Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 82
Primeira ... 12345 ... Última
Imagem não selecionada

Imprime registro no formato completo
A habitat-based simulation framework to design tag-recapture experiments for tunas in the Indian Ocean. Application to the skipjack (Katsuwonus pelamis) population. OceanDocs
Olivier, M.A.Y..
The IOTC initiated a discussion to organize a large scale tagging program concerning the major tropical tuna species and fisheries. According to the terms of reference for the working party on tagging (Anon., 1999), prospective simulations are needed to help designing tag -recapture experiments. The purpose of this paper is to present the methodology developed to help designing the future tagging program. It is based on three stages: tag recovery simulations with an habitat -based advection-diffusion-reaction model; bootstrapping of the recovery data sets; population parameter estimation and comparison of scenarii. Different scenarii are studied to check the reliability of the method and its ability to compare various t agging experimental designs....
Tipo: Proceedings Paper Palavras-chave: Tagging Stock assessment Tuna fisheries Marking ISW; Indian Ocean.
Ano: 1998 URL: http://hdl.handle.net/1834/67
Imagem não selecionada

Imprime registro no formato completo
A new interstitial flatworm (Turbellaria: Promesostomidae) from the Indian Ocean Naturalis
Clerck, G.G. De.
Paraproboscifer alacerregis, representing a new genus and a new species of the interstitial typloplanoid flatworms is described from the Seychelles and Kenya. It is placed in the turbellarian family Promesostomidae, The type locality is on Mahé Island, Seychelles.
Tipo: Article / Letter to the editor Palavras-chave: Turbellaria; Typhloplanoida; Promesostomidae; Indian Ocean; Seychelles; Kenya.; 42.76.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/317638
Imagem não selecionada

Imprime registro no formato completo
A worldwide review of purse seine fisheries on FADs ArchiMer
Fonteneau, Alain; Pallares, P; Pianet, Renaud.
This paper develops a comparative overview of the development of Fish Aggregating Devices (or fads) by the tropical purse seine fisheries in various ocean areas (Atlantic, Indian, Western and Eastern Pacific Oceans). First, a comparative review of fishery statistics is developed. Recent catches on fads by purse seiners can be estimated at a level of one million tons yearly. This comparison allows to describe the fishing zones and catch trends over time, the species composition and size taken in the various fad fisheries. Skipjack tuna is the dominant species in most fad fisheries, but significant amounts of yellowfin and bigeye are also frequently taken under fads. The paper also presents an overview of various observer data concerning the by-catches of...
Tipo: Text Palavras-chave: Attracting techniques Fisheries Purse seines Size Tuna fisheries Article Geographic Terms: A; Atlantic I; Pacific ISW; Indian Ocean.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00042/15278/12664.pdf
Imagem não selecionada

Imprime registro no formato completo
Analyse fonctionnelle des causes de rupture des DCP de la Réunion (océan Indien) ArchiMer
Sacchi, Jacques; Tessier, E.
The development of the FAD gave rise to technical problems owing to their conception, their setting spot and of their utilisation. Failings generated by the unreliability of components or the uncertain repair precariousness, those can prove to be here more and more expensive with the progression of the ageing of devices and reasons of their loss. For as various domains that aerospace or the fishing deck layout, the engineering has functional analysis tools that permit to reduce conception uncertainties of systems by the mean of a hierarchical classification of function values of components. The application of one of these techniques, the FMEA, Failure Mode and Effects Analysis, to the study of reasons of FAD loss in La Reunion describes perfectly...
Tipo: Text Palavras-chave: Analysis Attracting techniques Risks Tuna fisheries Article Geographic Terms: ISW; Indian Ocean ISW; Indian Ocean; Mascarene Is.; Reunion.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00042/15289/12675.pdf
Imagem não selecionada

