A new species of Ilyoplax (Decapoda, Brachyura, Dotillidae) from Gujarat, India

Trivedi, Jigneshkumar N.; Soni, Gunjan M.; Trivedi, Dhruva J.; Vachhrajani, Kauresh D.

doi:10.1016/j.japb.2015.02.005

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…Extensive studies were conducted on various groups of crustaceans inhabiting the coastal areas of Gujarat State to understand their diversity ( Trivedi & Vachhrajani, 2013 , 2017 ; Trivedi, Soni & Vachhrajani, 2015 ; Trivedi, Osawa & Vachhrajani, 2016 ; Trivedi, Trivedi & Vachharajani, 2017 ; Trivedi, Campos & Vachhrajani, 2018 ; Trivedi et al, 2015a , 2015b , 2018 , 2020 ; Patel et al, 2022 ; Thacker et al, 2023 ) and ecology ( Trivedi, 2016 ; Trivedi & Vachhrajani, 2012 ; Trivedi & Vachhrajani, 2014a , 2014b ). Among these, crabs are widely distributed omnivores that are sensitive to environmental changes and frequently employed as pollution indicators ( Aheto et al, 2011 ; Jonah et al, 2015 ; Doshi et al, 2024 ).…”

Section: Introductionmentioning

confidence: 99%

Microplastic from beach sediment to tissue: a case study on burrowing crab Dotilla blanfordi

Zala,

Rabari,

Patel

et al. 2024

PeerJ

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Background Microplastics (MPs) are pervasive pollutants in the marine environment, exhibiting persistence in coastal sediment over extended periods. However, the mechanism of their uptake by marine organisms and distribution in habitat is less understood. The objective of the present study was to investigate the presence of MP contamination in burrow sediment, feeding pellets, and tissue of Dotilla blanfordi in the Gulf of Kachchh, Gujarat State. Methods A total of 500 g of burrow sediment, 100 g of feeding pellets, and body tissue of 10 resident D. blanfordi were pooled as one replica. Such seven replicas from each site were analyzed for MP extraction from three sites, including Asharmata, Mandvi, and Serena, located in the Gulf of Kachchh. The standard protocol was used during the analysis of the collected samples in order to isolate MPs. Results The abundance of MP was found higher in burrow sediment, feeding pellets and tissue of D. blanfordi at study site Mandvi, followed by Serena and Asharmata. The abundance of MP was found higher in D. blanfordi tissue, followed by burrow sediment and feeding pellet. A significant variation was observed in MP abundance among burrow sediment, feeding pellets, and tissue. MPs with various shapes (fiber, film, and fragment), sizes (1–2, 2–3, 3–4, and 4–5 mm), and colors (blue, green, black, pink, purple, red transparent) were recorded from all the study sites. Polyurethane and polyvinyl chloride were recognized as the chemical profile of the extracted MPs. The current investigation revealed greater accumulation of MPs in D. blanfordi’s tissues compared to sediment and pellets, suggesting a risk of MP contamination in marine benthic fauna with a greater rate of bioaccumulation. D. blanfordi plays a significant role as a structuring agent for MP distribution in the intertidal flat through burrowing activity.

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Section: Introductionmentioning

confidence: 99%

Microplastic from beach sediment to tissue: a case study on burrowing crab Dotilla blanfordi

Zala,

Rabari,

Patel

et al. 2024

PeerJ

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“…The overall crab production of Gujarat was reported at around 179.60 million tonnes during 2007-2020 (179.60 million tonnes). Different groups of crustaceans occurring in the coastal areas of Gujarat State were studied extensively for their diversity (Trivedi and Vachhrajani, 2013;Trivedi et al, 2015a;Trivedi et al, 2015b;Trivedi et al, 2015c;Trivedi et al, 2016;Trivedi and Vachhrajani, 2017;Trivedi et al, 2018a;Trivedi et al, 2018b;Trivedi et al, 2020;Patel et al, 2022;Thacker et al, 2023) and ecology (Trivedi and Vachhrajani, 2012;Trivedi and Vachhrajani, 2014a;Trivedi and Vachhrajani, 2014b;Trivedi, 2016). According to Gosavi et al (2021), 163 brachyuran crab species have been found in coastal regions of Gujarat.…”

Section: Introductionmentioning

confidence: 99%

Ingestion and polymeric risk assessment of microplastic contamination in commercially important brachyuran crab Portunus sanguinolentus

Rabari,

Patel,

Ali

et al. 2023

Front. Mar. Sci.

