Skip to main content

Free Content Age and growth of yellowtail snapper, Ocyurus chrysurus, from the southeastern United States

Download Article:
(PDF 501.6123046875 kb)
Sagittal otoliths were collected from 1528 yellowtail snapper, which were obtained from commercial and headboat fisheries during 1994–1999 in Daytona Beach, Florida through Key West, Florida and the Dry Tortugas. The oldest yellowtail snapper was 13 yrs old and the largest fish was 561 mm fork length (FL) [700 mm total length (TL)]. Marginal increment analysis revealed the opaque zones to be true annuli formed in spring. The relations of TL to FL were described by the following equations: TL = 9.96 + 1.20(FL) and FL = 7.56 + 0.79(FL). The weight-length relations were described by the equations: W = 4.14 × 10−5 FL2.83 and W = 3.64 × 10−5 TL2.76, where W = weight (g). The length-otolith radius relations were best described by the equations: FL = −50.9 + 10.4(Rc) and TL = −70.3 + 13.0(Rc), where Rc = otolith radius in micrometer units. Mean back-calculated fish lengths for given ages ranged from 132 mm FL (160 mm TL) for age 1 to 516 mm FL (638 mm TL) for age 13. Theoretical growth was best described by the von Bertalanffy growth equation: FLt = 483.8(1 − e−0.17 (t + 1.87)) and TLt = 607.7(1 − e−0.17 (t + 1.88)) where t = age in years. Fish lengths at specific ages were similar to those reported almost 20 yrs ago. The pooled instantaneous total mortality rate (Z) for all fish ages 3–13 in was 0.64 (n = 1484). Modal ages for yellow-tail snapper caught in the commercial and headboat fisheries were ages 2 and 3 respectively. Overall, the structure and growth of the yellowtail snapper stock off southern Florida has not changed in two decades of heavy fishing; although, fewer older fish were detected in our study.

9 References.

No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2003-05-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more