Imprime registro no formato completo
Analysis of small-scale movements of yellowfin tuna around fish-aggregating devices (FADS) using sonic tags OceanDocs
Marsac, F.; Cayré, P.; Conand, F..
The ongoing ultrasonic experiments of phase 2 of the Regional Tuna Project (Commission de l'Ocean Indien) are reported and analysed in relation to the local environmental parameters. Although 7 yellowfin tuna (Thunnus albacares) were tagged during the first 3 cruises of the project, only 5 of them are considered in this paper, as they were tracked around FADs. Seasonal trends affect the horizontal movements associated with FADs: strong association and homing behaviour during the fishing season vs. weaker association when the fishing season comes to an end and the fish start migrating from the area. The vertical movements are analysed in order to provide a typology of the distribution of tuna in relation to different features (FAD association by day and at...
Tipo: Proceedings Paper Palavras-chave: Tuna fisheries Fishery surveys Tagging Sonic tags Local movements Migrations Environmental conditions Thunnus albacares ISW; Indian Ocean.
Ano: 1996 URL: http://hdl.handle.net/1834/16
Imagem não selecionada

Imprime registro no formato completo
Anisotropic Tomography Around La Reunion Island From Rayleigh Waves ArchiMer
Mazzullo, Alessandro; Stutzmann, Eleonore; Montagner, Jean-paul; Kiselev, Sergey; Maurya, Satish; Barruol, Guilhem; Sigloch, Karin.
In the western Indian Ocean, the Reunion hot spot is one of the most active volcanoes on Earth. Temporal interactions between ridges and plumes have shaped the structure of the zone. This study investigates the mantle structure using data from the Reunion Hotspot and Upper Mantle-Reunions Unterer Mantel (RHUM-RUM) project, which significantly increased the seismic coverage of the western part of the Indian Ocean. For more than 1year, 57 ocean bottom seismometer stations and 23 temporary land stations were deployed over this area. For each earthquake station path, the Rayleigh wave fundamental mode phase velocities were measured for the periods from 30s to 300s and group velocities for the period from 16s to 250s. A three-dimensional model of the shear...
Tipo: Text Palavras-chave: Tomography; Indian Ocean; Seismic anisotropy; Hot spot ridge; Upper mantle.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00600/71180/69533.pdf
Imagem não selecionada

Imprime registro no formato completo
Avian biogeography on western Indian Ocean islands: eustatic sea levels, geological events and anthropogenic changes Naturalis
Hume, J.P..
The south-western Indian Ocean islands, excluding the microcontinent of Madagascar, are geologically complex and diverse. They have been subject to drastic sea level changes, volcanic events and anthropogenic changes, all of which have contributed to confuse understanding of their avian biogeography. An array of factors have affected these avifaunas, based on palaeontological, historical and molecular evidence,which together have shown that avian biogeography is not congruent with the relative age and size of the islands.
Tipo: Article / Letter to the editor Palavras-chave: Aves; Biogeography; Indian Ocean; Palaeoecology; Geology; 42.83; 42.65.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/428484
Imagem não selecionada

Imprime registro no formato completo
Behavior of dolphinfish (Coryphaena hippurus) around drifting FADs as observed from automated acoustic receivers ArchiMer
Taquet, Marc; Dagorn, L; Gaertner, J; Girard, C; Aumerruddy, R; Sancho, G; Itano, D.
To study the behavior of dolphinfish (Coryphaena hippurus) around drifting Fish Aggregating Devices (FADs), we tagged individuals with long-lived, coded sonic transmitters and attached automated sonic receivers to drifting FADs in two regions of the Western Indian Ocean. Among the three tagging methods used in this study (surgery, external hooks, underwater bait without capture), the latest resulted in residence times significantly shorter than the other ones, likely due to regurgitation. Dolphinfish tagged with the two other methods usually stayed several days associated to FADs (Kaplan-Meier survival analysis 5.09 days, mean 6.25 days, SD 4.39 days, maximum 15.26 days), drifting with them. There was no significant difference in the residence times of...
Tipo: Text Palavras-chave: Indian Ocean; Meeting point; Ecological trap; Behavior of fish; Ultrasonic telemetry; Acoustic tagging; FAD; Dolphinfish.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3733.pdf
Imagem não selecionada

