Reproductive biology of the mudskipper  Boleophthalmus boddarti in Soc Trang

Dinh, Quang Minh; Giang, Nguyen Thi Tra; Tien, Nguyen Thi Kieu

doi:10.15625/0866-7160/v37n3.6720

Cited by 12 publications

(11 citation statements)

References 13 publications

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“…For example, in Imo estuary, Nigeria, Periophthalmus barbarus spawned mainly in May [ 39 ]; in Malaysia’s coastal mudflat, the reproductive season of Periophthalmodon schlosseri was from April to October [ 40 ]. Several of gobies living in the estuarine in the Mekong Delta also spawned in the wet season due to nutrient richness in the dry season, namely Pseudaporcyptes elongatus [ 41 ], Boleophthalmus boddarti [ 42 ], Parapocryptes serperaster [ 8 ], Trypauchen vagina [ 43 ], and Stigmatogobius pleurostigma [ 44 ].…”

Section: Discussionmentioning

confidence: 99%

First reference on reproductive biology of Butis koilomatodon in Mekong Delta, Vietnam

Dinh¹,

Lam²,

Nguyen³

et al. 2021

BMC Zool

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Background The key to fishery management is knowing the appropriate reproductive strategies of the targeted fish. For most gobiid species, the iteroparous pattern is dominant compared to semelparity. Albeit Butis koilomatodon plays an important role in the Mekong Delta’s food supply, its reproductive biological data have not been known. Hence, this study was conducted to provide new fundamental knowledge of reproductive traits of Butis koilomatodon in the Mekong Delta. Results A total of 1314 individuals (903 males and 411 females) were monthly collected by bottom gill nets from July 2019 to June 2020 at six sampling sites along estuarial and coastal regions, from Tra Vinh to Ca Mau provinces, southern of Vietnam. pH and salinity of these six sampling sites are 7.72–7.93 pH and 11.17–26.17‰, respectively. The pH varies with sites, but not seasons; whereas a reverse case is found in salinity. Different types of oocytes are found in histological specimens of ovaries prove that B. koilomatodon is a multi-spawner. The gonadosomatic index value, together with the monthly presence of mature ovaries reveal that this species spawns throughout the year. The length at first mature male Butis koilomatodon (5.1–8.6 cm) is higher than that of females (4.8–6.7 cm), except in Hoa Binh and Dong Hai. Batch fecundity (3085 to 32,087 eggs/female) increases with fish weight (1.48–12.30 g) and length (4.8–9.0 cm) due to high determination values (r2 > 0.6). Conclusion Knowledge of reproductive traits gained from this study was a reference source for future studies and helped manage this species’ resources.

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Section: Discussionmentioning

confidence: 99%

First reference on reproductive biology of Butis koilomatodon in Mekong Delta, Vietnam

Dinh¹,

Lam²,

Nguyen³

et al. 2021

BMC Zool

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“…There are two possible ways for recruitment from the southern to the eastern populations. First, the currents in the Gulf of Thailand move from south to east in May to September (Sojisuporn et al, 2010), which includes the spawning season of mudskippers from August to October (Quang et al, 2016). Second, the planktonic larvae of the fish may be transported in ship ballast water, for vessels moving from the Songkla port (in the southern part of the Gulf) to the Map Ta Put and Laem Chabang ports (in the eastern part of the Gulf).…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity of blue-spotted mudskipper (Boleophthalmus boddarti) populations in Gulf of Thailand

