Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 23
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Aspectos biológicos de Rhizoprionodon lalandii y Rhizoprionodon porosus (Carcharhinidae - Carcharhiniformes) capturados mediante la pesca artesanal en isla Fuerte, Caribe colombiano OceanDocs
Martínez Dallos, Iván; Neira Álvarez, Mayerly; Acero P., Arturo.
Se analizaron algunos aspectos biológicos de los tiburones boca zapato Rhizoprionodon lalandii y R. porosus, tales como madurez y segregación sexual, índices biológicos (gonadosomático, hepatosomático y factor de condición) y contenidos estomacales. Entre los meses de septiembre y diciembre de 2007 se realizó un seguimiento de las capturas de estos tiburones a partir de los desembarcos de la pesca artesanal realizada en Isla Fuerte. Se registraron 49 individuos de R. porosus, de los cuales 55 % se clasificó como inmaduros o juveniles, y 39 de R. lalandii, de los cuales 59 % se consideró como individuos inmaduros; se observó una proporción de sexos (machos:hembras) de 9:1 en R. porosus y 1:9 en R. lalandii, dando indicios de una segregación sexual....
Tipo: Journal Contribution Palavras-chave: Marine fish; Population characteristics; Artisanal fishing; Shark fisheries.
Ano: 2012 URL: http://hdl.handle.net/1834/4439
Imagem não selecionada

Imprime registro no formato completo
Consideraciones zoogeograficas sobre los tiburones del Pacífico colombiano OceanDocs
Díaz-M., J.M..
Se determina e interpreta el origen zoogeográfico y se reconocen los patrones de distribución en el Pacifico oriental de las 22 especies de tiburones (Pleurotremata) registradas hasta la fecha en el Pacífico colombiano, incluidas Tnaenodon obesus, Ginglymostoma cirratum y Rbiniodon typus, las cuales se registran por primera vez. Se discuten los patrones de distribución, como respuesta a factores historico-ecológicos; finalmente se hace una caracterización biogeográfica de la Isla Gorgona con base en las especies de tiburones presentes en sus aguas.
Tipo: Journal Contribution Palavras-chave: Shark fisheries; Ecology; Distribution; Ecology; Distribution; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_35773.
Ano: 1983 URL: http://hdl.handle.net/1834/3971
Imagem não selecionada

Imprime registro no formato completo
Contribución al estudio biológico de la tintorera (prionace glauca) capturada accidentalmente en la pesquería de palangre de superficie de pez espada en el mediterráneo occidental OceanDocs
de la Serna, J.M.; Valeiras, J..
(Contribution to the biological study of blue shark (Prionace glauca) incidental catch by the Spanish surface longline fisheries for swordfish in the western Mediterranean). Blue shark (Prionace glauca) bycatches in the Spanish surface longline fisheries in the Mediterranean targeting swordfish (Xiphias gladius) from 1999 to 2001 represented 2% of the total catch. Information from onboard observers during 861 fishing sets in 26 longliners indicated that the highest catches were made in area 4-35000 (Alboran Sea) which represents 75.6% of the total observed catch of blue shark. The observed CPUE are from 5.5 to 34.1 kg/1000 hooks. Mean size at capture (LJFL) was 141.6 cm (SD=35.88). The proportion of females from the total was 0.5.
Tipo: Report Palavras-chave: Swordfish fishery; Mediterranean; Blue shark; By-catch; Prionace glauca; Shark fisheries.
Ano: 2003 URL: http://hdl.handle.net/1834/790
Imagem não selecionada

Imprime registro no formato completo
Contribución al estudio biológico de la tintorera (prionace glauca) capturada accidentalmente en la pesquería de palangre de superficie de pez espada en el mediterráneo occidental OceanDocs
de la Serna, J.M.; Valeiras, J..
(Contribution to the biological study of blue shark (Prionace glauca) incidental catch by the Spanish surface longline fisheries for swordfish in the western Mediterranean). Blue shark (Prionace glauca) bycatches in the Spanish surface longline fisheries in the Mediterranean targeting swordfish (Xiphias gladius) from 1999 to 2001 represented 2% of the total catch. Information from onboard observers during 861 fishing sets in 26 longliners indicated that the highest catches were made in area 4-35000 (Alboran Sea) which represents 75.6% of the total observed catch of blue shark. The observed CPUE are from 5.5 to 34.1 kg/1000 hooks. Mean size at capture (LJFL) was 141.6 cm (SD=35.88). The proportion of females from the total was 0.5.
Tipo: Report Palavras-chave: Swordfish fishery; Blue shark; By-catch; Mediterranean; Prionace glauca; Shark fisheries; Sharks.
Ano: 2003 URL: http://hdl.handle.net/1834/790
Imagem não selecionada

