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 (1): add | show Print this page

one publication added to basket [252710]
Notes on growth-patterns and shell-utilization of the hermit crab Pagurus bernhardus (L.)
Markham, J.C. (1968). Notes on growth-patterns and shell-utilization of the hermit crab Pagurus bernhardus (L.). Ophelia 5(2): 189-205. http://dx.doi.org/10.1080/00785326.6812.10407609
In: Ophelia: International Journal of Marine Biology. Ophelia Publications: Helsingør. ISSN 0078-5326, more
Peer reviewed article  

Available in  Author 

Keywords
    Pagurus bernhardus (Linnaeus, 1758) [WoRMS]
    Marine/Coastal

Author  Top 

Abstract
    Studies made of specimens of Pagurus bernhardus kept for six months in shells of different sizes showed that they grew appreciably faster in shells which were large relative to their body size than they did in shells which were too small. This difference was especially marked in the increase per molt but less so in the number of days per molt. A new standard of measurement, the length of the front (hard) portion of the carapace, is proposed for these crabs. The reasons for this choice and a conversion factor between the new standard and that frequently used, the whole carapace, are presented. A formula relating size to instar number is derived for this species, but the molt frequency was too variable to permit a determination of an age-size relationship. Finally, observations were made on the weight-to-volume ratios of some of the gastropod shells inhabited by this species in the Øresund and on the ratios of the weights and volumes of the shells to the crabs which bear them.

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