2021

ANRES

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Environmental changes and the reduction of habitat can threaten populations of mudskippers, which have a distinct life cycle compared with other fish species. Genetic diversity and structure are crucial information for the conservation plan of this species. The genetic diversity was investigated on the blue-spotted mudskipper, Boleophtalmus boddarti, in the Gulf of Thailand. In total, 178 fish were collected from six locations in the Gulf. Based on the 320 bp sequences of the mitochondrial control region of the 55 haplotypes observed, the most common was in 88 fish from all locations. Total haplotype diversity and nucleotide diversity values (mean ± SD) were h = 0.751 ± 0.036 and π = 0.0069 ± 0.0001, respectively. There was a significant (p = 0.011) difference in π between inner and outer Gulf samples. Although the analysis of molecular variance suggested the absence of genetic structuring within the Gulf, two clear groups of haplotypes were evident in the medianjoining network of haplotypes. Group I included haplotypes from all locations and group II was identified by haplotypes with an additional adenine at the 16078 th position based on the mitochondrial genome sequence of B. boddarti (Accession no. KF87427). The results of the nonmetric multidimensional scaling and Bayesian assignment test were indicative of genetic divergence between the inner and outer Gulf, suggesting that despite the high potential for dispersal of planktonic larvae, water currents may act as a physical barrier to gene flow in the study area. The observed signals of population divergence between B. boddarti from the inner and outer Gulf of Thailand may account for the presence of this oceanographical barrier. Mismatch distributions, based on the observed number of differences among haplotype pairs, produced a unimodal distribution with a peak close to the y-axis, suggesting recent demographic expansion. The results could augment future study with baseline information on the maternal genetic variation and structure of the bluespotted mudskipper, B. boddarti, populations in the Gulf of Thailand.

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“…The percentage of frequency of male and female mudskipper IV GML in each species showed a percentage of about 20.69%. The fish spawning season coincides with the rainy season, although local conditions also influence the spawning peaks (Sakamoto et al 2015;Quang et al 2015). The rainy season provides advantages with the availability of sufficient food for larvae and fish fry for survival and development (Siby et al 2009).…”

Section: Gonad Maturity Level (Gml) Mudskippermentioning

confidence: 99%

Short Communication: Investigating gonad length and fecundity in mudskippers (Gobiidae) at the Musi River estuary, South Sumatra, Indonesia

et al. 2021

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Abstract. Ridho MR, Patriono E, Wati DR, Pratama R, Avesena M. 2021. Short Communication: Investigating gonad length and fecundity in mudskippers (Gobiidae) at the Musi River estuary, South Sumatra, Indonesia. Biodiversitas 22: 4413-4420. Information on the biological aspects of mudskipper (Gobiidae) reproduction is needed as a conservation effort to use economically valuable and sustainable resources in the future. This can be used to enrich the information on the status of the mudskipper research at the Musi River estuary, South Sumatra, Indonesia. The field sampling was carried out by using the purposive sampling method. The sampling of fish was carried out by the researchers and assisted by the people of the community using fishing rods and bubu fish traps. The results showed that 122 mudskipper were obtained, which consisted of four species Boleophthalmus boddarti, Boleophthalmus dussumieri, Periophthalmus chrysospilos, Periophthalmodon schlosseri. 93 male and 29 female fish were caught, the sex ratio was 3.20:1. There are more male than female fish overall with the sampling method used. Most of the female fish fecundity was reported in P. chrysospilos, namely 23,270-36,264 items in GM (III) and ranged from 40,825-87,749 items in GM (IV). The largest egg diameter was reported in P. chrysospilos by 0.051-0.069 mm (GML III) and 0.053-0.062 mm (GML IV), while the smallest weight and length were reported in P. chrysospilos than other species. The egg size was not positively correlated with body size.

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Reproductive biology of the mudskipper Boleophthalmus boddarti in Soc Trang

Cited by 12 publications

References 13 publications

First reference on reproductive biology of Butis koilomatodon in Mekong Delta, Vietnam

First reference on reproductive biology of Butis koilomatodon in Mekong Delta, Vietnam

Genetic diversity of blue-spotted mudskipper (Boleophthalmus boddarti) populations in Gulf of Thailand

Short Communication: Investigating gonad length and fecundity in mudskippers (Gobiidae) at the Musi River estuary, South Sumatra, Indonesia

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