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  • 1
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    La pesca costera en la Argentina (2021)
    In:  cruarte@inidep.edu.ar | http://aquaticcommons.org/id/eprint/16716 | 9602 | 2016-05-04 14:31:49 | 16716 | Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
    Details
    Publication Date: 2021-07-08
    Description: Se aborda el estudio de la pesca costera en la Argentina (océano Atlántico sudoccidental) teniendo en cuenta los factores económicos, sociales y políticos que promovieron su retraso o desarrollo. Para comprenderlo se analizan las diversas etapas históricas desde la época de la conquista (1580) hasta nuestros días. Se detalla sobre la actualidad de las artes de pesca en pequeña escala, las características de los pescadores, el manejo de las pesquerías costeras y el conflicto por los recursos y perspectivas.
    Description: Reprinted as: pp.167-177 in Ciencia del Mar. Volumen temático 1, 12/2014; Asociación Ciencia Hoy. ISBN: 978-987-45584-0-4 (Special issue dedicated to 'Marine Sciences: 1988-2014')
    Keywords: Ecology ; Environment ; Fisheries ; PSW ; Argentina ; marine environment ; Coastal fisheries ; historical account ; artisanal fishing ; fishing vessels ; fishing gear ; fishermen ; stock assessment ; marketing
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 32-43
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  • 2
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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 (2007)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
    Details
    Publication Date: 2021-05-19
    Description: 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.
    Description: Publisher permission
    Description: Published
    Description: Perciformes, Scombridae, Scomber japonicus, caballa, madurez sexual, reproducción, relaciones largo-peso, estadísticas de desembarque, distribución por tamaño, distribución geográfica, alimentación, migraciones
    Keywords: Feeding ; Geographical distribution ; Reproduction ; Sexual maturity ; Size distribution ; Reproduction ; Sexual maturity ; Feeding ; Landing statistics ; Migrations ; Geographical distribution
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 3
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    Mortandad de caballa Scomber japonicus en la plataforma bonaerense (Mar Argentino)asociada a un florecimiento del dinoflagelado tóxico Alexandrium tamarense. (2007)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
    Details
    Publication Date: 2021-05-19
    Description: Spring blooms of the toxic dinoflagellate Alexandrium tamarense in the Argentine sea produce shellfish toxicity through the parallytic shellfish poison (PSP)accumulation. The trace PSP content in the mackerel Scomber japonicus liver was previously demonstrated in the Buenos Aires province coastal region (Carreto et al, 1993a),and a certain capability to accumulate the toxins was suggested.However, it was up to spring 1993 when a great number of PSP intoxicated mackerels where detected for the first time in a wideshelf area off the Buenos Aires province. This area, known as 'El Rincón' (39°00'-40°30'S), has become a growing importance mackerel fishing ground during the last few years. A high PSP concentration was determined in those mackerels, being the maximum located in the stomach content (2800 ugSTXeq/100g). It was predominantly composed of gelatinous zooplankton and a high concentration of A. tamarence cells indicating a probable way for the toxins transference. The mackerels mortality area corresponded with the A. tamarense maximum concentration in the Buenos Aires province coastal region, where a widespread water discoloration was produced.
    Description: Publisher permission
    Description: Published
    Description: Scombridae, Scomber japonicus, Alexandrium tamarense, caballa, toxicidad, floraciones, estómago, venenos biológicos, PSP
    Keywords: Toxicity ; Stomach ; Algal blooms ; Toxicity ; Algal blooms ; Biological poisons ; Stomach
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 4
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    Stock assessment of the bluemouth (Helicolenus dactylopterus) in Azorean waters during the 1990-2002 period, applying a biomass dynamic model (2007)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
    Details
    Publication Date: 2021-05-19
    Description: Bluemouth (Helicolenus dactylopterus), a benthic fish mostly inhabiting at depths between 500 m and 600 m, represents a highly valuable economic resource for local fishermen at the Azores Islands (NE Atlantic). Nominal catches of bluemouth increased from 1990 through 1994, and declined afterwards reaching in 1999 the lowest value recorded. Standardized catch per unit effort (CPUE) was used as an index for stock relative abundance; a General Linear Model, considering several factors that may have affected the fishing efficiency of commercial vessels, was run to obtain this CPUE index. These factors were: fleet type, year, month, and boat size; the last three factors were found to be statistically significant. A discrete version of the Schaefers Biomass Dynamic Model was applied to the bluemouth stock assessment and the model parameters were estimated using the standardised CPUE series for calibration. A risk analysis using Monte Carlo simulations was carried out to estimate the probability of the stock biomass at the beginning of 2003 to be below the stock biomass at the beginning of 2002, after a given catch was extracted. Assuming a precautionary approach and keeping in mind that this resource could be depleted (0.19〈 B2002 /Bopt 〈1.55, with a 95% probability), this analysis determined that catches for the year 2003 should not exceed 250 t, which correspond to a 10% probability of generating a biomass decline at the beginning of 2003. As an additional indicator of the state of the resource, the size distribution of bluemouth landings was analyzed complementary. This analysis showed a decrease of the mean length, mainly for catches coming from regions with the highest concentrations (depths greater than 300 m). Future annual monitoring efforts to estimate and diagnose the state of the bluemouth resource are highly recommended.
