Consulta: subjectFacets:"French Polynesia"
Registros recuperados: 42
Data/hora: 29/05/2024 03:37:31

Spatial and temporal variability of the pico- and nanophytoplankton and bacterioplankton in a deep Polynesian atoll lagoon
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Thomas, Y.; Garen, Pierre; Courties, C.; Charpy, L.
Spatial and temporal scales of variability in phyto- and bacterioplankton abundance were investigated in a deep atoll lagoon (Ahe, French Polynesia), Ahe Lagoon showed a classical phytoplankton composition, but its picophytoplankton (Prochlorococcus, Synechococcus and picoeukaryotes) concentrations are higher than the mean for Polynesian atoll lagoons. Phyto- and bacterioplankton descriptors were highly variable, with mean CVs of &gt;20% in most cases: day night, day-to-day, vertical, lagoonal and seasonal. Phytoplankton biomass, which was estimated by in vivo fluorescence, was higher in the deep layer than in the upper layer. This pattern was detected on a day night scale, showing transitory vertical gradients, and through long-term events that were...
Tipo: Text
Palavras-chave: Flow cytometry; Picophytoplankton; Nanophytoplankton; Bacterioplankton; Vertical distribution; Day-to-day dynamics; Large-scale heterogeneity; Deep atoll lagoon; French Polynesia.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00003/11425/7963.pdf

Bioerosion of the coralline alga Hydrolithon onkodes by microborers in the coral reefs of Moorea, French Polynesia
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Tribollet, A; Payri, C.
Calcareous skeletons of the coralline alga Hydrolithon onkodes are colonised by a variety of microboring organisms including euendolithic algae. The species composition of microboring organisms as well as the boring patterns and the boring activity differ between live and dead coralline crusts. The microborers inhabiting the live crusts form an obvious, macroscopically visible green layer in the basal part of the crust, which is in contact with the substratum underneath. Some species, primarily Plectonema terebrans (83 %) and Ostreobium quekettii (7 %) grow from the inside towards the crust's surface and produce a dense network of branched filaments. Following the death of the coralline alga, the skeletons are colonised at the surface and bored inward by...
Tipo: Text
Palavras-chave: Bioérosion; Récifs coralliens; Algues corallinacées; Endolithes; Polynésie française; Bioerosion; Coral reefs; Coralline algae; Endoliths; French Polynesia.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43346/42880.pdf

Metazooplankton communities in the Ahe atoll lagoon (Tuamotu Archipelago, French Polynesia): Spatiotemporal variations and trophic relationships
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pagano, Marc; Sagarra, Pascual-boi; Champalbert, Gisele; Bouvy, Marc; Dupuy, Christine; Thomas, Yoann; Charpy, Loic.
Metazooplankton abundance, biomass (&lt;80 mu m, 200-500 mu m and &gt;500 mu m) and community structure in the Ahe atoll were studied together with their relationships with environmental factors (temperature, salinity, wind) and trophic factors (phytoplankton, bacteria, heterotrophic nanoflagellates (HNF) and ciliates) during three periods in 2008-2009. Meroplankton, mainly bivalve and gastropod larvae, was dominant. Holoplankton was dominated by copepods, the main species being Oithona spp., Paracalanus parvus, Clausocalanus spp., Corycaeus spp., Acartia fossae and Undinula vulgaris. The results suggest a clear wind influence on the structure and horizontal distribution of the zooplankton communities. The metazooplankton appeared to be controlled mainly...
Tipo: Text
Palavras-chave: Metazooplankton; Spatio-temporal patterns; Trophic relationships; Pearl oyster; Atoll lagoon; French Polynesia.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00101/21207/19419.pdf

A possible link between gabbros bearing high temperature iddingsite alteration and huge pegmatoid intrusions: The Society Islands, French Polynesia
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Clement, Jean-philippe; Caroff, Martial; Dudoignon, Patrick; Launeau, Patrick; Bohn, Marcel; Cotten, Joseph; Blais, Sylvain; Guille, Gérard.
This paper reports new field observations and new petrological, textural and geochemical data on two gabbroic intrusions and one pegmatoid dyke from the French Polynesian islands Maupiti and Bora Bora, respectively. Olivine crystals from the Faataufi and Barque de Hiro gabbros (Maupiti) include High Temperature Iddingsite (HTI), exhibiting three distinct morphological facies. Chemical and crystallographical data performed by electron microprobe, scanning microscope, X-ray diffractometry and Near InfraRed spectroscopy show that HTI results from modifications of olivine structure through intense hydroxylation and Fe-oxidation. The HTI-free 120 m-wide Cloche de Hiro dyke (Bora Bora) exhibits a textural zonation from heterogranular/intergranular gabbro...
Tipo: Text
Palavras-chave: Society Islands; French Polynesia; Pegmatoid; Vapor differentiation; Olivine; Gabbros.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2999.pdf

Molecular detection of betanodavirus from the farmed fish, Platax orbicularis (Forsskal) (Ephippidae), in French Polynesia
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: David, R.; Treguier, Cathy; Montagnani, Caroline; Belliard, Corinne; Levy, Peva; Nedelec, Georges; Joufoques, Vaiana; Remoissenet, G.; Gueguen, Yannick; Cochennec-laureau, Nathalie.
Tipo: Text
Palavras-chave: Betanodavirus; Detection; French Polynesia; Genotype; Platax orbicularis.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00003/11380/7972.pdf

