Materials and Methods for Tagging Tuna and Billfishes, Recovering the Tags and Handling the Recapture Data
Materials and Methods for Tagging Tuna and Billfishes, Recovering the Tags and Handling the Recapture Data

Author: William H. Bayliff

Publisher: Food & Agriculture Org.

Published: 1986

Total Pages: 44

ISBN-13: 9789251024751

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Conventional tags are applied to tunas and billfishes, using several different methods to handle the fish. The importance of making satisfactory arrangements for collecting the tagged fish which are recaptured, and the pertinent data, is discussed. Some suggestions for handling the data are given. Ultrasonic telemetry has been used extensively on tunas and billfishes during the last few years. Fishing techniques, transmitter attachment, hydrophone systems, and data collection and storage are discussed. Some tagging systems which may be used on tunas and billfishes in the future are described.

Observer Program Operations Manual
Observer Program Operations Manual

Author: Gus Van Helvoort

Publisher: Bernan Press(PA)

Published: 1986

Total Pages: 588

ISBN-13:

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This manual provides an integrated approach to the management of observer programs by combining the complementary observer tasks of biodata collection and the monitoring of compliance to regulations on offshore fishing vessels. The multitude of duties and responsibilities that pertain to the observer's work are outlined within the context of his mandate to observe, record and report. The techniques for gathering data and the format in which it is reported are detailed fully.