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The Impact of Diet on the Survival Skills of Hatchery Red Drum (Sciaenops ocellatus)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Beck, Jéssica Luíza Rooker, Jay R. |
| Copyright Year | 2007 |
| Abstract | Red drum, Sciaenops ocellatus, larvae (10 - 12 mm standard length, SL) were collected from a Texas Parks and Wildlife Department (TPWD) hatchery and reared on either artificial pellets (Rangen and Otohime feeds) or live prey (enriched Artemia franciscana, mysid shrimp) for a 14 day period. High-speed video was then used to evaluate differences in prey-capture (attack distance, mean attack velocity, capture time, and gape cycle duration) and anti-predator (reaction distance, response distance, maximum velocity, and maximum acceleration) performance between the two rearing groups. Repeated-measures analysis of variance (RMANOVA) indicated that red drum reared on pellets exhibited significantly longer gape cycle duration while feeding on a natural prey item (mysid shrimp), while red drum reared on live prey exhibited significantly greater maximum velocity and maximum acceleration when responding to a visual stimulus. Results of this study suggest that diet may influence certain behaviors linked to survival success in hatchery red drum. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://nsgl.gso.uri.edu/flsgp/flsgpw07001/data/papers/055.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