    Description: This work was developed partially at Departamento de Oceanografia e Pescas Marinas (Universidade dos Acores-Portugal)
    Description: Published
    Description: bocanegra
    Keywords: Stock assessment ; Mathematical models ; Stock assessment ; Catch/effort ; Risks ; Mathematical models
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 387124 bytes
    Format: application/pdf
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  • 5
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    Comparative study on growth of chub mackerel (Scomber japonicus Houttuyn, 1782) from three different regions: NW Mediterranean, NE and SW Atlantic (2007)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
    Details
    Publication Date: 2021-05-19
    Description: The von Bertalanffy growth parameters for chub mackerel (Scomber japonicus) from the NW Mediterranean, along the Catalan coast (Spain), were estimated. These results constitute the first estimated values for chub mackerel in this area and were as follows: L∞(cm) = 39.75; K (years-1) = 0.298; t0 (years) = -1.40 (for age groups 0 to 8). These results were compared with the estimated growth parameters for the chub mackerel that inhabits other two regions: NE Atlantic (Azores) and SW Atlantic (Argentina). Significant differences in growth curves between regions were found when the growth parameters, L∞, K and t0, were simultaneously compared. When comparing the growth parameters L~! and K individually, significant differences between regions were also verified. To establish the causes in the geographical variations in the growth, some local environmental factors were analyzed, in particular, the effect of surface water on the index of physiological activity of fish (K). The observed geographical differences indicate that chub mackerel from higher latitudes reach a lower asymptotic length but have a higher K than chub mackerel from lower latitudes. No direct relationship could be established between K and the average annual water temperature in the different regions of their world distribution. On the other hand, food resource quality and availability appears to have a greater influence on growth in chub mackerel.
    Description: This work was developed partially at Departamento de Oceanografia e Pescas Marinas (Universidade dos Acores-Portugal)
    Description: Published
    Description: caballa
    Keywords: Environmental conditions ; Environmental conditions ; Surface temperature ; Comparative studies
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 244129 bytes
    Format: application/pdf
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  • 6
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    Sobre la edad y el crecimiento de la caballa (Scomber japonicus) de Mar del Plata (2007)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
    Details
    Publication Date: 2021-05-19
    Description: This is the first paper in which back-calculation is applied to growth study on Mar del Plata mackerel (Scomber japonicus). The edge of 2102 otoliths sagittae were analyzed and age reading and mesurements were done in 609 of them. It was stated that hyaline ring formation is annual and that it occurs during the winter and the spawning season.