Problems and perspectives of the pearl oyster aquaculture in French Polynesia.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cabral, P.
The first attempt to obtain artificial pearls from the black-lip pearl oyster Pinctada margaritifera in French Polynesia dates back to 1963. The pearl oyster culture has grown quickly especially since the eighties. This industry is now the first exportation in value of French Polynesia. 19 atolls of the Tuamotus island have at this time one or more farms and this activity has more and more attractiveness. The rise of this industry has consequently a lot of socio-ecomic repercussions on these atolls. However, as a young industry, the technics and the development are not always controlled and a lot of problems appeared these last years.
Tipo: Text
Palavras-chave: French Polynesia; Pinctada margaritifera; Trade; Economic analysis; Harvesting; Hatcheries; Spat; Lagoons; Mortality; Oyster culture; Pearl oysters.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1494.pdf

Deep crustal structure of the Tuamotu plateau and Tahiti (French Polynesia) based on seismic refraction data - art. no. 1656
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Patriat, Martin; Klingelhoefer, Frauke; Aslanian, Daniel; Contrucci, Isabelle; Gutscher, Marc-andré; Talandier, Jacques; Avedik, Felix; Francheteau, Jean; Weigel, Wilfried.
[1] In French Polynesia, the young (&lt; 5Ma) Society Islands appear to result from intraplate volcanism, while the old (&gt;50 Ma) Tuamotu plateau was likely created at or near the ridge axis. The structure of the crust between those two archipelagoes is constrained by a 300 km long refraction seismic profile. Crustal and upper mantle arrivals recorded by 6 OBHs and 3 land stations were used to provide a 2D model of the crust. Results of our study, combined with that of Grevemeyer et al. [2001] show a slight flexure below the Tahiti apron, while a deep crustal root (21 km) underlies the Tuamotu plateau. These structures reflect the different modes of load emplacement and compensation mechanisms between these two volcanic edifices, consistent with an...
Tipo: Text
Palavras-chave: Volcanic Islands; Flexure; Hotspot; Refraction methods; French Polynesia.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-621.pdf

Tectus niloticus (Tegulidae, Gastropod) as a Novel Vector of Ciguatera Poisoning: Clinical Characterization and Follow-Up of a Mass Poisoning Event in Nuku Hiva Island (French Polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gatti, Clemence Mahana Iti; Lonati, Davide; Darius, Helene Taiana; Zancan, Arturo; Roue, Melanie; Schicchi, Azzurra; Locatelli, Carlo Alessandro; Chinain, Mireille.
Ciguatera fish poisoning (CFP) is the most prevalent non-bacterial food-borne form of poisoning in French Polynesia, which results from the consumption of coral reef fish naturally contaminated with ciguatoxins produced by dinoflagellates in the genus Gambierdiscus. Since the early 2000s, this French territory has also witnessed the emergence of atypical forms of ciguatera, known as ciguatera shellfish poisoning (CSP), associated with the consumption of marine invertebrates. In June 2014, nine tourists simultaneously developed a major and persistent poisoning syndrome following the consumption of the gastropod Tectus niloticus collected in Anaho, a secluded bay of Nuku Hiva Island (Marquesas Archipelago, French Polynesia). The unusual nature and severity...
Tipo: Text
Palavras-chave: Ciguatera poisoning; Tectus niloticus; Ciguatoxins; Health hazards; Clinical follow-up; Neurological exploration; French Polynesia.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00660/77228/78664.pdf

Evidence of donor effect on cultured pearl quality from a duplicated grafting experiment on Pinctada margaritifera using wild donors
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Tayale, Alexandre; Gueguen, Yannick; Treguier, Cathy; Le Grand, Jacqueline; Cochennec-laureau, Nathalie; Montagnani, Caroline; Ky, Chin-long.
Producing high quality cultured black pearls from Pinctada margaritifera is one of the major challenges for the "pearl oyster" industry in French Polynesia. In order to assess donor effect on cultured pearl quality, wild Pinctada margaritifera originating from the Tuamotu Archipelago were used in a duplicated grafting experiment. After 12 months of culture, nucleus retention was assessed and seven pearl quality traits recorded on the 454 cultured pearls harvested from the experiment. The traits scored were nacre thickness and pearl weight, surface defects, lustre, grade, and the colour components: 1) darkness of cultured pearl colour, and 2) visual perception of colour class (bodycolor and/or overtone). Our results demonstrate for the first time that...
Tipo: Text
Palavras-chave: Cultured pearl oyster; Pearl quality; Nacre; Donor mollusc; Genetic selection; Pteriidae; Blacklip pearl oyster; Pinctada margaritifera; French Polynesia.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00116/22757/20541.pdf

Ethnobotanical survey of cosmetic plants used in Marquesas Islands (French Polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Jost, Xenia; Ansel, Jean-luc; Lecellier, Gael; Raharivelomanana, Phila; Butaud, Jean-francois.
Background: Cosmetic plants and their uses have often been neglected in ethnobotanical surveys which focus mainly on plants with medicinal or food uses. Thus, this survey was carried out to specifically investigate cosmetics in a small community and to establish a cosmetopoeia, based on the model of pharmacopoeia for medicinal plants. The geographic spread of the survey covered the Marquesas Islands, one of the five archipelagos of French Polynesia (Pacific Ocean). This archipelago was also recently investigated for its pharmacopoeia. Methods: This survey is based on individual interviews of Marquesan informants on the islands of Tahiti (Society archipelago) and Nuku Hiva (Marquesas archipelago). The methodological approach was semi-directive with...
Tipo: Text
Palavras-chave: Cosmetopoeia; Cosmetics; French Polynesia; Marquesas Islands; Pacific Ocean; Ethnobotanical survey.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00664/77567/79532.pdf

