Extracting polydorids

[Sean Handley]

> I would be grateful for any suggestions on how to extract polydorids

A method I have used to extract spionids from oysters is the use of 
the vermifuges: 0.5% phenol and/or 0.25% di-dichlorobenzene in 
seawater. The worms are expelled from their host if left overnight in 
these solutions.  Caution is advised working with di-chlorobenzene... 

For further reading on vermifuges and acid dissolution of coral see:

MacKenzie, C.L.; Shearer, L.W. 1959: Chemical control of Polydora
websteri and other annelids inhabiting oyster shells. Proceedings -
National Shellfisheries Association 50: 105-111.

Brock, R.E. and Brock, J.H. 1977: A method for quantitatively 
assessing the infaunal community in coral rock. Limnol.Oceanogr. 
22:948-951, . 

Regards....Sean  
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Sean Handley
sean at environment.cawthron.org.nz
Cawthron
98 Halifax St East
Private Bag 2        Tel 64 03 548 2319
Nelson               Fax 64 03 546 9464 
New Zealand
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