Nom du corpus

Corpus Systématique Animale

Titre du document

Resource biology of Pterocladia capillacea (Gelidiales, Rhodophyta) populations in Brazil

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Pterocladia
  • Gelidiales
  • agar
  • sea urchins
Nom du fichier dans la ressource
Echinodermes_v2b_0340
Auteur(s)
  • E. C. Oliveira 1
  • F. A. S. Berchez 1
Affiliation(s)
  • 1) Inst. Biociências and Centro de Biologia Marinha, Universidade de S. Paulo, C. postal 11461.05422-970, S. Paulo, SP, Brazil
Résumé

Pterocladia capillacea has been already exploited in Brazil and Uruguay, but exploitation was discontinued due to source depletion. Our attempts to cultivate this species in the sea, or in tanks, gave poor results. In this communication we present some ecological data as a contribution to evaluate the possibility of a production increase in natural beds on the southeast coast of Brazil. Our results show that: (i) the populations are perennial varying from 323 (i.c.0.05 = 51) to 600 (i.c.0.05 = 78) g dry weight throughout the year; (ii) horizontal distribution is affected by irradiance, with higher biomass in shaded areas and by water movement, with higher biomass in intermediate sites; (iii) vertical distribution is limited above by desiccation and below by herbivores — sea urchins removal increases cover by 20–50%; (iv) Sargassum vulgare is the main competitor for space, and its removal on areas of contact between both populations increases coverage of P. capillacea by ca 80%.

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 - cytologie, morphologie, systematique, floristique et evolution des vegetaux
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
08A2071D11A6BE32F6B17C2947083EBB001F7646
Revue

Hydrobiologia

Année de publication
1993
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.789
Sous-corpus
  • Echinodermes
Type de publication
Journal
ark:/67375/1BB-GFGB8CB9-0
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