On fixation and preservation of gelatinous plankters

T. Balachandran

Abstract



The techniques adopted for fixation and preservation of gelatinous plankters, collected during the International Indian Ocean Expedition, could not explain for the bad state of their preservation as the data available in most cases were not comparable. Hence a series of experiments were set up at the IOBC to investigate into the old and new fixing and preserving procedures for gelatinous plankters. Results showed that one percent formaldehyde in sea water prepared from stock formaldehyde neutralised with excess calcium carbonate is the best among the test preservatives used

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