Skip to main content

Restoring depleted coral-reef fish populations through recruitment enhancement: a proof of concept

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

To determine whether enhancing the survival of new recruits is a sensible target for the restorative management of depleted coral-reef fish populations, settlement-stage ambon damsel fish Pomacentrus amboinensis were captured, tagged and then either released immediately onto small artificial reefs or held in aquaria for 1 week prior to release. Holding conditions were varied to determine whether they affected survival of fish: half the fish were held in bare tanks (non-enriched) and the other half in tanks containing coral and sand (enriched). Holding fish for this short period had a significantly positive effect on survivorship relative to the settlement-stage treatment group that were released immediately. The enrichment of holding conditions made no appreciable difference on the survival of fish once released onto the reef. It did, however, have a positive effect on the survival of fish while in captivity, thus supporting the case for the provision of simple environmental enrichment in fish husbandry. Collecting and holding settlement-stage fish for at least a week before release appear to increase the short-term survival of released fish; whether it is an effective method for longer-term enhancement of locally depleted coral-reef fish populations will require further study.

Keywords: Pomacentrus amboinensis; behaviour; enrichment; recruitment; restorative management; settlement-stage coral-reef fishes

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.1095-8649.2009.02401.x

Affiliations: Australian Institute of Marine Science, 35 Stirling Highway, Crawley, WA 6009, Australia

Publication date: November 1, 2009

bsc/jfb/2009/00000075/00000007/art00023
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect 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