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Registros recuperados: 59
Primeira ... 123 ... Última
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Algunas características de la estructura y del comportamiento migratorio de los cardúmenes de caballa (Scomber japonicus marplatensis)en la plataforma bonaerense (Mar Argentino); período 1965-1984 OceanDocs
Cousseau, M.B.; Angelescu, V.A.; Perrotta, R.G..
Three periods were distinguished during the analyzed years: the first one (1965-1975)may be defined as "normal fishing seasons" occurring from October to March, with catches between 8,000 and 14,000 tons.
Tipo: Journal Contribution Palavras-chave: Size distribution; Reproduction; Sexual maturity; Feeding; Landing statistics; Migrations; Geographical distribution; Feeding; Geographical distribution; Reproduction; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 1987 URL: http://hdl.handle.net/1834/2008
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Algunos aspectos de la biología pesquera del langostino (Pleoticus muelleri)de la Bahía Blanca y un análisis del desembarco comercial del período 1955-1979 OceanDocs
Bertuche, D.A.; Wyngaard, J.G..
This study was carried out in order to get somme knowledge on the characteristics of the fisheries of the shrimp Pleoticus muelleri in the area of Bahia Blanca during 1980-1981. Monthly samplings in the fishing area were performed, and the landing data from 1955 to 1979 were analized.
Tipo: Journal Contribution Palavras-chave: Size distribution; Growth curves; Length-weight relationships; Landing statistics; Yield; Shrimp culture.
Ano: 1982 URL: http://hdl.handle.net/1834/2053
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An evaluation of the policy of fishery resources management by TACs in European Community waters from 1983 to 1992 ArchiMer
Biais, Gerard.
In 1983, the European Community (EC) agreed on a system for the conservation and management of fishery resources whi h is based largely on the use of annual total allowable catch (TAC). Nevertheless, the state of many European stocks of demersal species has worsened since 1983. A review of TAC enforcement shows that landings have exceeded TACs to a limited estent for these resources. The contrary is observed for the stocks of pelagic species of which the state has improved although landings have frequently been larger than TACs. This double paradox generates a feeling of limited impact of the TAC system inmplemented by the EC. To investigate the reasons, the closeness between agreed TACs and scientific recommendations has been examined. The results show...
Tipo: Text Palavras-chave: Gestion des pêches; Politique des quota; Communauté Européenne; Prévisions de captures; Évaluation des débarquements; Fishery management; Quota regulations; European Community; Catch predictions; Landing statistics.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00016/12726/9649.pdf
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Aspectos generales de la pesca del bonito (Sarda sarda)en la Argentina OceanDocs
Hansen, J.E..
Basic aspects of the fising of Bonito in Argentina such as: catch statistics, fleet and gears, season and fishing grounds, and catch per unit effort (CPUE)are analized. FAO World Catch Statistics show that none of the different populations of Sarda sarda or other species of the Genus may support a highly productive fishery Exceptions are Sarda chilensis and S.sarda from the Black Sea, which us exploited by Turkey. On the basis of available information it may be inferred that the Bonito of Argentina has more competitors and a narrower thophic spectrum than that from the Black Sea.
Tipo: Journal Contribution Palavras-chave: Landing statistics; Fishing gear; Fishing vessels; Catch/effort; Fishing gear; Fishing vessels; Http://aims.fao.org/aos/agrovoc/c_2946; Http://aims.fao.org/aos/agrovoc/c_2954.
Ano: 1987 URL: http://hdl.handle.net/1834/2009
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Calamares de importancia comercial en Argentina. Biología, distribución, pesquerías y muestreo biológico OceanDocs
Brunetti, N.E.; Ivanovic, M.L.; Sakai, M..
An overview of the available information on the commercially important squid species distributed in the Argentine Sea and adjacent zones is given. It includes the most representative characteristics to identify the species and general information on their biology, distribution and fisheries. A biological sampling designis presented, with particular emphasis on the identification of sexual maturity stages. The world market of the squid resources has considerably risen in the last decades and one of the most important fishery zones is placed in the Southwest Atlantic region (Area 41, FAO), where squid represent 25. of the total landings. Illex argentinus, sustains the second fishery in volume, with landings reaching 612.000 tonnes in 1999. Other species,...
Tipo: Book Palavras-chave: Squid fisheries; Geographical distribution; Animal morphology; Sexual maturity; Biological sampling; Commercial fishing; Landing statistics; Geographical distribution; Animal morphology; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 1999 URL: http://hdl.handle.net/1834/2336
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Capturas de cangrejo rojo Ucides occidentalis en los puertos de la provincia del Guayas y El Oro, Ecuador, durante 2009 OceanDocs
Solano, F.; Flores, L.; Ruiz, W..
