Ichthyoplankton Assemblage Structure in Mississippi Sound as Revealed by Canonical Correspondence Analysis

Rakocinski, Chet F.; Lyczkowski‐Shultz, Joanne; Richardson, Sally L.

doi:10.1006/ecss.1996.0067

Cited by 96 publications

(81 citation statements)

References 21 publications

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“…The length of the vector of a given variable on the CCA plots indicates the importance of that variable, and any variable having a correlation coefficient = 0.4/-0.4 is suggested to be biologically important (Rakocinski et al, 1996;Akin et al, 2005). Species plotted closer to the vector with a longer distance from the origin have stronger relationships with the vectors.…”

Section: Discussionmentioning

confidence: 99%

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Ren

Song

et al. 2015

Hydrobiologia

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Landscape pattern plays an important role in structuring of larval fish assemblages in large river basins. The lower reach of the Yangtze River includes the river section from the mouth of Poyang Lake, the largest freshwater lake in China, downward to the estuary. We hypothesized that river-lake connectivity at the upstream portion and tidal intrusion at the downstream portion are significant drivers of larval fish assemblages. Larval fish were collected monthly from April 2012 through September 2013 in three locations at Anqing (AQ), Nanjing (NJ), and Jingjiang (JJ). Fifty-six taxa of larval fish were identified with 52 of them determined of species. Larval fish were highly abundant from April through August; the number of species and the abundance were much higher at AQ than at NJ and JJ; the bloom of larval fish at JJ tended to be later than at NJ and AQ. We suggest that the larger number of species and higher abundance of larval fish at AQ reflect the effects of the connectivity of Poyang Lake with the river upstream of AQ, and the delayed bloom of larval fish and the occurrence of estuarine species at JJ reflect the influences of tidal intrusion from the estuary.

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Section: Discussionmentioning

confidence: 99%

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Ren

Song

et al. 2015

Hydrobiologia

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“…These temporal abundance patterns arise due to the interactive effects of abiotic and biotic factors. Temperature is an important environmental variable influencing ichthyoplankton assemblages in coastal waters and is related to seasonality patterns of larval fish abundance (Kingsford, 1988;Tzeng and Wang, 1993;Rakocinski et al, 1996;Harris et al, 1999). Environmental factors, such as salinity and temperature, have been shown to play an important role in the occurrence, density and growth of the larval stages of fishes (Rakocinski et al, 1996;Esteves et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Larval fish distribution in shallow coastal waters off North Western Iberia (NE Atlantic)

Azeiteiro

Bacelar–Nicolau

Resende

et al. 2006

Estuarine, Coastal and Shelf Science

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Monthly sampling for ichthyoplankton was conducted at three stations very near to the coast (near to shore shallow stations before the surf zone in direction to the shoreline) of Atlantic northwestern Portugal within contrasting localities: rocky shore, in front of a sandy beach receiving an estuary and a fishing port with heavy anthropogenic impact. Sampling was conducted from August 2002 to October 2003, always at full moon, at low tide and high tide in daylight hours, at the water column using a 48 cm diameter plankton net with 335 mm mesh. Analysis of the physico-chemical parameters pointed out the spatial (horizontal) homogeneity of the sampling area. Fish larvae from 41 taxa belonging to 17 families were identified; Blenniidae, Labridae, Ammodytidae, Clupeidae, Gobiidae, Soleidae and Gobiesocidae were the most representative during the study period. Parablennius gattorugine, Ammodytes tobianus, Symphodus melops, Sardina pilchardus, Lipophrys pholis and Coryphoblennius galerita were the most representative species (percentage contribution to total abundance). Peak abundance of fish eggs occurred during May, June and August 2003 and fish larvae occurred during May and July 2003 and August 2002; there was a pronounced winter/early spring (March 2003) peak in larval abundance dominated by the small sandeel A. tobianus. This study identifies the occurrence of a conspicuous assemblage of larval fishes at very nearshore shallow environments of a variety of species with different adult habitats: the fish larvae assemblage was dominated by intertidal species. The present study has shown that temporal and spatial variations in the larval fish assemblage are related to environmental conditions and biological dynamics: the results suggest that abiotic conditions mediate biotic parameters, and that both abiotic and biotic characteristics regulated the larval fishes at very nearshore shallow environments.

