The absence of small males, presence of atretic oocytes and brown bodies in testes of mature males, and both developed ovarian and testicular tissues in the gonads
of five transitional fish provided evidence of protogynous hermaphroditism.
After euthanization, bilobate gonads
were excised, cleaned of connective tissue and weighed.
In the male, gonads
contain abundant, round alveoli, with scant interalveolar space.
of individuals in MS III (developing) and MS IV (ripe) were collected to estimate fecundity.
were removed and weighed, and gonadosomatic index (GSI) was determined.
Preliminary results indicate that the frog population in North Dakota exhibits a well-balanced sex ratio, healthy development of gonads
, no malformations in the physical appearance or the bone structure, and a healthy snout to urostyle length.
Unfortunately for the contestant, gonads
could not be accepted - as it is not listed in the Oxford English Dictionary.
Proximate analyses for protein, carbohydrate and lipid were performed on gonad
and somatic tissues.
Some males appeared to undergo complete sex reversal and had gonads
almost completely filled with immature female egg cells.
Temperature requirements for maturation of gonads
of northern oysters.
This knowledge led Goro Yoshizaki of the Tokyo University of Marine Science and Technology and his colleagues to wonder whether the gonads
of male fish contain cells that might become either eggs or sperm.
Initially, examinations of both male and female fish were conducted, but after preliminary evidence showed that nematodes were not present in the gonads
of male fish, future examinations were restricted to female fish.