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63354

Age, growth and maturity of the thin-lipped grey mullet, liza ramada in Bardawil lagoon, North Sinai, Egypt

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Last updated: 25 Dec 2024

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Abstract

Age and growth of 599 thin-lipped grey mullet, Liza ramada from the Bardawil lagoon were estimated by ring counts on scalesduring April to December, 2013. Lengths (Lt) ranged between 11.6 to 45.8 cm and the corresponding weight (Wt)was 28 to 668 g. All fishes aged from 0 to 6 years, with age 1st, 2nd, 3th year being the most dominant age groups. The length-weight relationship indicated negative allometric growth (b=2.764).  Back– calculated lengths were16.9, 23.1, 28.3, 32, 35.5 and 38.3 cm to ages 1st, 2nd, 3th, 4th, 5th and 6th, respectively. Von-Bertalanffy growth parameters (VBGP) were L∞=50.95cm, K=0.1977yr-1, t0= -1.04yr-1. The growth performance index (φ) was 2.71.The sex ratio of L. ramada in the present study was ≈ 1:2 male to female, respectively. The reproductive activity starts in September, while the highest values of GSI were at November and December. The length at first sexual maturity (Lm50) was estimated at 28.6 cm (≈ 3.1 years) and 29.6 cm      (≈ 3.4 years) for males and females, respectively.

DOI

10.21608/jades.2016.63354

Keywords

Thin-lipped grey mullet, Liza ramada, Age, Growth, maturity, Bardawil Lagoon

Authors

First Name

Gaber

Last Name

Dessouky

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Affiliation

Faculty of Environmental Agricultural Sciences, EL-Arish, Suez Canal Univ

Email

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City

Cairo

Orcid

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First Name

Azza

Last Name

El-Ganainy

MiddleName

-

Affiliation

National Institute of Oceanography and Fisheries, Suez, Egypt

Email

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City

Suez

Orcid

-

First Name

Mohamed

Last Name

Salem

MiddleName

-

Affiliation

Faculty of Environmental Agricultural Sciences, EL-Arish, Suez Canal Univ., Egypt

Email

-

City

Cairo

Orcid

-

First Name

Atya

Last Name

El-Aiatt

MiddleName

-

Affiliation

National Institute of Oceanography and Fisheries, Suez, Egypt

Email

-

City

Suez

Orcid

-

First Name

Amany A. Mahmoud

Last Name

Amany A. Mahmoud

MiddleName

-

Affiliation

Faculty of Environmental Agricultural Sciences, EL-Arish, Suez Canal Univ., Egypt

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-

City

-

Orcid

-

Volume

17

Article Issue

1

Related Issue

9570

Issue Date

2016-12-01

Receive Date

2019-01-16

Publish Date

2016-12-01

Page Start

25

Page End

36

Print ISSN

1110-8770

Online ISSN

2314-5471

Link

https://jades.journals.ekb.eg/article_63354.html

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https://jades.journals.ekb.eg/service?article_code=63354

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3

Type

Original Article

Type Code

1,097

Publication Type

Journal

Publication Title

Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies

Publication Link

https://jades.journals.ekb.eg/

MainTitle

Age, growth and maturity of the thin-lipped grey mullet, liza ramada in Bardawil lagoon, North Sinai, Egypt

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Article

Created At

22 Jan 2023