Aquafin CRC Salmon Project - Process Study 4 - Water Column Spatial Survey - Port Esperance - November 2007

Process Study 4 was undertaken in Port Esperance on 01 November 2007. During the spatial survey samples were collected from eight sites for the analysis of nutrients, phytoplankton species identification, chlorophyll and carotenoid pigments and the absorption coefficient for the dissolved (CDOM) component of the water column. Three depths were sampled (0, 3 and 2 m from the bottom) for the nutrient analyses, a surface sample was collected for the CDOM analysis and a 12 m integrated water column sample was collected for the pigment analysis and phytoplankton species identification. At each site prior to the collection of the samples a CTD profile to near bottom was collected and the Secchi depth measured. A further sample was collected, using a bucket, from near the bridge at Port Esperance and analysed for salinity, CDOM absorption and nutrient concentration. PLEASE NOTE - The phytoplankton results were updated in June 2012 with a correction. The original biovolume unit in column L and M was incorrect and should have been µL/L. The values in column M and L have been divided by 1000 and the unit mL/L left unchanged. Other values are not affected including CPL and Group CPL.过程研究4（Process Study 4）于2007年11月1日在埃斯佩兰斯港（Port Esperance）开展。本次空间调查期间，研究人员从8个站点采集了样本，用于营养盐分析、浮游植物物种鉴定、叶绿素与类胡萝卜素色素分析，以及水柱中溶解有色可溶性有机物（CDOM）组分的吸收系数测定。营养盐分析采集了距水底0米、3米及2米处的3个深度样本；CDOM分析采集表层水样；色素分析与浮游植物物种鉴定则采集了12米整合水柱样本。每个站点在采样前，均完成了近水底的温盐深（CTD）剖面测量，并测定了赛氏盘透明度（Secchi depth）。此外，研究人员使用水桶在埃斯佩兰斯港的桥梁附近采集了一份额外样本，用于盐度、CDOM吸收系数及营养盐浓度分析。请注意：浮游植物分析结果已于2012年6月完成修正更新。原L列与M列的生物体积单位存在错误，正确单位应为µL/L；原L列与M列的数值已除以1000，且单位mL/L保持不变。其余数值（包括CPL及CPL组）均未受影响。