Vertical structure of larval fish assemblages during diel cycles in summer and winter in the southern part of Bahía de La Paz, México

Aceves-Medina, Gerardo; Saldierna-Martínez, Ricardo J.; Hinojosa‐Medina, Alejandro; Jiménez-Rosenberg, Sylvia P. A.; Hernández-Rivas, Martín E.; Morales-Ávila, Raúl

doi:10.1016/j.ecss.2007.08.016

Cited by 20 publications

(14 citation statements)

References 13 publications

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“…Diel changes in estuarine ichthyoplankton have been documented by several authors (e.g. Brodeur and Rugen, 1994;Islam et al, 2007;Auth et al, 2007;Aceves-Medina et al, 2008) and the differences between night and day periods were often attributed to factors as gear avoidance or diel vertical migration (Rodríguez et al, 2006;Auth et al, 2007). Gear avoidance is a common concern when sampling larval fishes, particularly the older developmental stages, as it is usually lower during night resulting in the misleading idea of higher larvae densities during nocturnal sampling.…”

Section: Discussionmentioning

confidence: 89%

“…Despite their planktonic nature, fish larvae can control their vertical position in the water column. This vertical migration seems to have a main role that allows the larvae to reach or stay in certain favourable areas and control passive drift (Aceves-Medina et al, 2008;Tamaki et al, 2010). Moreover, knowledge of the vertical distribution of larvae is critical to understand the structure and ecological interactions of ichthyoplankton communities (Gray, 1998).…”

Section: Introductionmentioning

confidence: 99%

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Vertical patterns of ichthyoplankton at the interface between a temperate estuary and adjacent coastal waters: Seasonal relation to diel and tidal cycles

Primo

Azeiteiro

Marques

et al. 2012

Journal of Marine Systems

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Vertical distribution and migration pattern of ichthyoplankton assemblage in the Mondego estuary were investigated in relation to diel and tidal cycle. Summer and winter communities were sampled, at surface and bottom, over a diel cycle during spring and neap tides at a fixed station at the mouth of the estuary. Summer presented higher larvae density mainly of Pomatoschistus spp., Gobius niger and Parablennius pilicornis. Main species in winter assemblages were Pomatoschistus spp. and Sardina pilchardus. There were no differences between depth stratums across diel or tide cycle. Nevertheless, main species larval densities showed significant periodic variation associated with tide (M2) and diel (K1) cycles presenting generally, higher density at night and around low tide. Conversely, vertical patterns observed could not be related with diel or tidal cycle. Tough, main species presented some extent of vertical migration. Vertical patterns observed appear to be related to seasonal stratification and river flow, increasing amplitude during periods of less stratification and lower water currents. Present study provides a better understanding of ichthyoplankton vertical movement patterns and of small scale dynamics at the interface of two coastal European systems.

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Vertical patterns of ichthyoplankton at the interface between a temperate estuary and adjacent coastal waters: Seasonal relation to diel and tidal cycles

Primo

Azeiteiro

Marques

et al. 2012

Journal of Marine Systems

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“…However, it remained at shore stations throughout the year independently of the tide. This larval retention mechanism may be explained by the migration of the larvae to greater depths during low tide (Aceves-Medina et al ., 2008) or concentration at the surface during flood tide (Barletta & Barletta-Bergan, 2009).…”

Section: Discussionmentioning

confidence: 99%

Structure and dynamics of Gobiidae larvae (Teleostei, Perciformes) in a tropical estuary: seasonal relationships with tidal cycles

Gomes

Bonecker

2014

J. Mar. Biol. Ass.

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This study aims to describe the spatial and temporal distribution patterns of Gobiidae larvae at a tropical estuarine system in south-east Brazil (Macaé). The samples were collected in six stations, through oblique hauls using a bongo net (330 mm mesh size), coupled to a flowmeter, during the night in the ebb and flood tides in March, July and October 2006 and in February 2007. In the Macaé River estuary was collected a total of 1,234 Gobiidae larvae, representing nine taxa. The highest densities occurred in the river mouth during the flood tide in the rainy season. The most abundant groups were: Gobiosoma parri, Gobionellus oceanicus and Ctenogobius boleosoma. Gobiosoma parri was also dominant at the Macaé estuary, which also presented higher densities in the coastal stations during the rainy season (March), both the flood as the ebb tide. Gobionellus oceanicus and Ctenogobius boleosoma were characteristic of the dry season in the mouth and river stations during the flood tide. The abiotic factors chlorophyll-a and temperature were considered biologically significant for Gobiidae larvae distribution. The spatial and seasonal variations together with the tide influence the distribution of the fish larvae Gobiidae family in the Macaé River estuary and its coastal zone.