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Microplastic (MP) in seafood is a growing area of food safety. In the present study, MP contamination in the commercially important crab Portunus sanguinolentus was assessed. A total of 300 crab specimens were collected from three principal fishing harbors of Gujarat. The collected specimens were analyzed for MPs isolation using a previously published protocol. The specimens were dissected, and organs such as the gut and gills were placed separately in the beaker. The organic tissues were digested using 10% KOH. After the digestion, flotation and filtration processes were carried out for the extraction of MPs. The physical (shape, size, and color) and chemical characterization of MPs were performed. The average abundance of MP was recorded as 0.67 ± 0.62 MPs/g. The pollution indices revealed very high contamination and fell under class IV (Jakhau) and V risk categories (Okha and Veraval). Microfibers were found dominantly. Blue and black-colored MPs with 1–2 mm sizes were recorded dominantly. Polyethylene, polyethylene tetraphene, polyurethane, polystyrene, and polypropylene were identified as polymer compositions of MPs. Concludingly, the present study gives an insight into the MP in an important crab species P. sanguinolentus, which can be useful to design further investigations on the toxicity of MPs in seafood.

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“…Deposit‐feeding crabs, such as fiddler crabs and dotillid crabs, feed on particulate organic matter in substrates derived from decomposed organic materials, vascular plants, microalgae, bacteria, and small interstitial organisms (Allen, 2010; Davie et al, 2015). In mudflats and sand flats, various species of deposit‐feeding dotillid crabs can be found, with some species inhabiting sand substrates (Gherardi et al, 2002; Lee & Lim, 2004; Takagi et al, 2010), some inhabiting mud substrates (Kitaura & Wada, 2006; Trivedi et al, 2015), and others inhabiting sandy mud substrates (Trivedi & Vachhrajani, 2018). The morphology of the feeding apparatus in these crabs, including the chelipeds, mouthpart appendages, and gastric mills, is related to the structure of sediment composition in the substrate in which they live.…”

Section: Introductionmentioning

confidence: 99%

Morphology of the gastric mill teeth in dotillid crabs (Crustacea: Brachyura: Dotillidae) from Indonesia

Murniati

Asakura

Nakano

et al. 2023

Journal of Morphology

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The gastric mill is a prominent structure in the digestive system of brachyuran crabs, consisting of a median tooth plate and a pair of lateral tooth plates. Among crab species that are deposit feeders, the morphology and size of the gastric mill teeth are correlated with the preferred substrate types and food spectrum. In this study, we provide a detailed description of the morphology of the median and lateral teeth of the gastric mills in eight species of dotillid crabs from Indonesia, and compare them in relation to habitat preferences and molecular phylogeny.Ilyoplax delsmani, Ilyoplax orientalis, and Ilyoplax strigicarpus have comparatively simple shapes of their median and lateral teeth, with fewer teeth on each lateral tooth plate compared to Dotilla myctiroides, Dotilla wichmanni, Scopimera gordonae, Scopimera intermedia, and Tmethypocoelis aff. ceratophora, which have more complexly shaped median and lateral teeth, with a greater number of teeth on each lateral tooth plate. The number of teeth on lateral tooth correlates with habitat preference, that is, dotillid crabs inhabiting muddy substrata have fewer teeth on the lateral tooth plate, and those inhabiting sandy substrata have a more teeth. Phylogenetic analysis using partial COI and 16S rRNA genes supports that teeth morphology is similar among closely related species. Therefore, the description of median and lateral teeth of the gastric mill is expected to contribute to the systematic study of dotillid crabs.

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A new species of Ilyoplax (Decapoda, Brachyura, Dotillidae) from Gujarat, India

Cited by 9 publications

References 8 publications

Microplastic from beach sediment to tissue: a case study on burrowing crab Dotilla blanfordi

Microplastic from beach sediment to tissue: a case study on burrowing crab Dotilla blanfordi

Ingestion and polymeric risk assessment of microplastic contamination in commercially important brachyuran crab Portunus sanguinolentus

Morphology of the gastric mill teeth in dotillid crabs (Crustacea: Brachyura: Dotillidae) from Indonesia

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