Imprime registro no formato completo
Bimeria vestita (Hydrozoa: Anthomedusae: Bougainvilliidae) senior synonym of Eudendrium vestitum (Hydrozoa: Anthomedusae: Eudendriidae) Naturalis
Marques, A.C.; Mergner, H.; Höinghaus, R.; Vervoort, W..
After studying the type specimens we conclude that the species Eudendrium vestitum Allman, 1888, is a junior synonym of the cosmopolitan bougainvilliid Bimeria vestita Wright, 1859. A redescription accompanied by optical micro- and SEM photographs of the species is presented.
Tipo: Article / Letter to the editor Palavras-chave: Hydrozoa; Bimeria; Eudendrium; Taxonomy; Indian Ocean; Heard Island; Synonymy; 42.79.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/216178
Imagem não selecionada

Imprime registro no formato completo
Bycatch in the purse seine tuna fisheries in the western Indian Ocean. OceanDocs
Romanov, E.V..
The yield of associated and dependent species taken as bycatch by the purse seine tuna fishery from the Indian Ocean pelagic ecosystem is estimated from data collected by scientific observers aboard Soviet purse seiners in the Western Indian Ocean (WIO), 1986-1992. A total of 494 sets on free swimming schools, whale shark associated schools, whale associated schools, and log associated schools were analyzed. More than 40 fish species and other marine animals were registered. Among them only two species, yellowfin and skipjack tunas, are target species. Average levels of non-tuna bycatch equal 0.518 t per set, 27.2 t for 1,000 t of target species. By the author’s estimates, the annual catch of yellowfin and skipjack tunas in 1990-1995 of the total...
Tipo: Proceedings Paper Palavras-chave: Tuna fisheries By-catch Purse seining ISW; Indian Ocean.
Ano: 1998 URL: http://hdl.handle.net/1834/45
Imagem não selecionada

Imprime registro no formato completo
Calculation of the Nominal Catches of vessels Not Elsewhere Included (NEI) within the IOTC Area. OceanDocs
IOTC.
The acronym NEI (Not Elsewhere Included) has usually been used to record the catches by vessels or fleets which are not officially reported to the IOTC.
Tipo: Proceedings Paper Palavras-chave: Catch statistics Fishing vessels ISW; Indian Ocean.
Ano: 2000 URL: http://hdl.handle.net/1834/41
Imagem não selecionada

Imprime registro no formato completo
Catch status of tropical tunas and swordfish by Taiwan deep sea tuna fishery in the Indian ocean in 1999. OceanDocs
Chang, S.K.; Liu, H.C..
There were about 341 deep-sea longliners operating in the Indian Ocean (small longliners operating in the northeast Indian Ocean were not included) in 1999, about the same level to 1998. The total catch made by these longliners was roughly estimated as 99,000 MT, a decrease of about 11,000 MT from 1998. The drop of yellowfin tuna by 5,700 MT was the main cause, followed by decreases of bigeye tuna by 2,600 MT and swordfish by 2,100 MT. This decrease in catch might be due to the unfavorable fishing condition around the traditional fishing grounds in the Indian Ocean. In general, the total catch of tunas and billfishes was around 93,000-110,000 MT from 1992 to the present except the relatively high catch in 1993. 'Research Group' Overseas Fisheries...
Tipo: Proceedings Paper Palavras-chave: Catch statistics Tuna fisheries Longlining Catching method ISW; Indian Ocean.
Ano: 2000 URL: http://hdl.handle.net/1834/72
Imagem não selecionada

Imprime registro no formato completo
Cephalopods from the Netherlands Indian Ocean Programme (NIOP) (Expeditions 1992-1993) Naturalis
Salcedo-Vargas, Mario Alejandro.
Cephalopods of the Red Sea, Gulf of Aden and the Western Indian ocean off Somalia are studied. A preliminary annotated list is presented. This study was based on the examination of 381 specimens captured with a Rectangular Midwater Trawl (RMT8) during three cruises of the Netherlands Indian Ocean Programme. The taxa identified represent: 22 families, 35 genera and 56 species. Two species new to science are found. Systematic position and taxonomic re-evaluation in the Chiroteuthidae, Mastigoteuthidae and Octopodidae is briefly discussed. The present collections represent a valuable contribution to the species composition from the Western Indian Ocean and to cephalopod juvenile morphology.
Tipo: Article / Letter to the editor Palavras-chave: Cephalopoda; Taxonomic list; Indian Ocean; Red Sea.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/505359
Imagem não selecionada

