Wu H.,Shanghai Ocean University |
Wu H.,Institution of Higher Education |
Huo Y.,Shanghai Ocean University |
Huo Y.,Institution of Higher Education |
And 6 more authors.
Marine Pollution Bulletin | Year: 2015
A cage experiment using the red alga Gracilaria chouae co-cultured with the black seabream Sparus macrocephalus in Xiangshan Bay, China was conducted to measure the nutrient flux of the integrated multi-trophic aquaculture (IMTA) system. Results showed that trash fish were the main nutrient input contributor and adult fish were the main nutrient output contributor in the system. Contents of N and P in adult fish accounted for 54.45% and 59.48% of N and P in trash fish and fry, which suggests that 45.55% of N and 40.52% of P generated by fish farming were released into to the water. G. chouae proved to be an efficient bioremediation species in this IMTA system. To balance the excess nutrients generated by the system, 231.09. kg of seedlings should be cultured and 5315.07. kg of adult seaweed should be harvested. © 2014 Elsevier Ltd.