    Description: Publisher permission
    Description: Published
    Description: Perciformes, Scombridae, Scomber japonicus, determinación de edad, curvas de crecimiento
    Keywords: Age determination ; Age determination ; Growth curves
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 7
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    Aspectos económicos de la pesquería de caballa (Scomber japonicus) y muestreo de desembarque en el puerto de Mar del Plata. (2008)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
    Details
    Publication Date: 2021-05-19
    Description: Movements pattern records of the Mar del Plata inshore fishing fleet during the 1997/98 and 1998/99 chub mackerel fishing seasons (October-January) allowed to observe that there is coincidence between the decrease of the 1983-1997 catches with respect to years previous to the 1975/76 "critical season" and a reduction of the inshore fleet fishing grounds which modifies accessibility of the fleet to the chub mackerel schools. Biostatistical and gonadal development results obtained in the Mar del Plata area (i.e., presence of adults during almost the whole fishing season which overlaps with the spawning season) do not differ significantly from those obtained during previous fishing seasons. As recommended in previous papers, chub mackerel fishing operations should not be carried out when sea surface temperatures reach 19°C. The opening of a new fishing ground ("El Rincón") for regular chub mackerel catches, mainly during August, decreases the marketing possibilities of the Mar del Plata chub mackerel inshore fishing fleet which operates later on (October-January). Therefore, it is suggested that a fishing quota be applied to said fleet.
    Description: Publisher permission
    Description: Published
    Description: Scombridae, Scomber japonicus, caballa, estadísticas de captura, muestreo biologico, zonas de pesca, estructura poblacional
    Keywords: Population structure ; Fishing grounds ; Costs ; Catch statistics ; Biological sampling ; Fishing grounds ; Population structure ; Costs
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 8
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    Un nuevo criterio de estratificación para campañas demersales costeras y resultados de la evaluación de corvina (Micropogonias furnieri) en el invierno de 1994. (2015)
    Details
    Publication Date: 2021-05-19
    Description: The pre-stratified design hitherto used to evaluate the winter biomass of the main coastal demersal species within the Aragentine - Uruguay Common Fishing Zone is reviewed. That design involved 21 strata. A new criterion to build strata is proposed, and the winter biomass of white croaker estimated 24,595 t ± 46.55 o/o by new criterian (6 strata). A further post-estratification method was performed to identify the main areas of commercial fishing, and their corresponding size structure of croaker. According to this procedure, the biomass was evaluated to be about 19,719 t ± 22.09 o/o. The new survey design reduced the total area to be covered by 24 o/o. Therefore, it allows for increasing sampling effort withing the most important areas of coastal fish distribution.
    Description: Published
    Keywords: Pesquería demersal ; Abundancia ; Biomasa ; Relevamientos pesqueros ; Diseño ; Perciformes ; Sciaenidae ; Micropogonias furnieri ; Corvina ; ASFA15::D::Demersal fisheries ; ASFA15::A::Abundance ; ASFA15::B::Biomass ; ASFA15::F::Fishery surveys ; ASFA15::D::Design
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-29
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  • 9
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    Muestreo de desembarque de caballa (Scomber japonicus) en el puerto de Mar del Plata, período noviembre 2003-diciembre 2004 y resultados de la campaña de estimación de la biomasa de diciembre de 2004 (2010)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
    Details
    Publication Date: 2021-05-19
    Description: Chub mackerel (Scomber japonicus) landings corresponding to November 2003-January 2004 and November 2004-January 2005 fishing seasons were analyzed at the Mar del Plata port (Argentina, SW Atlantic). Fourty one samples were taken to measure total length exclusively and 4 sub-samples to record individual data (total length, weight, sex, sexual stage, age according to otoliths reading). Total length ranged 20-50 cm (1 and 8 years old). The most abundant sizes, between 32-37 cm, corresponded to ages 3 and 4, respectively. Most of the fish caught were adult (95%) and mature (85%) specimens. Length-weight, length-age relations were calculated and length-growth, weight-growth parameters estimated. The catch per unit of effort, of high variability (0-2,455 kg h-1), decreased as sea surface temperature increased. To estimate the species biomass in the fishing area a research cruise was carried out between 17-20 December 2004. Measurements, obtained with acoustic methods, reached a total of 11,678 t. The highest concentrations were found at a temperature of around 17.4 ºC and salinity of 33.62 psu. During the acoustic tracking, unusual concentrations of anchovy for the season were detected.
