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 The plankton are then concentrated 3 Surface water samples are collected by 4 It is best to sample at particular time each day 5 While collecting the water samples 6 Irrespective of methods by allowing them to settle, centrifuging or fine filtration samples should be preserved soon after collection and where possible, live samples should also be examined 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 between 8.30 and 10.00 a.m. is the preferred time there should be minimum disturbance of water to prevent avoidance reaction by plankton for obtaining samples from the desired depths.