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195268

Growth rate, condition index, and cultural potential of the brown mussel Perna perna (Linnaeus, 1758) reared in a submerged longline system in Dakhla Bay, Morocco

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Last updated: 01 Jan 2025

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Abstract

This study is designed to monitor the zootechnical performance of the African mussel "Perna perna" in submerged longline at the Boutalha area in Dakhla Bay, for two production cycles carried out during the years 2019 and 2020. The first rearing cycle started on March the 26th, 2019 with a spat of mean size 19.1±3.23 mm, and a mean weight of 0.79±0.32 g. While the second cycle was launched on January the 6th, 2020 by rearing the spat of mean size 22.31 ± 3.12 mm and mean weight of 2.24±1.52 g. A sampling of mussels was done monthly for the growth monitoring and the daily monitoring of physicochemical parameters of the farming medium.  The results showed that the growth rate was almost similar for both rearing cycles, with a gain in length/ weight of about 6.57mm/2.75g and 5.98mm/2.86g, respectively for the first and second cycles. The live weight/growing rates recorded respectively for the first and second cycles, once the commercial size (60mm) was obtained,  were 20.01±5.24g/ 19.97% and 22.28±6.65g/16.83% achieving a filling rate of 38.07%/37.94%, thereafter the rearing period was 6.5 months/7 months. Regarding the production and biomass, the results revealed that the biomass per longline exceeded the value of 9.5 tons for both cycles.  

DOI

10.21608/ejabf.2021.195268

Authors

First Name

Omar

Last Name

Izzabaha et al.

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Volume

25

Article Issue

4

Related Issue

26733

Issue Date

2021-07-01

Receive Date

2021-09-19

Publish Date

2021-07-01

Page Start

823

Page End

837

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_195268.html

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https://ejabf.journals.ekb.eg/service?article_code=195268

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Original Article

Type Code

103

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Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

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https://ejabf.journals.ekb.eg/

MainTitle

Growth rate, condition index, and cultural potential of the brown mussel Perna perna (Linnaeus, 1758) reared in a submerged longline system in Dakhla Bay, Morocco

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Article

Created At

22 Jan 2023