16 research outputs found
Biological evidence of diminished nursery capability in Discovery Bay, Jamaica; Evidencia biologica de la reduccion en la capacidad de criadero en la Bajia Discovery en Jamaica
Get PDFDistribution and Abundance of Fish Populations in Various Habitats in the Mutton Snapper (Lutjanus analis) Conservation Area on the South Shelf of St. Croix, U.S. Virgin Islands
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Evaluating artificial means to increase Acropora coral populations and increase associated fish communities in Jamaica
Get PDFSpiny lobster (Panulirus argus) recruitment to artificial habitats in waters off St. Thomas, Virgin Islands
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The effects of trap fishing in coral reef habitats: a preliminary analysis [abstract]; Los effectos de la pesca con trampas en los arrecifes de coral y en los habitat associados con estos: analysis preliminares [resumen]
Get PDFSexual reproduction in Acropora (Isopora) (Coelenterata: Scleractinia) - II. Latitudinal variation in A. palifera from the Great Barrier Reef and Papua New Guinea
No full textIn contrast to the seasonal gamete and planula production of Acropora (Isopora) palifera on Heron Island reef (Lat. 23° S), populations on Lizard Island reef (Lat. 14° S), sampled in 1979, 1981 and 1983, and Salamaua and Busama reefs (Lat. 7° S), sampled from 1980 to 1983, planulated year-round. Intensive sampling of colonies at Salamaua and Busama showed that gametes ripened at two-month intervals and that up to six cycles of gametes and larvae could be produced by an individual colony. Gametes of only a portion of the population - usually close to 50% - ripened each month. The Salamaua population, on average, produced fewer and smaller planulae than the Heron Island population during each two-monthly reproductive cycle. Hypotheses correlating the annual periodicity of breeding in marine animals with latitudinal variation of temperature were tested. In general, the time of breeding in A. palifera at Heron Island reef is much more restricted than theories based on latitudinal variations of water temperature would predict. It is hypothesized that, in the near subtropical environment of Heron Island reef, this species has evolved a life-history strategy that limits the amount of energy allocated to reproduction and allocates more energy to growth
La recherche scientifique face Ă la pĂȘche artisanale = Research and small-scale fisheries
No full textL'information sur les pĂȘcheries traditionnelles dans les pays du Pacifique sud est essentielle pour planifier le dĂ©veloppement mais fait encore dĂ©faut. Ceci est dĂ» Ă l'incapacitĂ© des scientifiques occidentaux d'adapter leurs mĂ©thodologies. Par la mise en place de techniques d'enregistrements appropriĂ©es et grĂące Ă la formation de personnes sĂ©lectionnĂ©es sur place ("biologistes aux pieds nus"), on peut obtenir des donnĂ©es utiles pour un prix raisonnable. En utilisant cette mĂ©thode, la pĂȘcherie plurispĂ©cifique du village de Labu Butu en Papouasie Nouvelle-GuinĂ©ee (PNG) a Ă©tĂ© Ă©tudiĂ©e pendant une pĂ©riode de deux ans. L'activitĂ© de cette pĂȘcherie est plus Ă©levĂ©e que pour toute autre rĂ©gion de PNG. (RĂ©sumĂ© d'auteur
