Significant Coastal Lagoon Systems in the South Island, New Zealand
Significant coastal lagoon systems in the South Island, New Zealand Coastal processes and lagoon mouth closure SCIENCE FOR CONSERVATION 146 R.M. Kirk and G.A. Lauder Published by Department of Conservation P.O. Box 10-420 Wellington, New Zealand Science for Conservation presents the results of investigations by DOC staff, and by contracted science providers outside the Department of Conservation. Publications in this series are internally and externally peer reviewed. Publication was approved by the Manager, Science & Research Unit, Science Technology and Information Services, Department of Conservation, Wellington. © April 2000, Department of Conservation ISSN 11732946 ISBN 0478219474 Cataloguing-in-Publication data Kirk, R. M. Significant coastal lagoon systems in the South Island, New Zealand : coastal processes and lagoon mouth closure / R.M. Kirk and G.A. Lauder. Wellington, N.Z. :Dept. of Conservation, 2000. 1 v. ; 30 cm. (Science for conservation, 1173-2946 ; 146.) Includes bibliographical references. ISBN 0478219474 1. LagoonsNew ZealandSouth Island. I. Lauder, G. A. II. Title. Series: Science for conservation (Wellington, N.Z.) ; 146. CONTENTS Abstract 5 1. Introduction 6 2. What is a lagoon? 8 2.1 Distinguishing coastal lagoons from estuaries 8 2.2 Definition of types of coastal lagoon 9 2.3 Distribution of coastal lagoons 10 3. Two types of coastal lagoon, South Island, New Zealand 11 3.1 River mouth lagoonshapua 11 3.2 Coastal lakesWaituna-type lagoons 15 3.2.1 Coastal geomorphic character and development 16 3.2.2 Wairau Lagoons 18 3.2.3 Waihora/Lake Ellesmere 18 3.2.4 Waituna Lagoon, Southland 24 3.3 Conclusions 27 4.
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