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Among the fishes, a remarkably wide range of biological adaptations
to diverse habitats has evolved. As well as living in the
conventional habitats of lakes, ponds, rivers, rock pools and the
open sea, fish have solved the problems of life in deserts, in the
deep sea, in the cold antarctic, and in warm waters of high
alkalinity or of low oxygen. Along with these adaptations, we find
the most impressive specializations of morphology, physiology and
behaviour. For example we can marvel at the high-speed swimming of
the marlins, sailfish and warm-blooded tunas, air-breathing in
catfish and lungfish, parental care in the mouth-brooding cichlids,
and viviparity in many sharks and toothcarps. Moreover, fish are of
considerable importance to the survival of the human species in the
form of nutritious, delicious and diverse food. Rational
exploitation and management of our global stocks of fishes must
rely upon a detailed and precise insight of their biology. The
Chapman & Hall Fish and Fisheries Series aims to present timely
volumes reviewing important aspects of fish biology. Most volumes
will be of interest to research workers in biology, zoology,
ecology and physiology but an additional aim is for the books to be
accessible to a wide spectrum of non-specialist readers ranging
from undergraduates and postgraduates to those with an interest in
industrial and commercial aspects of fish and fisheries.
Among the fishes, a remarkably wide range of biological adaptations
to diverse habitats has evolved. As well as living in the
conventional habitats of lakes, ponds, rivers, rock pools and the
open sea, fish have solved the problems of life in deserts, in the
deep sea, in the cold antarctic, and in warm waters of high
alkalinity or of low oxygen. Along with these adaptations, we find
the most impressive specializations of morphology, physiology and
behaviour. For example we can marvel at the high-speed swimming of
the marlins, sailfish and warm-blooded tunas, air-breathing in
catfish and lungfish, parental care in the mouth-brooding cichlids,
and viviparity in many sharks and toothcarps. Moreover, fish are of
considerable importance to the survival of the human species in the
form of nutritious, delicious and diverse food. Rational
exploitation and management of our global stocks of fishes must
rely upon a detailed and precise insight of their biology. The
Chapman & Hall Fish and Fisheries Series aims to present timely
volumes reviewing important aspects of fish biology. Most volumes
will be of interest to research workers in biology, zoology,
ecology and physiology but an additional aim is for the books to be
accessible to a wide spectrum of non-specialist readers ranging
from undergraduates and postgraduates to those with an interest in
industrial and commercial aspects of fish and fisheries.
This is a reprint of the classic first published in 1957. One of
the authors, Raymond Beverton, recently died. His co-author, Sidney
Holt, has written a new Foreword to this printing in which he
reviews events in fisheries research and management through the
past 50 years as these relate to their joint work. On the Dynamics
of Exploited Fish Populations has become the most widely cited
fisheries book ever published and the fact that the bulk of the
information contained within its covers is still valid has led to
this reprinting. Beverton and Holt's great work created a solid
foundation for one of the two major global visions of the science
of fisheries. This book was the genesis of the modern
age-structured approach to the optimal management of fishery
resources. Their approach led directly to a formulation of the
fishery catch equation with almost universal applicability. Its
advantage was that it produced easily interpreted outputs that
could be clearly and directly applied to any fishery. Ultimately,
this approach was the forerunner to VPA and allied techniques, the
core of modern catch forecasting used in setting quotas and in
managing commercial fisheries worldwide. Although the perception of
the objectives of fisheries research has changed since the 1950s,
and computers now enable calculations, data analysis, and
theoretical exploration far beyond their capability at the time,
Beverton and Holt will continue to be a source of inspiration and
insight for many years to come. Sidney J. Holt was educated at
Reading University, England. He has held academic positions at St
John's College, Cambridge, England; University of California at
Santa Cruz; University of Rhode Island; University of Malta. He is
the author of 400 scientific papers, book chapters and popular
articles, especially in the fields of fisheries science and
management, conservation, protection of marine mammals, especially
whales. He served 25 years in the United Nations system of
Specialised Agencies (including the FAO in Rome, UNESCO as
Secretary of the Intergovernmental Oceanographic Commission and
Director of Division of Marine Science; Marine Mammals; Advisor to
the United Nations Environment Programme; UN Adviser on
Mediterranean Marine Affairs, in which capacity he founded and
served as first Director of, the International Ocean Institute, in
Malta). Since his formal retirement Dr Holt has served on the
delegations of Italy and of the Republic of Seychelles to the
International Whaling Commission, and also as adviser to the
delegations of France and Chile. Dr Holt has worked extensively
with several Non-Governmental Organisations concerned with marine
conservation. Apart from continuing to write and campaign Dr Holt
advises the Third Millennium Foundation, and serves as Executive
Director of the International League for the Protection of
Cetaceans, which he founded 18 years ago.
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