Imprime registro no formato completo
Characterizing fish communities associated with drifting fish aggregating devices (FADs) in the Western Indian Ocean using underwater visual surveys ArchiMer
Taquet, Marc; Sancho, G; Dagorn, L; Gaertner, J; Itano, D; Aumeeruddy, R; Wendling, B; Peignon, C.
We adapted a visual census method, mainly used in demersal and reef fish studies, to characterize fish communities associated to drifting fish aggregating devices (FADs) in the Western Indian Ocean. Drifting FAD associated fishes from both equatorial (Seychelles) and tropical waters (Reunion Island) were examined by divers. A total of 32 species (belonging to 16 families) were observed associated with drifting FADs in equatorial waters, and 24 species (14 families) were found around FADs in tropical waters. Twenty species were found in both regions. The highest number of species observed at a single FAD was 18 (12 +/- 2, mean +/- SD) in equatorial and 13 (10 +/- 3) in tropical waters, not counting circumnatant species loosely associated with the FAD. Some...
Tipo: Text Palavras-chave: Indian Ocean; Reunion Island; Seychelles; Fish aggregations; Visual census; Drifting FAD; Pelagic fishes.
Ano: 2007 URL: https://archimer.ifremer.fr/doc/00602/71370/69818.pdf
Imagem não selecionada

Imprime registro no formato completo
Characterizing fish communities associated with drifting fish aggregating devices (FADs) in the Western Indian Ocean using underwater visual surveys ArchiMer
Taquet, Marc; Sancho, G; Dagorn, L; Gaertner, J; Itano, D; Aumeeruddy, R; Wendling, B; Peignon, C.
We adapted a visual census method, mainly used in demersal and reef fish studies, to characterize fish communities associated to drifting fish aggregating devices (FADs) in the Western Indian Ocean. Drifting FAD associated fishes from both equatorial (Seychelles) and tropical waters (Reunion Island) were examined by divers. A total of 32 species (belonging to 16 families) were observed associated with drifting FADs in equatorial waters, and 24 species (14 families) were found around FADs in tropical waters. Twenty species were found in both regions. The highest number of species observed at a single FAD was 18 (12 +/- 2, mean +/- SD) in equatorial and 13 (10 +/- 3) in tropical waters, not counting circumnatant species loosely associated with the FAD. Some...
Tipo: Text Palavras-chave: Indian Ocean; Reunion Island; Seychelles; Fish aggregations; Visual census; Drifting FAD; Pelagic fishes.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3734.pdf
Imagem não selecionada

Imprime registro no formato completo
Chitons (Mollusca: Polyplacophora) from the Seychelles with description of a new species Naturalis
Kaast, P..
Notes are given on nine chiton species, collected mainly during the 'Oceanic Reefs' Expedition to the Seychelles (1992-1993), with some biogeographical observations. Ischnochiton goudi (family Ischnochitonidae) is described as a new species.
Tipo: Article / Letter to the editor Palavras-chave: Polyplacophora; Indian Ocean; Seychelles; Leptochiton; Ischnochiton; Schizochiton; Chiton; Acanthopleura; Lucilina; Acanthochitona; Cryptoplax; 42.73.
Ano: 1996 URL: http://www.repository.naturalis.nl/record/319379
Imagem não selecionada

