Molluscs of economic importance in Brasil: III. Subulinidae, Leptinaria unilamellata (Orbigny) (Mollusca, Gastropoda, Pulmonata, Stylommatophora) Snail transmitters of schistosomiasis and other mollusks of medical and economic importance at the Simplicio Queda Unica Hydroelectric Plant, Southeast Brazil Monica Ammon Fernandez[1], Elizangela Feitosa da Silva[1], Rafael Alves Esteves[2] and Silvana Carvalho Thiengo[1] [1]. How Important It Is to Produce Seeds for The Even if in the past economic factors have probably been the cause of the failure of some bivalve hatcheries, ( Pdf, E-pub, Full Text, Audio) • Unceasing customer service Ecological observations on the molluscs of significance in the transmission of bilharziasis in Kenya oxygen and other physical and chemical characteristics of the water were recorded and an attempt was made to assess the importance of the changes in such environmental factors on the Mollusk, also spelled mollusc, Importance to humans. Mollusks are of general importance within food chains and as members of ecosystems. Certain species are of direct or indirect commercial and even medical importance to humans. Mollusks and Environmental Concerns. Mollusks are important indicators of the health of ecosystems. They can also cause problems. One recent example is the invasive Asian zebra mussel, which has infested waters of the Great Lakes, with often disastrous results for the economy and the native environment. Economic Valuation of Bivalves in the Aghanashini Estuary, West Coast, Karnataka Index Titles Page no. SUMMARY 1 INTRODUCTION 2 MOLLUSCS 3 LAMELLIBRANCHIA (PELECYPODA OR BIVALVIA) 3 ECONOMIC IMPORTANCE OF BIVALVES 7 MORPHOLOGY OF BIVALVES 10 ECONOMIC VALUATION 14 OBJECTIVE 14 MATERIALS AND METHODS 15 RESULTS 16 CONCLUSION 31 Uses of Shell-Bearing Molluscs - Past, Present & Future. by Avril Bourquin and many contributors This is an important ingredient in the Italian dish called "scungilli marinara" and the Busycon is