Etude et modélisation des mécanismes impliqués dans la croissance de l'huître perlière, Pinctada margaritifera, au sein de l'écosystème conchylicole du lagon de l'atoll de Takapoto (Polynésie Française)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pouvreau, Stephane.
L'huître perlière, Pinctada margaritifera (Linné, 1758) var. cumingi (Reeve), productrice de perles noires, fait l' objet d'une aquaculture florissante en Polynésie Française. Afin de pérenniser cette activité, un programme de recherche (le PGRN) a été lancé, en 1990, sur l' atoll de Takapoto. L' un des thèmes de ce programme réside dans l'étude de la capacité trophique d'un lagon soumis à une activité de perliculture. A cet égard, un modèle déterministe expliquant la croissance et la reproduction de P. margaritifera à partir des paramètres du milieu (notamment la nourriture disponible) a été mis au point. La construction de ce modèle a impliqué : ( 1) l'analyse de l'hydrobiologie du lagon; (2) l'étude de la physiologie de P. margaritifera; (3) le sui vi...
Tipo: Text
Palavras-chave: Bivalves; Huîtres perlières; Pinctada margaritifera; Physiologie; Croissance; Reproduction; Hydrobiologie; Atoll; Lagon; Écosystème; Réseau trophique; Modélisation; Capacité trophique; Polynésie française; Bivalves; Pearl oyster; Pinctada ma rgaritifera; Physiology; Growth; Reproduction; Hydrobiology; Atoll; Lagoon; Ecosystem; Trophic web; Modelling; Carrying capacity; French Polynesia.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00034/14558/11856.pdf

Evolution technologique des DCP en Polynesie francaise
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Leproux, E.
French Polynesia started it's Fish Aggregating Device programme in June 1981 with the positioning of the first buoy offshore of the main island of Tahiti. Since then, 251 structures have been installed throughout the 5 archipelagoes of this French overseas territory. The shape and size of the devices have evolved 8 times over this period, however, a single model has not yet been adopted. Trials are currently underway using lighter structures similar to those found in the Indian Ocean. The anchoring lines have progressively been modified through better knowledge of material and product availability, as well as better understanding of environmental constraints. The programme is entirely financed by the territorial government and managed by the public sector....
Tipo: Text
Palavras-chave: Artisanal fishing Attracting techniques Bathymetry Fishermen Tuna fisheries Thunnidae Article Geographic Terms: French Polynesia ISE; Pacific; French Polynesia.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00042/15292/12649.pdf

Multi-scale distribution and dynamics of bivalve larvae in a deep atoll lagoon (Ahe, French Polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Thomas, Yoann; Garen, Pierre; Bennett, Auguste; Le Pennec, Marcel; Clavier, Jacques.
Bivalve larvae and hydrographic parameters were sampled over a range of spatio-temporal scales in a deep atoll lagoon. Bivalve larvae abundances were very high throughout the year: 18,550 m(-3) in average. Larvae were (i) concentrated at mid-depth with nocturnal ascent and diurnal descent, (ii) heterogeneously dispersed at the lagoon scale, (iii) subject to day-to-day variation in abundance and (iv) transferred between different parts of the lagoon providing evidence of intra-lagoonal connectivity. The primacy of physical factors was seen on large spatial scale with the diluting effect of water renewal and transfers by hydrodynamics. On smaller spatial scale, the primacy of biological processes was recognised, with larval swimming activity leading to dial...
Tipo: Text
Palavras-chave: Bivalve larvae; Distribution patterns; Vertical migration; Pinctada margaritifera settlement; Deep atoll lagoon; French Polynesia.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00101/21200/20690.pdf

Effects of pH and Nutrients (Nitrogen) on Growth and Toxin Profile of the Ciguatera-Causing Dinoflagellate Gambierdiscus polynesiensis (Dinophyceae)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Longo, Sébastien; Sibat, Manoella; Taiana Darius, Hélène; Hess, Philipp; Chinain, Mireille.
Ciguatera poisoning is a foodborne disease caused by the consumption of seafood contaminated with ciguatoxins (CTXs) produced by dinoflagellates in the genera Gambierdiscus and Fukuyoa. Ciguatera outbreaks are expected to increase worldwide with global change, in particular as a function of its main drivers, including changes in sea surface temperature, acidification, and coastal eutrophication. In French Polynesia, G. polynesiensis is regarded as the dominant source of CTXs entering the food web. The effects of pH (8.4, 8.2, and 7.9), Nitrogen:Phosphorus ratios (24N:1P vs. 48N:1P), and nitrogen source (nitrates vs. urea) on growth rate, biomass, CTX levels, and profiles were examined in four clones of G. polynesiensis at different culture age (D10, D21,...
Tipo: Text
Palavras-chave: Gambierdiscus polynesiensis; French Polynesia; Ciguatera; Ciguatoxins; LC-MS; MS; Toxin profile; Nitrate; Urea; Culture medium acidification.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00662/77382/78981.pdf

Liste des poissons côtiers de Polynésie française
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Siu, Gilles; Bacchet, Philippe; Bernardi, Giacomo; Brooks, Andrew J.; Carlot, Jeremy; Causse, Romain; Claudet, Joachim; Clua, Eric; Delrieu-trottin, Erwan; Espiau, Benoit; Harmelin-vivien, Mireille; Keith, Philippe; Lecchini, David; Madi-moussa, Rakamaly; Parravicini, Valeriano; Planes, Serge; Ponsonnet, Cedric; Randall, John E.; Sasal, Pierre; Taquet, Marc; Williams, Jeffrey T.; Galzin, Rene.
On the occasion of the 10th Indo-Pacific Fish Conference (http://ipfc10.criobe.pf/) to be held in Tahiti in October 2017, it seemed timely to update Randall's 1985 list of the fishes known from French Polynesia. Many studies focusing on fishes in this area have been published since 1985, but Randall's list remains the authoritative source. Herein we present an expanded species list of 1,301 fishes now known to occur in French Polynesia and we review the expeditions and information sources responsible for the over 60% increase in the number of known species since the publication of Randall's checklist in 1985. Our list of the fishes known from French Polynesia includes only those species with a reliably verifiable presence in these waters. In cases where...
Tipo: Text
Palavras-chave: Coral reef fishes; Deep and Pelagic fishes; Freshwater fishes; French Polynesia; Endemic fishes; Inventory.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00666/77826/80005.pdf

