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  • 1
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    Diagnóstico de la producción de ostión (Bivalvia: Ostreidae) en Cuba, ventajas de Crassostrea virginica (Gmelin, 1791) para la ostricultura. (2020)
    Details
    Publication Date: 2021-05-19
    Description: El ostión de mangle Crassostrea rhizophorae (Guilding, 1828), debido a su abundancia natural y rápido crecimiento, es el molusco bivalvo más explotado comercialmente en Cuba, por pesca y cultivo. De mayor tamaño promedio, C. virginica aparece en la captura comercial desde 2007 pero no se aprovecha en la ostricultura; el cultivo de esta especie pudiera garantizar un incremento productivo y mayores ingresos. Según indicadores productivos, se realizó un diagnóstico de la producción nacional de ostión con énfasis en siete provincias de mayor producción (95%). La productividad se comparó (ANOVA) entre las especies de ostiones en Cuba. El objetivo es determinar las áreas más productivas de ostión y definir las ventajas de C. virginica para el cultivo. La producción media anual de ostión (1112 t) durante 2000- 2017, es 50% inferior respecto a 1960-1999 (2226 t). El potencial de las áreas ostrícolas naturales no se utiliza de manera sostenible, y las provincias con costas a la plataforma suroriental mostraron mayor productividad. En estado silvestre, C. virginica mostró mayor peso y rendimiento en carne que C. rhizophorae. Los resultados pueden utilizarse para lograr una actividad ostrícola sustentable.
    Description: The mangrove oyster Crassostrea rhizophorae (Guilding, 1828), due to its natural abundance and rapid growth, is the most commercially exploited bivalve mollusc in Cuba, for fishing and farming. Of higher average size, C. virginica appears in the commercial catch since 2007 but not used in oyster farming, cultivation of this species could ensure increased production and higher incomes. According to productive indicators, a diagnosis of national oyster production was carried out with emphasis on the seven most productive provinces (95%). Productivity was compared (ANOVA) according to species of oysters in Cuba. The objective is to determine the most productive areas of oyster and define the advantages of C. virginica for cultivation. The average annual production of oyster (1112 t) during 2000-2017 is 50% lower than in 1960-1999 (2226 t). The potential of oyster areas not used sustainably, and the provinces bordering the southeastern platform showed higher productivity. In the wild, C. virginica showed greater weight and yield in meat than C. rhizophorae. The results can be used to achieve sustainable oyster farming.
    Description: Published
    Keywords: Ostras ; Crassostrea spp. ; Rendimiento ; Ostricultura ; Oysters ; Yield ; Oyster culture
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.105-118
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  • 2
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    Variación espacio-temporal de la turbidez y calidad en cuerpos de agua marina de uso pesquero, región norcentral de Cuba, 2008-2010 (2018)
    Details
    Publication Date: 2021-05-19
    Description: A partir de cinco cruceros de investigación realizados en el periodo 2008 – 2010, en dos bahías semicerradas (Buena Vista y San Juan de los Remedios), de la región norcentral de Cuba, se analizó la variabilidad espacio-temporal de la turbidez del agua y su relación con la temperatura, salinidad, concentración y saturación de oxígeno disuelto, pH, transparencia, color, sólidos suspendidos y totales, demanda química de oxigeno (DQO) y la intensidad del viento in situ. Se evaluó la calidad de las aguas por el índice del estado trófico, y de la comparación y relación transparencia vs. turbidez se obtuvieron intervalos de turbidez (FTU) que se utilizaron como indicador de la calidad de los cuerpos de aguas estudiados. La turbidez presentó relación estadística (positiva) significativa (α〈0,05) con el color del agua, los sólidos totales y la DQO, e inversa con la transparencia, el pH, y la concentración y saturación de oxígeno disuelto. En la distribución horizontal, los máximos de turbidez se localizaron en aguas cercanas a la costa coincidiendo con zonas contaminadas por materia orgánica, que según el índice del estado trófico clasificaron como mesotróficas o eutróficas. Según los intervalos de turbidez determinados en función de la transparencia, se identificó como calidad BUENA los valores menores que 5 FTU y MALA a partir de 8 FTU. Con intensidades de vientos superiores a 14 km h-1 se incrementó la turbidez a concentraciones mayores que 8 FTU, lo que limitó la visibilidad de los fondos en la región.
