Matching Pairs Sampling phytoplanktonOnline version Match the columns to create sentences describing sampling phytoplankton by Anna Wielgopolan 1 The sampling bottles or water samplers with closing mechanisms are commonly used 2 It is best to sample at particular time each day 3 Surface water samples are collected by 4 Irrespective of methods 5 While collecting the water samples 6 The plankton are then concentrated dipping a well-rinsed bucket or bottle over the side of the boat, let it fill half with water and bring it back into the boat there should be minimum disturbance of water to prevent avoidance reaction by plankton by allowing them to settle, centrifuging or fine filtration for obtaining samples from the desired depths. samples should be preserved soon after collection and where possible, live samples should also be examined between 8.30 and 10.00 a.m. is the preferred time