Fecal contamination in shallow temperate estuarine lagoon: Source of the pollution and environmental factors

Kataržytė, Marija; Mėžinė, Jovita; Vaičiūtė, Diana; Liaugaudaitė, S.; Mukauskaitė, K.; Umgiesser, Georg; Schernewski, Gerald

doi:10.1016/j.marpolbul.2018.06.022

Cited by 29 publications

(14 citation statements)

References 46 publications

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“…Large colonies of aquatic birds have the potential to affect, via droppings, the water quality of aquatic ecosystems [27][28][29][30]. They may affect microbial communities [29,[31][32][33][34], increase nutrient availability [15,[35][36][37][38] and stimulate phytoplankton or macrophyte growth [39,40]. Results from our experiment suggest that feces from herbivorous and piscivorous aquatic birds may produce different effects on dissolved inorganic nutrient concentrations, their ecological stoichiometry, and phytoplankton growth rates, but not on algal community composition and bacterial enrichment.…”

Section: Discussionmentioning

confidence: 94%

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

Petkuvienė

Vaičiūtė

Kataržytė

et al. 2019

Water

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Aquatic birds may impact shallow ecosystems via organic and nutrient enrichment with feces. Such input may alleviate nutrient limitation, unbalance their ecological stoichiometry, and stimulate primary production. Herbivorous and piscivorous birds may produce different effects on aquatic ecosystems due to different physiology, diet and feces elemental composition. We analyze the effects of droppings from swans (herbivorous) and cormorants (piscivorous) on phytoplankton growth via a laboratory experiment. These birds are well represented in the Curonian Lagoon, where they form large colonies. As this lagoon displays summer algal hyper-blooms, we hypothesize an active, direct role of birds via defecation on algal growth. Short-term incubations of phytoplankton under low and high feces addition produces different stimulation of algal growth, significantly higher with high inputs of cormorant feces. The latter produces a major effect on reactive phosphorus concentration that augments significantly, as compared to treatments with swan feces, and determines an unbalanced, N-limited stoichiometry along with the duration of the experiment. During the incubation period, the dominant algal groups switch from blue-green to green algae, but such switch is independent of the level of feces input and from their origin. Heterotrophic bacteria also are stimulated by feces addition, but their increase is transient.

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Section: Discussionmentioning

confidence: 94%

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

Petkuvienė

Vaičiūtė

Kataržytė

et al. 2019

Water

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“…Pollution from a combination of shipping, military and industrial sources is heavily affecting the Lagoon influencing local tourism and economics. Untreated sewage also have increased the pathogenic organisms loads [26]. Not surprisingly, fishing and bathing in the lagoon have declined significantly in modern times.…”

Section: The Curonian Lagoonmentioning

confidence: 99%

Synergistic Use of Synthetic Aperture Radar and Optical Imagery to Monitor Surface Accumulation of Cyanobacteria in the Curonian Lagoon

Santi

Luciani

Bresciani

et al. 2019

JMSE

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Phytoplankton blooms in internal water bodies are an unpleasant sight that often emerges on top like a layer of foam containing high concentrations of toxins (scum event). Monitoring the concentration of algae and the occurrence of scum in lakes and lagoons has become a topic of interest for management and science. Optical remote sensing is a validated tool but unfortunately it is highly hindered by clouds. For regions with frequent cloud cover, such as the Baltic region, this means loss of data, which limits the purpose of sensing to spatially and temporally characterize any scum for a comprehensive ecological analysis. The aim of this paper is to investigate whether the use of synthetic aperture radar (SAR) images can compensate for the weaknesses of optical images for cyanobacteria bloom monitoring purposes in the event of cloudy skies. A “ready to use” approach to detect cyanobacteria bloom in the Curonian Lagoon based on the level 2 ocean product of Sentinel-1 images is proposed. This method is empirically validated for the images of summer/autumn 2018 of the Curonian Lagoon.

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“…A bactéria Escherichia coli é considerada um indicador de contaminação fecal 35 . Na análise microbiológica do Rio dos Índios, observa-se que apenas o ponto de amostragem P1 atende ao valor limite estabelecido pela Resolução Conama 357/2005.…”

Section: Ensaio Microbiológicounclassified

Water Quality of Rio dos Índios Under the Influence of Agro-Industrial Activities and Urbanization

et al. 2019

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Agro-industrial activity and urbanisation along river beds have a strong impact on the contamination of water bodies due to the discharge of sewage and industrial effluents. The Índios River, located in the city of Presidente Getúlio/SC, Brazil was assessed for pH, turbidity, dissolved oxygen, nitrate, nitrite, phosphorus, microbiological analysis (Escherichia coli), biochemical oxygen demand, chemical oxygen demand, oils and grease, and dissolved iron. The results were compared with the Resolution 357/2005 of the National Environmental Council. The results show that the following parameters and respective average values do not answer Resolution: pH (5.50), phosphorus (0.11-0.51 mg L −1 ), oils and greases (24.00-46.33 mg L −1 ), dissolved iron (0.86-1.29 mg L −1 ) and Escherichia coli (432.07-2419.60 MPN per 100 mL).

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Fecal contamination in shallow temperate estuarine lagoon: Source of the pollution and environmental factors

Cited by 29 publications

References 46 publications

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

Synergistic Use of Synthetic Aperture Radar and Optical Imagery to Monitor Surface Accumulation of Cyanobacteria in the Curonian Lagoon

Water Quality of Rio dos Índios Under the Influence of Agro-Industrial Activities and Urbanization

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