Durante el 2009, se realizó el seguimiento de las capturas de cangrejo rojo (Ucides occidentalis), en las principales localidades de extracción de la provincia de El Oro y Guayas, la captura total estimada de cangrejos fue de 2 897 707 y 3 184 795 en las provincias mencionadas. Las localidades de Puerto Jelí y Puerto Baquerizo Moreno fueron las de mayor desembarque, lo que está relacionado directamente con el esfuerzo. La CPUE fue muy variada en los puertos monitoreados con valores que oscilaron entre 47 a 94 cangrejos hombre-1 día-1, obteniéndose mayores niveles en el periodo posterior a la época de veda. La distribución de tallas de amplitud del cefalotórax de los cangrejos capturados, en cada una de las localidades muestreadas, fue superior a la talla...
Tipo: Journal Contribution Palavras-chave: Catch/effort; Crab fisheries; Size-limit regulations; Landing statistics.
Ano: 2010 URL: http://hdl.handle.net/1834/4793
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Caracoles marinos de interés pesquero. Moluscos gasterópodos volútidos. OceanDocs
Lasta, M.L.; Roux, A.; Bremec, C..
The main morphologic characteristics, the ecology and fishing interest of the volutid gastropod species of the Argentine Sea are described. The species considered are Adelomelon brasiliana, Adelomelon ancilla, Adelomelon beckii, Odontocymbiola magellanica and Zidona dufresnei.
Tipo: Journal Contribution Palavras-chave: Marine molluscs; Organism morphology; Geographical distribution; Gastropod fisheries; Landing statistics; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 2000 URL: http://hdl.handle.net/1834/2534
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Característica y dinámica de la explotación de corvina rubia (Micropogonias furnieri) durante la zafra invernal, años 1995 a 1997. OceanDocs
Lasta, C.A.; Carozza, C.R.; Suquelle, P.; Bremec, C.; Errazti, E.; Perrotta, R.G.; Cotrina, C.P.; Bertelo, C.; Boccanfuso, J..
Whitemouth croaker Micropogonias furnieri fishery during three intensive fishing seasons in the outer area of the La Plata River (Argentina-Uruguay) is analyzed. Resource exploitation in the South Atlantic area shows a general retraction of the distribution range and an isolation of the La Plata River stock where most of the fishing effort concentrates. The species market evolution brought about, for Argentina and Uruguay, an important shift in its dynamics as of 1992, when the product insertion in Asiatic markets generated an important commercial attraction and a subsequent increase in the fishing effort by the argentine inshore coastal fleet. This caused a change in the fishery development in Argentina and the establishment, in winter, of a fleet...
Tipo: Journal Contribution Palavras-chave: Coastal fisheries; Fishery management; Catch/effort; Landing statistics; Marketing; Fishery management; Marketing; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_1696.
Ano: 2000 URL: http://hdl.handle.net/1834/2540
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Características biológicas y de la pesca del savorín Seriolella porosa (Pisces: Centrolophidae) del Mar Argentino OceanDocs
Garciarena, A.D.; Perrotta, R.G..
Length growth parameters were calculated and total length-weight and total length-fork length relationships, which showed no differences between sexes, were fitted for the South Atlantic bream (Seriolella porosa). Length at first maturity was also calculated. The results were as follows: L (mm)= 490.96k years-¹) = 0.154; t0 (years)= -3.915; W(g) = 4*10-6)*TL³.1989; FL(mm) = 0.8917*TL1.0006);L sub 50 (mm)= 290.61. Natural mortality was estimated at 0.274 and limit age at 11 years. Samples were taken during research surveys carried out in 1999 and 2000 in the Argentine Sea (Atlantic SW). Sagittae otoliths of 374 specimen were used for age determination. Total fish length ranged from 226 mm to 550 mm (1-14 years). Commercial landing data of trawl fleets for...
Tipo: Journal Contribution Palavras-chave: Growth rate; Natural mortality; Length-weight relationships; Catch/effort; Landing statistics; Fishery biology; Fishery resources; Growth rate; Fishery biology; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_16130; Http://aims.fao.org/aos/agrovoc/c_2937; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2002 URL: http://hdl.handle.net/1834/2416
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Caracterización de la pesquería artesanal de la localidad de Monte Hermoso OceanDocs
Pérez, M.A.; Ruarte, C.O..
