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| Registros recuperados: 37 | |
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| Luten, J.; Bouquet, W.; Oehlenschläger, J.; Meetschen, U.; Etienne, M.; Stroud, G.; Bykowski, P.; Batista, I.; Vyncke, W.; Stefansson, G.. |
| Eight WEFTA laboratories participated in two series of intercomparison exercises on sulfite determination in tropical shrimps. Samples of tropical shrimps were spiked with sodium metabisulfite (Na<sub>2</sub>S<sub>2</sub>O<sub>5</sub>) and hydroxymethylsulfonate (HMS) at a level of 25-90 mg SO<sub>2</sub>/kg. Most of the laboratories determined the sulfite content with (modified) methods of Monier-Williams or De Vries et al. The overall mean recovery of sulfite was rather low (47-60%), which may be attributed to an irreversible reaction of sulfite with the tropical shrimps. The repeatability of the methods within the participating laboratories was good. However, reproducibility among the laboratories was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Detection; Fishery products; Food technology; International cooperation; Quality control; Recovery; Shrimp fisheries; Sulphites. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5742 |
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| Brito, A.. |
| Trawling for penaeid shrimps in Sofala Bank (central Mozambique) has been suggested to have major effects on the size of sea turtle populations. A total of 39 commercial fishers, fishery observers and enforcers were interviewed to assess the level of sea turtle catches in fishing operations and reported that at least 1,735±1,235 sea turtles are caught each fishing season of about seven months. Green turtle (Chelonia mydas, 48.4%), the loggerhead turtle (Caretta caretta, 25.8%) were the most common species, but catches also comprised the olive ridley (Lepidochelys olivacea),the hawksbill turtle (Eretmochelys imbricata) and the leatherback (Dermochelys coriacea). Over 54.8% of the incidents occur within a few miles of the small islands forming the Primeiras... |
| Tipo: Journal Contribution |
Palavras-chave: Marine turtles; Trawling; Shrimp fisheries; Prawns and shrimps; Trawling. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5142 |
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| Fernández, M.. |
| En este estudio se presenta el análisis de la relación entre los valores de densidad de hembras maduras y de hembras impregnadas de langostino Pleoticus muelleri (Bate, 1888) del Golfo San Jorge y las variables ambientales. Los datos analizados provienen de las campañas de investigación del INIDEP OB-03/08 y OB-01/09 realizadas en noviembre-diciembre de 2008 y en enero-febrero de 2009, respectivamente; en el área comprendida entre las latitudes 43º 20´ S y 47º 00´ S y el meridiano 64º 00´ W y la costa. Se consideraron las variables biológicas: densidad de hembras maduras y de hembras impregnadas de langostino, por rango de tallas y las variables ambientales: profundidad, temperatura y salinidad de agua de fondo así como, la diferencia de temperatura y de... |
| Tipo: Theses and Dissertations |
Palavras-chave: Females; Sexual maturity; Spawning grounds; Environmental conditions; Spatial analysis; Statistical models; Shrimp fisheries. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/5159 |
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| Criales, M.M.; Corredor, L.. |
| Por medio de buceos diurnos y nocturnos con equipo SCUBA, se hicieron observaciones de campo sobre la otología de los camarones limpiadores de peces presentes en la Bahía de Santa Marta (Colombia) y en Young Islatid Channel (Isla de Saint Vincent, Antillas Menores), desde enero hasta septiembre de 1976. Se tomaron notas detalladas del comportamiento de limpieza de dos especies de camarones de actividad diurna y de tres especies nocturnas, y de la frecuencia de las limpiezas de las especies particulares de peces. Los camarones diurnos mostraron preferencia por limpiar la. boca y las branquias de sus clientes y los camarones nocturnos por limpiar la superficie corporal de los mismos. Las poses adoptadas por los peces durante el día y la noche, sugieren un... |
| Tipo: Journal Contribution |
Palavras-chave: Marine crustaceans; Feeding behaviour; Shrimp fisheries; Feeding behaviour; Http://aims.fao.org/aos/agrovoc/c_10778. |
| Ano: 1977 |
URL: http://hdl.handle.net/1834/3903 |
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| Villamar, F.. |
| En el presente estudio se realiza un bioensayo para determinar el grado de concentración media letal del dispersante de petróleo BP 1100-WD, utilizando organismos vivos en condiciones de laboratorio. Se describe el método estadístico de Bliss. En definitiva el propósito de realizar bioensayos es la de comparar la toxicidad de diferentes compuestos y conocer la sensibilidad de las diversas especies, para determinar los mecanismos de los efectos de las sustancias ensayadas (Alcazar, 1988). |
| Tipo: Journal Contribution |
Palavras-chave: Bioassays; Toxicity; Larvae; Shrimp fisheries; Bioassays; Toxicity; Larvae. |
| Ano: 1990 |
URL: http://hdl.handle.net/1834/2164 |
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| Vianna,Marcelo; Almeida,Tabajara. |
