Variación estacional y vertical de la biomasa del macrozooplancton en la bahía de Mochima, Estado Sucre - Venezuela, durante 1997 - 1998

Márquez, Brightdoom; Marín, Baumar; Díaz-Ramos, José Rafael; Tróccoli, Luis; Subero-Pino, Sonia

doi:10.4067/s0718-19572007000300004

Cited by 7 publications

(13 citation statements)

References 12 publications

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“…A high abundance of the copepods A. tonsa, T. turbinata and P. quasimodo was observed. The presence of these species coincides with the background of dominant copepods in the northeastern part of the country (Zoppi, 1961;Legaré, 1961;Marín et al, 2004;Márquez et al, 2007Márquez et al, , 2008Márquez et al, , 2011 as well as the Caribbean Sea, southeast Caribbean (Michael and Foyo, 1976) and southern Gulf of Mexico (Álvarez-Cadena et al, 2007;Ruíz-Pineda et al, 2016). A. tonsa has been reported to present a wide tolerance range for salinity and temperature (Martínez-Barragán et al, 2009), and it is also an efficient consumer of phytoplankton, and its populations can increase rapidly in the presence of abundant food (Teixeira et al, 2010).…”

Section: Discussionmentioning

confidence: 74%

“…It is also a coastal upwelling zone (Okuda, 1975;Alvera-Azcárate et al, 2009;Rueda-Roa and Muller-Karger, 2013). Studies on the specific composition, abundance and spatiotemporal distribution of zooplankton are available for various environments of the northeastern coast, such as the Mochima Bay (Márquez et al, 2007(Márquez et al, , 2008Marcano et al, 2010), the Cariaco Basin (Márquez et al, 2009) and the Gulf of Cariaco (Legaré, 1961;Zoppi 1961;Marín et al, 2004;Márquez et al, 2006b;2011). However, the information available for the Arapito-Santa Fe coast is scarce.…”

Section: Introductionmentioning

confidence: 99%

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Abundancia y distribución del zooplancton superficial de la zona costera Arapito – Santa Fé, Estado Sucre, Venezuela

Márquez

Tróccoli

Marín

et al. 2018

BIM

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The study of zooplankton in the coastal zone is fundamental to understand ecological processes. The coastal zone Arapito - Santa Fe, located in the Mochima National Park, Sucre state, Venezuela, is considered an area of great natural importance and therefore the study on zooplankton was carried upon. For this reason, the composition and community structure of zooplankton were determined in 20 stations, separated in a) coastal stations and b) away from the coast during December 2008. Samples were collected obliquely by dragging a Bongo net (500 and 300 μm, with a flow meter). The community was characterized by the presence of holoplanktonic organisms anda lower proportion of meroplankton. The main holoplankton groups were cladocerans, copepods and gelatinous plankton (appendiculate, siphonophores and hydromedusae). The most abundant species were the cladocerans Penilia avirostris and Pseudevadne tergestina and the copepods Acartia tonsa and Temora turbinata. The high percentage of holoplankton in the study area let it to be considered as a growth and feeding zone. The AMOSIM-MDS showed significant differences (p <0.05) between the two environments with R = 0.27 but with low dissimilarity (17.4%), which suggests that mixing processes promote homogeneous distribution of zooplankton in the study area.

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Section: Discussionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Abundancia y distribución del zooplancton superficial de la zona costera Arapito – Santa Fé, Estado Sucre, Venezuela

Márquez

Tróccoli

Marín

et al. 2018

BIM

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“…Al considerar que las zonas estudiadas presentan masas de aguas, patrones hidrodinámicos y productividad primaria diferente (Okuda et al 1968, 1978, Expósito 1997, Marín et al 2004, Quintero et al 2004, Márquez et al 2007, los parámetros biológicos evaluados sobre E. argenteus sugieren poco efecto de estas diferencias sobre la tasa de crecimiento y la condición nutricional en dicha especie.…”

Section: Discussionunclassified

Crecimiento somático y relación ARN/ADN en estadios juveniles de <i>Eucinostomus argenteus</i> (Pisces: Gerreidae) en dos localidades del Caribe de Venezuela