Imprime registro no formato completo
Desembarques de la pesca artesanal de peces pelágicos grandes y tiburones en la costa ecuatoriana durante el 2008 OceanDocs
Peralta, M..
Se presentan los resultados del seguimiento de los desembarques de peces pelágicos grandes y tiburones procedentes de la pesca artesanal durante el 2008. Se determinó un total desembarcado de 32 150.37 t, que correspondió 67.4 % y 20.2% a peces pelágicos grandes y tiburones respectivamente. Entre los pelágicos grandes la familia Coryphaenidae fue la más representativa, en tanto que para el grupo de tiburones fue Alopiidae, y en menor presencia Carcharhinidae y Sphyrnidae. En los puertos de Manta, Anconcito y Santa Rosa se registraron los mayores desembarques de pelágicos grandes mayormente de la familia Coryphaenidae en tanto que para los tiburones los aportes más significativos están reportados para el puerto de Manta. Las capturas de dorado estuvieron...
Tipo: Journal Contribution Palavras-chave: Pelagic fisheries; Landing statistics; Artisanal fishing; Shark fisheries.
Ano: 2009 URL: http://hdl.handle.net/1834/4781
Imagem não selecionada

Imprime registro no formato completo
Ecología trófica del gatuzo, Mustellus schmitti (Springer 1939), en el Mar Argentino OceanDocs
Belleggia, M..
The narrownose smoothhound shark Mustelus schmitti is a benthic shark distributed from Florianópolis (27°S, Brazil) to Deseado River Estuary (47º45´S, Argentina) and occurs from shallow waters to 120m. This Thesis describes the feeding ecology of narrownose smoothhound shark M. schmitti in northern Argentinean Continental Shelf and is structured in four chapters. Chapter 1 contains an introduction and includes purpose, theory and concepts. In Chapter 2, the food habits of M. schmitti were studied based on analysis of stomach contents from specimens collected during the years 2008-2011. Of a total of 959 stomachs sampled during this period, 944 (98,43%) contained food. Prey items were identified to the lowest possible taxonomic level, counted and weighted....
Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Trophic levels; Stomach content; Predator prey interactions; Ontogeny; Shark fisheries; Mustellus schmitti; Polychaeta; Marine environment.
Ano: 2012 URL: http://hdl.handle.net/1834/4775
Imagem não selecionada

Imprime registro no formato completo
Ecología y conservación de los grandes tiburones costeros de Bahía Anegada, provincia de Buenos Aires, Argentina. OceanDocs
Lucifora, L.O..
Reproduction, age, growth, feeding habits and population dynamics of four large temperate sharks (sand tiger shark Carcharias taurus, school shark Galeorhinus galeus, copper shark Carcharhinus brachyurus, and broadnose sevengill shark Notorynchus cepedianus) were studied in Anegada Bay (between 39°50' and 40°40'S), Argentina. Data were gathered from 1089 individuals examined during a three-year study period. Age and growth were studied through examination of vertebral centra only in the first three species. Population dynamics was modeled through stage matrix population models. Most sand tiger sharks examined were adults and evidence indicates that they use the study area as a mating ground. Sand tiger males mature at 193 and females at 223 cm total length...
Tipo: Theses and Dissertations Palavras-chave: Reproductive behaviour; Feeding behaviour; Age; Growth; Exploitation; Shark fisheries; Reproductive behaviour; Feeding behaviour; Growth; Age; Http://aims.fao.org/aos/agrovoc/c_37902; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_186.
Ano: 2003 URL: http://hdl.handle.net/1834/1441
Imagem não selecionada

