A Forensic Tool Application: Distinguishing Wild from Cultured Fish

Effective 31 December 1990, the sale of wild-caught red drum was banned in the state of Texas. Practical enforcement of this legislation required the use of a technique that could unambiguously discriminate between wild and farm-raised fish. Fatty acid profiles were established for wild red drum from 4 major Texas bay systems as well as from 2 aquaculture ventures to determine if this technique could be a useful enforcement tool. Results indicate that fatty acid compositions, especially levels of linoleic acid (18:2n-6) and arachidonic acid (20:4n-6), can be useful to distinguish between wild and cultured red drum. The ability to determine the origin of fish greatly enhances the enforcement of legislation designed to protect fisheries resources.

Starting page
550
Ending page
555
ID
26041