    Description: En el puerto de Mar del Plata (Argentina, Atlántico SO) se analizaron los desembarques de caballa (Scomber japonicus) correspondientes a las temporadas de pesca noviembre 2003-enero 2004 y noviembre 2004-enero 2005. Se tomaron 41 muestras para medir la longitud total exclusivamente y 4 submuestras para registrar datos individuales (longitud total, peso, sexo, estadio gonadal, edad según lectura de otolitos). La longitud total fue de entre 20-50 cm (1 y 8 años de edad). Las clases de talla más frecuentes, de entre 32-37 cm, correspondieron a las edades 3 y 4, respectivamente. Los principales componentes de las capturas fueron individuos adultos (95%) y maduros (85%). Se calcularon las relaciones talla-peso y talla-edad y se estimaron los parámetros de crecimiento en longitud y en peso. La captura por unidad de esfuerzo, de gran variabilidad (0-2.455 kg h-1), disminuyó a medida que aumentó la temperatura de superficie del mar. Con el fin de estimar la biomasa de la especie en el área de pesca se llevó a cabo una campaña de investigación entre el 17 y el 20 de diciembre de 2004. Las mediciones, obtenidas con métodos acústicos, alcanzaron un total de 11.678 t. Las mayores concentraciones se encontraron a una temperatura de alrededor de 17,4 ºC y salinidad de 33,62 ups. Durante el recorrido acústico se detectaron importantes concentraciones de anchoíta, inusuales para la época.
    Description: Published
    Description: Scomber japonicus, caballa, estadísticas de desembarque, muestreo biológico, crecimiento, esfuerzo pesquero, biomasa, relevamientos ecoicos
    Keywords: Growth ; Biomass ; Fishing effort ; Landing statistics ; Biological sampling ; Growth ; Fishing effort ; Echo surveys ; Biomass
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 10
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    Evolución reciente de la captura por unidad de esfuerzo (1993-2004) y de las tallas medias (1993-2005) del pez palo (Percophis brasiliensis) en el litoral marítimo entre 34º S y 42º S (2010)
    Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
    Details
    Publication Date: 2021-05-19
    Description: Brazilian flathead (Percophis brasiliensis), of wide latitudinal distribution (23° S-47° S), is caught in Argentina in two coastal areas north and south of the Province of Buenos Aires delimited by the 39° S latitude. The species shows the highest abundance and catch yield percentages ( 5. ) of all coastal fish groups. The importance of the species makes it necessary to analyze mean lengths and define an annual abundance index that would allow to diagnose the state of the stock. To calculate the index the General Linear Model was adjusted. The factors used were Year, Quarter and 4 sub-areas, all statistically significant. The problem generated by the presence in the model of first order interactions that include the Year factor is discussed. It is concluded that the catch per unit of effort series did not represent changes in the resource abundance. Results suggest that caution should be taken when using the values normally considered to diagnose the state of the stock and implement management measures. Based on catch and effort values, the most important sub-areas were the mouth of the Río de la Plata river (1) and the Mar del Plata adjacent areas (3). A decreasing trend of the mean length throughout the study period was also observed.
    Description: El pez palo (Percophis brasiliensis), de amplia distribución latitudinal (23º S-47º S), en la Argentina se captura en dos áreas costeras al norte y sur de la Provincia de Buenos Aires delimitadas por los 39º S de latitud. La especie es la de mayor abundancia y rendimiento de captura (〉 5%) del conjunto del 'variado costero'. Dada su importancia, es necesario analizar las tallas medias y contar con un índice de abundancia anual que permita establecer un diagnóstico del estado del recurso. Para calcular dicho índice se ajustó el Modelo Lineal General. Los factores utilizados fueron Año, Trimestre y 4 subáreas, todos estadísticamente significativos. Se discute el problema que genera la presencia en el modelo de interacciones de primer orden que incluyen el factor Año. Se concluye que la serie de captura por unidad de esfuerzo no representó cambios en la abundancia del recurso. Los resultados sugieren considerar con mayor prudencia los valores que habitualmente se emplean para diagnosticar el estado del recurso y adoptar medidas de administración. En función de los valores de captura y esfuerzo las subáreas más importantes fueron la desembocadura del Río de la Plata y la zona adyacente a Mar del Plata. Se detectó, además, una tendencia decreciente de la talla media a lo largo del período de estudio.
    Description: Published
    Description: Percophis brasiliensis, pez palo, captura/esfuerzo, modelos matemáticos, distribución por tamaño, pesquería costera
    Keywords: Mathematical models ; Coastal fisheries ; Catch/effort ; Mathematical models ; Size distribution ; Coastal fisheries
    Repository Name: AquaDocs
    Type: Journal Contribution
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