Imprime registro no formato completo
Ecologie et biologie de l'émissole lisse Mustelus mustelus (Linné, 1758) sur les côtes de Mauritanie OceanDocs
Khallahi, B..
RESUME: Les eaux océaniques mauritaniennes sont au carrefour d'eaux froides et salées provenant du Nord, et d'autres chaudes et moins salées du Sud. L'interaction de ces eaux est à l'origine d'un régime hydrologique à 4 saisons: une saison froide de janvier à mai, une saison de transition froide-chaude de juin à juillet, une saison chaude d'août à octobre et enfin une saison de transition chaude – froide de novembre à décembre. La présente étude met en relation ces variations hydrologiques saisonnières, la distribution et la biologie de Mustelus mustelus. La distribution spatiale et temporelle de M. mustelus sur le plateau continental mauritanien a été suivie en analysant les données récoltées au cours de 20 campagnes de prospections scientifiques, 13...
Tipo: Theses and Dissertations Palavras-chave: Mauritania; Croissance; Biologie; Biology; Physical environment; Mauritanie; Ecology; Fecondity; Growth; Emissole lisse; Alimentation; Smouthound shark; Mustelus mustelus; Fécondité; Reproduction; Milieu physique; Écologie; Distribution; Shark fisheries.
Ano: 2004 URL: http://hdl.handle.net/1834/677
Imagem não selecionada

Imprime registro no formato completo
Estudio de la interrelaciones tróficas de dos elasmobranquios del Mar Argentino, en relación con las variaciones espacio-temporales y ambientales. Squalus acanthias (Squalidae) y Raja flavirostris (=Dipturus chilensis) (Rajidae). OceanDocs
Garcia de la Rosa, S.B..
As a general rule, sharks and rays play an important role in the energy exchanges among higher trophic levels of the marine food chain and some of them, with an important impact as piscivorous predators. Squalus acanthias (Squalidae) and Raja flavirostris (=Dipturus chilensis )(Rajidae), are two elasmobranchs with high apparition frequencies in the SW Atlantic, in the coastal and demersal fishing trawls, co-existing and predating on the principal stocks of bony fish there located, especially the Argentine hake (Merluccius hubbsi). Both species could be transformed into alternative fishing resources, even though they are not currently commercially developed as such. The knowledge on their biology, given in great detail, will provide information for a...
Tipo: Theses and Dissertations Palavras-chave: Geographical distribution; Abundance; Size distribution; Feeding behaviour; Diets; Interspecific relationships; Predation; Food preferences; Shark fisheries; Geographical distribution; Feeding behaviour; Predation; Food preferences; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_6162; Http://aims.fao.org/aos/agrovoc/c_3024.
Ano: 1998 URL: http://hdl.handle.net/1834/1487
Imagem não selecionada

Imprime registro no formato completo
Kitefin shark Dalatia licha (Dalatiidae)fishery in the northeastern Atlantic and some recommendations for elasmobranchs explotation OceanDocs
Perrotta, R.G..
In the Azores Islands (NE Atlantic), between 1986 and 1998, Dalatias licha was caught to obtain liver oil. A drastic abundance decline, probably attributed to a high level of exploitation, was observed. In Argentina elasmobranchs have undergone intensive fishing and, at present, catches are compromised. The history of the fishery in Azores should be taken as example and warning when implementing elasmobranchs fisheries management in Argentina.
Tipo: Journal Contribution Palavras-chave: Abundance; Catch/effort; Fishery management; Shark fisheries; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 2004 URL: http://hdl.handle.net/1834/1501
Imagem não selecionada

Imprime registro no formato completo
La alimentación de tiburones martillo jovenes (Sphyrna lewini) capturados en el Golfo de Nicoya, Costa Rica (Nota) OceanDocs
López-Garro, A.; Zanella-Cesarotto, Il.; Arauz-Vargas, R..
Sharks present strong intraspecific changes in feeding habits, which may vary according to size, geographic location and season. This study analyzed the stomach contents of 52 juvenile scalloped hammerhead sharks (25 females and 27 males) caught by artisanal vessels in the Gulf of Nicoya. Regarding the organisms found in the stomachs, 41.07 % were teleost fish, 30.36 % mollusks and 28.57 % crustaceans. Mollusks presented the highest Relative Importance Index (RII) (43.05 %), followed by teleost fish (41.37 %) and crustaceans (15.58 %). Squids (Loliginidae) were the items with the greatest RII (32.57 %). By means of the Pianka index, a relatively low overlap between sexes was identified, suggesting a spatial sexual segregation and, in consequence, an...
Tipo: Journal Contribution Palavras-chave: Stomach content; Shark fisheries.
Ano: 2010 URL: http://hdl.handle.net/1834/4027
Imagem não selecionada

