The results from that workshop indicated that, with increased experience by the staff, the use of sectioned otoliths from tautog may yield age estimates of higher precision than the use of opercula
With the recent successes of using opercula
in the study of other gastropod fisheries, we surmised that the shape and form of its operculum might provide insight into queen conch age and maturity.
movement, surfacing and gulping of air were observed.
In the three primates, Homo sapins, Macaca rhesus and Ateles geoffroyi the insula was covered by the cerebral opercula
, although in the non-human primates these were thinner [Saleem & Loghothetis 11; Paxinos et al 12].
Laboratory studies could easily be designed to determine normal gut-passage times for humpback and broad whitefish, survival rates of clams and snails during gut passage, size and temperature effects on survival rates, and differential survival rates of snails with opercula
versus those without.
The archaeological assemblage of Babjarrimannos Midden 2 was dominated by chiton shell and turban opercula
Habib and Robichon (1996) found that dyslexic students from an engineering school had symmetrical opercula
and that asymmetry was inversely proportional to performance on a phonological categorization task.
The occurrence of calcareous deposits in rissooidean opercula
is sporadic, even within families and genera.
of barnacles from the two sea turtle species grew relatively less than opercula
of barnacles on the other hosts (Fig.
Behavioral responses which include colouration of the fish skin and opercula
colouration were observed.
It is totally covered by the fronto-parietal and temporal opercula
In this study, we compared the precision of age estimates obtained from sagittal otoliths, vertebrae, scales, and opercula
as structures for the age determination of American shad.