Small estuaries: Ecology, environmental drivers and management challenges

Callaway, Ruth; Grenfell, S.E.; Lønborg, Christian

doi:10.1016/j.ecss.2014.06.009

Cited by 19 publications

(4 citation statements)

References 12 publications

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“…As the Taperaçu is a small estuary with less than 30 km in length, relatively small changes in forcing conditions may result in immediate impacts in the functioning of the estuary due to the extension of the domain affected. This means that estuaries of small size are appropriate for the modeling of the functioning of these systems under varying conditions (Callaway et al 2014;Andrade et al 2016) and the Taperaçu can be considered to be a paradigm of this type of estuarine environment. In this context, the hypothesis of the present study is that the phytoplankton biomass will scale to the level of rainfall to a certain point, after which the effects of light limitation will prevent biomass buildup.…”

Section: Introductionmentioning

confidence: 99%

Effects of Extreme Climatic Events on the Hydrological Parameters of the Estuarine Waters of the Amazon Coast

Costa

Pereira

Jiménez

et al. 2022

Estuaries and Coasts

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Title pageClick here to view linked References This study was financed by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), through a Universal project (483913/2012-0), and by CAPES (Ciências do Mar II -88882.158649/2014-01). The authors Pereira LCC (309491/2018-5) and Costa RM (311782/2017-5) would also like to thank CNPq for research grants, and Costa AK and is grateful to Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for research grants. We are also indebted to Stephen Ferrari for his careful revision of the English.

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Section: Introductionmentioning

confidence: 99%

Effects of Extreme Climatic Events on the Hydrological Parameters of the Estuarine Waters of the Amazon Coast

Costa

Pereira

Jiménez

et al. 2022

Estuaries and Coasts

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“…Those conditions create a biologically productive system, considered "hotspots" in the cycling and export of nutrients, increasing the rates of biological metabolism and the local primary production CALLAWAY et al, 2014;CLOERN et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Spatial and seasonal variation of microphytoplankton community and the correlation with environmental parameters in a hypereutrophic tropical estuary - Maranhão - Brazil

et al. 2017

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Duarte-dos-Santos et al.: Spatial-seasonal variation of microphytoplankton 356 Spatial and seasonal variation of microphytoplankton community and the correlation with environmental parameters in a hypereutrophic tropical estuary -Maranhão -BrazilThe Bacanga River Estuary has a hydrodynamic behavior and its tidal flow is limited by a dam. It is considered as a hypertrophic environment that receives daily high loads of domestic sewage without treatment. This study aimed to evaluate the spatial and temporal variation of phytoplankton community and its relationship with environmental parameters. Bi-monthly sampling campaigns were carried out at six fixed sites between 2012 and 2013. Physical-chemical and biological parameters were collected (chlorophyll a, phytoplankton composition and abundance) to perform the statistical correlations. The results indicate that phytoplankton community is mostly represented by diatoms, with Skeletonema costatum being the dominant species responsible for bloom in April and June of 2012. The dominance of this species is related to the high silicate concentrations, pH and turbidity. Other blooms events as well as the Euglena gracilis and Chlamydomonas sp. were recorded in February 2013, when the total phosphorus concentrations were high and the dissolved oxygen concentrations were higher. Dinoflagellates, cyanobacteria and diatom Thallassiosira sp. were widely distributed in the dry period and highly correlated with salinity, water transparency and nutrients. Hence, the distribution of phytoplankton community is more defined seasonally, rather than spatially. AbstrActDescriptors: Algal bloom, Microalgae, Nutrients.O estuário do rio Bacanga apresenta um comportamento hidrodinâmico com fluxo de marés limitado por uma barragem. Ele é considerado como um ambiente hipereutrófico que recebe diariamente altas cargas de esgoto doméstico sem tratamento. Este trabalho teve como objetivo avaliar a variação espaço-sazonal da comunidade fitoplanctônica e suas relações com parâmetros ambientais. Amostragens bimestrais foram realizadas em seis pontos fixos entre 2012 e 2013, obtendo valores dos parâmetros físico-químicos e biológicos (clorofila a, composição e abundância do fitoplâncton) para realização das análises estatísticas. Os resultados indicam que a comunidade fitoplanctônica é representada por diatomáceas, sendo Skeletonema costatum a espécie dominante responsável por pulsos de florações em abril e junho de 2012. O predomínio dessa espécie está relacionado aos elevados teores de silicato, pH e turbidez da água. Outros eventos de florações como da Euglena gracilis e Chlamydomonas sp. foram registrados em fevereiro de 2013, quando os teores de fósforo total estiveram elevados e as taxas de oxigênio dissolvido foram superiores. Os dinoflagelados, cianobactérias e a diatomácea Thallassiosira sp. apresentaram ampla distribuição no período de estiagem e estão altamente correlacionados com a salinidade, transparência da água e nutrientes. Desta forma, a distribuição da comunidade fitoplanctônica é ...

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“…In small transitional areas like the Pasaia estuary, the effect of disturbances and changes in processes may be more pronounced due to spatial limitations, hampering and prolonging recovery efforts (Callaway and Grenfell, 2014). The most significant anthropogenic pressures historically exerted on this area were nutrient loads, water and sediment pollution, dredgings, shoreline reinforcement, intertidal losses, number of berths and introduction of alien species (Borja et al, 2004;2006), and the derived environmental pressure was classified between high (Borja et al, 2006) and very high (Tueros et al, 2009).…”

Section: Study Area and Backgroundmentioning

confidence: 99%

Holocene vs Anthropocene sedimentary records in a human-altered estuary: The Pasaia case (northern Spain)

et al. 2020

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Small estuaries: Ecology, environmental drivers and management challenges

Cited by 19 publications

References 12 publications

Effects of Extreme Climatic Events on the Hydrological Parameters of the Estuarine Waters of the Amazon Coast

Effects of Extreme Climatic Events on the Hydrological Parameters of the Estuarine Waters of the Amazon Coast

Spatial and seasonal variation of microphytoplankton community and the correlation with environmental parameters in a hypereutrophic tropical estuary - Maranhão - Brazil

Holocene vs Anthropocene sedimentary records in a human-altered estuary: The Pasaia case (northern Spain)

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