Gestion des ressources génétiques de l'huître perlière Pinctada margaritifera de Polynésie française : caractérisation génétique des populations et optimisation du recrutement pour l'exploitation perlière
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Arnaud, Sophie; Goyard, Emmanuel; Prou, Jean; Vonau, Vincent; Bonhomme, Francois; Boudry, Pierre.
Exploitation of the pearl oyster Pinetada margaritifera, which has developed in French Polynesia over the last twenty years, is based mainly on the collection of natural spat. Recruitment is highly variable in space and time and so spat is very often transferred by the farmers between atolls or even between archipelagos. In previous studies, anonymous nuclear markers demonstrated that This development has coincided with a genetic homogenisation of the wild stocks since the 1980s. This suggests a high level of reproductive success on farms, which is likely to be due to the high density of animaIs when compared to the density in the wild. We used the same markers to show that the level of genetic variability observed on farms is not significantly different...
Tipo: Text
Palavras-chave: French Polynesia; Genetic diversity; Spat; Pinctada margaritifera; Pearl oyster; Polynésie française; Diversité génétique; Naissain; Pinctada margaritifera; Huître perlière.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3822.PDF

Pinctada margaritifera responses to temperature and pH: Acclimation capabilities and physiological limits
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Moullac, Gilles; Soyez, Claude; Latchere, Oihana; Vidal-dupiol, Jeremie; Fremery, Juliette; Saulnier, Denis; Lo Yat, Alain; Belliard, Corinne; Mazouni-gaertner, Nabila; Gueguen, Yannick.
The pearl culture is one of the most lucrative aquacultures worldwide. In many South Pacific areas, it depends on the exploitation of the pearl oyster Pinctada margaritifera and relies entirely on the environmental conditions encountered in the lagoon. In this context, assessing the impact of climatic stressors, such as global warming and ocean acidification, on the functionality of the resource in terms of renewal and exploitation is fundamental. In this study, we experimentally addressed the impact of temperature (22, 26, 30 and 34 °C) and partial pressure of carbon dioxide pCO2 (294, 763 and 2485 μatm) on the biomineralization and metabolic capabilities of pearl oysters. While the energy metabolism was strongly dependent on temperature, results showed...
Tipo: Text
Palavras-chave: Global change; Pearl oyster; Bioenergetic; Biomineralization; Pacific ocean; French Polynesia.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00332/44364/43969.pdf

Compte-rendu d'activité du Laboratoire d'Aquaculture Tropicale. Période : Janvier à Décembre 1996
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: AQUACOP.
Progress r-eport of the different research programs of the tropical aquaculture Lab. of the «Centre Océanologique du Pacifique « (January to December 1996) : - Penaeid shrimp : Ecophysiology, Pathology, Nutrition, Genetics, Cryopreservation, Development physiology - Pearl oyster : Physiology, Ecophysiology, Nutrition  
Tipo: Text
Palavras-chave: Aquaculture tropicale; Pénéides; Huîtres perlières; Polynésie Française; Tropical aquaculture; Peneid shrimp; Pearl oyster; French Polynesia.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00429/54084/55394.pdf

Pearl Oysters Pinctada margaritifera grazing on natural plankton in Ahe atoll lagoon (Tuamotu archipelago, French Polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fournier, Jonathan; Dupuy, Celie; Bouvy, Marc; Couraudon-reale, Marine; Charpy, Loic; Pouvreau, Stephane; Le Moullac, Gilles; Le Pennec, Marie-annick; Cochard, Jean-claude.
In atoll lagoons of French Polynesia, growth and reproduction of pearl oysters are mainly driven by plankton concentration. However, the actual diet of black-lip pearl oysters P. margaritifera in these lagoons is poorly known. To fill this gap, we used the flow through chamber method to measure clearance rates of P. margaritifera in Ahe atoll lagoon (Tuamotu Archipelago, French Polynesia). We found : (i) that pearl oysters cleared plankton at a rate that was positively related to plankton biovolume, (ii) that nanoflagellates were the main source of carbon for the pearl oysters, (iii) that the quantity and origin of carbon filtrated by pearl oysters was highly dependent on the concentration and composition of plankton. These results provide essential...
Tipo: Text
Palavras-chave: Pinctada margaritifera; Clearance rates; French Polynesia; Phytoplankton; Protists.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00078/18888/16599.pdf

Phytoplankton composition and selective feeding of the pearl oyster Pinctada margaritifera in the Takapoto lagoon (Tuamotu Archipelago, French Polynesia): in situ study using optical microscopy and HPLC pigment analysis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Loret, P; Pastoureaud, Annie; Bacher, Cedric; Delesalle, B.
The in situ diet of the pearl oyster Pinctada margarifera was determined in the lagoon of Takapoto Atoll by comparing the phytoplankton composition of water and bivalve gut contents using 2 different methods, optical microscopy and HPLC pigment analysis. In order to evaluate the available food resources for pearl oysters in the water column, a new method for estimating the pigment/chlorophyll a (chl a) ratio (based on an inverse analysis) was developed which allowed us to determine the contribution of the main phytoplanktonic groups in terms of chi a. In the water, picocyanobacteria and nanoflagellates predominated, the latter being mainly chlorophytes and prymnesiophytes. Comparisons between the results obtained by the 2 methods of investigation indicated...
Tipo: Text
Palavras-chave: Pearl oyster Pinctada margaritifera; Selective feeding; Natural diet; Phytoplankton pigments; Coral reefs; French Polynesia.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00000/10992/7606.pdf