    Description: It was analyzed the space-time variations of turbidity and their relation with temperature, salinity, dissolved oxygen concentration and saturation, pH, water transparency and color, suspended and total solids, chemical oxygen demand (COD), and the in situ intensity of the wind in two semi-enclosed bays (Buena Vista and San Juan de los Remedios) located in the north-central region of Cuba. Measurements were taken during five cruises in different seasons of the year between 2008 and 2010. Water quality was determined by the trophic state index. Intervals of turbidity (FTU) were obtained from the relation transparency vs. turbidity, which were used as indicators of water quality in the studied water bodies. Turbidity showed a significant (α〈0,05) and direct statistic relation with water color, total solids and COD; and an inverse relation with transparency, pH and dissolved oxygen concentration. Areas of higher turbidity values coincided with near-shore zones contaminated by organic matter that classified as mesotrophic and eutrophic, according to the trophic state index. Consistent with the intervals of turbidity determined in relation to transparency, used for evaluating water quality in marine zones of fishery use in the north-central region, it was identified as GOOD the quality values lower than 5 FTU, and as BAD quality values higher than 8 FTU. With wind intensities stronger than 14 km h-1 blowing from the first quadrant, turbidity increases up to values higher than 8 FTU, limiting the visibility in the bottoms of this region.
    Description: Published
    Keywords: turbidez, ; calidad, ; bahías semicerradas, ; región norcentral,
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 24-35
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  • 3
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    Parámetros meteorológicos, represamiento fluvial y huracanes. Variaciones en la hidrología del golfo de Batabanó, Cuba. (2020)
    Details
    Publication Date: 2021-05-19
    Description: The Gulf of Batabanó (GB), is the region of the Cuban marine platform of greater extension and fishing importance. Habitat effects of marine species have been reported as a consequence of natural and anthropic factors. The objective was to determine significant spatio-temporal variations in the hydrology of GB in different periods and environmental situations. For this, the variability of rainfall and air temperature was analyzed in 1975-1995 and 1996-2015 periods of low and high cyclonic activity, the thermohaline characteristics of the GB before (1959-1970) and after (2006-2016) the river damming, and the effect of two hurricanes almost simultaneous in 2008 (“Gustav” and “Ike”). Significant differences in the interannual variability of meteorological parameters between the north and south of the GB corresponded to local characteristics, and changes occurred in the distribution of the months of maximum rainfall. The perennial impact of the damming, coupled with temporary precipitation deficits in spring, summer and winter, caused thermohaline increases in 2006-2016, with an increase of 0.7 °C in water temperature and 2.3 in average salinity of the GB, with respect to 1959-1970. Salinity showed an increase in the distribution of hypersaline values, and an average 〉 36 in months of high rainfall, with a general average of 35.4 in 1959 -1970 and 37.7 in 2006-2016, this suggests that damming has been a major factor in the increase in salinity. The thermohaline impact in the GB of two hurricanes in 2008 was restored in the short term, with greater inertia in turbidity.
    Description: Published
    Keywords: Southwestern platform ; Space-time variation ; Hydrometeorology ; Plataforma suroccidental ; Variación espacio-temporal ; Hidrometeorología
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 308-318
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  • 4
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    Simulación de la deriva de larvas de langosta en aguas oceánicas adyacentes a la plataforma suroccidental de Cuba: Aplicación del modelo biofísico LADIM. (2020)
    Details
    Publication Date: 2021-05-19
    Description: The pelagic larval stage of the common Caribbean lobster Panulirus argus, takes place during 6-8 months in ocean waters away of shelf. Predicting larval recruitment and identify the areas of arrival and settlement, and assess the quality of their breeding habitats, have been permanent necessity in studies of population dynamics of this fishery resource. The purpose of this work was to determine the potential percentage of self-recruitment larvae to the southwest Cuba shelf, and to identify the main areas of arrival or settlement of puerulus. The simulation, using particles released in a major period of spawning and larval recruitment, using the numerical model LADIM developed in the Institute of Marine Research in Norway. The percentage of selfrecruited larvae was 33.8%. The zones of arrival and greater density of particles, according to modeling, coincided with the areas that by in situ studies have shown greater settlement of puerulus and have been classified as natural nurseries of post-larvae and juveniles. This suggests that hydrodynamics ocean-shelf connectivity in the southwest region of Cuba, it is decisive to the success of recruitment and distribution of lobster larvae, in the final stage.
