Identifying the main factors on spatial diff erences in net growth rate of Yesso scallop(Patinopecten yessoensis)in culture system is the key to eff ective aquaculture management and development.Coupling a 3D ecosyste...Identifying the main factors on spatial diff erences in net growth rate of Yesso scallop(Patinopecten yessoensis)in culture system is the key to eff ective aquaculture management and development.Coupling a 3D ecosystem model(ROMS-CoSiNE)with a dynamic energy budget model for scallops,a Yesso scallop culture ecosystem(YeSCE)model was established with which scallop growth was simulated with real seeding density and juvenile size from local aquaculture experiments from December 1,2012 to November 30,2013.Results show that the YeSCE model has reasonably simulated the environmental variation and scallop net growth rate in the Changhai sea area.The growth of scallops was slow in winter and midsummer and was limited mainly by temperature.Food availability was a key factor that contributed to the fast growth of the scallops during spring to early summer and in autumn.Generally,the scallops cultured in the north part of the Changhai sea area grew faster than those in the south;and the net growth rate for scallops cultured near the island was signifi cantly higher compare to the others,which is probably correlated to the spatial distribution of food availability.Based on the correlation analysis,the spatial diff erences of the net growth rate were largely aff ected by the length of the match timing of temperatures and food availability.The results of this study provide a scientifi c support for optimizing bottom culture planning and adjusting bottom culture methods.展开更多
Restoration ecologists recognize the need for restoring ecosystem services in sustainable ways that meet societal needs.In the UK,Ireland,Australia,and some US states the goal is restoring native oyster reefs.In other...Restoration ecologists recognize the need for restoring ecosystem services in sustainable ways that meet societal needs.In the UK,Ireland,Australia,and some US states the goal is restoring native oyster reefs.In other states,failures at restoration due to poor water quality and predation have focused restoration activities on techniques that work,restoring intertidal reefs and generating living shorelines that reduce or reverse erosion.In the United States,restoring water quality and reducing or reversing erosion are societally accepted entry points for repairing estuarine ecosystems.This study is an overview of the current status of oyster reef restoration and provide a novel approach called“oyster reef in a bag”.Combining oyster reef restoration efforts with existing floating oyster aquaculture technology generates novel ecosystems that are a combination of biofouling and oyster reef communities.These novel ecosystems could be a practical beginning to improve water quality,mitigate erosion and restore higher trophic level ecosystem services.展开更多
基金Supported by the National Key Research and Development Program of China(Nos.2017YFC1404403,2016YFC1401602)the National Natural Science Foundation of China(No.41806018)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA23050502)。
文摘Identifying the main factors on spatial diff erences in net growth rate of Yesso scallop(Patinopecten yessoensis)in culture system is the key to eff ective aquaculture management and development.Coupling a 3D ecosystem model(ROMS-CoSiNE)with a dynamic energy budget model for scallops,a Yesso scallop culture ecosystem(YeSCE)model was established with which scallop growth was simulated with real seeding density and juvenile size from local aquaculture experiments from December 1,2012 to November 30,2013.Results show that the YeSCE model has reasonably simulated the environmental variation and scallop net growth rate in the Changhai sea area.The growth of scallops was slow in winter and midsummer and was limited mainly by temperature.Food availability was a key factor that contributed to the fast growth of the scallops during spring to early summer and in autumn.Generally,the scallops cultured in the north part of the Changhai sea area grew faster than those in the south;and the net growth rate for scallops cultured near the island was signifi cantly higher compare to the others,which is probably correlated to the spatial distribution of food availability.Based on the correlation analysis,the spatial diff erences of the net growth rate were largely aff ected by the length of the match timing of temperatures and food availability.The results of this study provide a scientifi c support for optimizing bottom culture planning and adjusting bottom culture methods.
文摘Restoration ecologists recognize the need for restoring ecosystem services in sustainable ways that meet societal needs.In the UK,Ireland,Australia,and some US states the goal is restoring native oyster reefs.In other states,failures at restoration due to poor water quality and predation have focused restoration activities on techniques that work,restoring intertidal reefs and generating living shorelines that reduce or reverse erosion.In the United States,restoring water quality and reducing or reversing erosion are societally accepted entry points for repairing estuarine ecosystems.This study is an overview of the current status of oyster reef restoration and provide a novel approach called“oyster reef in a bag”.Combining oyster reef restoration efforts with existing floating oyster aquaculture technology generates novel ecosystems that are a combination of biofouling and oyster reef communities.These novel ecosystems could be a practical beginning to improve water quality,mitigate erosion and restore higher trophic level ecosystem services.
