Effect of coastline properties and wastewater on plankton composition and distribution in a stressed environment on the north coast of Olinda-PE (Brazil)

Pereira, Luci Cajueiro Carneiro; Jiménez, José A.; Koening, Maria Luise; Neto, Fernando Figueiredo Porto; Medeiros, Carmen; Costa, Rauquı́rio Marinho da

doi:10.1590/s1516-89132005000800018

Cited by 16 publications

(11 citation statements)

References 28 publications

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“…As a result, these organisms have a high value as biological indicators of water quality due to their high growth rates in response to abiotic and biotic oscillations (Day et al 1989, Espino et al 2000, Gómez and Licursi 2001. Species that indicate environmental eutrophication were observed by Lacerda et al (2004) and Pereira et al (2005) in contaminated urban areas, showing the high nutrient assimilation efficiency of these organisms (Smetacek 1998).…”

Section: Discussionmentioning

confidence: 99%

Seasonal effects of wastewater to the water quality of the Caeté river estuary, Brazilian Amazon

Pereira

Monteiro

Guimarães

et al. 2010

An. Acad. Bras. Ciênc.

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Bragança's socioeconomic situation is highly dependent on estuarine and marine biological resources that are influenced by tidal cycles and climatology. Field measurements (hydrological, hydrodynamic and microbiological variables) were taken in the most urbanized zone from Caeté estuary to characterise the quality of the local environment. During the dry period, the estuary was more eutrophic and presented the highest temperature (30.5 • C in Oct./06), salinity (17 psu in Feb./07), pH (8.24 in Feb./07) and fecal coliform (>1000 MPN/100 ml in Dec./06 and Feb./07) values. The phytoplankton Cyclotella meneghiniana, Coscinodiscus centralis and other r-strategist species were observed. The lack of basic hydric canalization was responsible for the local contamination, especially during the dry period when more concentrated wastewater from the city was emitted into the estuary, showing the human influence on the reduction of local estuarine water quality. In Bragança, the fishery is considered one of the main economic activities so, this contamination is worrisome because a large part of the local economy depends on biological resources and, thus, the contamination could negatively affect the environmental health of this Amazon ecosystem.

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Section: Discussionmentioning

confidence: 99%

Seasonal effects of wastewater to the water quality of the Caeté river estuary, Brazilian Amazon

Pereira

Monteiro

Guimarães

et al. 2010

An. Acad. Bras. Ciênc.

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“…Phytoplankton are known for their rapid responses to altered environmental conditions [6], such as anthropogenically introduced eutrophication of coastal waters [7], alteration of coastal configuration, degradation of environmental conditions e.g. sewage outfalls with the consequent water pollution [8,9] etc. The dynamic structure of phytoplankton communities directly reflects the health of aquatic ecosystems [10].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical and biological factors controlling water column metabolism in Sundarbans estuary, India

et al. 2012

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BackgroundSundarbans is the single largest deltaic mangrove forest in the world, formed at estuarine phase of the Ganges - Brahmaputra river system. Primary productivity of marine and coastal phytoplankton contributes to 15% of global oceanic production. But unfortunately estuarine dynamics of tropical and subtropical estuaries have not yet received proper attention in spite of the fact that they experience considerable anthropogenic interventions and a baseline data is required for any future comparison. This study is an endeavor to this end to estimate the primary productivity (gross and net), community respiration and nitrification rates in different rivers and tidal creeks around Jharkhali island, a part of Sundarbans estuary surrounded by the mangrove forest during a period of three years starting from November’08 to October’11.ResultsVarious physical and chemical parameters of water column like pH, temperature, conductivity, dissolved oxygen, turbidity, suspended particulate matter, secchi disc index, tidal fluctuation and tidal current velocity, standing crop and nutrients were measured along with water column productivity. Relationship of net water column productivity with algal biomass (standing crop), nutrient loading and turbidity were determined experimentally. Correlations of bacterial abundance with community respiration and nitrification rates were also explored. Annual integrated phytoplankton production rate of this tidal estuary was estimated to be 151.07 gC m-2 y-1. Gross primary productivity showed marked inter annual variation being lowest in monsoon and highest in postmonsoon period.ConclusionAverage primary production was a function of nutrient loading and light penetration in the water column. High aquatic turbidity, conductivity and suspended particulate matter were the limiting factors to attenuate light penetration with negative influence on primary production. Community respiration and nitrification rates of the estuary were influenced by the bacterial abundance. The estuary was phosphorus limited in postmonsoon whereas nitrogen-limited in premonsoon and monsoon period. High algal biomass and primary productivity indicated the estuary to be in eutrophic state in most of the time throughout the year. Our study also indicated a seasonal shifting between autotrophic and heterotrophic conditions in Sundarban estuarine ecosystem and it is a tropical, well mixed (high tidal influx) and marine dominated (no fresh water connection) system.

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“…Pereira et al (2005), em áreas abrigadas ao longo das praias de Casa Caiada e Rio Doce (litoral norte), realizaram um estudo sobre a estrutura das comunidades planctônicas.…”

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Variação temporal do fitoplâncton em três praias urbanas do litoral sul do estado de Pernambuco, Nordeste do Brasil

et al. 2010

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RESUMO -(Variação temporal do fi toplâncton em três praias urbanas do litoral Sul de Pernambuco, Nordeste do Brasil). Este trabalho teve como objetivo efetuar uma análise comparativa da estrutura da comunidade fi toplanctônica, variação da biomassa e dados ambientais, na zona de arrebentação das praias arenosas de Brasília Formosa (8º04'S; 34º52'W), Boa Viagem (8º07'S; 34º53'W) e Piedade (8º10'S; 34º54 'W) ) no período de estiagem. A morfologia e o hidrodinamismo dos ambientes de praia analisados não favoreceram a formação de manchas por acumulação de microalgas. Palavras-chave: praias arenosas, zona de arrebentação, clorofi la a, diatomáceas, Asterionellopsis glacialis ABSTRACT -(Phytoplankton temporal variation on three urban beaches of Pernambuco's South coast, Brazilian Northeast). This study aimed to make a comparative analysis of phytoplankton community structure, biomass variation and environmental data in the surf-zone of Brasilia Formosa (8º04'S; 34º52'W), Boa Viagem (8º07'S; 34º53'W) and Piedade (8º10'S; 34º54'W) sandy beaches, on the Pernambuco coast. Bottle and net samples were collected during the rainy season (May, June and July/2005) and the dry season (November, December/2005 and January/2006) with simultaneous environmental data collection (water temperature, salinity, suspended material, nitrite, nitrate, phosphate, silicate, rainfall, wind speed and direction). Among the 119 infrageneric taxa identifi ed, diatoms were the most representative group regarding abundance and frequency, notably Asterionellopsis glacialis ( ) in the dry season. Morphology and hydrodynamics were unfavorable to the formation of microalgae patches.

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Effect of coastline properties and wastewater on plankton composition and distribution in a stressed environment on the north coast of Olinda-PE (Brazil)

Cited by 16 publications

References 28 publications

Seasonal effects of wastewater to the water quality of the Caeté river estuary, Brazilian Amazon

Seasonal effects of wastewater to the water quality of the Caeté river estuary, Brazilian Amazon

Physicochemical and biological factors controlling water column metabolism in Sundarbans estuary, India

Variação temporal do fitoplâncton em três praias urbanas do litoral sul do estado de Pernambuco, Nordeste do Brasil

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