Monte Hermoso (Province of Buenos Aires, Argentina) is a tourist town inhabited by a large number of artisanal fishermen. The aim of this study was to characterize, through a descriptive analysis, the operational activity of the artisanal fleet and quantify the catches landed per species. The ships, of a trucker type, are 6-9 m length equipped with a 40-90 HP outboard motor. The data analyzed derive from purchase slips furnished by a gatherer corresponding to the November 2009-October 2010 period. The target species were stripped weakfish (Cynoscion guatucupa) and patagonian smoothhound (Mustelus schmitti). The former was caught with hand line throughout the year, essentially between September-December. The latter was fished during March-April and...
Tipo: Journal Contribution Palavras-chave: Coastal fisheries; Artisanal fishing; Catch/effort; Landing statistics.
Ano: 2013 URL: http://hdl.handle.net/1834/5489
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Comportamiento de las capturas de peces pelágicos pequeños en relación con la temperatura durante el 2004 OceanDocs
Cuadra, T. de la.
Aplicando Funciones Ortogonales Empíricas (EOF) se determinó patrones de comportamiento similares entre algunas variables pesqueras del 2004 como: los desembarques de pelágicos pequeños, número de zarpes de los barcos clase I, II, III y IV; y variables oceanográficas como la temperatura superficial del mar (TSM) y anomalías térmicas de la región Nino 1+2. También se calculo los coeficientes de correlación de Pearson (r), nivel de significancia, y porcentaje de correlación explicada de cada una de las relaciones encontradas. Algunas fueron las especies que realmente mostraron patrones comunes con los parámetros oceanográficos. De todas ellas la sardina redonda fue la especie mayormente asociada a la TSM por su patrón común, nivel de significancia, y...
Tipo: Journal Contribution Palavras-chave: Catch composition; Pelagic fisheries; Temperature anomalies; El Nino phenomena; Landing statistics.
Ano: 2010 URL: http://hdl.handle.net/1834/4801
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Conocimiento biológico pesquero del recurso merluza (Merluccius hubbsi) y su pesquería en la República Argentina. OceanDocs
Bezzi, S.I.; Dato, C.V..
This paper summarizes the present knowledge on Merluccius hubbsi and its fishery in Argentina, based on the model proposed by the Technical Secretary of Comisión Técnica Mixta del Frente Marítimo, in 1990. It includes the taxonomic location of the species, its geographical distribution, stock unity, structure and population dynamics. It describes the fishing gear and fishing operations and presents the available information on selectivity and discards. The paper shows the data landings separated by fleet. Exploitation regulatory measures in force are included.
Tipo: Journal Contribution Palavras-chave: Gadoid fisheries; Population dynamics; Stock assessment; Mortality; Population structure; Fishery management; Landing statistics; Parasites; Stock assessment; Population structure; Fishery management; Mortality; Parasites; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4945; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 1995 URL: http://hdl.handle.net/1834/2558
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Crise de la production des coques (Cerastoderma edule ) en baie de Somme. 2. Impact de la dynamique biosedimentaire. ArchiMer
Ducrotoy, J; Desprez, M; Elkaim, B.
The recent collapse in the landings of cockles (Cerastoderma edule) from the Bay of Somme (France) required to investigate if a change in the environmental factors was liable for the drop of the bivalve populations. This project has led to a preliminary assessment of the situation and has been drawn up from the data collected by the Groupe d'Etude des Milieux Estuariens et Littoraux since 1978. It relies on the survey of the spatio-temporal changes of bio-facies. it is suggested that the impact of changes in sediment characteristics is important as well as competition with species as Pygospio elegans (Polychaeta). The above parameters are assessed as essential in the fluctuations of the cockle numbers but they do not explain entirely the collapse in the...
Tipo: Text Palavras-chave: Landing statistics; Clam fisheries; Stock assessment; Population dynamics; Marine mollusks.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1784.pdf
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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
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Echantillonnage des debarquements en criee pour l'etude des structures demographiques. Sources de variabilite et optimisation du plan de sondage ArchiMer
Chevalier, Robert.
The author analyzed problems encountered in selecting a sampling design for estimating the age structures of landings. He studied the effects of various factors of variability on the optimal values of the sampling rates. The method used for this analysis could be employed to define an optimal sampling strategy to assess the age structures of landings from fish markets.
Tipo: Text Palavras-chave: Statistical sampling; Fish; Population structure; Age composition; Landing statistics.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1772.pdf
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El descarte en la flota comercial argentina dirigida a la pesquería de merluza. Período 1990-1997 OceanDocs
Dato, C.V.; Villarino, M.F.; Cañete, G.R..