| Trawling for pink shrimp (Farfantepenaeus brasiliensis and F. paulensis) catches also large quantities of fish, mostly bony fish, which are discarded, as they have no commercial value. Their composition and abundance were studied in an area that corresponded to the southeastern coastline of Brazil. Ninety one species were registered. Incidental fishing affected mainly small individuals and occured throughout the year. The year round rate of bony fish to shrimp catches was 10,5:1,0. Three assemblages of bony fishes could be identified, influenced by the seasonal variation of the water masses, the predominant group being associated with the Coastal Water, another with the penetration of colder waters onto the platform (SACW) and a third group of a more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bycatch; Bony fishes; Demersal fish; Shrimp fisheries. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500014 |
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| Fernández, M.. |
| This is a study on surficial sediments and bottom water physico-chemical characteristics of the San Jorge Gulf (SW Atlantic, Argentina)during spring 1999 - winter 2000 (first studied period), autumn 2001- summer 2002 (second studied period)and winter 2003 (third studied period), based on samples obtained during research cruises carried out on board of the INIDEP (Instituto Nacional de Investigación y Desarrollo Pesquero)research vessels. Environmental variables such as temperature, salinity, density, oxygen and bottom water chlorophyll a content as well as granulometric fractions, total organic matter, total organic carbon, total nitrogen, total phosphorous, chlorophyll a and phaeopigments in sediment concentration and depth were analyzed. The origen and... |
| Tipo: Theses and Dissertations |
Palavras-chave: Physicochemical properties; Benthic environment; Organic matter; Shrimp fisheries; Benthos; Organic matter; Benthos; Physicochemical properties; Benthic environment. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/3134 |
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| Góngora, M.E.. |
| This work characterizes the composition and dynamics of the incidental catch in the patagonian shrimp (Pleoticus muelleri) fishery, with special emphasis on the bycatch of common hake (Merlucius hubbsi). The Observer Program coordinated by the Chubut Province (Argentina) and used to monitor the fishery is evaluated. The factors that explain the variability of hake bycatch rates are analyzed, different statistical estimators are evaluated and possible strategies for controlling bycatch are discussed. The study is centered on the double-otter-trawl freezers, responsible for 75 percent of the Argentine shrimp landings. This fleet operates in San Jorge Gulf, in waters under the jurisdiction of the provinces of Chubut and Santa Cruz, and in waters of the... |
| Tipo: Theses and Dissertations |
Palavras-chave: Shrimp fisheries; Stock assessment; Fishery management; By catch; Catch composition. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4190 |
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| Garcés Rodríguez, Yuliesky; Giménez, Enrique; Alzugaray, Romina. |
| Se representa la distribución del esfuerzo y rendimiento pesquero en la pesca de camarón durante el periodo de 2003 – 2005 para el Golfo de Ana María aplicando Sistema de Información Geográfica. Las salidas espaciales en los mapas obtenidos permitieron mostrar que la región de mayor esfuerzo pesquero fue la zona de Manuel Gómez, de empresas de Cienfuegos (EPICIEN), y las cuadrículas pertenecientes a la empresa de Santa Cruz del Sur (EPISUR). Los máximos de rendimiento pesquero reflejados espacialmente, pertenecen a la sub-zona Este de Manatí, al noreste de las cuadrículas de EPISUR y las sub-zonas de Manuel Gómez y Palomo. La representación gráfica de los resultados muestra que no existe una correspondencia entre el esfuerzo y la captura por unidad de... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp fisheries; Geographic information systems; Fishing effort. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4570 |
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| Fransozo, A.; Costa, R.C.; Castilho, A.L.; Mantelatto, F.L.. |
| The spatial and temporal distribution of the shrimp Artemesia longinaris in Fortaleza Bay, northern coast of Sao Paulo State, Brazil, in relation to abiotic factors, was studied. Shrimp samples were obtained on a monthly basis from November 1988 through October 1989 at seven pre-delimited transects on board of a fishing vessel supplied with double otter trawl nets. Depth was recorded at the midpoint of each transect; water and sediment samples were taken to measure salinity, temperature, texture and organic matter content of sediment. The shrimps obtained in the trawls were sorted, identified and 100 g subsample at each transect was separated for measurements (carapace length). A total of 3,083 individuals were obtained. Shrimps were more abundant from... |
| Tipo: Journal Contribution |
Palavras-chave: Abiotic factors; Ecological distribution; Shrimp fisheries; Fishery surveys; Abundance. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1537 |
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| Palha de Sousa, L.; Abdala, S.; Brito, A.. |
