Biometric Relationships for the Bivalve Mussel, Brachidontes pharaonis Populations from the North-Western Coast of Suez Gulf, Egypt.

M., El-Sayed A. A.; Ibrahim, Najat El-Mabrouk O.; Nassef, Amr M.; El-Hammady, Montaser A.; A., El-Mekawy H.

doi:10.21608/eajbsz.2016.13464

Cited by 2 publications

(6 citation statements)

References 9 publications

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“…Also, Radwan (2014) reported that b value for specimens of B. pharaonis was 2.38 from Lake Timash (Suez Canal), 2.76 from Gulf of Suez, 2.78 from Marsa Alam (Red Sea), 2.97 from Bardawil Lagoon and 2.71 from Port Said (Mediterranean Sea) On the other hand, in the present study the relative coefficient of condition (kn) values of B. pharaonis in the investigated habitats on the Suez Gulf were more than 0ne indicating the suitability of the environment for their growth. This agreed with the results of El-Sayed et al (2016) for two populations of the same species from Adabia and Ain Sokhna on Suez Gulf.…”

Section: -Morpology and Morphometrysupporting

confidence: 90%

“…In the present investigation the growth of total body weight with shell length of B. pharaonis was allometric. Similar results were given by El-Sayed et al (2016) for the two populations of the same species from Adabia and Ain Sokhna on Suez Gulf with b values of the regression coefficients of this relationship were 2.112 and 2.376, respectively. In the current study the value of (b) was estimated to be 2.630.…”

Section: -Morpology and Morphometrysupporting

confidence: 82%

“…The maximum shell length and total body weight of specimens of B. pharaonis from Adabia were 33.2mm and 3.25 g, respectively, while those from Ain Sokhna were 37.3 mm and 4.75g (El-Sayed et al, 2016). In the current study the maximum shell length and total body weight of the same species from NIOF on Suez Gulf were 32.5mm and 1.815g.…”

Section: -Morpology and Morphometrysupporting

confidence: 45%

“…Few studies were done on the ecology, age structure, distribution, biometric relationships and hermaphroditism of B. pharaonis from the Red Sea, Gulf of Suez and Eastern Mediterranean Coast of Egypt (Mohamed, 1992(Mohamed, , 1997Radwan, 2014;El-Sayed et al, 2016;Abdel Razek et al, 2017). Studying morphological variation can represent a powerful indicator for understanding the adaptation of organisms and help to predict their responses in their rapidly changing environment (Telesca et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Morphology, morphometry and population dynamics of the mussel Brachidontes pharaonis from the western region of Gulf of Suez

Ragab,

Tantawy,

Meselhy

et al. 2023

African Journal of Biological Sciences

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The morphology, morphometry and population dynamics of the mussel Brachidontes pharaonis from the rocky shore of the western region of Gulf of Suez at National Institution of Oceanography and Fisheries, Suez were studied. The study area was described as well as the species composition. The external and interior shell morphology of B. pharaonis was described. The estimated constants A and B for the morphometric relationships were computed. The shell length of B. pharaonis ranged between 4.5 to 32.5 mm with mean 17.9 mm and the corresponding total body weight (TBWt) was 0.015 to 2.195 g with mean 1.498g. The lengthfrequency distribution of monthly samples from July 2019 2019 to May 2020 has been studied. The age and growth of 674 specimens of this species were estimated by using length-frequency distribution method. The von-Bertalanffy growth parameters (VBGP) were L∞=34.13 mm, K=1.0yr -1 , t 0 = 0.0yr -1 , W∞=3.11 g. The growth performance index (φ) was 3.66 for length and 3.0 for weight. The length-weight relationship indicated negative allometric growth (b=2.5391).

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Section: -Morpology and Morphometrysupporting

confidence: 90%

Section: -Morpology and Morphometrysupporting

confidence: 82%

Section: -Morpology and Morphometrysupporting

confidence: 45%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Morphology, morphometry and population dynamics of the mussel Brachidontes pharaonis from the western region of Gulf of Suez

Ragab,

Tantawy,

Meselhy

et al. 2023

African Journal of Biological Sciences

View full text Add to dashboard Cite

show abstract

“…This species was reported from the Red Sea including Gulfs of Suez and Aqaba by several authors particularly Sharabati (1984), Vine (1986), Head (1987), Mastaller (1987), Mohamed (1992), Rusmore-Villaume (2008), and Radwan (2014). It was also treated among Suez Gulf fauna reported by El Mekawy (2016), and El-Sayed et al (2017) and its biometric relationships was also studied by El-Sayed, et al (2016).…”

Section: Introductionmentioning

confidence: 99%

Aspects of Reproductive Biology of the Mussel, Brachidontes Pharaonis (Fischer, 1870) (Mytilidae:bivalvia: Mollusca) From the Northwestern Coast of Suez Gulf, Egypt

El‐Sayed

2018

Al-Azhar Bulletin of Science

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Reproductive cycle of the two populations of Brachidontes pharaonis (Mytilidae: Bivalvia: Mollusca)at Adabia and Ain Sokhna (northern western coast of the Suez Gulf), was studied during the period from January to December 2014. The present results showed that sex is separated in this species, but the microscopic examinations are necessary for determination of gonads in both sexes. The first appearance for gonads was observed in males and females at 6.3and 6.5 mm shell length, respectively. However, the largest immature individuals reach 8.6 mm shell length. The overall sex ratio indicated to over dominant females at both sites, with 1:1.57 (males: females) at Adabia, increased slightly to 1:1.81 (males: females) at Ain Sokhna, with statistical significant differences (X 2 = 8.33 and 5.14 significant at P<0.001 and P<0.05), respectively. Gonads of both sexes appeared scattered within mantle tissues at both left and right sides of the animal. Mature male testes have whitish or creamy color, while females ovaries are more conspicuous, appeared lobulated and composed of a large numbers of oogenic follicles occupying most of the mantle depending on stages of egg maturation. In early stages, ovaries appear small in size, translucent, and have small oocytes. The sexually matured females have dark yellow to orange ovaries due to occurrence of full ripe ova full of yolk granules. Based on oocyte maturation, five developmental stages were recognized, comprised: stage I (immature), stage II (early stage of development), stage III (maturing stage), stage IV: late developing stage (ripe and spawning egg) and stage V (spent stage). Each developmental stage was characterized and identified by its specific features. The average values of mantle index and developmental stages showed that, the populations of B. pharaonis at Adabia and Ain Sokhna have lengthy breeding seasons extends from September to the end of the following April, with two peaks of spawning in early spring and late autumn at Adabia, extends through early and late spring, and through autumn at Ain Sokhna. The oocyte diameter varied from 30.

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Biometric Relationships for the Bivalve Mussel, Brachidontes pharaonis Populations from the North-Western Coast of Suez Gulf, Egypt.

Cited by 2 publications

References 9 publications

Morphology, morphometry and population dynamics of the mussel Brachidontes pharaonis from the western region of Gulf of Suez

Morphology, morphometry and population dynamics of the mussel Brachidontes pharaonis from the western region of Gulf of Suez

Aspects of Reproductive Biology of the Mussel, Brachidontes Pharaonis (Fischer, 1870) (Mytilidae:bivalvia: Mollusca) From the Northwestern Coast of Suez Gulf, Egypt

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