Spatial distribution and assemblage structure of macrobenthic invertebrates in a brackish lake in relation to environmental variables

Nanami, Atsushi; Saito, Hajime; Akita, Takahiro; Motomatsu, Kei-ichiro; Kuwahara, Hisami

doi:10.1016/j.ecss.2004.11.004

Cited by 57 publications

(33 citation statements)

References 51 publications

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“…15.0 software. The degree of similarity of crustacean zooplankton assemblages among the 11 sites was calculated using the Bray-Curtis similarity coefficient and Ward's method based on the abundance of each species in PCORD (Nanami et al, 2005). Pearson's Correlation Analysis was used to determine the relationships between zooplankton abundance and the environmental variables using SPSS ver.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution of crustacean zooplankton in a large river-connected lake related to trophic status and fish

Wei

Chen²,

Wang

et al. 2017

J Limnol

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It has been reported that community structure of crustacean zooplankton is related to environment factors and abundance of predacious fishes. Most studies, however were based on observation on independent water bodies, which may complicate the results with uninterested factors. A large river-connected lake has partitioned regions with the characteristics of either a river or a lake albeit allowing exchanging of zooplankton of different regions. Thus, a river-connected lake is an ideal system for studying distribution of crustacean zooplankton and investigating its affecting factors. In this study, 11 stations of a large river-connected lake, Lake Gaoyou, were sampled in all four seasons. Taxonomic diversity and species abundance were recorded and their correlation with environmental factors was investigated. A total of 26 and 22 species of crustacean zooplankton were recorded in the river and lake region, respectively. The abundance of crustacean in the river region was significantly higher than that in the lake region. The relative abundance of calanoids and Bosmina fatalis in the river region was lower than that in the lake region, whereas the abundance of cyclopoids and other cladocera species was lower in the lake region than in the river region. Cluster analysis showed that crustacean assemblages could be divided into two, one cluster grouping all sites from the river region, and the other cluster included all sites in the lake region. According to Pearson correlation and canonical correspondence analysis, the distribution of crustacean was positively correlated with water temperature and chlorophyll a gradient. Chlorophyll a and fish abundance are excellent predictors on spatial distribution of crustacean zooplankton in Lake Gaoyou. Our findings may also help in planning of bighead carp stocking in Lake Gaoyou.

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Section: Discussionmentioning

confidence: 99%

Spatial distribution of crustacean zooplankton in a large river-connected lake related to trophic status and fish

Wei

Chen²,

Wang

et al. 2017

J Limnol

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“…Assim sendo, a ecologia possui responsabilidade na solução de problemas ambientais (Levins e Lewontin, 1980;Begon et al, 1990), e está diretamente relacionada ao fornecimento de informações apropriadas para a preservação da diversidade biológica (Lubchenco et al, 1991). A compreensão dos padrões de distribuição de organismos em seus habitats é de vital importância, uma vez que a natureza desta distribuição fornece informações acerca dos fatores físicos e processos ecológicos que regulam as populações e comunidades (Levins e Lewontin, 1980;Nanami et al, 2005). Na prática, existe a necessidade de testar a existência de padrões consistentes para que, posteriormente, possam ser realizados estudos sobre mecanismos causais (Underwood et al, 2000).…”

Section: Francisco Carlos Rocha De Barros Junior Igor Cristino Silva unclassified

“…Apesar da grande variabilidade inerente aos estuários, vários trabalhos mostram que assembléias bentônicas podem demonstrar respostas previsíveis (e.g. Stark et al, 2003;Nanami et al, 2005).…”

Section: O Bentos Estuarinounclassified

Baía de todos os santos: aspectos oceanográficos

Andrade¹,

Hatje²

2009

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Este livro agrega informações que subsidiam o entendimento da oceanografia da Baía de Todos os Santos. Propicia o embasamento científico para a interpretação de sua situação atual com vistas ao planejamento de futuros projetos de pesquisa e de ações gerenciais que venham a garantir a recuperação e a preservação de sua riqueza natural, como recifes de corais, estuários, manguezais, bem como a promoção da qualidade de vida das populações do Recôncavo Baiano.

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“…The abundances and assemblage structures of bivalves and other macrobenthos vary spatially at various scales from 10 to 10 5 m (Morrisey et al 1992, Ysebaert & Herman 2002. The spatial distribution patterns are closely related to environmental factors, such as sediment types, tidal level, and salinity (Ysebaert & Herman 2002, Nanami et al 2005, Kanaya & Kikuchi 2008.…”

Section: Introductionmentioning

confidence: 99%

Spatial variation in the abundance and condition of the bivalve Nuttallia olivacea in relation to environmental factors and sublethal predation

Tomiyama¹,

Komizunai²,

Ito

et al. 2010

Mar. Ecol. Prog. Ser.

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Our aim was to assess the spatial heterogeneity in the abundance and condition of the tellinacean bivalve Nuttallia olivacea in estuarine tidal flats, as well as to reveal the relationships between these variables and abiotic and biotic factors. The intensity of sublethal siphon predation by juvenile stone flounder Platichthys bicoloratus was considered as a possible factor affecting the bivalve condition. A 2-scale sampling of stations at 200 to 800 m intervals and 2 to 5 plots at 5 to 20 m intervals on a transect line at each station was conducted in the Natori River estuary, Japan. Abundance and somatic condition greatly varied at both scales. Densities varied from 0 to 4902 ind. m -2 among stations and from 2480 to 6448 ind. m -2 among plots at the station with the highest density. Body mass index varied from 4.0 to 5.0 between stations and from 4.9 to 5.7 between plots at the station with the highest body mass. It was commonly observed that N. olivacea was abundant and that body condition was high at sites with low silt-clay contents and low elevations, as revealed by generalized linear models. A negative influence of siphon predation was detected only on somatic condition, but it accounted for only 1.2% of the variation, whereas environmental variables accounted for 30.2%. These results indicate that environmental variables are key factors affecting bivalve abundance and condition, while sublethal predation is only a potential factor affecting bivalve condition.

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Spatial distribution and assemblage structure of macrobenthic invertebrates in a brackish lake in relation to environmental variables

Cited by 57 publications

References 51 publications

Spatial distribution of crustacean zooplankton in a large river-connected lake related to trophic status and fish

Spatial distribution of crustacean zooplankton in a large river-connected lake related to trophic status and fish

Baía de todos os santos: aspectos oceanográficos

Spatial variation in the abundance and condition of the bivalve Nuttallia olivacea in relation to environmental factors and sublethal predation

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