Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-23T21:30:36.128Z Has data issue: false hasContentIssue false
  • English
  • Français

Notes on the Didemnidae (Ascidiacea). IV. The increase of Trididemnum niveum (Giard) In the Plymouth area, and the structure of its larva

Published online by Cambridge University Press:  11 May 2009

D. B. Carlisle
D. B. Carlisle
Affiliation:
The Plymouth Laboratory
Get access Rights & Permissions [Opens in a new window]

Extract

Since I first found Trididemnum niveum (Giard) at Salcombe in the autumn of 1951 (Carlisle, 1953) this species has spread and increased greatly in the Plymouth area. I have found it in abundance at Salcombe (Castle rocks and the Salstone), Wembury, and especially at Looe around the Island. The favourite habitat at all these places is the same as that at Roscoff, on the fronds of Cystoseira. It occurs rather less frequently on the holdfasts of Laminaria ochroleuca and occasionally on other species of Laminaria, but very little on any other substrate. It is not truly intertidal; the majority of specimens are to be found just below low-water mark of spring tides, and very rarely are any seen above low-water mark of even the lowest tides of the year.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 33 , Issue 2 , June 1954 , pp. 325 - 327
Copyright
Copyright © Marine Biological Association of the United Kingdom 1954

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Berrill, N. J., 1947. The structure, tadpole and budding of the ascidian Pycnoclavella aurilucens Garstang. J. Mar. biol. Ass. U.K., Vol. 27, pp. 245–51.Google Scholar
Berrill, N. J., 1950. The Tunicata. Ray Soc. Publ., no. 133. London.Google Scholar
Carlisle, D. B. 1953. Notes on the British species of Trididemnum (Didemnidae, Ascidiacea), with a report of the occurrence of T. niveum (Giard) in the Plymouth area. J. Mar. biol. Ass. U.K., Vol. 31, pp. 439–45.Google Scholar
Harantj H. & Vernières, P., 1923. Tuniciers, Fasc. I: Ascidies. Faune de France, T. 27. 99 pp. Paris.Google Scholar
Parke, M.J 1948. Laminaria ochroleuca De La Pylaie growing on the coast of Britain. Nature, Lond., Vol. 162, pp. 295–6.Google Scholar
Salensky, W. 1895. Beiträge zur Entwicklungsgeschichte der Synascidien. 2. Über die Entwicklung von Didemnum niveum. Mitt. zool. Sta. Neapel, Vol. 11, pp. 488–552.Google Scholar