All fish were from waters off the Atlantic coast of the southeastern United States (Cape Canaveral, Florida to Cape Fear. North Carolina). Back-calculated lengths at ages and von Bertalanffy growth equations were calculated from both whole and sectioned sagittae. Ages determined from sectioned sagittae were significantly greater than ages determined from whole sagittae, and the magnitude of the difference increased with age (from sections). Rings on sectioned sagittae are considered to be true annual increments. fonning during June-September. There was no clear pattern to ring formation on whole otoliths. The oldest fish examined was age 21. The daily nature of rings on lapilli of age 0 king mackerel was not validated. but if the marks are formed daily they suggest growth rates of approximately 0.47 mm/d for early larvae and 2.9 mmld for fish 1-3 months of age.
    Media TypeDocument
    Item LanguageEnglish
    PublisherSouth Carolina State Library
    Digital CollectionSouth Carolina State Documents Depository
    RightsCopyright status undetermined. For more information contact, South Carolina State Library, 1500 Senate Street, Columbia, South Carolina 29201.
    TypeText
    Digitization SpecificationsThis South Carolina State Document was either saved from a document available publicly online in PDF format or converted to PDF using Adobe Acrobat X Professional.
    

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