a) Isostichopus sp.
The typical TL are 193 ± 52 mm (± SD), limitation 380 mm and you will minimal 75 mm. These types of viewpoints ranged depending on intercourse (+ = 195 ± 45 mm, > = 202 ± 52 mm and you can rather than gonad 179 ± 61 mm). Individuals in the place of an effective gonad was basically rather smaller compared to the new males (n = 221; K = 6.513; p = 0.039).
Length-frequency shipment is actually unimodal which have an optimum regarding the variety of 180 to 215 mm (Fig 2A). The L50 try established within 175 mm (95% trust interval: 174–176 mm) (Fig 2C). The littlest personal with gonads is actually a masculine (110 mm).
An effective and B delivery frequency out-of duration and you will lbs Isostichopus sp.; Age and you can F shipping volume out of size and you may lbs Isostichopus badionotus; C and you may D duration and you will lbs in the beginning readiness Isostichopus sp.; G and H duration and you may lbs to start with maturity Isostichopus badionotus.
The common BW (± SD) is 179 ± 69 g, restriction 558 g and you may minimal 18 g (+ = 187 ± 58 grams, > = 190 ± 71 g and in place of gonad 154 ± 77 grams). People instead of gonads was basically reduced big than girls and you sexiest Oviedo girls may guys (letter = 221; K = ; p = 0.003).
Frequency distribution of the BW is unimodal which have a peak for the the variety of 153 in order to 198 g (Fig 2B). The latest W50 is founded at the 155 g (95% count on interval: 154–156 g) (Fig 2D). The littlest private accumulated with gonads is actually 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; Fdos,111 = ; p = 0.001).
The length-volume distribution was unimodal, which have an optimum from the listing of 355 so you’re able to 390 mm (Fig 2E). The newest L50 are established at the 220 mm (95% trust interval: 217–221 mm) (Fig 2G). The littlest personal collected that 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; F2,111 = ; p = 0.001).
Regularity distribution of BW try unimodal having a top on range of 607 so you can 642 g (Fig 2F). The fresh W50 is actually situated at 348 grams (95% depend on interval: 344–350 grams) (Fig 2H). The littlest private accumulated having gonads is a lady (363 grams).
Both in water cucumbers the newest gonad try comprising a couple tufts away from tubules having an effective racemose physical appearance found at the fresh new prior prevent of coelom, and this came to reside the perivisceral cavity within phase away from maturity (III). The colour of your gonad away from one another ocean cucumbers ranged off beige–whitish to help you ocher, in place of an obvious relationship between colour and you can intercourse. One matter-of hermaphroditism is actually found in Isostichopus sp., where 3% of one’s gonad consisted of jizz and you can 97% oocytes.
Histology exhibited cuatro of your own 5 amounts out-of gonadal innovation suggested from the Ramofafia et al. . In this investigation new indeterminate stage (I), where in actuality the gametes don’t yet enjoys laid out mobile structures you to definitely make it the differentiation, wasn’t noticed. A reason of the histological properties from gonad innovation are revealed regarding the S1 Appendix.
4.5 Gonad List (GI)
In both morphotypes a decreased GI philosophy have been submitted on the very first half of the entire year, towards low philosophy in for Isostichopus sp. (0.4 ± 0.2%) as well as for I. badionotus (0.8 ± 0.6%). Out of Can get beforehand, a steady boost is seen, reaching their restrict really worth from inside the August that have cuatro.seven ± 0.9% and you will eight.6 ± 0.9%, correspondingly (Fig 3A and 3B), coinciding to your escalation in h2o temperature therefore the start of brand new wet year (Fig 3C and three dimensional). Anywhere between Sep and you may December this new GI reduced rapidly, showing huge spawning, recording inside the a beneficial GI of just one.5 ± 0.5% having Isostichopus sp. and you may step one.3 ± 0.4% to have I. badionotus.