Vitellogenin or vitellin can be used as a reliable quantitative index of gender and degree of gonadic
maturity in females.
cancer) and gonadic
risks became the basis of radioprotection.
Every 10 days, 20 oysters from each treatment were harvested randomly and were measured and weighed, and gonadic
development stage was determined by examining the condition index and histological features.
Ninety percent of the oysters collected from the wild presented undefined gonadic
development stage; 10% presented an early developmental stage.
According to the pattern, energy can be allocated either to gonadic
or somatic growth, which involves reserves being stored.
According to these same authors, this difference was a result of the energy meant for reproduction, which was used instead for the growth of the shell, because TBT affects gonadic
The disagreement between in situ hybridization and RT-PCR analysis may be attributed to the increase in the total amount of male germ cells, as well as in the gonadic
volume during the development of P.
Difference in somatic and gonadic
growth of sea urchins (Strongylocentrotus droebachiensis) fed kelp (Laminaria lingicruris) or the invasive alga Codium fragile ssp.
On collection (t0), sea urchins were found to be in different phases of the gonadic
1), and the gonadic
index (GI) was obtained from the sum of the RG and DG volume fractions (Eq.
The stage of gonadic
development classification, as shown in Table 1, was developed from a study of the development of the indices of the dry weight condition of the oocyte cohorts.
Simple correlations (Pearson coefficient) of gonadic
stages in Panopea globosa at the Upper Gulf of California and environmental parameters from satellite images.