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Control of oyster drills, Eupleura caudata and Urosalpinx cinerea with the chemical polystream
MacKenzie Jr., C.L. (1970). Control of oyster drills, Eupleura caudata and Urosalpinx cinerea with the chemical polystream. Fish. Bull. 68(2): 285-297
In: Fishery Bulletin. US Government Printing Office: Washington, D.C.. ISSN 0090-0656, more
Peer reviewed article  

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Keywords
    Eupleura caudata (Say, 1822) [WoRMS]; Urosalpinx cinerea (Say, 1822) [WoRMS]; Marine

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  • MacKenzie Jr., C.L.

Abstract
    5 experimental and 10 commercial treatments of oyster beds in 4 States were made with Polystream. On a typical bed, where water currents were less than 2.7 km/hr, Polystream killed approximately 85 per cent of the thick-lipped drill, E. caudata, and 66 per cent of the Atlantic oyster drill, U. cinerea. A significantly higher percentage of oyster drills was killed by treatments made in late April and early May rather than later in the summer. Oyster drills that survived did not feed for several months. The number of drills remained low for at least 2 yr. Polystream treatments killed only small percentages of fish, small clams, Mercenaria mercenaria, crabs, and other invertebrates. After a treatment, oysters, Crassostrea virginica, clams, and other organisms had small residues of Polystream in their tissues but gradually lost these residues. Growth of oysters was normal on treated beds.

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