    Description: La etapa larval pelágica de la langosta común del Caribe Panulirus argus, transcurre durante 6-8 meses en aguas oceánicas alejadas de la plataforma. Predecir el reclutamiento larval e identificar las zonas de arribo y asentamiento, así como evaluar la calidad de sus hábitats naturales de cría, ha sido una necesidad permanente en los estudios y evaluaciones del recurso langosta. Este estudio tuvo como objetivo determinar el porcentaje potencial de auto reclutamiento de larvas de langosta a la plataforma suroccidental de Cuba, a partir de su modelación. La simulación, con el modelo numérico LADIM del Instituto de Investigaciones Marinas de Noruega, se inició con partículas liberadas en marzo, mes de máximos de reproducción y desove, completando un ciclo larval de unos 7 meses. Las partículas mostraron movimientos de dispersión, con periodos de retención, en función de los diferentes mecanismos hidrodinámicos, culminando con un 33,8% de larvas auto-reclutadas a la plataforma suroccidental de Cuba. Las zonas de arribo y de mayor densidad de partículas, según modelación, coincidieron con las zonas que por estudios in situ han mostrado mayor asentamiento de puerulus y han sido clasificadas como criaderos naturales de postlarvas y juveniles; esto sugiere que la conectividad hidrodinámica océano-plataforma, influye en el éxito del reclutamiento y distribución de las larvas de langosta, en estadio final, a la plataforma suroccidental de Cuba.
    Description: Published
    Keywords: Biophysical model ; Lobster larval drift ; Cuba ; Modelo biofísico ; Deriva larval de langosta
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 289-297
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  • 5
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    Status of the American oyster Crassostrea virginica (Mollusca: Ostreidae) resource in Cauto river, Cuba. (2018)
    Details
    Publication Date: 2021-05-19
    Description: The phenotypic identification of Crassostrea virginica, Gmelin (1791), as a natural resource in the Cauto River, Cuba, occurs in 2016. The species is part of the commercial catch in the southeastern region of Cuba since 2007. Fishing is free, without reproductive prohibition regulations and the same legal minimum catch size (40 mm) of mangrove oyster Crassostrea rhizophorae, Guilding (1828) is applied. The production of both species is not differentiated in the fisheries statistics of Cuba. This makes it difficult to evaluate and manage the entire oyster resource, so it was a first stock assessment and fishery production of C. virginica in the Cauto River. The annual total catch data 2010-2015 were obtained from fishing companies and population sampling and exploration was carried out, determining the total area of banks, the abundance of oysters in number and weight, and the mean population size. The population mean size decreased from 68.30 ± 18.22 mm in 2011 to 42.6 ± 11.70 mm in 2014, and abundance was significantly reduced in 2013 and 2014 compared to 2011 and 2012, with signs of exhaustion in the population, which needed a catching total banning. As a result of this administrative strategy, a population indicated a slight increase in abundance and size but did not reach levels of abundance for a maximum sustainable catch. Regulatory measures for the management of the C. virginica fishery in Cuba are proposed.
    Description: La identificación fenotípica de Crassostrea virginica, Gmelin (1791), como recurso natural en el río Cauto, Cuba, ocurre en 2016. La especie forma parte de la captura comercial en la región sudoriental de Cuba desde 2007. La pesca es libre, sin regulaciones por veda reproductiva y se aplica el mismo tamaño legal mínimo de captura (40 mm) establecido en Cuba para la ostra de mangle Crassostrea rhizophorae, aplicado por Guilding (1828). La producción de ambas especies no se diferencia en las estadísticas pesqueras de Cuba. Esto hace difícil evaluar y manejar todo el recurso ostrícola, por lo que se hizo una primera evaluación de la población y de la pesquería de C. virginica en el río Cauto. Los datos anuales de captura 2010-2015 se obtuvieron de las empresas pesqueras y se realizó muestreo y exploración de la población, determinando el área total del banco, la abundancia de ostras en número y peso, y el tamaño medio de la población. La talla media poblacional disminuyó de 68.30 ± 18.22 mm en 2011 a 42.6 ± 11.70 mm en 2014, y la abundancia se redujo significativamente en 2013 y 2014 en comparación con 2011 y 2012, con indicios de agotamiento en la población, lo que hizo necesaria una veda total de captura. Como resultado de esta estrategia administrativa, un muestreo poblacional en diciembre de 2016 indicó un ligero aumento en la abundancia y talla, pero sin alcanzar niveles de abundancia para una captura máxima sostenible. Se proponen medidas regulatorias para el manejo de la pesquería de C. virginica en Cuba.
