Effects of different aquaculture methods for introduced bivalves (Hyriopsis cumingii) on seston removal and phosphorus balance at the water–sediment interface

Abstract

A field simulation experiment was conducted to test the hypothesis that altering bivalve aquaculture methods could promote the restoration of eutrophic waterbodies. We used three aquaculture methods -benthic aquaculture, suspended aquaculture, and macrophytes/bivalve combined aquaculture -to (1) investigate their effects on seston removal through monitoring water turbidity, pelagic and benthic algae, and (2) compare their impacts on the phosphorus (P) balance at the water-sediment interface by determining different forms of P contents in the water and sediments. The results showed that the seston removal effects did not differ significantly among these three aquaculture methods. Furthermore, the changes of all investigated P parameters in the water and sediments showed that P release occurred in the benthic and suspended aquaculture treatments. The suspended aquaculture strengthened the regeneration of P from sediments into the water compared with the benthic aquaculture. In addition, the results of a principal component and classification analysis showed that macrophytes/bivalve combined aquaculture promoted the maintenance of restoration effects and P balance at the water-sediment interface. In conclusion, benthic aquaculture coupled with replanting submerged macrophytes is a better choice for water managers when using biomanipulation of bivalves to remedy eutrophic waterbodies.

Combined effects of ration levels and temperature on immune responses of the triangle sail mussel Hyriopsis cumingii

“…The triangle sail mussel Hyriopsis cumingii has high economic and ecological application value because of its pearl performance and water purification capacity (He et al, 2014;Wang et al, 2018). In the traditional cultivation mode of H. cumingii, massive organic fertilizers (duck manure, bird manure, chicken manure, etc.)…”

Effective treatment of aquaculture wastewater with mussel/microalgae/bacteria complex ecosystem: a pilot study

“…Compared with the traditional chemical method, the cost of biological treatment was not high 44 , 45 . Although mussel farming for water remediation was evaluated in lagoon 9 , pond 46 , and lake 47 , mussel/microalgae/bacteria farming in this study proved that it can be a cost-effectiveness of pollution control method, and good for the development of local aquaculture industry.…”

Molecular and biochemical effects on metabolism and immunity of Hyriopsis cumingii fed with four different microalgae

“…On the other hand, freshwater bivalves have been considered a biomanipulation tool to control water eutrophication based on ecological functions such as biofiltration, biodeposition, and bioturbation (Gulati et al, 2008;Gu et al, 2020). In smallscale bivalve biomanipulation experiments, H. cumingii can effectively reduce concentrations of total suspended solids and the number of cyanobacteria, increase transparency, and change the community structure of phytoplankton in water (He et al, 2014;Wang et al, 2018). Toxic algae Microcystis aeruginosa is the most common species from cyanobacterial blooms, which causes adverse effects on the physiological responses of H. cumingii (Hu et al, 2016).…”