| O camarão de superfície do Banco de Sofala representa uma importante fonte de divisas para Moçambique. O estado de conhecimento sobre a pescaria encontra-se distribuído por fontes bibliográficas diversas incluindo principalmente relatórios internos. Este trabalho tem como principal objectivo compilar todos os dados e informação sobre a pescaria e o stock de camarão de superfície no Banco de Sofala desde o início da sua exploração comercial até ao presente momento. Nele se inclui uma breve descrição da pescaria, a evolução do esforço de pesca, capturas e os respectivos rendimentos da pescaria. É feita referência à história das diferentes medidas de gestão adoptadas sobre o licenciamento, a malhagem mínima, vedas e Total Admissível de Captura (TAC). É... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp fisheries; Fishing effort; Stock assessment. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/5139 |
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| Valdés, E.; Villafuerte, V.; Domínguez, H.; Pérez, A.. |
| Se analizan las variaciones en las tallas de las principales especies de peces que componen la fauna acompañante del camarón en la porción sur del Golfo de Ana María, plataforma suroriental cubana, durante el 2002-2010. Se encontró que para las 9 entidades seleccionadas, consideradas representativas dado sus elevados valores de abundancia relativa (85 % de la captura en peso) y frecuencia de aparición en los cruceros, los largos medios oscilaron entre 10.7-25.1 cm, con una talla media general de 14.4 cm, panorama indicativo de que el grueso de la ictiofauna en la captura incidental de camarón está integrada por especies de mediano a pequeño tamaño. El escenario general de largos en las mediciones individuales mostró un intervalo algo mayor, entre 8.0-31.0... |
| Tipo: Preprint |
Palavras-chave: Fauna; Shrimp fisheries; Fauna; Http://aims.fao.org/aos/agrovoc/c_2821. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3835 |
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| Suarez Alvarez, G.. |
| La distribución del camarón blanco Penaeus schmitti puede interpretarse basándonos en el análisis de factores ecológicos y parámetros fisiológicos que pueden limitar su vida. Se estudiaron los datos de la distribución del oxígeno, salinidad, temperatura y los factores rhopicos Cl/SO4; Na/Ca y Cl/Ca) en muestras de agua del fondo de la bahía de Cienfuegos, los cuales se comparan con las áreas camaroneras de mayor rendimiento. Estas relaciones iónicas también se estudiaron en la hemolinfa de los camarones y se realizaron bioensayos de supervivencia a diferentes concentraciones iónicas del medio, determinándose las concentraciones óptimas para su presencia y después de compararlos con los valores del medio se recomiendan las mejores áreas para la captura del... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp fisheries; Temperature effects; Salinity effects; Zonal distribution; Capture fisheries; Survival; Bays. |
| Ano: 1973 |
URL: http://hdl.handle.net/1834/4879 |
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| Pinto, M.A.. |
| The reduction of shrimp by-catch when fishing with shrimp trawlers can constitute a strategy to minimise discards. A research cruise was conducted in February 1995 in shallow waters off Sofala Bank, Mozambique to investigate the sorting (selection) efficiency of cod-ends (55mm and 60mm meshes) compared to the top-grid (14mm space bar) systems using covered cod-end method. The selectivity parameters were obtained for Otolithes ruber, Johnius dussumieri and Thryssa vitrirostris through the maximum likelihood estimate (MLE) method, using logit function and pooled samples through the variance component model (VCM) . The top-grid was mounted at a theoretical angle of 33°, one metre aft of the retriever strap, in a downward direction. The overall shrimp to... |
| Tipo: Report |
Palavras-chave: Shallow water; Shrimp fisheries. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/364 |
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| Miazaki, Lizandra Fernandes; Santos, Ana Paula Freitas dos; Salvati, Dalilla da Silva; Simões, Sabrina Morilhas; Costa, Rogério Caetano da. |
| Litopenaeus schmitti is one of the most commercially exploited penaeids on the southeastern and southern Atlantic coast of Brazil. Information about juvenile recruitment and growth patterns of individuals is important for management programs. The present study estimated the growth parameters, longevity, and recruitment of L. schmitti in the region of Ubatuba, São Paulo State. The growth parameters of individuals were estimated by the Bertalanffy growth model, and longevity was estimated with the inverted Bertalanffy equation. The growth parameters were, for females and males respectively: CL∞ = 53.10 mm and 43.23 mm, k = 1.82 year-1 and 2.19 years-1, t0= 1.10 and 0.69. Longevity was calculated to be 2.27 years for females and 2.10 years for males.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dendrobranchiata; Shrimp fisheries; Closed season; Bertalanffy; Growth coefficient.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/40379 |
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| Registros recuperados: 37 | |
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