cuatro.4 Histological and you will morphological malfunction of gonads

a) Isostichopus sp.

An average TL try 193 ± 52 mm (± SD), restriction 380 mm and you will lowest 75 mm. These viewpoints ranged based intercourse (+ = 195 ± forty five mm, > = 202 ± 52 mm and you may as opposed to gonad 179 ± 61 mm). People without a gonad was basically significantly smaller compared studentka pro datovГЎnГ­ to brand new boys (n = 221; K = six.513; p = 0.039).

Length-regularity distribution was unimodal having a top on the set of 180 so you can 215 mm (Fig 2A). The brand new L50 try built from the 175 mm (95% depend on period: 174–176 mm) (Fig 2C). The littlest individual that have gonads was a masculine (110 mm).

A and B distribution regularity regarding size and you will weight Isostichopus sp.; Elizabeth and you can F shipment regularity out-of duration and you may pounds Isostichopus badionotus; C and D size and you may weight at first readiness Isostichopus sp.; Grams and you can H length and you may pounds at first maturity Isostichopus badionotus.

The average BW (± SD) is actually 179 ± 69 grams, limit 558 grams and minimum 18 grams (+ = 187 ± 58 grams, > = 190 ± 71 g and you can rather than gonad 154 ± 77 grams). The individuals rather than gonads have been less hefty than women and you will boys (letter = 221; K = ; p = 0.003).

Regularity shipping of BW was unimodal having a top inside the the variety of 153 to help you 198 g (Fig 2B). The fresh W50 is actually oriented on 155 g (95% confidence period: 154–156 grams) (Fig 2D). The smallest private compiled with gonads is actually a male (39 grams).

b) Isostichopus badionotus.

The average TL was 324 ± 70 mm (± SD), maximum 480 mm and minimum 110 mm (+ = 329 ± 55mm, > = 341 ± 64 mm and without gonad 240 ± 78 mm). The individuals without gonad were significantly smaller (n = 114; F_2,111 = ; p = 0.001).

The exact distance-frequency delivery try unimodal, having a maximum in the variety of 355 to 390 mm (Fig 2E). New L50 was based in the 220 mm (95% rely on period: 217–221 mm) (Fig 2G). The smallest individual compiled which have gonads try a masculine (210 mm).

The average BW was 628 ± 179 g, maximum 999 g and minimum 72 g (+ = 654 ± 152 g, > = 669 ± 145 g and without gonad 383 ± 200 g). The individuals without a gonad were significantly less heavy (n = 114; F_2,111 = ; p = 0.001).

Volume distribution out of BW try unimodal that have an optimum about range of 607 so you can 642 g (Fig 2F). The brand new W50 is oriented at the 348 grams (95% trust period: 344–350 grams) (Fig 2H). The smallest personal compiled which have gonads is actually a lady (363 g).

Both in ocean cucumbers the latest gonad is composed of two tufts from tubules with a great racemose looks found at the fresh anterior avoid of one’s coelom, and therefore stumbled on undertake all perivisceral hole at the stage off maturity (III). The colour of your gonad off one another ocean cucumbers varied from beige–whitish so you can ocher, as opposed to an apparent relationship ranging from colour and you may sex. Only one matter of hermaphroditism try observed in Isostichopus sp., in which step 3% of your own gonad consisted of cum and 97% oocytes.

Histology exhibited cuatro of your own 5 amounts regarding gonadal invention proposed from the Ramofafia et al. . Inside analysis the latest indeterminate stage (I), where gametes don’t but really enjoys laid out mobile formations you to definitely allow it to be the differentiation, was not observed. A conclusion of one’s histological properties out of gonad advancement is revealed regarding S1 Appendix.

4.5 Gonad Directory (GI)

Both in morphotypes the lowest GI philosophy was in fact registered regarding the first 1 / 2 of the season, towards lower viewpoints in for Isostichopus sp. (0.cuatro ± 0.2%) and We. badionotus (0.8 ± 0.6%). Regarding May onwards, a steady boost is actually noticed, getting together with their restrict really worth within the August that have 4.eight ± 0.9% and you can eight.six ± 0.9%, correspondingly (Fig 3A and you can 3B), coinciding towards boost in drinking water heat together with onset of this new rainy season (Fig 3C and you may three-dimensional). Between Sep and December the newest GI diminished easily, showing enormous spawning, tape inside a GI of 1.5 ± 0.5% for Isostichopus sp. and step 1.3 ± 0.4% for We. badionotus.