Identification of Indian Mangrove Mud Crab Genus<i>Scylla</i>spp. (Brachyura: Portunidae) using Rapd and Pcr-Rflp Markers

Mandal, Anup; Varkey, Mathews; Mani, Anjali Kottayil; Sobhanan, Sobha Pindaniyil; Thampisamraj, Y C

doi:10.2983/035.033.0219

Cited by 5 publications

(5 citation statements)

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“…serrata was previously thought to be the most common species harvested across Southeast Asia, but more studies have revealed that S . olivacea is indeed the most common species [ 12 , 15 , 29 ]. Likewise, S. olivacea is the most common species found in the markets in Southeast Asia [ 2 ] and the most important crab for commercial culture in the Indo-West Pacific region leading to high prices in both local and international markets [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

“…serrata have been found in sympatry, e.g. in India [ 15 , 22 , 31 ], Thailand [ 13 ], and Bangladesh [ 12 ]. Our results indicate that S .…”

Section: Discussionmentioning

confidence: 99%

“…paramamosian (Estampador 1949) [ 5 , 9 ]. Local evaluations across Southeast Asia were also conducted following Keenan et al (1998) taxonomic review to reveal the actual species occurring locally in Vietnam [ 10 ], China [ 11 ], Bangladesh [ 12 ], Thailand [ 13 ], Japan [ 14 ], and India [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Genetic characterization of the artisanal mud crab fishery in Myanmar

Segura-García

Tun²,

Box

2018

PLoS ONE

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Fish are important for food supply, especially in developing countries. In Southeast Asia, including Myanmar, the mud crab fishery is an important livelihood that represents a valuable source of income and food to coastal communities. However, the increasing demand for mud crab in domestic and international markets and poor management has generated concern about the status of this fishery across Southeast Asia. In this region, at least four species of mud crab in the genus Scylla are recognised but their correct identification and occurrence remain to be fully explained. Relying on accurate taxonomic identification of mud crab species represents the cornerstone of the successful implementation of management plans as life history biology and relative exploitation rates may vary by species due to gear susceptibility. Toward this aim, tissue samples from mud crabs were collected from four fishing communities of the Mergui archipelago, in the Tanintharyi region of southern Myanmar. All crab samples were DNA barcoded for species identification through sequencing. This study is the first genetic characterization of the mud crab fishery in Myanmar and revealed that Scylla olivacea was the only species found in the sampled fisheries of the Tanintharyi region. The populations studied across the Mergui archipelago did not show evidence of genetic structure, but gene flow appeared to be limited among conspecifics from neighbouring countries.

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Section: Discussionmentioning

confidence: 99%

“…serrata have been found in sympatry, e.g. in India [ 15 , 22 , 31 ], Thailand [ 13 ], and Bangladesh [ 12 ]. Our results indicate that S .…”

Section: Discussionmentioning

confidence: 99%

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Genetic characterization of the artisanal mud crab fishery in Myanmar

Segura-García

Tun²,

Box

2018

PLoS ONE

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“…Moreover, these authors identified all four species using RFLP by double digestion with DraI and HindIII. In addition, Shaji et al (2006) and Mandal et al (2014) used the RFLP pattern to differentiated between the two crab species of the genus Scylla (S. serrata and S. olivacea), and proved that there were a great genetic distance between them. PCR-RFLP was also utilized to distinguish between four species of the genus Maja on European coast (Sotelo et al, and2009 Guero et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…The identification of four species of genus Maja on the European coast was investigated using RFLP analysis (Guero, et al 2011). 16 potential species of the Indian Mangrove Mub crab of genus Scylla were also studied using the same technique (Mandal, et al, 2014). Devi et al (2017) applied the same of technique on Scylla crab from south Indian water and found two species of Scylla.…”

Section: Introductionmentioning

confidence: 99%

Restriction Fragment Length Polymorphism (RFLP) and Morphometric Studies of Two Morphologically Confused Crabs from Abu Quir, Alexandria, Egypt.

Ali

2018

Egypt. J. of Aquatic Biolo. and Fish.

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Two types of morphologically confused crabs were collected from Abu Quir, Alexandria, Egypt, Callinectes spidus and Callinectes ornatus. The carapace of these crabs was first removed, and the abdominal muscles were fixed in absolute ethyl alcohol. DNA was extracted and restricted by three enzymes, and RFLP technique was conducted. Molecular weight, optical density, flowing bands and Gel-Pro-Analyzer technique were also applied. Morphometric analysis of the two species was applied on the carapace width, carapace length and body weight. The estimation of similarity index applied on the two species was 0.59. In addition, morphometric studies showed no significant difference in the body weight and carapace length of all samples of both males and females. On the other hand, the mean width of carapace of 16.7% of the male samples showed significant difference, while the rest of male and female samples (83.3%) showed no significant difference. In conclusion, the result of RFLP together with the morphometric data may suggest that the two studied crabs belong to one species.

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