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“…The nursery function of lagoons (Rogers et al, 1984in Rakocinski et al, 1996Elliott and Hemingway, 2002) and, as shown by temperature patterns in the Ria de Aveiro, seasonal changes appear to have greater importance to the fish assemblage than the position within the lagoon. Feeding analysis indicates that the fish species are mostly dependent on detritus, and small benthic and pelagic crustaceans.…”

Section: Discussionmentioning

confidence: 99%

“…Assemblages of estuarine organisms vary in time and space, largely because estuaries have widely varying environmental characteristics and serve as nurseries for many productive and dependent marine species (Rogers et al, 1984in Rakocinski et al, 1996Elliott and Hemingway, 2002). The habitats and fish assemblages are also potentially affected by several anthropogenic influences which may have a direct influence on the food resources, distribution, abundance, growth, survival and behaviour of the fauna present (Whitfield, 1996).…”

Section: Introductionmentioning

confidence: 99%

Environmental influences on fish assemblage distribution of an estuarine coastal lagoon, Ria de Aveiro (Portugal)

Pombo¹,

Elliott²,

Rebelo³

2005

Sci. Mar.

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SUMMARY: Fish assemblage was examined for patterns in spatial and seasonal structure within an estuarine coastal lagoon, Ria de Aveiro. Two years of variation in abiotic conditions were recorded to identify factors responsible for maintaining the structure of fish assemblages. Nine sites were sampled monthly with a traditional "chincha" beach-seine net between November 1998 and October 2000. Fish abundance and biomass changed significantly between sites. Temperature was found to be the most important abiotic factor affecting the abundance (number of fish) distribution of fish assemblage, which is more related to seasonal migrations than to spatial migrations. Salinity was the most important abiotic factor affecting the fish biomass, with temperature also having a major influence. The other abiotic parameters analysed also showed some influence on the distribution of fish, although, isolated from the other controlled and/or uncontrolled factors, they could not fully explain all the differences between assemblages. Feeding analysis indicates that fish assemblage is mostly dependent on small benthic and pelagic crustaceans and/or detritus, although they can feed opportunistically on other prey. The low spatial segregation of fish in relation to feeding preference indicates that, in a food-rich lagoon such as Ria de Aveiro, the environmental-biological interactions appear to have a greater effect on fish distribution than do biological interactions.Key words: fish fauna, diversity, environmental factors, Ria de Aveiro. RESUMEN: INFLUENCIAS AMBIENTALES EN LA DISTRIBUCIÓN DE LA COMUNIDAD DE PECES EN UNA LAGUNA COSTERA ESTUÁRI-CA, RIA DE AVEIRO (PORTUGAL). -La estructura espacial y estacional de la comunidad de peces fue examinada en una laguna costera estuárica, la Ria de Aveiro. La variación de las condiciones abióticas fue registrada durante dos años para identificar los factores responsables de mantener la estructura de las comunidades de peces. Nueve estaciones fueron muestreadas mensualmente con una red tradicional de arrastre tipo "chincha", entre noviembre 1998 y octubre de 2000. La abundancia y la biomasa variaron perceptiblemente entre las estaciones. La temperatura fue el factor abiótico más importante que afectó la distribución de la abundancia (número de individuos) de la comunidad de peces, fenómeno que se relaciona más con las migraciones estacionales que con las migraciones espaciales. La salinidad fue el siguiente factor abiótico más importante que afecta la biomasa de peces. Los otros parámetros abióticos analizados también demostraron una cierta influencia en la distribución de los peces, aunque, aislados de los otros factores controlados e incontrolados, no podrían explicar completamente todas las diferencias halladas en la comunidad. Los análisis de alimentación indican que la comunidad de peces es principalmente dependiente de los crustáceos de pequeño tamaño así como de detritos bentónicos y pelágicos, aunque pueden alimentarse de forma oportunística de otras presas. La baja segregación espacial ...

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Ichthyoplankton Assemblage Structure in Mississippi Sound as Revealed by Canonical Correspondence Analysis

Cited by 96 publications

References 21 publications

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Larval fish distribution in shallow coastal waters off North Western Iberia (NE Atlantic)

Environmental influences on fish assemblage distribution of an estuarine coastal lagoon, Ria de Aveiro (Portugal)

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