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Ilyanassa obsoleta is mainly an eastern North American estuarine gastropod. Previous work on growth rate revealed a longevity of 30–40 y for this snail. Trematode infections retard growth, appear to… (More)
Abstract Populations of Ilyanassa obsoleta (Gastropoda) in Delaware estuaries were assessed for imposex. This phenomenon involves the abnormal imposition of male features on females and is associated… (More)
vi Acknowledgments viii List of Figures xi List of Tables xiv Chapter One 1 General Introduction Introduction 1 The Role of Stratospheric Ozone 2 The Basic Concepts of UV Photobiology 2 Stratospheric… (More)