A Towed Pump and Shipboard Filtering System for Sampling Small Zooplankters (Classic Reprint) - Softcover

Inhaltsangabe

Efficient, shipboard sampling of tiny zooplankters is within reach. This description highlights a towed pump and shipboard filtering system designed for quantitative collection of very small organisms, including crustaceans, during cruising speeds. The material here outlines the apparatus, its operation, and how it supports density estimates with known precision across areas and depths.

The book details how the system combines a collector with a pump, a suspension hose-cable, a winch, and a filtering unit to gather discrete samples in time and space. It explains why smaller mesh sizes are needed and how filtering rate can be measured independently of mesh. It also covers practical use at sea, sample handling, and issues like fouling and maintenance, offering a clear view of design decisions and operational results from 1961 field work.

• Learn how the towed pump and shipboard filtering unit collect zooplankters as small as 0.2 mm to 12.0 mm in length.


• Understand how the system produces discrete samples at cruising speed and can sample across a vertical range.


• See how filtering rate and efficiency are measured and how losses from escapement and entrapment are assessed.


• Gain insight into field-tested handling, cleaning, and maintenance procedures for reliable operations at sea.

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