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Article

Filtering Activity and Nutrient Release by the Keratose Sponge Sarcotragus spinosulus Schmidt, 1862 (Porifera, Demospongiae) at the Laboratory Scale

Department of Biology, University of Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Laura Steindler
J. Mar. Sci. Eng. 2021, 9(2), 178; https://doi.org/10.3390/jmse9020178
Received: 3 January 2021 / Accepted: 6 February 2021 / Published: 10 February 2021
(This article belongs to the Special Issue New Perspectives in Sustainable Aquaculture)
Sponges are an important constituent of filter-feeder benthic communities, characterized by high ecological plasticity and abundance. Free bacteria constitute an important quota of their diet, making them excellent candidates in aquaculture microbial bioremediation, where bacteria can be a serious problem. Although there are studies on this topic, certain promising species are still under investigation. Here we report applied microbiological research on the filtering activity of Sarcotragus spinosulus on two different concentrations of the pathogenic bacterium Vibrio parahaemolyticus in a laboratory experiment. To evaluate the effects of the filtration on the surrounding nutrient load, the release of ammonium, nitrate, and phosphate was also measured. The results obtained showed the efficient filtration capability of S. spinosulus as able to reduce the Vibrio load with a maximum retention efficiency of 99.72% and 99.35% at higher and lower Vibrio concentrations, respectively, and remarkable values of clearance rates (average maximum value 45.0 ± 4.1 mL h−1 g DW−1) at the highest Vibrio concentration tested. The nutrient release measured showed low values for each considered nutrient category at less than 1 mg L−1 for ammonium and phosphate and less than 5 mg L−1 for nitrate. The filtering activity and nutrient release by S. spinosulus suggest that this species represents a promising candidate in microbial bioremediation, showing an efficient capability in removing V. parahaemolyticus from seawater with a contribution to the nutrient load. View Full-Text
Keywords: sponges; clearance rate; retention efficiency; excretion rate; nutrient release; Vibrio sponges; clearance rate; retention efficiency; excretion rate; nutrient release; Vibrio
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MDPI and ACS Style

Trani, R.; Corriero, G.; de Pinto, M.C.; Mercurio, M.; Pazzani, C.; Pierri, C.; Scrascia, M.; Longo, C. Filtering Activity and Nutrient Release by the Keratose Sponge Sarcotragus spinosulus Schmidt, 1862 (Porifera, Demospongiae) at the Laboratory Scale. J. Mar. Sci. Eng. 2021, 9, 178. https://doi.org/10.3390/jmse9020178

AMA Style

Trani R, Corriero G, de Pinto MC, Mercurio M, Pazzani C, Pierri C, Scrascia M, Longo C. Filtering Activity and Nutrient Release by the Keratose Sponge Sarcotragus spinosulus Schmidt, 1862 (Porifera, Demospongiae) at the Laboratory Scale. Journal of Marine Science and Engineering. 2021; 9(2):178. https://doi.org/10.3390/jmse9020178

Chicago/Turabian Style

Trani, Roberta, Giuseppe Corriero, Maria C. de Pinto, Maria Mercurio, Carlo Pazzani, Cataldo Pierri, Maria Scrascia, and Caterina Longo. 2021. "Filtering Activity and Nutrient Release by the Keratose Sponge Sarcotragus spinosulus Schmidt, 1862 (Porifera, Demospongiae) at the Laboratory Scale" Journal of Marine Science and Engineering 9, no. 2: 178. https://doi.org/10.3390/jmse9020178

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