a) Isostichopus sp.
An average TL is 193 https://kissbrides.com/thaiflirting-review/ ± 52 mm (± SD), restrict 380 mm and lowest 75 mm. These opinions varied dependent on sex (+ = 195 ± forty five mm, > = 202 ± 52 mm and you will in the place of gonad 179 ± 61 mm). People rather than a beneficial gonad was in fact rather smaller compared to the newest men (letter = 221; K = six.513; p = 0.039).
Length-frequency delivery is unimodal which have a maximum throughout the selection of 180 so you’re able to 215 mm (Fig 2A). This new L50 are oriented on 175 mm (95% depend on interval: 174–176 mm) (Fig 2C). The tiniest individual that have gonads was a masculine (110 mm).
Good and you can B shipments regularity from duration and you can pounds Isostichopus sp.; Elizabeth and you will F shipment frequency away from duration and you can weight Isostichopus badionotus; C and you may D size and you can pounds to start with readiness Isostichopus sp.; G and you may H size and you can lbs initially readiness Isostichopus badionotus.
The typical BW (± SD) was 179 ± 69 grams, restrict 558 grams and lowest 18 g (+ = 187 ± 58 grams, > = 190 ± 71 grams and you can versus gonad 154 ± 77 grams). The folks versus gonads was indeed reduced big than simply lady and you may boys (letter = 221; K = ; p = 0.003).
Frequency shipment of your own BW are unimodal having a highest in the range of 153 to help you 198 grams (Fig 2B). The fresh W50 is centered at the 155 grams (95% rely on interval: 154–156 g) (Fig 2D). The smallest private built-up having gonads try a masculine (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; F2,111 = ; p = 0.001).
The length-frequency shipments is unimodal, with a peak from the set of 355 to help you 390 mm (Fig 2E). New L50 is dependent at the 220 mm (95% count on interval: 217–221 mm) (Fig 2G). The littlest individual built-up which have gonads is actually 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; F2,111 = ; p = 0.001).
Volume shipment from BW is actually unimodal with a peak throughout the listing of 607 so you can 642 grams (Fig 2F). The newest W50 is actually situated during the 348 g (95% believe interval: 344–350 g) (Fig 2H). The littlest personal obtained having gonads try a woman (363 g).
In both water cucumbers brand new gonad try composed of one or two tufts away from tubules that have good racemose physical appearance located at brand new anterior avoid of one’s coelom, and this found invade all perivisceral hole at phase of readiness (III). The color of gonad out of one another ocean cucumbers ranged out of beige–whitish to ocher, rather than an apparent relationship anywhere between color and gender. Only 1 matter-of hermaphroditism is actually seen in Isostichopus sp., where step 3% of the gonad contained jizz and you will 97% oocytes.
Histology demonstrated cuatro of one’s 5 amount from gonadal development suggested because of the Ramofafia et al. . Within this studies this new indeterminate stage (I), where in actuality the gametes don’t but really keeps laid out mobile formations you to allow their distinction, was not observed. A reason of your histological functions regarding gonad advancement is revealed about S1 Appendix.
4.5 Gonad Index (GI)
In morphotypes a minimal GI opinions have been submitted throughout the earliest half the season, for the low thinking set for Isostichopus sp. (0.cuatro ± 0.2%) as well as for We. badionotus (0.8 ± 0.6%). Off Will get ahead, a slow improve is actually noticed, getting its maximum worth during the August with 4.seven ± 0.9% and seven.six ± 0.9%, respectively (Fig 3A and you may 3B), coinciding for the boost in water temperatures together with onset of the brand new wet seasons (Fig 3C and 3d). Ranging from September and you can December the fresh GI decreased easily, exhibiting enormous spawning, tape in the a GI of 1.5 ± 0.5% to possess Isostichopus sp. and you may step 1.3 ± 0.4% getting We. badionotus.