Discards of the commercial fleet in the Argentine Sea (SW Atlantic) directed to hake Merluccius hubbsi were estimated in weight and number of individuals. The dynamics of the ice-chilling and freezer fleets per area and quarter and processes of discarding were analyzed. The estimation method was based on the comparison of landings and surveys length composition, the latter filtered by the selectivity of the mesh used by the commercial fleet to rebuild the length distribution of catches. It is concluded that discards had an annual variation of 42,000 t-148,000 t in the 1990-1997 period, which represented between 30 and 50 in weight and 11-24 in number of actual catches. The analysis of age groups affected by discards showed that over 90 corresponded to...
Tipo: Journal Contribution Palavras-chave: Gadoid fisheries; Commercial fishing; Fishing vessels statistics; Landing statistics; Factory ships; Factory ships; Http://aims.fao.org/aos/agrovoc/c_10732.
Ano: 2003 URL: http://hdl.handle.net/1834/2424
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Estadística pesquera de peces demersales australes en el Atlántico Sudoccidental (período 1980-2002) OceanDocs
Gorini, F.L.; Di Marco, E.; Wöhler, O.C..
Fishery statistics of austral demersal fishes in the Southwest Atlantic (1980-2002 period). A synthesis of the information available about catches of austral demersal fishes and fishing efforts reported by different fleets that operated in the SW Atlantic between 34° S-58° S in the 1980-2002 period is made. Species included in the analysis were southern blue whiting (Micromesistius australis), patagonian hoki (Macruronus magellanicus), patagonian toothfish (Dissostichus eleginoides), red cod (Salilota australis), southern hake (Merluccius australis) and ling (Genypterus blacodes). Annual and monthly catches, fishing grounds, number of vessels that participated in the fisheries, main landing ports and other characteristic of interest are presented. When it...
Tipo: Journal Contribution Palavras-chave: Demersal fisheries; Landing statistics; Catch statistics; Fishing effort; Demersal fisheries; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_24027.
Ano: 2007 URL: http://hdl.handle.net/1834/2559
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Estructura por edad y sexo de la captura de merluza desembarcada. Período 1986-1998 OceanDocs
Renzi, M.A..
During the 1986-1998 period the hake (Merluccius hubbsi) fishery in the Argentine Sea (SW Atlantic) turned from moderate to intense exploitation. Age and sex structure analysis showed a change in the exploitation pattern. During the three periods defined 1986-1989, 1990-1992 and 1993-1998 a trend towards catching young individuals and a predominance of females age 3 and older was observed. An increase of total mortality was also detected. As a consequence of the establishment of a closed area in mid 1997 ice-chilling and freezer fleets changed operation areas which brought about differences in the catch structure. Freezers showed higher percentages of older ages. An average decrease of 30 in yield number of individuals per unit effort for all ages was...
Tipo: Journal Contribution Palavras-chave: Age composition; Sex ratio; Landing statistics; Gadoid fisheries; Age composition; Sex ratio; Http://aims.fao.org/aos/agrovoc/c_29093; Http://aims.fao.org/aos/agrovoc/c_7014.
Ano: 2003 URL: http://hdl.handle.net/1834/2423
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Estudio preliminar de la edad, el crecimiento, área de distribución y pesca de la corvina negra, Pogonias cromis, en el litoral de la provincia de Buenos Aires. OceanDocs
Urteaga, J.R.; Perrotta, R.G..
Argentine black drum distributes mainly in shallow waters associated to estuarine areas, particularly to Samborombon Bay where it may be detected throughout the year. Nevertheless, it can also be spotted more southwards (40°S) and at deeper waters. During summer, catches of the species in Samborombon Bay are practically negligible, probably due to movements towards shallow waters out of reach of the inshore commercial fleet. Landings increase in autumn and show peak values in winter, coinciding with the fishing season of whitemouth croaker, Micropogonias furnieri, whose geographical distribution within the bay overlaps that of black drum. As of 1995, landings of black drum showed increasing trends both in Argentina and Uruguay. These increments coincide...
Tipo: Journal Contribution Palavras-chave: Age determination; Growth; Landing statistics; Geographical distribution; Fishery management; Coastal fisheries; Growth; Age determination; Geographical distribution; Fishery management; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_1696.
Ano: 2001 URL: http://hdl.handle.net/1834/2593
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Etude diagnostic de la pêcherie de mulets sur la grande côte du Sénégal OceanDocs
Tipo: Book Palavras-chave: Mullet fisheries; Reproduction; Growth; Migrations; Ecology; Stocks; Landing statistics; Inland fisheries; Fishing gear; Exploitation; Canoe fisheries; Marketing; Artisanal fishing; Fishing licenses; Mesh regulations; Protected areas; Reef fisheries; Fishing effort.
Ano: 2009 URL: http://hdl.handle.net/1834/4578
Registros recuperados: 59
Primeira ... 123 ... Última
 

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