Posted on behalf of Richard Lord <fishinfo from guernsey.net>
G.
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From: Richard Lord <fishinfo from guernsey.net>
Date: 1 May 2009 14:31:50 BST
To: annelida from magpie.bio.indiana.edu
Subject: Marphysa sanguinea life history
Over the last eight years I have witnessed heavy harvesting pressure
of Marphysa sanguinea in local bays for use as fishing bait.
I would like to find out if the harvesting of Marphysa sanguinea in
local bays is sustainable.
I would appreciate receiving general information on the life history
and ecology of this species.
Some of the questions I am seeking answers for are:
What is the longevity of Marphysa sanguinea?
How old it is when it first breeds and how many years does it breed
for?
How long do the larvae stay in the water column before settling to
the sea bed and how widely dispersed can they be before settling to
the bottom.
I wish to know whether transplanting of this species from nearby
areas has been tried to repopulate a shore?
I have a photograph of the species here:
http://www.smugmug.com/gallery/2074700_Fqi4W/1/107636133_pJKtM#107636133_pJKtM
Large numbers of individuals are dug up in our local bays:
http://www.sealordphotography.net/gallery/3514797_L9f6K#113230983_fMYSP
Our specimens grow to a length of about 60 cm:
http://www.sealordphotography.net/gallery/3514797_L9f6K#113230350_txHH2
I have searched the Internet and found a few abstracts but I do not
have a local library available to provide me with any journals.
Thank you for the help you can provide.
Best wishes,
Richard
Richard Lord
Guernsey
Channel Islands
fishinfo from guernsey.net
Tel: +44 (0)1481 700688
Fax: +44 (0)1481 700686
http://www.sealordphotography.net
