Periostracal Adventitious Hairs on Spat of the Mussel Mytilus Edulis

Morphological and genetic evidence is presented which supports the existence of periostracal adventitious hairs on spat of the mussel Mytilus edulis. This character appears not to have been reported previously for Mytilus, and was thought to be restricted to a closely-related genus, Modiolus. The sp...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom 1995-05, Vol.75 (2), p.363-372
Main Authors: Dixon, D.R., Cava-Sole, A.M., Pascoe, P.L., Holland, P.W.H.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Invertebrates
Marine
Mollusca
Morphology. Histology. Cytology
Mytilus edulis
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Summary:Morphological and genetic evidence is presented which supports the existence of periostracal adventitious hairs on spat of the mussel Mytilus edulis. This character appears not to have been reported previously for Mytilus, and was thought to be restricted to a closely-related genus, Modiolus. The species identity of hairy mussel spat was confirmed by PCR (polymerase chain reaction) amplification of a diagnostic portion of the nuclear ribosomal DNA repeat unit (i.e. the ITS-2 region). Size-frequency analysis of spat, sampled in mid-September 1993, from rock pools and from the byssus of a nearby adult mussel bed, showed that hairy spat (mean shell length 1.87 mm, SE 0.17) were significantly (t=7.74; P
ISSN:0025-3154
1469-7769
DOI:10.1017/S0025315400018233