Gametogenic cycle and reproductive effort of the tropical blacklip pearl oyster, Pinctada margaritifera (Bivalvia : Pteriidae), cultivated in Takapoto atoll (French Polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pouvreau, Stephane; Gangnery, Aline; Tiapari, Jerome; Lagarde, Franck; Garnier, Matthieu; Bodoy, Alain.
The gametogenic cycle and the reproductive effort of the blacklip pearl oyster, Pinctada margaritifera, cultivated in Takapoto lagoon were studied for a 1-year period (March 1997-April 1998) by bimonthly observations of gonadal sections, dry tissue weights and gonadal index in a population of pearl oyster composed of three age-groups. pearl oysters attained sexual maturity in the end of their first year (height approximate to 40 mm), implying that P. margaritifera is a late-maturing species in comparison with other Pteriidae. This species was also confirmed to be a marked protandrous successive hermaphrodite in culture, with 100 % of males at first maturity and 75 % in older pearl oyster (height &gt; 120 mm). The general pattern of gametogenic activity,...
Tipo: Text
Palavras-chave: French Polynesia; Reproductive effort; Reproductive cycle; Tropical aquaculture; Gametogenesis; Blacklip pearl oyster; Polynésie française; Effort de reproduction; Cycle de reproduction; Aquaculture tropicale; Gamétogenèse; Huître perlière.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-1391.pdf

Revisiting wild stocks of black lip oyster Pinctada margaritifera in the Tuamotu Archipelago: the case of Ahe and Takaroa atolls and implications for the cultured pearl industry
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Andrefouet, Serge; Thomas, Yoann; Dumas, Franck; Lo, Cedrik.
Spat collecting of the black lip oyster (Pinctada margaritifera) is the foundation of cultured black pearl production, the second source of income for French Polynesia. To understand spat collecting temporal and spatial variations, larval supply and its origin need to be characterized. To achieve this, it is necessary to account for the stock of oysters, its distribution and population characteristics (size distribution, sex-ratio). While the farmed stock in concessions can be easily characterized, the wild stock is elusive. Here, we investigate the distribution and population structure of the wild stock of Ahe and Takaroa atolls using fine-scale bathymetry and in situ census data. Stocks were surprisingly low (∼666,000 and ∼1,030,000 oysters for Ahe and...
Tipo: Text
Palavras-chave: Invertebrate population; Aquaculture; Spat collecting; French Polynesia; Atoll bathymetry; Wild stock assessment.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00343/45412/49287.pdf

Influence of plankton concentration on gametogenesis and spawning of the black lip pearl oyster Pinctada margaritifera in Ahe atoll lagoon (Tuamotu archipelago, French polynesia)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fournier, Jonathan; Levesque, Emmanuelle; Pouvreau, Stephane; Le Pennec, Marcel; Le Moullac, Gilles.
Pearl culture industry represents one of the dominant business sector of French Polynesia. However, it still entirely relies on unpredictable spat collection success. Our aim was to assess the influence of natural plankton concentration fluctuations on maturation and spawning of the black lip pearl oyster Pinctada margaritifera, during a 4 months survey conducted in Ahe atoll lagoon. Plankton concentration was assessed by chlorophyll a extraction and by microscope counts while gonadic index, gonado-visceral dry weights and histology were used to measure pearl oysters reproduction activity. We found that (i) plankton concentration fluctuations were mainly related to wind regime, (ii) gametogenesis rate was mainly related to plankton concentration, (iii)...
Tipo: Text
Palavras-chave: Pearl Oyster; Gametogenesis; Spawning; Phytoplankton; French Polynesia.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00101/21201/19697.pdf

Ecologie larvaire de l'huître perlière (Pinctada margaritifera, L.), croissance et dispersion dans un lagon d'atoll polynésien
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Thomas, Yoann.
Understanding key factors determining the bentho-pelagic species larval growth and dispersal remains one of the challenges of marine ecology, notably to understand the adult population structure and dynamics. In the present study, we explore this determinism on the development and dispersal of the black-lip pearl oyster (Pinctada margaritifera var. cumingii, Linné 1758) larvae in a French Polynesian atoll lagoon (Ahe, Tuamotu archipelago). Rearing of the pearl oyster for the production of black pearls takes on a major social and economic place in French Polynesia. However, the supply of pearl oyster seed to the farms depends entirely on the natural collection of wild spat of the only one specie P. margaritifera, and spatial and temporal variability of spat...
Tipo: Text
Palavras-chave: Ecologie larvaire; Hétérogénéité environnementale; Modélisation; Croissance; Dispersion; Huître perlière à lèvres noires; Pinctada margaritifera; Lagon d’atoll; Polynésie française; Larval ecology; Environmental heterogeneity; Modeling; Growth; Dispersal; Black-lip pearl oyster; Pinctada margaritifera; Atoll lagoon; French Polynesia.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00003/11449/7999.pdf

Family effect on cultured pearl quality in black-lipped pearl oyster Pinctada margaritifera and insights for genetic improvement
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ky, Chin-long; Blay, Carole; Sham-koua, Manaarii; Vanaa, Vincent; Lo, Cedrik; Cabral, Philippe.
Individual Pinctada margaritifera molluscs were collected from the Takapoto atoll (Tuamotu Archipelago, French Polynesia) and used to produce ten first generation full-sib families in a hatchery system, following artificial breeding protocols. After three years of culture, these progenies were transferred to Rangiroa atoll (Tuamotu Archipelago, French Polynesia) and tested for their potential as graft donors. A large-scale grafting experiment of 1500 grafts was conducted, in which a single professional grafter used ten individual donor oysters from each of the ten families, grafting 15 recipient oysters from each donor. The recipient oysters were all obtained from wild spat collection in Ahe (Tuamotu Archipelago, French Polynesia). After 18 months of...
Tipo: Text
Palavras-chave: Cultured pearl oyster; Pearl quality; Progeny effects; Heritability; Genetic selection; Pinctada margaritifera; French Polynesia.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00152/26310/24380.pdf

