Factors influencing food composition, feeding habits and intensity of Glossogobius giuris caught from the vietnamese mekong delta

Dinh, Quang Minh; Truong, Ngon Trong; Phan, Gieo Hoang; Tran, Nam Sy; Nguyen, Ton Huu Duc

doi:10.1016/j.jksus.2022.102159

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Similar to Periophthalmus variabilis, several mudskippers in the MD also belong to the group of carnivores such as Periophthalmodon schlosseri (Tran et al, 2019) and Periophthalmodon septemradiatus . This assumption was also found in other gobies, such as Glossogobius giuris (Dinh et al, 2022), Glossogobius sparsipapillus , Butis koilomatodon (Nguyen et al, 2020), Oxyeleotris urophthalmus (Vo and Dinh, 2014), and Eleotris melanosoma (Dinh et al, 2017a). The feeding habits of fish were also not significantly different by sex of Glossogobius aureus (Phan et al, 2021).…”

Section: Discussionmentioning

confidence: 69%

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Hua,

Dinh,

Nguyen

2023

VIS

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Dusky-gilled mudskipper Periophthalmus variabilis, a member of the family Gobiidae, is a potential aquarium pet in the Mekong Delta (MD), Vietnam; however, data on its feeding habit and intensity has been limited. Therefore, this study aims to evaluate the relative gut length (RGL) and gastro-somatic index (GI) of Periophthalmus variabilis in order to determine the feeding habit and intensity of this mudskipper and its variation regarding sex, size, season, site, and their interaction. One thousand one hundred seventy mudskipper samples were collected monthly in four locations: Duyen Hai-Tra Vinh, Tran De-Soc Trang, Hoa Binh-Bac Lieu, and Dam Doi-Ca Mau from January 2022 to December 2022. The analysis showed that Periophthalmus variabilis was a carnivorous fish with an average RGL value of 0.52±0.01 SE (<1). In addition, the RGL of this species varied and depended on size, sampling site, season, and the interaction of both size and season with locations. The GI of the mudskipper was 4.27±0.29 SE, indicating that its feeding intensity belonged to the moderate category and varied with size and site but not sex, season, and interactions. These results supplement novel knowledge on its feeding habit and intensity, a basis for researching the aquaculture of Periophthalmus variabilis in MD.

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Section: Discussionmentioning

confidence: 69%

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Hua,

Dinh,

Nguyen

2023

VIS

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“…This procedure has been successfully applied to many species in VMD like Periophthalmodon schlosseri (Tran et al, 2019), Glossogobius aureus (Dinh et al, 2021b), Glossogobius sparsipapillus (Nguyen et al, 2019;Nguyen et al, 2021), Butis koilomatodon (Dinh et al, 2021a), Mystus mysticetus (Vo et al, 2022), Periophthalmus chrysospilos (Dinh et al, 2022a), and Glossogobius giuris (Dinh et al, 2022b;Dinh et al, 2022c).…”

Section: Discussionmentioning

confidence: 99%

Procedure for performing a fixed microscopic specimen of the gonads of fish

Dinh

Nguyen

2022

VIS

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This study aims to provide a procedure for performing microscopy in fish gonads. Specimens used in this study were the ovaries and testes of fish collected in the Mekong Delta from April to July 2022. Organs at five different stages for each sex (ovary diameter from 1.16 cm in stage I to 4.04 cm in stage V; testis diameter from 0.42 in stage I to 2.39 in stage V) were studied in this procedure. The results showed that both ovaries and testes needed to be fixed at 4% formol for 24 h and under running water for eight hours. Ovaries and testes were then immersed in 500 ethanol for 24 h to initiate dehydration. Results showed that the time for dehydration and paraffin infiltration was longer in the ovary (26 to 55 h across stages) than in the testis (25 to 26 h across stages). The mean staining time of the ovary was 1.5 min (stage I) to 3.5 min (stage V) in Hematoxylin and 50 s (stage I) to 140 s (stage V) in Eosin. Whereas the staining time of testis was shorter, 1 min (stage I) to 3 min (stage V) in Hematoxylin and 30 s (stage I) to 90 s (stage V) in Eosin. This study provides a reference for further studies on the histological structure of fish gonads. These results could be applied to fish species inside and outside the Mekong Delta.

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Diet characteristics of tidal creek-associated fishes of the northeastern Arabian Sea with special reference to microplastic ingestion

Mallik,

Chakraborty,

Ramteke

et al. 2024

Chemosphere

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Factors influencing food composition, feeding habits and intensity of Glossogobius giuris caught from the vietnamese mekong delta

Cited by 4 publications

References 18 publications

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Procedure for performing a fixed microscopic specimen of the gonads of fish

Diet characteristics of tidal creek-associated fishes of the northeastern Arabian Sea with special reference to microplastic ingestion

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