Coral recruitment and potential recovery of eutrophied and blast fishing impacted reefs in Spermonde Archipelago, Indonesia

MARINE POLLUTION BULLETIN

卷:74

Article

Sawall, Yvonne¹  Jompa, Jamaluddin²  Litaay, Magdalena²  Maddusila, Andi²  Richter, Claudio³ 

[1] Leibniz Ctr Trop Marine Ecol, D-28359 Bremen, Germany

[2] Hasanuddin Univ, Ctr Coral Reef Res, Makassar 90245, Indonesia

[3] Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, D-27568 Bremerhaven, Germany

关键词: Coral recruitment;    Seasonality;    Eutrophication;    Blast fishing;    Spermonde Archipelago;   

DOI  :  10.1016/j.marpolbul.2013.06.022

来源: Elsevier

【 摘 要 】

Coral recruitment was assessed in highly diverse and economically important Spermonde Archipelago, a reef system subjected to land-based sources of siltation/pollution and destructive fishing, over a period of 2 years. Recruitment on settlement tiles reached up to 705 spat m(-2) yr(-1) and was strongest in the dry season Uuly-October), except off-shore, where larvae settled earlier. Pocilloporidae dominated nearshore, while a more diverse community of Acroporidae, Poritidae and others settled in the less polluted mid-shelf and off-shore reefs. Non-coral fouling community appeared to hardly influence initial coral settlement on the tiles, although, this does not necessarily infer low coral post-settlement mortality, which may be enhanced at the near- and off-shore reefs as indicated by increased abundances of potential space competitors on natural substrate. Blast fishing showed no local reduction in coral recruitment and live hard coral cover increased in oligotrophic reefs, indicating potential for coral recovery, if managed effectively. (C) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

Free