Young Marquesas volcanism finally located
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Revillon, Sidonie; Guillou, Herve; Maury, Rene C.; Chauvel, Catherine; Aslanian, Daniel; Pelleter, Ewan; Scao, Vincent; Loubrieu, Benoit; Patriat, Martin.
The Marquesas Island chain in Polynesia is quite unusual because the alignment of the islands on the Pacific oceanic plate (N40°W) does not follow the plate motion in the region (N65°W). The exact location of the active hotspot is unknown but has been predicted to underlie the Marquesas Fracture Zone Ridge. Nevertheless, no concrete evidence exists. Here, we document the occurrence on this ridge of fresh tephrites dated at ~ 92 ka by the 40Ar-39Ar method. The lavas dredged on a small seamount have trace element contents and Sr, Nd, Pb isotopic compositions typical of the southwest Marquesas Islands, the Fatu Hiva group. This discovery demonstrates that the Marquesas plume is still active and it puts new constraints on its present location. It also supports...
Tipo: Text
Palavras-chave: Submarine volcanism; Ar-40-Ar-39 ages; Geochemistry; Plume; Marquesas; French Polynesia.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00407/51832/52431.pdf

The sexuality of cultured hermaphroditic fish species: Analysis of morphological and endocrinological features in a protogynous hermaphrodite, Epinephelus microdon , as a basis for further research to control reproduction in the grouper
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Debas, L; Fostier, A; Fuchs, Jacques; Weppe, M; Nedelec, Georges; Benett, A; Cauty, C; Jalabert, B.
The Polynesian grouper, Epinephelus microdon , was chosen as an experimental model in order to investigate about factors controlling sexuality in groupers.
Tipo: Text
Palavras-chave: French Polynesia; Epinephelus microdon; Sex ratio; Sexual maturity; Sex hormones; Sex determination; Sex; Fish culture; Endocrinology; Reproduction; Sex reversal; Animal morphology.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1439.pdf

Developmental aspects of biomineralisation in the Polynesian pearl oyster Pinctada margaritifera var. cumingii
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Che, Lm; Golubic, S; Le Campion-alsumard, T; Payri, C.
The shell biomineralisation with special reference to the nacreous region is observed during the development of the Polynesian pearl oyster. Ultrastructural changes were studied and timed for the first time from planktonic larval shells to two-year-old adult shells. During the first two weeks following fertilization, the prodissoconch-I shell structure is undifferentiated and uniformly granular. The prodissoconch-II stage which develops during the next two weeks acquires a columnar organization. Metamorphosis is characterized by the formation of the dissoconch shell with all the elements of an adult shell and marks the onset of the development of the nacre. Nucleation starts within an organic matrix from point sources forming 'crystal germs' which expand...
Tipo: Text
Palavras-chave: Biominéralisation; Couche nacrée; Huître perlière; Pinctada margaritifera; Polynésie française; Biomineralisation; Nacreous layer; Pearl oyster; Pinctada margaritifera; French Polynesia.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00291/40268/38642.pdf

Integrated management of pearl culture in French Polynesia in the context of global change: Synopsis of existing results
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gueguen, Yannick; Gaertner-mazouni, Nabila; Lo, Cedrik; Le Moullac, Gilles.
The paper presents a state of the art on knowledge of the black pearl oyster aquaculture at the scale of French Polynesia. It also introduces the main results obtained throughout the multi-partners POLYPERL project. The goal of this project was to develop an integrated and participative action-research of the pearl oyster culture system, focusing on the environmental, technological, economical and societal dimensions impacting the industry. The research proposed ranges from the understanding of biological phenomena of the production system to socio-economic aspects and governance of the industry, taking into account the management of anthropogenic, climate and health risks. We introduce here the different papers from the POLYPERL project that are compiled...
Tipo: Text
Palavras-chave: Pearl culture; Global change; French Polynesia; Pinctada margaritifera.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00346/45698/45320.pdf

Compte-rendu d'activité du Laboratoire d'Aquaculture Tropicale. Période : Janvier à Décembre 1997
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: AQUACOP.
Progress report of the different research programs of the tropical aquaculture laboratory of the « Centre Océanologique du Pacifique » (January to December 1997) : - Penaeid shrimp : Ecophysiology, Pathology, Nutrition, Genetics, Cryopreservation, Development physiology - Pearl oyster : Physiology, Ecophysiology, Nutrition
Tipo: Text
Palavras-chave: Aquaculture tropicale; Pénéides; Huîtres perlières; Polynésie Française; Tropical aquaculture; Peneid shrimp; Pearl oyster; French Polynesia.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00429/54067/55377.pdf

Aspects économiques et techniques de la perliculture en Polynésie Française. Contribution à l'étude de l'alimentation de l'huître perlière Pinctada margaritifera
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Hautefeuille, Fanny.
Cultured black pearls are now the tirst export value of French Polynesia. This fast growing activity encourage the retum of the islanders to their native islands and the revival of the economy of the archipelagoes. However, the importance of the development induced sorne technical and economical problems. New reglementations are needed to organize the market and stabilize the black pearl price, the quotation of which is falling since 1990. After the important mortalities which occured in 1985-1 986, the mother of pearl general investigation program was set up. Il aims at the study of the biology and the ecology of the mother of pearl Pinclada margaritifera. The study of the nutrition of this oyster is part of this program and will contribute to the...
Tipo: Text
Palavras-chave: Perliculture; Polynésie Française; Problèmes; Bivalve; Huître perlière; Pinctada margaritifera; Bilan énergétique; Contenu stomacal; Assimilation; Conover; Perliculture; French Polynesia; Problems; Bivalvia; Pearl oyster; Pinctada margaritifera; Energetic balance; Stomacal contents; Assimilation; Conover.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00424/53540/54397.pdf

