Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251311765
Category : Technology & Engineering
Languages : en
Pages : 196
Book Description
This handbook provides guidance on methods for use in fish ageing studies. Fish age, among other biological parameters, is one of the most relevant pieces of data to attain sustainable exploitation levels of fishery resources. Indeed, most analytical methods used in stock assessment require knowledge of demographic structure according to age of stocks, as well as to recruitment, growth, maturity, natural mortality, etc., which are strictly linked to information on age and age structure. The handbook was put together to deal with identified gaps – which affect both the precision and the accuracy of estimations – regarding ageing schemes, criteria and methodologies used in preparing calcified structures. It focuses on the general principles that underpin age analysis (assignment of birth date, preparation methods, aging scheme reading and identification of true and false rings). Crucially, it aims to contribute to the establishment of common analysis methods, which can enable better calibration across the diverse institutes involved, thereby improving the quality and reliability of results.
Handbook on fish age determination: a Mediterranean experience
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251311765
Category : Technology & Engineering
Languages : en
Pages : 196
Book Description
This handbook provides guidance on methods for use in fish ageing studies. Fish age, among other biological parameters, is one of the most relevant pieces of data to attain sustainable exploitation levels of fishery resources. Indeed, most analytical methods used in stock assessment require knowledge of demographic structure according to age of stocks, as well as to recruitment, growth, maturity, natural mortality, etc., which are strictly linked to information on age and age structure. The handbook was put together to deal with identified gaps – which affect both the precision and the accuracy of estimations – regarding ageing schemes, criteria and methodologies used in preparing calcified structures. It focuses on the general principles that underpin age analysis (assignment of birth date, preparation methods, aging scheme reading and identification of true and false rings). Crucially, it aims to contribute to the establishment of common analysis methods, which can enable better calibration across the diverse institutes involved, thereby improving the quality and reliability of results.
Publisher: Food & Agriculture Org.
ISBN: 9251311765
Category : Technology & Engineering
Languages : en
Pages : 196
Book Description
This handbook provides guidance on methods for use in fish ageing studies. Fish age, among other biological parameters, is one of the most relevant pieces of data to attain sustainable exploitation levels of fishery resources. Indeed, most analytical methods used in stock assessment require knowledge of demographic structure according to age of stocks, as well as to recruitment, growth, maturity, natural mortality, etc., which are strictly linked to information on age and age structure. The handbook was put together to deal with identified gaps – which affect both the precision and the accuracy of estimations – regarding ageing schemes, criteria and methodologies used in preparing calcified structures. It focuses on the general principles that underpin age analysis (assignment of birth date, preparation methods, aging scheme reading and identification of true and false rings). Crucially, it aims to contribute to the establishment of common analysis methods, which can enable better calibration across the diverse institutes involved, thereby improving the quality and reliability of results.
Age and Growth of Fishes
Author: Michael Carl Quist
Publisher:
ISBN: 9781934874486
Category : Fishes
Languages : en
Pages : 359
Book Description
Publisher:
ISBN: 9781934874486
Category : Fishes
Languages : en
Pages : 359
Book Description
Age Determination Methods for Fishes Studied by the Groundfish Program at the Pacific Biological Station
Author: D. E. Chilton
Publisher: Government of Canada, Fisheries and Oceans, Scientific Information and Publications Branch
ISBN:
Category : Fishes
Languages : en
Pages : 116
Book Description
This manual describes methods and equipment used to estimate the ages of groundfish species studied by the Pacific Biological Station. Procedures for routine identification of annuli on scales, otoliths, otolith section, fin-ray sections, and spines are described and illustrated. Although the techniques are applied to species found off Canada's west coast, they should be applicable to other marine and freshwater fishes from temperate and arctic waters. Because some of the procedures are experimental and many have not been validated, it is expected that this manual will be revised several times.
Publisher: Government of Canada, Fisheries and Oceans, Scientific Information and Publications Branch
ISBN:
Category : Fishes
Languages : en
Pages : 116
Book Description
This manual describes methods and equipment used to estimate the ages of groundfish species studied by the Pacific Biological Station. Procedures for routine identification of annuli on scales, otoliths, otolith section, fin-ray sections, and spines are described and illustrated. Although the techniques are applied to species found off Canada's west coast, they should be applicable to other marine and freshwater fishes from temperate and arctic waters. Because some of the procedures are experimental and many have not been validated, it is expected that this manual will be revised several times.
Age Determination in Fish and Wildlife
Author: Smithsonian Institution. Science Information Exchange
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Some Considerations on the Theory of Age Determination of Fish from Their Scales
Author: Roman Sych
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 80
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 80
Book Description
Studies of Age-Determination in Fish
Author: Godfrey Michael GRAHAM
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Age Determination of Fish (preliminary Report 1)
Author: Hiroaki Aikawa
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 24
Book Description
Age Determination of Fishes
Author: Fred E. Lux
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 10
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 10
Book Description
A Manual to Aid in Fish Age Determination
Author: Kenneth D. McCloskey
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 13
Book Description
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 13
Book Description
Elements of the Theory of Age Determination of Fish According to Scales
Author: Roman Sych
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description