Imprime registro no formato completo
La pesca y utilización del tiburón en el Ecuador OceanDocs
Bostock, T.; Herdson, D..
Los tiburones son muy abundantes en las aguas ecuatorianas. Son capturados tanto por embarcaciones artesanales como por barcos industriales junto con peces pelágicos grandes (dorado, picudo, atún) y como pesca acompañante en los arrastreros. No existe una pesquería dedicada específicamente a la captura del tiburón. Sin embargo, se capturan grandes cantidades como parte de la pesca acompañante de varias otras pesquerías. Los tiburones más comunes en las capturas son los de la familia Carcharhinidae, los carcharhinidos. Se tiene que considerar que no todos los tiburones capturados se comercializan. A más de la captura de la flota artesanal, una porción muy apreciable del total es realizada por barcos industriales, los atuneros y los palangreros, éstos...
Tipo: Journal Contribution Palavras-chave: Shark fisheries; Shark utilization.
Ano: 1985 URL: http://hdl.handle.net/1834/3163
Imagem não selecionada

Imprime registro no formato completo
Management of shark fisheries in Seychelles OceanDocs
Nageon de Lestang, J..
Shark species, both oceanic and coastal, are very common to Seychelle waters. In the past, however, the demand for shark and shark products has always been very erratic. The ever-increasing international concern for the species and potential conflicts between fishermen and conservation groups has highlighted the issue. In the Seychelles, the shark are caught by gillnets in inshore waters and by hook-and-line and purse seine offshore. Until very recently there were no regulations controlling the shark fishery, but, partly in response to initiatives by a local conservation group, fishing for sharks with nets has been banned since 1 August 1998. A review is provided of the present situation of the fishery whilst underscoring the difficulties of formulating a...
Tipo: Report Palavras-chave: Seychelles; SHARK FISHERIES; Fishery management; Fishery regulations; Legislation; Shark fisheries; Fishery management; Legislation; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4253.
Ano: 1998 URL: http://hdl.handle.net/1834/1311
Imagem não selecionada

Imprime registro no formato completo
Management of shark fisheries in Seychelles OceanDocs
Nageon de Lestang, J..
Shark species, both oceanic and coastal, are very common to Seychelle waters. In the past, however, the demand for shark and shark products has always been very erratic. The ever-increasing international concern for the species and potential conflicts between fishermen and conservation groups has highlighted the issue. In the Seychelles, the shark are caught by gillnets in inshore waters and by hook-and-line and purse seine offshore. Until very recently there were no regulations controlling the shark fishery, but, partly in response to initiatives by a local conservation group, fishing for sharks with nets has been banned since 1 August 1998. A review is provided of the present situation of the fishery whilst underscoring the difficulties of formulating a...
Tipo: Report Palavras-chave: Seychelles; SHARK FISHERIES; Fishery management; Fishery regulations; Legislation; Shark fisheries; Fishery management; Legislation; Sharks.
Ano: 1998 URL: http://hdl.handle.net/1834/1311
Imagem não selecionada

Imprime registro no formato completo
No es lo mismo ¡peligro, hay tiburones! o ¡tiburones en peligro! OceanDocs
Baisre, J. A..
La pesca intensiva de los tiburones y en especial de sus aletas (se confecciona un plato para ocasiones y personas especiales) ponen en peligro su existencia. En la zona protegida las Doce Leguas y Nuevitas (Cuba), los turistas pueden alimentarlos, así como también, en otros 200 sitios más de buceo en el mundo. En este artículo se aborda el miedo a los tiburones, la película “Tiburón”, por qué comienza la caza de los tiburones, etc.
Tipo: Journal Contribution Palavras-chave: Shark fisheries.
Ano: 2007 URL: http://hdl.handle.net/1834/5047
Imagem não selecionada