Compte-rendu d'activité du Laboratoire d'Aquaculture Tropicale. Période : Janvier à Décembre 1995
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: AQUACOP.
Progress report of the different laboratories of the "Centre Océanologique du Pacifique" (January to December 1995) : - Peneid shrimp : Ecophysiology, Pathology, Nutrition, Genetics, Cryopreservation, Development physiology - Pearl oyster : Ecophysiology, Nutrition
Tipo: Text
Palavras-chave: Aquaculture tropicale; Pénéides; Huîtres perlières; Polynésie Française; Tropical aquaculture; Peneid shrimp; Pearl oyster; French Polynesia.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00428/53980/55141.pdf

The French Polynesian experience (Pearl oyster management, a manual)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Berthe, Franck; Prou, Jean.
French Polynesia is currently the world's largest producer of cultured black pearls with exports worth U5$150 millions annually. The activity has become of prime socioeconomic importance the archipelagos with strong support and control of the government. In the mid-1980s, mass mortality of the black-lipped pearl oyster, Pinctada margarltlfera, has occurred in several atolls and challenged the development of pearl farming activity. Consequent studies and surveys have described several pathological conditions. None of those is considered to pose significant threat to the industry. However, they are monitored by a surveillance program in order to prevent and control emerging diseases. The government of French Polynesia has developed efforts to maintain high...
Tipo: Text
Palavras-chave: Health management; Pinctada margaritifera; French Polynesia; Pathogens; Mass mortality.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3703.PDF

Response of the pearl oyster Pinctada margaritifera to cadmium and chromium: Identification of molecular biomarkers
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gueguen, Yannick; Saulnier, Denis; Santini, Adrien; Magre, Kevin; Garen, Pierre; Bernagout, Solene; Nohl, Marine; Bouisset, Patrick; Helme, Herehia; Planes, Serge; Le Moullac, Gilles.
This study was designed to identify in the pearl oyster Pinctada margaritifera, used as a bio-accumulator, molecular biomarkers for the presence of heavy metals in the lagoon environment. Pearl oysters were exposed to 2 concentrations (1 and 10 μg L− 1) of cadmium (Cd) and chromium (Cr) compared to a control. Twelve target genes encoding proteins potentially involved in the response to heavy metal contamination with antioxidant, detoxification or apoptosis activities were selected. P. margaritifera accumulated Cd but not Cr, and mortality was related to the amount of Cd accumulated in tissues. In response to Cd-Cr contamination, metallothionein (MT) was significantly up-regulated by Cd-Cr at both concentrations, while 7 others (SOD, CAT, GPX, GSTO, GSTM,...
Tipo: Text
Palavras-chave: Pinctada margaritifera; French Polynesia; Cadmium; Chromium; Gene expression; Metallothionein.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00376/48707/49146.pdf

Impact of pCO2 on the energy, reproduction and growth of the shell of the pearl oyster Pinctada margaritifera
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Moullac, Gilles; Soyez, Claude; Vidal-dupiol, Jeremie; Belliard, Corinne; Fievet, Julie; Sham-koua, Manaarii; Lo-yat, Alain; Saulnier, Denis; Gaertner-mazouni, N.; Gueguen, Yannick.
The possible consequences of acidification on pearl farming are disruption of oyster metabolism and change in growth. In the laboratory, we studied the impact of pCO2 (3540, 1338 and 541μatm) on the physiology of pearl oysters exposed for 100 days. This experiment was repeated after an interval of one year. Several physiological compartments were examined in pearl oysters: the scope for growth by measuring ingestion, assimilation and oxygen consumption, gametogenesis by means of histological observations, shell growth by measurement and observation by optical and electronic microscopy, and at molecular level by measuring the expression of nine genes of mantle cells implied in the biomineralisation process. Results from both experiments showed that high...
Tipo: Text
Palavras-chave: Global change; Pearl oyster; Bioenergetic; Biomineralization; Pacific Ocean; French Polynesia.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00321/43189/42737.pdf

Evidence for the Range Expansion of Ciguatera in French Polynesia: A Revisit of the 2009 Mass-Poisoning Outbreak in Rapa Island (Australes Archipelago)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Chinain, Mireille; Mahana Iti Gatti, Clémence; Ung, André; Cruchet, Philippe; Revel, Taina; Viallon, Jérôme; Sibat, Manoella; Varney, Patrick; Laurent, Victoire; Hess, Philipp; Taiana Darius, Hélène.
Ciguatera poisoning (CP) results from the consumption of seafood contaminated with ciguatoxins (CTXs). This disease is highly prevalent in French Polynesia with several well-identified hotspots. Rapa Island, the southernmost inhabited island in the country, was reportedly free of CP until 2007. This study describes the integrated approach used to investigate the etiology of a fatal mass-poisoning outbreak that occurred in Rapa in 2009. Symptoms reported in patients were evocative of ciguatera. Several Gambierdiscus field samples collected from benthic assemblages tested positive by the receptor binding assay (RBA). Additionally, the toxicity screening of ≈250 fish by RBA indicated ≈78% of fish could contain CTXs. The presence of CTXs in fish was confirmed...
Tipo: Text
Palavras-chave: Ciguatera poisoning; French Polynesia; Gambierdiscus; Ciguatoxins; Epidemiology; Toxicological analyses; Risk management; Climate change.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00662/77362/78933.pdf

