Cooperative Research Units
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Reproductive status of the Tripletail, Lobotes surinamensis Aggregation Offshore Jekyll Island Georgia


January 2009 - June 2011


The goal of this study is to describe the reproductive status of the tripletail aggregation near Jekyll Island, GA. The use of traditional histological methods requires researchers to collect and sacrifice large numbers of fish in order to produce meaningful results. However, non-lethal alternative may also be effective.

* Use of non-lethal measures of reproductive physiology (e.g, sex hormones, vitellogenin, ultrasound imaging) for assessment of tripletail reproductive status.

* Validate non-lethal assessment methods by comparing results with gonad histology

* evaluate efficacy of using sagittal otolith and first dorsal spine for determining age of tripletail in Jekyll Island aggregation.


Current Staff

Federal Staff: 95

Masters Students: 239

Phd Students: 142

Post Docs: 53

University Staff: 240

5 Year Summary

Students graduated: 701

Scientific Publications: 1936

Presentations: 4260



  • Cecil JenningsCo-Principal Investigator
  • Robert B BringolfPrincipal Investigator
  • Russell ParrStudent

Funding Agencies

  • GA Department of Natural Resources


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey