Development of ovarian maturations in orange mud crab, <i>Scylla olivacea</i> (Herbst, 1796) through induction of eyestalk ablation and methyl farnesoate

Muhd-Farouk, Harman; Nurul, Huda Abdullah; Abol‐Munafi, Ambok Bolong; Mardhiyyah, Mohd Pauzi; Hasyima-Ismail, Nurul; Manan, Hidayah; Fatihah, Siti Nor; Amin-Safwan, Adnan; Ikhwanuddin, Mhd

doi:10.1080/25765299.2019.1588197

Cited by 11 publications

(8 citation statements)

References 36 publications

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“…Every 15 day throughout the 60-day study period (Day 15, 30, 45 and 60), five crabs were randomly selected for dissection and evaluation of ovarian maturation stages through coloration, gonadosomatic index, and ovaries were fixed in Davidson's solution for further histological assessment to determine the oocyte structures and diameter sizes [1], [3], [4].…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The ovarian maturation stages were distinguished by the coloration of the ovary referred to the previous studies; where translucent to creamy white (Stage 1), yellowish (Stage 2), pale to dark orange (Stage 3), and dark orange to reddish orange (Stage 4) [4], [5], [6], [7].…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…As for the gonadosomatic index, GSI, the calculation was as follows [2], [4]:Gonadosomaticindex=OvaryWeight false(gfalse)BodyWeight false(gfalse)x100…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The high nutritional value and market demands for mature and gravid female mud crabs [1], [2], [3], [4], [5], [6], [7] has triggered the present study on ovarian maturation of mud crabs.…”

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confidence: 99%

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Dataset on reproductive status of ovary mud crab at different salinity levels

et al. 2019

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This article investigated how crabs responded to different culture salinities through ovarian maturation stages using combination of external morphology (ovarian coloration and gonadosomatic index), and histological assessment (oocyte structures and diameter sizes). A total of sixty immature crabs were sampled from coastal water of Setiu Wetlands, Kuala Nerus, Terengganu, Peninsular Malaysia, and were introduced to limb autotomy technique in order to induce molt. Crabs were reared until successfully molted, and leaves prior to hardened shell, before proceed with salinities acclimatization prior to salinity treatments (10, 20 and 30 ppt). Five crabs were randomly selected every 15 days throughout 60-day of culture (Day 15, 30, 45 and 60) for the assessment. The different between each ovarian maturation stages was recorded based on the color appearances, and Kruskal-Wallis analysis were done between gonadosomatic index and oocyte diameter sizes with different salinity treatments. Part of the data is associated with the recent articles [1], [2] and provided here as raw data of Supplementary materials.

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…As for the gonadosomatic index, GSI, the calculation was as follows [2], [4]:Gonadosomaticindex=OvaryWeight false(gfalse)BodyWeight false(gfalse)x100…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The high nutritional value and market demands for mature and gravid female mud crabs [1], [2], [3], [4], [5], [6], [7] has triggered the present study on ovarian maturation of mud crabs.…”

mentioning

confidence: 99%

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Dataset on reproductive status of ovary mud crab at different salinity levels

et al. 2019

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“…In addition to the important roles played in the regulation of moulting, larval development and morphogenesis (Abdu et al, 1998;Reddy et al, 2004), MF, the crustacean equivalent of the juvenile hormone III of insects, functioned as a gonadotropin. The gonadotropic effect of MF and farnesoic acid (precursor to MF) has been reported in a number of crustaceans (Rodriguez et al, 2002;Mak et al, 2005;Tiu et al, 2006;Balasubramanian et al, 2010;Reddy and Reddy, 2015;Hemalatha et al, 2016;Sudha Devi and Aswani, 2018;Muhd-Farouk et al, 2019). In vitro studies by Otsu (1963) reported that MF promoted the development of oocyte and Vg messenger in the hepatopancreas and ovary.…”

Section: Introductionmentioning

confidence: 97%

Effect of Exogenously Administered Methyl Farnesoate and 20-OH Ecdysone on Polypeptide Profile of Vitellogenin and Vitellin in the Freshwater Crab Travancoriana schirnerae

Ayanath¹,

Raghavan²

2020

SAJLS

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This study evaluated the effects of exogenously administered methyl farnesoate (MF) and 20-OH ecdysone (20E) on polypeptide profile of circulating vitellogenin (Vg) and ovarian vitellin (Vn) in the edible freshwater crab Travancoriana schirnerae by sodium dodecyl sulphate-polyacrylamide gel electrophoresis. The results indicated that the polypeptide profiles of yolk proteins in the hemolymph and ovary of control and experimental females varied with the stage of development of the ovary. Our observations also revealed that both MF and 20E administration was able to induce the production of Vg and Vn during the avitellogenic and previtellogenic phases manifested by the presence of Vg and Vn polypeptide subunits in the electropherograms of experimentals over the controls. Moreover, the electropherograms of MF and 20E crabs during the vitellogenic phase displayed more number of Vg and Vn subunits with increased staining intensity and thickness compared to the control crabs. It was concluded that though both MF and 20E were able to induce or enhance the production of Vg and Vn during the avitellogenic, previtellogenic and vitellogenic phases, the effects were far more pronounced in MF injected females than the 20E injected crabs.

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Population dynamics of mud crab, Scylla olivacea (Herbst, 1796) from the Sundarbans of Bangladesh

Sakib

Ahmmed

Washim

et al. 2022

Aquaculture Fish & Fisheries

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The Sundarbans mangrove regions are the home of the mud crab (Scylla olivacea) business, as forest areas are potential places for random crab harvesting, trading, and exporting overseas seafood markets. Since the mud crab was being captured on a large‐scale in the wild for various purposes, estimation of population parameters were immediately done in terms of body weight and length‐frequency data collected from different locations in the forest of southwestern Bangladesh to understand the status of the stock. Recruitment pattern, growth parameters, mortality rates, and exploitation levels (E) were estimated to understand the population dynamics of S. olivacea. Asymptotic carapace widths (CW∝) were 14.70 and 14.18 cm, and growth co‐efficients (K) were 0.47 and 0.50 year–1 for male and female S. olivacea, respectively. The fishing mortalities were 2.32 and 1.13 year–1 and natural mortalities were 1.39 and 1.46 year–1 for males and females, respectively. Year‐round recruitment of this species takes place in the wild with a peak between June and November. The E for S. olivacea was found to be 0.63 for the male and 0.44 for the female. In summery, the stock of S. olivacea is found to be overexploited in the Sundarbans of Bangladesh. Therefore, mud crab resources should be taken into consideration under suitable fisheries management policies to conserve this national treasure in this delta. It is supposed that the findings will draw the attention of the scientists in the fields of aquatic biology, ecology, and management of the Sundarbans in restoring the mud crab population.

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Development of ovarian maturations in orange mud crab, Scylla olivacea (Herbst, 1796) through induction of eyestalk ablation and methyl farnesoate

Cited by 11 publications

References 36 publications

Dataset on reproductive status of ovary mud crab at different salinity levels

Dataset on reproductive status of ovary mud crab at different salinity levels

Effect of Exogenously Administered Methyl Farnesoate and 20-OH Ecdysone on Polypeptide Profile of Vitellogenin and Vitellin in the Freshwater Crab Travancoriana schirnerae

Population dynamics of mud crab, Scylla olivacea (Herbst, 1796) from the Sundarbans of Bangladesh

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