Imprime registro no formato completo
Nuevo registro para el Caribe Sur Colombiano del tiburon Quelvacho Centrophorus granulosus (Schneider) (Pisces: Centrophoridae) OceanDocs
Hernández-Hamón, H.; Núñez-R., S..
A new record from the Southern Colombian Caribbean of the gulper shark Centrophorus granulosus (Schneider) (Pisces: Centrophoridae). There aren't records of Centrophoridae for the Southern Caribbean. Some of its species are generally known from bathypelagic habitats and are occasionally collected by deep exploratory field studies For the Colombian Caribbean, this is the First record of a male specimen (850 mm TL) of Centrophorus granulosus (Schneider, 1801) incidentally captured using a longline at 200 m depth on the continentalshelf off Bahía Taganga, Santa Marta.
Tipo: Journal Contribution Palavras-chave: Shark fisheries.
Ano: 1998 URL: http://hdl.handle.net/1834/3318
Imagem não selecionada

Imprime registro no formato completo
Plan d'Action National Requin: rapport de mise en oeuvre OceanDocs
Tipo: Report Palavras-chave: Shark fisheries; Resource management; Fishery management; Landing statistics; Breeding sites; Fishery engineering; Fishery management; Resource management; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2007 URL: http://hdl.handle.net/1834/1713
Imagem não selecionada

Imprime registro no formato completo
Primer hallazgo del tiburón cañabota Hexanchus griseus (Bonaterre, 1788) (Pisces: chondrichthyes, Hexanchiidae) en aguas del Pacífico tropical americano OceanDocs
Acevedo-M., G.; Rubio-R., E.A.; Zapata-P., L.A..
Los tiburones de seis y siete aberturas branquiales pertenecientes al orden Hexanchiformes, son muy raros en capturas comerciales de América Tropical: sus especies son típicos habitantes de los fríos mares boreales, y que raramente ingresan en aguas cálidas. En el presente trabajo se presenta por primera vez la captura de Hexanchus griseus , en aguas tropicales del Océano Pacífico.
Tipo: Journal Contribution Palavras-chave: New records; Shark fisheries.
Ano: 1998 URL: http://hdl.handle.net/1834/3282
Imagem não selecionada

Imprime registro no formato completo
Primer registro de anormalidades en la columna vertebral de un tiburón capturado en el Caribe colombiano OceanDocs
Alvarez-León, R.; Rey-Carrasco, I..
Se registra por primera vez en el Caribe la deformación en S de la columna vertebral de un tiburón (Carcharhinidae: Carcha rhinus), capturado en la Guajira colombiana. El presente hallazgo constituye aparentemente el tercer registro de ésta anormalidad para el género en el Atlántico Occidental.
Tipo: Journal Contribution Palavras-chave: Deformation; Shark fisheries.
Ano: 1984 URL: http://hdl.handle.net/1834/4035
Imagem não selecionada

Imprime registro no formato completo
Rapport national sur l'état de l'environnement marin et côtier OceanDocs
Le domaine maritime sénégalais s’étend de 18°00 N, -20°00 W, -16°30 E, 12°15 S ; la presqu’île du Cap-Vert située entre 14°30 N et 15°00 N le divise en deux zones aux caractéristiques topographiques distinctes. Au nord, le plateau continental est peu étendu vers le large et orienté Nord-Nord/Est. Au sud de la presqu’île, le plateau s’élargit et le talus continental est orienté nord-sud. L’embouchure du fleuve Sénégal au Sénégal au Nord de la presqu’île du Cap-Vert et celles de la Gambie et de la Casamance au Sud constituent également un trait marquant de cette région. Les travaux réalisés au Sénégal en océanographie ont montré : - l’existence de deux saisons marines aux caractéristiques très différentes qui se succèdent : une saison chaude de juillet à...
Tipo: Report Palavras-chave: Deltas; Ecosystems; Mangroves; Coastal erosion; Marine environment; Marine mammals; Shark fisheries; Turtle fisheries; Aquatic birds; Fishermen; Migrations; Flora; Fisheries; Marine pollution; Fishing nets; Climatic changes; Deltas; Ecosystems; Marine environment; Aquatic birds; Fishermen; Fisheries; Mangroves; Coastal erosion; Flora; Fishing nets; Http://aims.fao.org/aos/agrovoc/c_2170; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_16190; Http://aims.fao.org/aos/agrovoc/c_9949; Http://aims.fao.org/aos/agrovoc/c_2983; Http://aims.fao.org/aos/agrovoc/c_2951.
Ano: 1922 URL: http://hdl.handle.net/1834/2884
Registros recuperados: 23
Primeira ... 12 ... 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