Abstract:
:Breakwaters are widely used in coastal development. Breakwaters can alter habitats by undermining shallow coastal ecosystems, especially coral reefs. However, recent studies indicate that mature breakwaters can have well-developed corals and coral-associated fishes. Breakwaters with colonized corals may act as surrogates of natural coral reefs against the global coral crisis. Here, we examined the composition of corals, fishes, and benthic biota/abiota between natural reefs and mature breakwaters to evaluate the possibility of breakwaters supplementing natural reefs. We found equal or higher coral cover, fish abundance, and species richness on breakwaters. Conversely, differential coral growth forms and fish assemblages on mature breakwaters suggested the irreplaceability of natural reefs. Corals and coral reef fishes on mature man-made structures, however, may improve the resistance and resilience of coral reefs. Conclusively, despite high coral cover on mature man-made structures appropriate management (e.g., marine reserves) is still necessary to sustain the coral reefs.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Wen CK,Chen KS,Hsieh HJ,Hsu CM,Chen CAdoi
10.1016/j.marpolbul.2013.04.031subject
Has Abstractpub_date
2013-07-15 00:00:00pages
55-63issue
1eissn
0025-326Xissn
1879-3363pii
S0025-326X(13)00227-0journal_volume
72pub_type
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