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“…Several studies have shown that fish larvae are able to actively disperse with floods, mainly owing to vertical movements with the tidal cycle (Grioche et al 2000, Aceves-Medina et al 2008). The present study considered only subsurface samples and the vertical migration pattern could not be confirmed.…”

Section: Discussionmentioning

confidence: 99%

Seasonal, lunar and tidal control of ichthyoplankton dynamics at the interface between a temperate estuary and adjacent coastal waters (western Portugal)

Primo¹,

Azeiteiro²,

Marques³

et al. 2012

Sci. Mar.

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SUMMARY: Influence of season, lunar-tide cycle and tide on ichthyoplankton at the interface between Mondego estuary and the adjacent coast and on up-estuary transport was evaluated. Seasonal samples were collected at a fixed station at the mouth of the estuary during diel cycles, at neap and spring tides. Additionally, four sampling stations along the estuary were assessed. Pomatoschistus spp. was the main estuarine taxon, while Sardina pilchardus and Parablennius pilicornis were the most important marine species. Ichthyoplankton entrance and transport along the estuary presented a seasonal pattern with higher densities during summer. Lunar-tide cycle also represented an important influence, structuring communities that reach the estuary and their subsequent distribution. Solea senegalensis and Sardina pilchardus seemed to take advantage of spring tides to enter the estuary. S. pilchardus appear to be using tides to move upstream of the estuary. Ichthyoplankton entrance in the estuary seemed related to species spawning period, while its distribution within the estuary depends on in situ spawning and on the capacity of species to counteract currents and river flow. The present study provides a better understanding of ichthyoplankton dynamics at the interface of two coastal systems, reinforcing knowledge of the lunar-tide cycle influence on ichthyoplankton communities.Keywords: ichthyoplankton, larval ingress, tidal exchange, seasonality, lunar cycle, larval transport. RESUMEN: Control estacional, lunar y mareal de la dinámica del ictioplancton en la interfaz entre un estuario templado y las aguas costeras adyacentes (oeste de Portugal). -Se estudió la influencia de la estación, ciclo lunar y mareas entre el estuario del Mondego y las aguas costeras adyacentes sobre el ictioplancton y el transporte de las larvas hasta el estuario. En cada estación del año, el ictioplancton fue muestreado en una estación fija situada en la desembocadura del estuario, realizandose ciclos diarios en mareas muertas y vivas. Además, fueron muestreadas otras cuatro estaciones en el estuario. Pomatoschistus spp. fue la principal especie estuarina mientras que Sardina pilchardus y Parablennius pilicornis fueron las especies marinas más importantes. La entrada de ictioplancton y transporte a lo largo del estuario presentaron un patrón estacional con mayores abundancias en verano. El ciclo lunar tuvo una importante influencia en la estructuración de las comunidades que llegan al estuario y su posterior distribución. Solea senegalensis y Sardina pilchardus parecen tomar ventaja de las mareas vivas para entrar en el estuario. S. pilchardus parece aprovechar las mareas para moverse hacia la parte alta del estuario. La entrada del ictioplancton en el estuario parece estar relacionada con el periodo de desove mientras que su distribución en el estuario depende del desove in situ así como de la capacidad de las especies de contrarrestar las corrientes y el caudal del río. Este estudio proporciona un mejor entendimiento de la dinámica del ictiopla...

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Vertical structure of larval fish assemblages during diel cycles in summer and winter in the southern part of Bahía de La Paz, México

Cited by 20 publications

References 13 publications

Vertical patterns of ichthyoplankton at the interface between a temperate estuary and adjacent coastal waters: Seasonal relation to diel and tidal cycles

Vertical patterns of ichthyoplankton at the interface between a temperate estuary and adjacent coastal waters: Seasonal relation to diel and tidal cycles

Structure and dynamics of Gobiidae larvae (Teleostei, Perciformes) in a tropical estuary: seasonal relationships with tidal cycles

Seasonal, lunar and tidal control of ichthyoplankton dynamics at the interface between a temperate estuary and adjacent coastal waters (western Portugal)

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