Herrera-Reveles

Lemus

Marín

2015

RBT

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Somatic growth and RNA/DNA rate of Eucinostomus argenteus (Pisces: Gerreidae) juveniles stages at two localities of the Venezuelan Caribbean. In order to evaluate the association among growth indices of marine fishes at early life stages, the somatic growth rate and physiological conditions of Eucinostomus argenteus were estimated at two Venezuelan North-East zones: Mochima Bay and Cariaco Gulf. The age and somatic growth rate were estimated based on daily growth increments in sagitta otoliths. The physiological conditions were evaluated with proteins concentrations and RNA/DNA rate, which were estimated by spectrofluorometric and fluorometric techniques, respectively, on muscle tissue. Juvenile standard length ranged from 9.80 to 39.20mm from 21 to 73 days of age. At all the study localities there were significant and positive correlations between age, otolith diameter and body size, and fitted to a linear regression model. The values of recent growth rate ranged from 0.178 to 0.418mm day -1 , backcalculated growth rate oscillated between 0.295 -0.393mm day -1 , and RNA/DNA rate ranged from 1.65 to 6.97. Differences were not found between study zones, but there were differences between localities. Despite the fact that there was no correlation between juvenile´s somatic growth and RNA/DNA rates, the reported values suggesting a E. argenteus juvenile's positive growth in their natural habitat at localities studied. Nevertheless, in some localities values that indicate poor nutritional conditions were registered, which could affect other future demographic rates as survivor and fecundity. Rev. Biol. Trop. 60 (Suppl. 1): 151-163. Epub 2012 March 01.

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“…El intervalo de peso seco registrado en este trabajo fue menor que el reportado para el Golfo de Cariaco (11.30 -38.82 mg/m 3 ) en diferentes estudios (Zoppi 1961;Legaré 1961;Bastardo 1975;Urosa 1977). Un resultado similar fue encontrado para esta bahía por Márquez et al (2007). Los bajos valores de biomasa pueden ser el resultado del alto tiempo de residencia del agua en el interior de la bahía.…”

Section: Discusionunclassified

“…Okuda et al (1968), en un estudio comparativo de las condiciones ambientales de la bahía de Mochima y Laguna Grande del Obispo, determinaron que las concentraciones de nutrientes eran más bajas en la bahía que en Laguna Grande. Los autores al igual que Márquez et al (2007), concluyeron que el fenómeno de surgencia era débil en la bahía de Mochima debido a que las montañas que rodeaban la bahía disminuían la intensidad del viento. No obstante, la densidad y biomasa zooplanctónica fue más elevada en la estación interna que en la externa; así como, en las dos estaciones la densidad y biomasa fue ligeramente mayor en la zona profunda.…”

Section: Discusionunclassified

Biomasa, Densidad Y Composicion Zooplanctonica De La Bahia De Mochima, Venezuela

et al. 2008

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10-15m. Cualitativamente, la comunidad zooplanctónica de las dos estaciones fue muy similar. Se identificaron 18 grupos zooplanctónicos, destacando por su abundancia relativa los copépodos, apendiculados, nauplios de balánidos y cladóceros en ambas estaciones. Estos últimos dominaron entre los meses de julio-septiembre (período de aguas cálidas) en las aguas internas de la bahía. La relación entre el índice de surgencia y la temperatura del agua con la variación en la densidad y composición zooplanctónica reflejó una fuerte influencia de los factores abióticos.

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Variación estacional y vertical de la biomasa del macrozooplancton en la bahía de Mochima, Estado Sucre - Venezuela, durante 1997 - 1998

Cited by 7 publications

References 12 publications

Abundancia y distribución del zooplancton superficial de la zona costera Arapito – Santa Fé, Estado Sucre, Venezuela

Abundancia y distribución del zooplancton superficial de la zona costera Arapito – Santa Fé, Estado Sucre, Venezuela

Crecimiento somático y relación ARN/ADN en estadios juveniles de <i>Eucinostomus argenteus</i> (Pisces: Gerreidae) en dos localidades del Caribe de Venezuela

Biomasa, Densidad Y Composicion Zooplanctonica De La Bahia De Mochima, Venezuela

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