Physical and chemical parameters of several oyster growing areas in Tasmania: Little Swanport

Physical and chemical parameters at five Pacific oyster (Crassostrea gigas) growing areas in Tasmania - Pittwater, Pipeclay Lagoon, Little Swanport, Georges Bay and Simpsons Bay - were measured as part of a study to determine the carrying capacity of the areas for oyster farming. The data represented by this record, was collected in Little Swanport. This has provided valuable environmental data for these areas. The hydrodynamic regimes at each area except Simpsons Bay were studied, including high and low water volumes, flushing rates, flow rates and depth contours.

Temperature, salinity and concentrations of nitrates, phosphates, silicates and chlorophyll a were measured monthly at several sites in each area. The change in these parameters over different time scales also was examined at two sites in Pittwater and indicated temporal and spatial variability in the environmental parameters measured.

本研究针对塔斯马尼亚州的五个太平洋牡蛎（Pacific oyster，学名*Crassostrea gigas*）养殖区域——皮特沃特（Pittwater）、管黏土潟湖（Pipeclay Lagoon）、小斯旺波特（Little Swanport）、乔治湾（Georges Bay）以及辛普森湾（Simpsons Bay）——开展了理化参数测定工作，以评估各区域的牡蛎养殖承载力。本记录对应的数据采集自小斯旺波特区域，为上述养殖区提供了极具价值的环境监测数据。除辛普森湾外，研究团队对其余各区域的水动力状况展开了调研，涵盖高低潮水量、水体交换速率、流速以及水深等值线等内容。
各区域内多个监测点位均按月开展温度、盐度以及硝酸盐、磷酸盐、硅酸盐与叶绿素a（chlorophyll a）浓度的测定工作。研究人员还在皮特沃特的两个监测点位对上述参数的不同时间尺度变化特征进行了分析，结果显示所监测的环境参数存在显著的时空变异性。