Filtration rate and bioremediatory potential of the tropical blacklip rock oyster Saccostrea lineage J

被引:1
作者
Rennie, Benjamin [1 ,2 ]
Nowland, Samantha J. [3 ,4 ,5 ]
Cooke, Ira R. [6 ,7 ]
Strugnell, Jan M. [1 ,2 ]
机构
[1] James Cook Univ, Ctr Sustainable Trop Fisheries & Aquaculture, Townsville, Qld 4811, Australia
[2] James Cook Univ, Coll Sci & Engn, Townsville, Qld 4811, Australia
[3] Northern Terr Govt, Dept Ind Tourism & Trade, Aquaculture Unit, Darwin, NT 0801, Australia
[4] Univ Sunshine Coast, Australian Ctr Pacific Isl Res, 90 Sippy Downs Dr, Sippy Downs, Qld 4556, Australia
[5] Charles Darwin Univ, Res Inst Environm & Livelihoods, Darwin, NT 0810, Australia
[6] James Cook Univ, Coll Publ Hlth Med & Vet Sci, Townsville, Qld 4811, Australia
[7] James Cook Univ, Ctr Trop Bioinformat & Mol Biol, Townsville, Qld 4811, Australia
关键词
Bioremediation; Aquaculture; Wastewater; Reef credit; Nutrient credit trading; Nitrogen; Phosphorus; Total suspended solids; CRASSOSTREA-CORTEZIENSIS HERTLEIN; SHELLFISH AQUACULTURE; PACIFIC OYSTER; WATER-QUALITY; WASTE-WATER; TEMPERATURE; SHRIMP; SALINITY; EFFLUENT; GROWTH;
D O I
10.3354/aei00477
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
The tropical blacklip rock oyster Saccostrea lineage J is an emerging aquaculture species displaying fast growth rates, large sizes and resilience to fluctuations in temperature and salinity, all characteristics that suggest it would be well-suited to bioremediatory applications. To investigate their bioremediatory potential, the present study aimed to (1) determine the influence of temperature (20, 24, 28, 32 degrees C) on the filtration rate of Saccostrea lineage J and (2) describe and quantify uptake in total nitrogen (TN), total phosphorus (TP), total suspended solids (TSS) and chlorophyll a (chl a), using prawn pond effluent and 2 levels of oyster stocking density. The results demonstrated that higher water temperatures promote a faster filtration rate and identified an optimal performance range of 24 to 32 degrees C for a filtration rate of 12.68 to 15.20 l h-1 g-1. In addition, the highest density (0.66 oysters l-1) of stocked oysters resulted in significant reduction of all water quality parameters, with TN reduced by 13%, TP by 16%, TSS by 95% and chl a by 29% when compared to unstocked controls after 3 h. Tissue analysis of 10 oysters with a mean whole weight of 75.4 g revealed a mean of 0.09 g of nitrogen per oyster. Scaling these values suggests that 1.20 kg of nitrogen is removed per tonne of harvested oysters. This study is the first to investigate the bioremediatory potential of Saccostrea lineage J and demonstrates their potential to improve aquaculture wastewater treatment practices and bioremediation.
引用
收藏
页码:133 / 144
页数:12
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