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Polydora problems

Frank Dutra fdutra at Nantucket.Net
Wed Dec 6 22:48:01 EST 1995


Hello all,

Any information on Polydora sps. (websteri- <1mm?) would be greatly
appreciated. Cultivated scallops (argopecten irradians) have been infected
resulting in some minor mortality and depressed growth.The larger problem
is a lowering of market appeal for infected animals due to unsightly
conchillion deposits. Infection appears to be of a temporal nature,
presumably during the larval stage. Scallops deployed to the field during
August are free of infection, while those deployed earlier are roughly 50
%.I would like to avoid or minimize this problem next year if possible, and
would gladly collaborate (implementation and data collection) with any
experimental procedures suggested.

Another type of infection being reported by processors is a spore like body
(1mm) found in the adductor muscle of commercially harvested scallops.
Infected animals appear in distinct locals independent of substrate or flow
regimes. I vaguely remember some work being done at U-Conn a few years back
as to the identity, vectors, and intermediate hosts of this organism.

Any info or thoughts on the above will be greatly appreciated,..living on
an island has it's drawbacks when trying to access the literature. Thanks,
and keep up the good work!



Frank Dutra
Nantucket Harborlife    (formerly Nantucket Research and Education Foundation)
0 Easton Street
Nantucket, MA  02554

Lab:    (508) 325-7075
Office: (508) 228-5569
FAX     (508) 228-2649                  fdutra at nantucket.net

Frank Dutra
Nantucket Harborlife    (formerly Nantucket Research and Education Foundation)
0 Easton Street
Nantucket, MA  02554

Lab:    (508) 325-7075
Office: (508) 228-5569
FAX     (508) 228-2649                  fdutra at nantucket.net





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