    Description: Published
    Keywords: Fishery ; Bivalves ; Oysters ; Caribbean islands ; Pesquería ; Bivalvos ; Ostras ; Caribe insular
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: Article ID 05.2018.06 [17pp.]
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  • 6
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    Identificación del ostión americano Crassostrea virginica (Mollusca:Bivalvia: Ostreidae) como recurso natural en las Antillas Mayores: Cuba. (2020)
    Details
    Publication Date: 2021-05-19
    Description: El ostión de mangle Crassostrea rhizophorae (Guilding, 1828) ha sido considerado la única especie de ostión nativo que se comercializa enCuba. Sin embargo, se han encontrando agregaciones de «ostión de fondo» en las cuencas de los ríos Cuyaguateje y Cauto de Cuba, con morfologíay hábitat diferentes a C. rhizophorae, cuya extracción contribuye a la producción ostrícola nacional. El presente estudio tuvo como objetivo lacaracterización fenotípica de ambos ostiones en 3 zonas de estas cuencas, mostrando evidencias de dicotomías fenotípicas y de hábitat entre ambosrecursos pesqueros, mostrando a Crassostrea virginica (Gmelin, 1791) como la especie denominada «ostión de fondo». Esta mostró una talla(promedio 61.1 ± 23.46 mm, máxima 145 mm) superior al 65% de la del ostión de mangle C. rhizophorae (promedio 37.2 ± 11.95 mm, máxima87 mm), así como un mayor rendimiento (4.5-10.2% de carne con respecto al peso total) que las poblaciones del ostión de mangle (3.9 a 7.1%). Esteestudio registra por primera vez la especie C. virginica como recurso natural en explotación comercial en Cuba y su mayor rendimiento evidenciaun potencial como especie cultivable en las Antillas Mayores.© 2016 Universidad Nacional Autónoma de México, Instituto de Biología. Este es un artículo Open Access bajo la licencia CC BY-NC-ND(http://creativecommons.org/licenses/by-nc-nd/4.0/).
    Description: The mangrove oyster Crassostrea rhizophorae (Guilding, 1828) is the only native species of oyster marketed in Cuba. However, oyster beds(known locally as “bottom oyster”) were found in the mouth of the Cuyaguateje and Cauto Rivers, with a different morphology and occupyinga different habitat with respect to C. rhizophorae. These also contribute to oyster production in Cuba. We addressed studies for phenotypiccharacterization of both oysters found in 3 areas surrounding these 2 rivers, finding evidence of phenotypic and habitat dichotomies of thebottom oyster from the mangrove oyster. We conclude that Crassostrea virginica (Gmelin, 1791) is the species called “bottom-oyster”. Its averagesize is 61.1 ± 23.46 mm and reaches a maximum length of 145 mm), which is 65% larger than the mangrove oyster C. rhizophorae (average37.2 ± 11.95 mm, maximum 87 mm) and has higher meat yield (4.5-10.2% meat of total weight) than populations of the mangrove oyster (3.9 to7.1%). This study is the first report of C. virginica available as a natural resource for commercial exploitation in Cuba. Its excellent performancerecommends it for cultivation in the Greater Antilles.
    Description: Published
    Keywords: Dicotomía fenotípica ; Recurso marino ; Ostreidae ; Cuba ; Phenotypic dichotomy ; Marine resource
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 1342-1347
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  • 7
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    Oyster production and meat yield in Crassostrea spp. (bivalvia: Ostreidae) in Pinar del Rio, Cuba. (2018)
    Details
    Publication Date: 2021-05-19
    Description: The main shing enterprise located in the province of Pinar del Río, Cuba, markets oyster meat packed in brine bags of 460 g. Oysters come from natural bank sheries and farms. During the period 2009 - 2013, captures showed an increasing tendency from 50 t to more than 80 t. However, the recorded oyster meat yields values from 3.3 - 3.9% are considered lower than the minimal acceptable value (4.9%). The aims of this study were to assess oyster exploitation, meat yield and loss in the nal packed product. Monthly and annual variations of meat yield were analyzed regarding capture and oyster size; meanwhile, the meat loss was analyzed by treatments with di erent proportions of oyster / brine. Signi cant di erence (p 〈 0.05) of meat yield (%) was observed by oyster species and size with a better performance in farmed oysters. Traditional packing for commercialization (meat / brine, 391 g / 69 g, respectively, and total weight of 460 g) in uenced meat weight loss by leakage of interstitial uid; this loss was further con rmed by the treatments with di erent proportions of meat / brine where the 1:1 proportion showed the least meat weight loss. In addition, the non-compliance of management measures regarding commercial size, as well as lack of oyster cleanliness before shell removing process, impacted meat yield analyses during 2009 - 2013.
