In this study, the term "ring" references the dark concentric band observed between light concentric bands in statoliths
which represents the period of slow growth associated with temperature minima (Fig.
of cenozoic teuthoid cephalopods from north America.
The age-based calculation of growth rates that is based on measurements of statoliths
is a popular method and has been used in making growth estimations for oceanic squid.
Clarke and Fitch (1979:492) in a study of fossil teuthoid (cephalopod) statoliths
of North America briefly mentioned some of the associated teleost fauna based on otoliths.
The beads somewhat resembled the aggregated lithocytes of living statoliths
, but were much smaller relative to statolith
The age of cephalopods can be estimated by counting accretions in hard structures such as statoliths
, beaks, and-in many decapod squids-gladii.
Squid use calcium carbonate crystals to make balance organs, called statoliths
, that provide the ability to orient themselves when swimming.
Friday, June 1, 2007 Location: GILMAN Session: Contributed Papers 57 E 9:00 IMMIGRATION IN THE OCEAN: STATOLITHS
AS LARVAL PASSPORTS.
Age and growth of market squid, Loligo opalescens Berry, from statoliths
The major (a), minor (b), and depth (c) axes of statoliths
were measured from tracings to the nearest millimeter, and halved to obtain radii (semi-axes) for volume calculations.
have been used widely for this purpose in squid (e.
of each specimen were cleaned from tissue excess with a soapy solution, posterioly, they were saved in ependorff tubes with etanol 70%.