[Coral reefs of Bocas del Toro, Panamá: IV. Distribution, structure and conservation state of continental reefs of Peninsula Valiente].

Abstract:

:This is the fourth and last contribution describing the individual structure, distribution and conservation status of coral reefs in the Province of Bocas del Toro. Here we describe 14 new reefs along 129 km of coast from Peninsula Valiente to Río Calovébora. Average live coral coverage for this region was 17.1% (+/- 3.6%), mainly in the western region of the peninsula (Bahia Bluefield and Ensenada Tobobe). Coral cover increases with depth (> 5 m) for most species at several reefs and the corals Porites furcata and Acropora palmata dominated shallow waters. Acropora palmata was found abundant in 43% of the studied reefs and toward the regions of the Ensenada Tobobe and Punta Valiente. Coral recruitment rates were similar in distribution to those reefs with greater coral coverage, with average densities of 4 recruit/m2 (maximum 9 recruits/m2) and mainly Agaricia spp., Porites astreoides and Siderastrea siderea. The greater diversity of corals and sponges was recorded toward the western side of the peninsula, with a total of 55 coral species in the study area, including two new records for Bocas del Toro (59 species in total), Dichocoenia stellaris and Madracis luciphila and increasing the diversity of corals of Panama to 65 species. We found 24 species of octocorals and Gorgonia mariae, Muriceopsis sulphurea and Muricea laxaoosens, are informed for the first time to the area, increasing in 10% the diversity for Bocas del Toro (32 in total). We recorded 48 sponges, including five new species for the area and representing an increase of 9% in the total number (58). Large populations of Acropora palmata were found in the Ensenada Tobobe, what justifies once again the need for modifying the existing protected area, so that this new region is incorporated within the conservation plans.

journal_name

Rev Biol Trop

authors

Guzmán HM,Guevara CA

subject

Has Abstract

pub_date

2001-03-01 00:00:00

pages

53-66

issue

1

eissn

0034-7744

issn

2215-2075

journal_volume

49

pub_type

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