    Description: La empresa pesquera de Pinar del Río, Cuba comercializa el ostión desconchado, carne en salmuera, envasada en bolsas de 460 g. Este recurso proviene de bancos naturales y granjas de cultivo. Aunque la captura de 2009 a 2013 incrementó de 50 a más de 80 t, los rendimientos en carne de ostión mostraron valores de 3.3 a 3.9%, los cuales son inferiores al mínimo aceptable (4.9%). El objetivo de estudio fue evaluar el aprovechamiento ostrícola, rendimiento en carne y merma en el producto envasado. Se analizó la variación mensual y anual del rendimiento y su relación con la captura y la talla; la merma se analizó mediante tratamientos con diferentes proporciones osti ón/salmuera. Se encontraron diferencias signi cativas (p 〈 0.05) en el rendimiento (%) en carne según el tipo de ostión y su relación proporcional con la talla, con mayor rendimiento en el ostión de cultivo. La proporción tradicional de comercialización (carne / salmuera, 391 g / 69 g, respectivamente; peso total de 460 g) incidió en la pérdida de peso en carne por drenaje natural del líquido tisular, corroborado en las pruebas con diferentes proporciones de ostión/salmuera, mostrando menor merma la proporción 1:1. Adicionalmente, el incumplimiento en medidas de manejo, la talla comercial y la falta de limpieza del ostión antes de entregarlo al proceso de desconche pudieron incidir negativamente en el rendimiento en carne durante 2009 - 2013.
    Description: Published
    Keywords: Cuba ; Oyster production ; Meat yield ; Pinar del Rio ; Producción ostrícola ; Rendimiento en carne
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.501-510
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  • 8
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    Abundancia y talla de esponjas comerciales (Spongiidae) en el Golfo de Batabanó, Cuba: Actualización y recomendaciones de manejo. (2020)
    Details
    Publication Date: 2021-05-19
    Description: Las fluctuaciones de las capturas de esponja en Cuba evidencian disminuciones que obligan a mantener un enfoque precautorio y velar por el estricto cumplimiento de las medidas regulatorias. Fueron objetivos de este trabajo determinar las principales variaciones de la abundancia, talla y calidad de esponjas comerciales en el golfo de Batabanó duran- te el período 2015-2019 y proponer medidas de manejo que favorezcan la sostenibilidad del recurso. La densidad se estimó en transectos de 2x100 m (200 m2). El potencial pescable, expresado en toneladas métricas, fue calculado a partir de la densidad promedio de individuos. La cuota de captura se calculó en base al 15 % del potencial pescable. Las especies más representadas fueron Spongia obscura y S. barbara. Las densidades encontradas (entre 0.01 y 0.03 ind/m2) fueron bajas, pero se corresponden con las reportadas a finales de la pasada década, lo que corrobora la estabilización de las capturas (cuota anual promedio de 18.7 TM) y evidencia la efectividad de las actuales medidas de manejo. Sin embargo, la densidad y talla muestran tendencia a la disminución entre 2015 y 2019. Esto, unido a la disminución de la abundancia de Hippospongia lachne, a la presencia de esponjas muertas (total o par- cialmente) y a mala calidad de varios ejemplares, sugiere el deterioro del stock pesquero. Basado además en las afectaciones del hábitat re- portadas para esta región, se recomienda disminuir la cuota anual al 10 % del potencial pescable, no extraer ejemplares menores a 15 cm de diámetro mayor e implementar nuevamente el cultivo.
