Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

A key for the identification of the nauplii of common barnacles of the British Isles, with emphasis on Chthamalus
Ross, P.M.; Burrows, M.T.; Hawkins, S.J.; Southward, A.J.; Ryan, K.P. (2003). A key for the identification of the nauplii of common barnacles of the British Isles, with emphasis on Chthamalus. J. Crust. Biol. 23(2): 328-340. https://dx.doi.org/10.1163/20021975-99990343
In: Journal of Crustacean Biology. Crustacean Society: Washington. ISSN 0278-0372; e-ISSN 1937-240X, more
Peer reviewed article  

Available in  Authors 

Keywords
    Analytical techniques > Microscopy > Electron microscopy
    Developmental stages > Larvae > Invertebrate larvae > Crustacean larvae > Nauplii
    Identification keys
    Chthamalus montagui Southward, 1976 [WoRMS]; Chthamalus stellatus (Poli, 1791) [WoRMS]; Cirripedia [WoRMS]
    ANE, British Isles [Marine Regions]
    Marine/Coastal

Authors  Top 
  • Ross, P.M.
  • Burrows, M.T.
  • Hawkins, S.J., more
  • Southward, A.J., more
  • Ryan, K.P.

Abstract
    Chthamalus stellatus and C. montagui are warm-water barnacles common on rocky shores in southwest England, Ireland, and southern Europe. They are partly sympatric, with overlapping vertical and horizontal distributions. It has been suggested that the differing horizontal distribution of the adults may be related to differences in the distribution of the larval stages. To this end, we have examined plankton samples taken during the summer breeding period at Plymouth, from inshore to 15 miles offshore. The samples also contained large numbers of other cirriped nauplii, notably Elminius modestus, Balanus perforatus, B. crenatus, and Verruca stroemia, from which the chthamalids had to be distinguished. The chthamalids can be separated from the other nauplii by use of characters that include a unilobed or trilobed labrum, the length of posterior processes and the shape and size of the cephalic shield, but the two species of Chthamalus are more difficult to distinguish. Scanning electron microscopy (S.E.M.) has allowed development of a key to the main barnacle nauplii occurring off the British Isles. This key, with accompanying SEM photographs, will enable enumeration of the two chthamalids and help answer the question whether there is a differential distribution of the larvae of these species.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors