Fig 1.
Histological section of a female gonad.
(A, C) Ovary (B, D) Development of oocytes. g gastrodermis, e endodermis, pv pre-vitellogenic oocyte embedded within gastrodermis, vo vitellogenic oocyte, lvt late-vitellogenic oocyte mo mature oocyte, arrow residual linkage with trophocytes (paraovular body), nu nucleolus, gv germinal vesicle. Scale bars: A, C = 100 μm; B, D = 50 μm.
Fig 2.
Histological section of a male gonad.
(A) Structure of testis (B) Sperm follicle. f follicle, sc spermatocytes, std spermatids, sz spermatozoa, g gastrodermis. Sperm follicles ranged 93–115 μm during the sampling period. Scale bar = 50 μm.
Fig 3.
Representation of the temporal pattern of reproduction.
(A) Jellyfish diameter (in cm) during the sampling period from May to April (B) Oocytes number per section area (mm2) during the sampling period showing two seasonal peaks (late spring and autumn) and seasonal temperatures (C) Oocytes diameter during the sampling period and seasonal temperatures (D) Percentage of each oocyte maturation stage during the whole sampling period. There are two columns for each sampling date (E) Oocytes number in relation to the jellyfish diameter (F) Oocytes diameter in relation to jellyfish diameter. Graphs A, B, C, E, F: The black line represents the mean value while grey areas represent the confidence interval. Temperature is plotted in red.
Table 1.
To the left of the tilde (~) symbol the response variable, and to the right the independent variable. "s" = natural cubic spline smoother; p = autocorrelation term (AR); q = moving average term (MA); med (medusa ID) and gon (gonad ID nested in med) used as random intercept. Jellyfish_D = jellyfish diameter.