Reproduction in Archidoris pseudoargus
June 13, 2001
From: Bernard Picton
Hi Bill,
Here are some mating and egg-mass photos of Archidoris pseudoargus to accompany my other message.
The mating photo (upper right) shows how variable the colour pattern is in this species. On the west coast of Ireland I've often observed smaller animals with small
spawn coils (lower left) and I wonder if this species can reproduce for a long time at different body sizes, or even live for two years, reproducing twice (if reproduction is seasonal).
UPPER RIGHT: Copulating pair - Ballintoy Harbour, Co Antrim, N. Ireland, Feb 1976
LOWER LEFT: Small form and spawn coils - Rathlin O' Birne Is., Co Donegal, Ireland. Aug 1986.
LOWER RIGHT: Typical spawn coil - Ballintoy Harbour, Co Antrim, N.Ireland, Feb 1976.
Bernard
bernard.picton.um@nics.gov.uk
Picton, B., 2001 (Jun 13) Reproduction in Archidoris pseudoargus. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4551
Thanks Bernard,
Are the yellow and white typical spawn coils in your Ballintoy photo evidence of a range of egg colour in the population or does the egg change colour during development?
Best wishes,
Bill Rudman
Related messages
-
Archidoris pseudoargus - mass mortality in south Wales
From: Judith Oakley, August 13, 2008 -
Re: Unknown Dorid from Italy
From: Sylvie Grall, July 2, 2007 -
Archidoris tuberculata? from Italy
From: Tancredi D'Onofrio, April 21, 2006 -
Two nudibranchs from Reykjavik, Iceland
From: Freyja Imsland, September 30, 2005 -
Identifying Archidoris pseudoargus
From: Bernard Picton , June 13, 2001 -
Re: Dorid from France
From: Angel Valdes, August 11, 2000 -
Re: Dorid from France
From: Peter H. van Bragt, August 10, 2000