Nom du corpus

Corpus Systématique Animale

Titre du document

Temporal variations of macroborers in massive Porites lobata on Moorea, French Polynesia

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Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Mollusques_v2b_00141
Auteur(s)
  • M. Peyrot-Clausade 1,2
  • P. Hutchings 2,3
  • G. Richard 2,4
Affiliation(s)
  • 1) UA 41, Centre d'Oceanologie de Marseille, F-13007, Marseille, France
  • 2) Centre de l'Environnement de Moorea, Museum National d'Histoire Naturelle et Ecole Pratique des Hautes Etudes, Moorea, French Polynesia
  • 3) The Australian Museum, P.O. Box A285, 2000, Sydney, NSW, Australia
  • 4) UA 1453, Ecole Pratique des Hautes Etudes, 55 Rue de Buffon, F-75005, Paris, France
Résumé

Massive colonies of Porites lobata on the barrier reef of Tiahura, Moorea, can be divided into four categories: living colonies, colonies consisting of 50% live coral and 50% dead skeleton, 100% dead coral and colonies which have been reduced to a basal plate. Replicate samples of each of these colony types were collected in the same vicinity of the barrier reef during October 1987. The macroborers were extracted, identified, counted and their volumes determined by displacement. Kruskal-Wallis tests showed that three different boring communities occur within these four categories of Porites colonies. Live colonies are characterised by only 3 species, the bivalve, Lithophaga laevigata; the vermetid Dendropoma maximun; and the non boring serpulid polychaete Spirobranchus. The completely dead colonies contain up to 17 boring species, with five to six individuals per 100 cm. Sipunculans are the dominant bioeroders with the most abundant species being Aspidosiphon elegans, sp A and sp B. Colonies of Porites which have been reduced to basal plates contain up to 18 boring species of which the bivalve Lithophaga hanleyana and the sipunculan Aspidosiphon sp. B are the most abundant. The cumulative volume of CaCO3 lost by boring activity increases from 0.1 cm3 per 100 cm3 in a completely dead Porites colony to 1.4 cm3 per 100 cm3 in the residual basal plates of Porites. These can be extrapolated to minimum losses of 14.2 kg m-3. We suggest that rates of boring increase with the time which has elapsed since the death of the colony and the dominant agents of boring also change with increasing age of the coral structure. There are significant additional losses of 5.25 kg m-3 CaCO3 caused by grazing echinoids and scarids.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ecologie animale, vegetale et microbienne
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
2339015DF7E19B89D843E46C1D21919D17F706AF
Revue

Coral Reefs

Année de publication
1992
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.166
Sous-corpus
  • Mollusques
Type de publication
Journal
ark:/67375/1BB-JGQHGCWJ-P
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