Structural and Ultrastructural investigation on the digestive tubules of the freshwater mussel Caelatura parreyssi (Family: Unionidae) (Philippi, 1848) from the River Nile (Egypt).

Awad, Ilham R.

doi:10.21608/ejabf.2018.7979

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…Ducts were pale yellowish in colour have been observed. In sampled specimen gonad is running along the digestive tract [23]. The gonad is composed of many-branched, ciliated ducts from which numerous sacs, termed follicles, open [24].…”

Section: Discussionmentioning

confidence: 99%

First Report of Glauconome chinensis (Gray, 1828) from West Bengal-Odisha Coast, India

Maiti,

Islam,

Midya

2024

UPJOZ

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The intertidal marine bivalve Glauconome chinensis (Chinese glauconome), Gray 1828 is a burrowing benthic fauna inhabiting in soft muddy to sandy sediments of Western pacific mangrove areas. The specimen is characterised by long siphon (inhalant and exhalent) for feeding and a prominent foot for locomotion. They are mostly gonochoric, few are sometimes protandric hermaphrodites. According to Gray’s description their embryonic development starts through free swimming trochophore larvae and succeeded by the veliger. Glauconome chinensis has been rediscovered for the first time from the intertidal coastal mangrove areas of Talsari, confluence of Subarnarekha estuary of West Bengal-Odisha coast, India. Quadrates having areas of 1m² were placed randomly on study sites and the studied specimens were unearthed, counted their size, biomas, population density and distribution pattern. Physico-chemical parameters were also evaluated. For anatomical study tissues were fixed in 4% formalin solution and processed through alcoholic grades. Body length, siphon, gill, mantle, foot, adductor muscles, digestive gland and gonads were examined. The studied specimens were stayed in 10-40cm depth from sediment surface and showed clumped distribution pattern. The mean length, width and biomass of the specimen were 39.2(mm) ±0.393, 14.5(mm) ±0.351and 3.89(gm) ±0.382 respectively. The report on the occurrence of such intertidal bivalve adds relevant data for the good assessment of food chain and food web of marine coastal mangrove ecosystem. The present study also aims to gather knowledge of valuable ecological services of Glauconome chinensis and to maintain the biological integrity of West Bengal-Odisha coastal region with Bay of Bengal.

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Section: Discussionmentioning

confidence: 99%

First Report of Glauconome chinensis (Gray, 1828) from West Bengal-Odisha Coast, India

Maiti,

Islam,

Midya

2024

UPJOZ

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“…Little is known about the biology of freshwater bivalves in Egypt, except the information provided on the anatomy of one species through which the ultrastructural of the digestive tubules of the freshwater mussel Caelatura parreyssi from the Nile Riverwas subjected to study (Soliman, 2001;Awad, 2018).…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Freshwater Bivalves Using Inter Simple Sequence Repeat Markers

Abdel-Mawgood et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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“…Little is known about the biology of freshwater bivalves in Egypt, except the information provided on the anatomy of one species by who studied ultrastructural of the digestive tubules of the freshwater mussel Caelatura parreyssi from the Nile River (Soliman 2001;Awad 2018).…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Freshwater Bivalves Using Inter Simple Sequence Repeat Markers

Abdel-Mawgood

Radwan

Ghonim

et al. 2022

Preprint

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Freshwater muscles are highly impacted by many human activities. As a result, it is considered as one of the most threatened ecosystem worldwide. Studying genetic diversity is crucial for any further research on conservation efforts. In the present study, inter simple sequence repeat (ISSR) marker analysis was employed to study genetic diversity between 8 randomly selected specimens of bivalve. Total of 53 bands were produced from the 10 primers. Of these 37 bands were polymorphic, resulted in 69.8% polymorphism. Some primers showed more polymorphic bands than the others. For example, primer ISSR M17 produced no polymorphic bands. While primer ISSR M1 produced 3 polymorphic bands (100% polymorphism). Cluster analysis based on similarity matrix obtained showed that the 8 bivalve specimens can be clustered into two groups, one group containing specimens 2 and 6 and the other group represents specimens 4, 5, 1, 3, 7, and 8. These data may suggest that the bivalves in Abohomos, Behera Governorate may have more than one species. The implication of these data on the conservation of the bivalve is explained. The conclusion is that the bivalve population have enough genetic diversity. These populations are adapted to the environment they lives in.

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Structural and Ultrastructural investigation on the digestive tubules of the freshwater mussel Caelatura parreyssi (Family: Unionidae) (Philippi, 1848) from the River Nile (Egypt).

Cited by 3 publications

References 28 publications

First Report of Glauconome chinensis (Gray, 1828) from West Bengal-Odisha Coast, India

First Report of Glauconome chinensis (Gray, 1828) from West Bengal-Odisha Coast, India

Genetic Diversity of Freshwater Bivalves Using Inter Simple Sequence Repeat Markers

Genetic Diversity of Freshwater Bivalves Using Inter Simple Sequence Repeat Markers

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