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| Registros recuperados: 31 | |
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| Chalen, X.; Vicuña, H.. |
| Nineteen lightday rectangular transects were made 16 in the area of the Gulf of Guayaquil (Ecuador), and 3 in an oceanic area at the west of the Gulf of Guayaquil, this was the second part of research cruise, oriented to the evaluation of the small pelagic fish stocks, it was made between september 14th and 27th, 1995. The SIMRAD EK-500 acoustic system was used, installed on board of the National Research Institute (INP) R/V Tohallí. At the same time, people from the INP's Fisheries Observer Program were on four private enterprises vessels, while they were fishing in the same Gulf's area. They also made the biological sample of the commercial catch, for future relation with the results from the acoustic evaluation. The V/R Tohallí principal catch was jack... |
| Tipo: Journal Contribution |
Palavras-chave: Geographical distribution; Abundance; Demersal fisheries; Fishery resources; Continental shelves; Echo surveys; Geographical distribution; Demersal fisheries; Fishery resources; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_32413. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/2962 |
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| Revelo, W.. |
| The demersal phase (from june 24th to 09th, 1995) of cruise T95/06/02 DO, covered an area of 23833,6 km2 between 01° 04'1”N - 79° 59'6”O and 03° 22'7”S - 80° 48'0”O, of the Ecuadorian Continental Plataform, the deph range from 13 to 111 meters. 161 species were recorded, divided into 106 oseum fish species, five sharks, nine ray, 37 crustaceans, three molluscan and one holothurid (sea cucumber). Total biomass was estimated as 91685, 5 t, with 68,72% of this biomass distributed between 02° 15'1”S - 03°22'7”S, opposite to Guayaquil Gulf. The most abundant species were: Gallineta (Prionotus stephanophrys) (37283,7 t), Barriga juma (Larimus spp) (16146,2 t), Perela (Paralabrax spp) (14053,4 t), Palometa (Peprilus medius)(9865,3 t) and Cabezudo (Caulolatilus... |
| Tipo: Journal Contribution |
Palavras-chave: Demersal fisheries; Biomass; Geographical distribution; Population density; Demersal fisheries; Biomass; Geographical distribution; Population density; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6112. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/3029 |
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| Tascheri, R.; Pequeño, G. |
| El orange roughy (Hoplostesthus atlanticus, Collet 1889), es una especie de aguas profundas de un alto valor comercial, que presenta una amplia distribucion geografica en los oceanos atlantico, Indico y Pacifico. Los estudios de edad de Orange roughy muestra que es una especie de crecimiento lento que alcanzaria sobre los 100 años de edad. La actividad pesquera en torno a este recurso, de reciente desarrollo en Chile, ha permitido la recolección de muestras de la fauna ictica asociada a esta pesqueríia que reviste especial especial interés cientifico, en áreas como la zoologia y biogeografia , estudios que unidos a datos geologicos pueden contribuir a responder importantes interrogantes como la distribucion de orange roughy en areas geograficas tan... |
| Tipo: Book |
Palavras-chave: Fauna; Demersal fisheries; Fish physiology; Fauna; Demersal fisheries; Http://aims.fao.org/aos/agrovoc/c_2821; Http://aims.fao.org/aos/agrovoc/c_2173. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1401 |
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| Herdson, D.; Rodríguez, W.; Martínez, J.. |
| The stock estimates obtained during the demersal fish resources survey in 1980-1985 were used to estimate the potential yields of demersal stocks of the Ecuadorian Continental Shelf. The difficulties of predicting yields for multispecies fisheries are discussed and modified version of the Gulland model was adopted. The potential realizable yields for multispecies fisheries are discussed and a modified version of the Gulland model was adopted. The potential realizable yield was calculated to be between 15,000 t and 20,000 t per year, of which 2,000 t is good quality fish, 5,000 t per year of small and medium fish and 8,000 t of gurnards. The majority of these resources are at present being fished at around their optimum levels and any further developments... |
| Tipo: Journal Contribution |
Palavras-chave: Demersal fisheries; Continental shelves; Yield predictions; Exploitation; Demersal fisheries; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_32413. |
| Ano: 1985 |
URL: http://hdl.handle.net/1834/3227 |
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| Wöhler, O.C.; Hansen, J.E.; Giussi, A.R.; Cordo, H.D.. |
| Period 1985-2001. A stock assessment of Patagonian hoki of the Southwest Atlantic was carried out by using data from the years 1985-2001. A cohort analysis, fitted with some survey abundance indices was used in an adaptive conceptual framework. Simulation trials were performed to project the evolution of the fishery, to evaluate the risk of over-fish the stock under different exploitation levels, and to estimate Biologically Acceptable Catches (BAC). Both total biomass and spawning stock biomass showed increasing trends resulting from four strong year classes (1993, 1995, 1996 and 1998). Total biomass at the beginning of 2001 was estimated to be 2.5 million tons, and spawning stock biomass at the spawning time (August) was estimated to be around 1.28... |
| Tipo: Journal Contribution |
Palavras-chave: Stock assessment; Fishery management; Biomass; Risks; Demersal fisheries; Stock assessment; Fishery management; Biomass; Demersal fisheries; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_2173. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/2525 |
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| Roa-Varón, A.; Saavedra-Díaz, L.M.; Acero-P., A.; Mejía-M., L.S.; Navas-S., G.R.. |
| Between October and August 1999 five cruises were made on board of R/V Ancón, across the Colombian Caribbean slope, from Punta Estrella (Guajira), near the Venezuelan border, to Cabo Tiburón (Chocó), near the Panamá border. Eighty trawls were made between 200 and 500 m depth with a semi-balloon net. Twelve new records of fishes for the Colombian Caribbean in the orders Beryciformes, Zeiformes, Perciformes and Tetraodontiformes were collected. Plectranthias garrupellus (Serranidae), Benthodesmus tenuis and B. simonyi (Trichiuridae) are new records for the Caribbean; Diplospinnus multistriatus family (Gempylidae) is a new record for the southern Caribbean. |
| Tipo: Journal Contribution |
Palavras-chave: Demersal fisheries; New records; Surface slope; Demersal fisheries; Http://aims.fao.org/aos/agrovoc/c_2173. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/3065 |
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| Maeda, H.; Ercoli, R.; Fukada, K.; Garcia, J.C.. |
| Bathymetric changes in groundfish catch composition are analyzed, on the basis of routine reports of 106 bottom longline strings. The project was conducted from 12 December 1986 to 29 November 1987, covering areas from coastal waters to the outer shelf of the continental shelf off Argentina from 36° to 55°S. As a preliminary step to the analysis, the validity of each factor as probable explanatory variable in each area, was analyzed with consideration as to their range and variation. Obtained results show that the kingclip (Genypterus blacodes), a main objective of the project, could become one of the most profitable target species of the high-sea bottom longline, in areas along the outer edge of the continental shelf, at bottom depths slightly below 200... |
| Tipo: Journal Contribution |
Palavras-chave: Longlining; Experimental fishing; Demersal fisheries; Demersal fisheries; Http://aims.fao.org/aos/agrovoc/c_2173. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/1930 |
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| Registros recuperados: 31 | |
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