Heterospecific foraging associations between reef‐associated sharks: first evidence of kleptoparasitism in sharks
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Labourgade, Pierre; Ballesta, Laurent; Huveneers, Charlie; Papastamatiou, Yannis; Mourier, Johann.
Social foraging allows groups of predators to search for, pursue, and capture prey with greater efficiency than using solitary hunting. It can vary in complexity and take many forms ranging from cooperative hunting, to social information sharing and local enhancement (Lang and Farine 2017). Theoretical and empirical studies support the advantages of group foraging, although there will be trade‐offs between benefits, such as increased prey detection or capture success, and costs such as increased competition amongst group members (Gil et al. 2017).
Tipo: Text
Palavras-chave: Carcharhinus amblyrhynchos; Foraging strategy; French Polynesia; Reef shark; Species interaction; Triaenodon obesus.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00632/74456/74272.pdf

Is sustainable development a motor or a constraint for the professionalization of the pearl oyster industry in tahiti?
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rey-valette, Helene; Lacoste, Elise; Perez, Jose; Raux, Pascal; Gaertner, Jean-claude; Gaertner-mazouni, Nabila.
This article reports the results of a survey of the pearl oyster industry in French Polynesia territory. Its purpose is to examine the perceptions of the priorities for the development of this industry towards sustainable development. These perceptions were apprehended by a survey of pearl oyster farmers and other stakeholders of the sector (management authorities, scientists). After describing the methodological protocol of these investigations, it comes to confront the priorities chosen by professionals (i.e. pearl farmers) concerning sustainable development, with the perceptions of others stakeholders in the sector. Secondly it comes to build a typology of the priorities of pearl farmers concerning sustainable development. This analysis enables the...
Tipo: Text
Palavras-chave: Sustainable development; Pearl oyster farming; Perceptions; Collective learning process; Indicators; French Polynesia.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00288/39918/38479.pdf

Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dijkstra, H.H.; Maestrati, P.
Eighteen species of Pectinoidea (six Propeamussiidae Abbott, 1954, one Entoliidae Teppner, 1922, eleven Pectinidae Rafinesque, 1815) are listed from the Tarava Seamounts, Society Islands and Tuamotu Archipelago, French Polynesia. Four Propeamussiidae species (Parvamussium lamellatum n. sp., Parvamussium scutulatum n. sp., Parvamussium vesiculosum n. sp., Cyclopecten comptulus n. sp.) are new to science.
Tipo: Article / Letter to the editor
Palavras-chave: Bivalvia; French Polynesia; Littoral; Bathyal; New species; New records; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/460188

Hydroids from French Polynesia with notes on distribution and ecology
Provedor de dados: Naturalis Digital Academic Repository
Autores: Vervoort, W.; Vasseur, P.
INTRODUCTION  Distribution and ecology of hydroids from coral reefs of high islands and atolls of French Polynesia so far have received little attention. Redier (1967, 1971) published a preliminary list of 14 species from Salvat's collections, sampled during several trips to Tahiti, Tuamoto (Mururoa, Reao and Maturei Vavao Atolls), to the Australes Islands (Rapa) and to Gambier.   The present paper results from researches carried out by one of us (P.V.)  concerning the benthic bionomy of reef sciophilous communities of hard bottoms. They have been carried out at Tiahura, Moorea, Society Islands (fig. IA) and on Takapoto Atoll, Tuamoto Archipelago (fig. 2A) in 1973 and 1974. They gave us occasion to compile a revised list of about 22 species of hydroids...
Tipo: Article / Letter to the editor
Palavras-chave: Hydroids; Ecology; Distribution; French Polynesia; 42.72.
Ano: 1977
URL: http://www.repository.naturalis.nl/record/323934

Atmospheric particulate element concentrations and deposition rates in French Polynesia
Provedor de dados: Open Marine Archive
Autores: Rojas, C.M.; Injuk, J.; Van Grieken, R.E.; Maenhaut, W.
Over a period of eight months, a total of 26 atmospheric particulate matter samples were collected at the location of Tahiti and in other areas of French Polynesia, using a specially equipped sailboat. A 6-stage cascade impact or was used to separate aerosols in the following size classes: &gt; 4,2-4, 1-2,0.5-1,0.25-0.5 and &lt; 0.25 µm equivalent aerodynamic diameter. The resulting set of 156 size segregated aerosol samples was analyzed by particle-induced X-ray emission for 16 elements. This study deals with the concentrations of Na, Mg, Al, Si, S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Br, Sr and Pb. Enrichment factor calculations reveal that Na, Mg, S, A, K, Ca and Sr were little fractionated with respect to bulk sea water, whereas Al, Si, Ti, Mn and Fe...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Heavy metals Multivariate analysis Sedimentary environments ISE; French Polynesia.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7134

Socio-Economics of Pearl Culture: Industry Changes and Comparisons focusing on Australia and French Polynesia
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Tisdell,   Clement A.; Poirine,   Bernard.
Concentrates on comparing socio-economic aspects of pearl culture in Australia, which mostly relies on the culture of the South Sea pearl oyster P. maxima, with that in French Polynesia which depends on the culture of the black-lipped pearl oyster P. margaritifera.  Australian culture of pearl oysters dates from the 1950s whereas culture of black pearls in French Polynesia dates from the second half of the 1970s.  After briefly outlining the history of pearl culture in Australia and Tahiti, this paper provides an overview of the industry, comparative structure of the industry in Australia and French Polynesia and its technologies.  Socio-economic impacts, especially regional impacts, of the industry are considered.  Market characteristics (such as  prices...
Tipo: Working or Discussion Paper
Palavras-chave: Pearl oyster; Pearls; Australian Pearl Industry; French Polynesia; Crop Production/Industries; International Relations/Trade; Production Economics.
Ano: 1998
URL: http://purl.umn.edu/47952