The 5 porbeagles in a resting stage
were caught in July on Cultivator Shoals, located on Georges Bank (n=1); in October on the Grand Banks of Newfoundland (n=l); and in April on the Scotian Shelf east of La Have Bank (n=3).
In July of 2008 and 2009, the lowest average temperatures were recorded, and almost all of the animals were in the resting stage
. In August, less than half the oysters collected were found to be at the early growth stage.
japonicus completely disappear after spawning, and a condition corresponding to the resting stage
of Tanaka (1958) was not found (Choe, 1963).
However, an anomalous high peak of chlorophyll concentration occurred in April when, unlike the same month from 2014, could have caused the reduction of the resting stage
and oogenesis and spermatogenesis occurred as indicated by the spawning stage.
2) the revised interpretation, in which adult females classified as in the resting stage
were considered to be functionally immature.
Nevertheless, gametogenesis occurred all year round, except for a short resting stage
after the main spawning event in July-August and for a short period in winter when food is scarce.
Histological analysis of 11,494 adult females, sampled during the peak spawning period (January) of the Patagonian stock between 2005 and 2014, confirmed that of the 3 categories of skipped spawning (retaining, reabsorbing, and resting), only the resting stage
was observed in Argentine hake.
During the resting stage
, testes had almost disappeared and were not recognizable.
Oysters from the Carmen, Machona, and Mecoacan lagoons showed a reproductive tactic in which the resting stage
In ovaries of this state, no oocytes for the next batch had yet progressed to OM and the only oocytes present were in a vitellogenic developed phase equivalent to the resting stage
described by Murua et al.
Oysters in the resting stage
were found at the beginning of the experiment in all treatments; in the subsequent harvests, a reduction in the number of animals in the resting stage
was observed (Fig.
Because the survey is conducted after the completion of the spawning season for longspine thornyheads (January-April), the samples are collected exclusively during the reproductive resting stage
. Sex misidentification was relatively constant for longspine thornyheads throughout the sample period and there were no significant differences among months.