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In the decade since the first edition of this book was published
advances have been made in our knowledge of the fresh waters of the
world, espe cially in understanding many of the processes involved
in their functioning as systems and in countering the problems
created by human activities. New problems too, many of an
international nature, have loomed during this period-of which
global warming and the acidification offresh waters in many parts
of the world are notable examples. In addition, much has now been
published concerning the aquatic flora, fauna and ecology of
previously poorly known geographic areas, notably Australasia. The
second edition of this book is a revision which updates the text in
the light of recent advances in our knowledge of freshwater
biology. Inevitably, in an elementary volume such as this, the
treatment of many of the basic principles and processes remains the
same. However, several new sections are included covering a range
of topics such as acid deposition and the acidification process,
bacterial decomposition and aquaculture. The book includes many new
references and suggestions for up-to-date reading in particular
topics. The objective of the second edition remains the same as
that of the first. It is intended as a basic introduction to the
major aspects of freshwater biology at a level suitable for
undergraduates. It should also prove useful, as apparently did the
first edition, Jo professional workers in related fields, e.g.
water engineers and chemists, aquaculturists and planners."
In the decade since the first edition of this book was published
advances have been made in our knowledge of the fresh waters of the
world, espe cially in understanding many of the processes involved
in their functioning as systems and in countering the problems
created by human activities. New problems too, many of an
international nature, have loomed during this period-of which
global warming and the acidification of fresh waters in many parts
of the world are notable examples. In addition, much has now been
published concerning the aquatic flora, fauna and ecology of
previously poorly known geographic areas, notably Australasia. The
second edition of this book is a revision which updates the text in
the light of recent advances in our knowledge of freshwater
biology. Inevitably, in an elementary volume such as this, the
treatment of many of the basic principles and processes remains the
same. However, several new sections are included covering a range
of topics such as acid deposition and the acidification process,
bacterial decomposition and aquaculture. The book includes many new
references and suggestions for up-to-date reading in particular
topics. The objective of the second edition remains the same as
that of the first. It is intended as a basic introduction to the
major aspects of freshwater biology at a level suitable for
undergraduates. It should also prove useful, as apparently did the
first edition, to professional workers in related fields, e.g.
water engineers and chemists, aquaculturists and planners."
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