    Description: Commercial sponge catches in Cuba show decreases that require maintaining a precautionary approach and ensuring strict compliance with regulatory measures. This study aims to determine variations in abundance, size and quality of commercial sponges in the Gulf of Batabanó, during the 2015-2019 period, and to propose fishing management measures that favor this resource sustainability. Sponges den- sity was estimated in 2x100 m (200 m2) tran- sects. The fishing potential, expressed in metric tons, was calculated from the average density of individuals. The catch quota was calcula- ted based on 15 % of the fishing potential. The most represented species were Spongia obscura and S. barbara. The densities found (between 0.01 and 0.03 ind/m2) were low, but correspond to those reported at the end of the last decade, which corroborates the stabilization of catches (average annual quota of 18.7 metric tons) and demonstrates the effectiveness of the current fishing management. However, the density and size show a tendency to decrease between 2015 and 2019. This, together with the decrease in the abundance of Hippospongia lachne, the pre- sence of totally or partially dead sponges and the poor quality of some specimens, suggests the deterioration of the fishing stock. Based on the habitat affectations reported for this region, it is recommended to reduce the annual quota to 10 % of the fishing potential, not to extract specimens smaller than 15 cm in diameter and to implement sponge aquaculture again
    Description: Published
    Keywords: Spongia ; Manejo pesquero ; Pesquerías ; Sostenible ; Batabanó ; Spongia ; Fishing management ; Fisheries ; Sustainable ; Batabano
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.72-85
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  • 9
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    Prospección hidroacústica en zonas de desove de peces de la plataforma nororiental de Cuba. Caso: biajaiba (Lutjanus synagris, Linnaeus, 1758). (2018)
    Details
    Publication Date: 2021-05-19
    Description: Se realizaron muestreos hidroacústicos en zonas y periodo de concentración de desove de peces de la familia Lutjanidae. Las zonas de estudio se localizan al norte del canal de Boca de Sagua la Grande y de cayo Lanzanillo, región central de la plataforma nororiental de Cuba. Se utilizó una ecosonda multipropósito SIMRAD EK 15 con frecuencia de 200 kHz, y se realizó una prospección hidroacústica de la ictiofauna, a partir de mediciones de la fuerza del blanco (Target strength = TS) y con el objetivo de localizar y evaluar áreas de agregación de la biajaiba (Lutjanus synagris, Linnaeus, 1758). En áreas poco profundas (〈15m) de ambas zonas prospectadas, se estimó una densidad de peces 〈 1 ind./m2, la que se incrementó a medida que aumentó la profundidad. En la zona oceánica adyacente al talud, a una profundidad entre 20 y 50 m, al norte de Boca de Sagua, se detectó una agregación de desove de biajaiba. Según los valores de la TS y su relación con el largo horquilla (LH), se calculó una talla media de 19.7±3.4 cm LH, estimándose una densidad media de 5 ind./m2 y densidad en peso de 0.6 kg/m2.
    Description: Hydroacoustic samplings were conducted in known spawning concentration areas and period for species of Lutjanidae family. The study areas are located north of Boca de Sagua la Grande channel and Cayo Lanzanillo, in the central region of Cuban northeastern insular shelf. A multipurpose SIMRAD EK 15 echo sounder was used, with frequency of 200 kHz, and hydroacoustic sampling of fish fauna was carried out in order to identify and assess aggregation areas of Lane snapper (Lutjanus synagris, Linnaeus, 1758), based on target strength (TS) measurements. In shallow areas (〈15 m) at both evaluated sites, a fish density 〈1ind. /m2 was estimated, increasing with depth. In the ocean area adjacent to the slope north of Boca de Sagua, between 20 and 50 m deep, a Lane snapper spawning aggregation was detected. According to TS values and its relation to fork length, an average size of 19.7 ± 3.4 cm FL was calculated, estimating a mean density of 5 ind./m2 and a density in weight of 0.6 kg/m2
    Description: Published
    Keywords: Hidroacústica ; agregación ; biajaiba ; densidad
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 46-57
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  • 10
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    Sponge Fishery and Aquaculture in Cuba: Impacts and Challenges. (2019)
    IntechOpen
    Details
    Publication Date: 2021-05-19
    Description: Sponges are very primitive multicellular organisms that belong to phylum Porifera; they are sessile and live attached to different types of hard and soft substrates. Sponges have different shapes and colours and very varied sizes, from a few millimetres to more than 2 m in height. They inhabit mainly in the marine environment at different depths. This chapter describes the general biological characteristics of sponges, their properties, uses and applications. Moreover, this study discusses a commercial fishery analysis of this natural resource in Cuba during the period 1970–2017, as well as the different characteristics of their natural populations subjected to commercial extraction. The applied techniques for aquaculture, harvest and postharvest processing are reviewed, including those procedures adapted from other countries or locally developed by Cuban fishermen. Finally, this study examines the challenges and perspectives of this productive activity with a long-term eco-sustainable approach.
    Description: Published
    Keywords: Sponges ; Ecology ; Aquaculture ; Production
    Repository Name: AquaDocs
    Type: Book Section , Refereed
    Format: 15pp.
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