Volume 54

Harvest of Settlement Stage Reef Fish for Small-scale Grow-out or Stock Enhancement: A Feasibility Study on the Family Haemulidae

Power, R.
Download PDF Open PDF in Browser

Other Information

Date: November, 2001

Pages: 401-412

Event: Proceedings of the Fifty Fourth Annual Gulf and Caribbean Fisheries Institute

City: Providenciales Turks & Caicos Islands

Country: Turks and Caicos Islands


Mortality rates of reef fishes are typically very high in the first few weeks after settlement. Capture, rearing, and release of reef fish before or shortly after settlement may provide an opportunity to increase survival. Increasing survival at this stage could be a sustainable way of increasing fisheries resources. Visual censuses of juvenile grunts (Haemulidae) during settlement pulses from January to March 2001 and July to September 2001 in Tortola, British Virgin Islands were used to estimate local post-settlement mortality rates on a back-reef, seagrasslsand halo area. Concurrently, settling haemulids were captured from another location and reared in aquaria and sea cages. For fish smaller than 15 mm TL, aquarium-based rearing trials were used to compare the efficacy of feeding with wild-caught plankton or feeding with brine shrimp nauplii. Internally lit sea cages were tested against a plankton-pump food-delivery system for fish larger than 15 mm. Fish growth rates were rapid and mortality rates in sea cages were low for fish greater than 15 mm in size. Results are discussed in relation to potential applications for stock enhancement or mariculture.

PDF Preview