Imprime registro no formato completo
Chitons (Mollusca: Polyplacophora) procured by the French Benthédi-expédition, 1977, and the Md 32-réunion-expédition, 1982, in the Southwestern Indian Ocean Naturalis
Kaas, P..
The late Eugène Leloup examined samples from five stations of the Benthédi-Expédition, 1977, in the North of the Mozambique Channel, containing four species of chitons, two of which proved to be new to science. The material here discussed, coming from eighteen Benthédistations, proved to contain fourteen species, among which the four previously reported by Leloup (1981), and two hitherto unknown, here described as Leptochiton (Leptochiton) gloriosus spec, nov. and Ischnochiton (Ischnochiton) crassus spec. nov. The Réunion material came from nine stations and contains five species of chitons, two of which are new, viz. Leptochiton (Leptochiton) kurnilatus spec. nov. and Ischnochiton (Stenosemus) vitreolus spec. nov.
Tipo: Article / Letter to the editor Palavras-chave: Polyplacophora; New species; New records; Indian Ocean; 42.73.
Ano: 1985 URL: http://www.repository.naturalis.nl/record/318843
Imagem não selecionada

Imprime registro no formato completo
Comparison between the opercular bones, the scales and the otoliths to investigate the growth of the brilliant pomfret (Eumegistus illustris) off the coast of Reunion Island (SW Indian Ocean) ArchiMer
Mahe, Kelig; Rabhi, Khalef; Bellamy, Elise; Elleboode, Romain; Aumond, Yoann; Huet, Jerome; Roos, David.
The brilliant pomfret (Eumegistus illustris) occurs in the western part of the Indian Ocean and the western and central Pacific Ocean. To date, the biology of E. illustris has never been documented. The aim of the present study was to investigate age and growth of E. illustris along the coasts of Reunion Island, based on calcified structures analysis. One hundred thirty five individuals were sampled in the landings of the French local artisanal fisheries from March 2014 to March 2015. The relationships between two types of body length (Total and Standard lengths, cm) and Total weight (g) were significant (P<0.05). Total length-weight relationship was described by the following parameters: a=0.012 and b=3.015 without significant effect of sexual...
Tipo: Text Palavras-chave: Eumegistus illustris; Growth; Scale; Otolith; Opercular bone; Indian Ocean; Reunion island.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00307/41861/41113.pdf
Imagem não selecionada

Imprime registro no formato completo
Cryptic variation and recent bipolar range expansion within the Stumped-Toed Gecko Gehyra mutilata across Indian and Pacific Ocean islands Naturalis
Rocha, S.; Ineich, I.; Harris, D. James.
With an impressively wide distribution, Gehyra mutilata is present on almost all Indian and Pacific Ocean islands and in large regions of Southeast Asia and Indonesia. Mitochondrial sequence data (~500 bp) from individuals covering large parts of its (mainly insular) distribution reveals deep cryptic variation and strong geographic structure, with two well differentiated lineages. Molecular data also reveals that the wide Indian and Pacific insular distribution of Gehyra is very recent and, at least across the Indian Ocean islands, most probably the result of human-aided dispersal, as no variation within this lineage was found. Further research is needed to determine geographic patterns of variation across Southeast Asia, the level of genetic variation,...
Tipo: Article / Letter to the editor Palavras-chave: 16s rRNA; Asia; Biogeography; Gehyra insulensis; Gehyra mutilata; Indian Ocean; Introductions; Island colonisations; Oceania; 42.82.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/301369
Imagem não selecionada

Imprime registro no formato completo
Cumacea (Crustacea) from the Red Sea and the Maldives (Indian Ocean) in the collection of the Zoological Museum, Hamburg, with the description of seven new species and a new genus Naturalis
Muhlenhardt-Siegel, Ute.
Eleven species of the families Bodotriidae, Nannastacidae and Diastylidae from the Red Sea and Maldive Islands (Indian Ocean) were identified and partly redescribed. Six new species were described for the genera Eocuma, Iphinoe, Nannastacus, Schizotrema, Makrokylindrus and Dimorphostylis. A new genus, Bathycampylaspis, with one new species was established.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Cumacea; New species; Red Sea; Indian Ocean.
Ano: 1996 URL: http://www.repository.naturalis.nl/record/504793
Registros recuperados: 82
Primeira ... 12345 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional