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PDF Quantitative Developmental Studies on the Otolith of Tilapia nilotica (Oreochromis niloticus) with Reference to Weight and Length

Article

Last updated: 03 Jan 2025

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Subjects

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Tags

Academic and Pre-clinical Veterinary Sciences (Physiology, Histology, …rology, Parasitology, Pharmacology, Forensic Medicine and Toxicology)

Abstract

Owing to the biological and ecological importance of the otolith and the significant role of Tilapia nilotica in aquaculture production, in addition to the less information about the relationships between the size in both otolith and fish individuals, this study was carried out. Forty-five fish specimens of variable length and weight Tilapia nilotica (Oreochromis niloticus) were collected from Al-Abbasa fish farms, Sharkia Governorate, Egypt. The lengths and weights of fish and their otoliths were recorded and the mean as well as the standard deviation were estimated. The different relationships between fish and otolith with regard to length and weight were identified by Pearson correlation coefficients. The means of Tilapia nilotica body weight and otolith weight were 225105.7 mg±182402.31 and 55.9743 mg±32.93714, respectively. Moreover, the means of fish body length and otolith length were 172.429 mm±74.8580 and 8.1571 mm±3.54984, respectively. In conclusion, there was a positive linear relationship between the developmental rate of fish and otoliths, taking the weights of fish and otoliths in consideration all over this research

DOI

10.21608/zvjz.2016.7860

Keywords

Sagittal otolith, Tilapia nilotica, length, weight

Authors

First Name

Ahmed

Last Name

Omar

MiddleName

-

Affiliation

Anatomy and Embryology Department, Faculty of Veterinary Medicine, Zagazig University, 44511, Egypt

Email

amesaomar@yahoo.com

City

-

Orcid

-

First Name

Hanaa

Last Name

El-Ghazali

MiddleName

-

Affiliation

-

Email

dr_h1980@hotmail.com

City

-

Orcid

-

Volume

44

Article Issue

2

Related Issue

1525

Issue Date

2016-06-01

Receive Date

2018-06-06

Publish Date

2016-06-01

Page Start

177

Page End

186

Print ISSN

1110-1458

Online ISSN

2357-075X

Article File

ZVJZ_Volume 44_Issue 2_Pages 177-186.pdf

PDF . 704.3kB

Link

https://zvjz.journals.ekb.eg/article_7860.html

Detail API

https://zvjz.journals.ekb.eg/service?article_code=7860

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10

Publication Type

Journal

Publication Title

Zagazig Veterinary Journal

Publication Link

https://zvjz.journals.ekb.eg/

MainTitle

PDF Quantitative Developmental Studies on the Otolith of Tilapia nilotica (Oreochromis niloticus) with Reference to Weight and Length

Details

Type

Article

Created At

22 Jan 2023