AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE
Marine aquaculture was introduced in Morocco in the 1950s and has since known little development. Oyster farming was initiated in the lagoon of Oualidia and currently constitutes 72% of Moroccan aquaculture production. For this study the pacific oyster Crassostrea gigas was grown using rack-and-bag...
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ftzenodo:oai:zenodo.org:2354286 2024-09-15T18:03:06+00:00 AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE Ahmed Kaddioui Mohamed Idhalla Jawad Kassila Mouna El Mdari Oum keltoum Belhsen Ahmed Errhif 2018-11-04 https://doi.org/10.5281/zenodo.2354286 unknown Zenodo https://doi.org/10.5281/zenodo.2354285 https://doi.org/10.5281/zenodo.2354286 oai:zenodo.org:2354286 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Aquaculture Crassostrea gigas Growth Performance Morocco Oualidia info:eu-repo/semantics/article 2018 ftzenodo https://doi.org/10.5281/zenodo.235428610.5281/zenodo.2354285 2024-07-26T22:09:47Z Marine aquaculture was introduced in Morocco in the 1950s and has since known little development. Oyster farming was initiated in the lagoon of Oualidia and currently constitutes 72% of Moroccan aquaculture production. For this study the pacific oyster Crassostrea gigas was grown using rack-and-bag culture at two sites; Oualidia lagoon and Sidi Moussa lagoon, a potential new aquaculture site, both situated on the Atlantic Moroccan shore. The aim of this study was to examine the growth performance, condition and survival rates of the pacific oyster grown in the two lagoons. Samples were taken at a monthly frequency. Growth rates, condition and mortality were investigated in both sites from August 2014 to July 2015. Temperature, Salinity, Total Suspended Solids in the water, Nitrates and Phosphates were monitored at both sites at the same time. Results show that at the end of the experiment, significantly greater length was observed for oysters reared at SM reaching an average of (123.2 mm). Dry weight of oysters at OA were significantly lower compared to oysters reared at SM from February to July 2015, the maximum dry weight observed at the end of the experiment was (4.73g) at OA and (5.95g) at SM. The Condition index ranged from 3.19 to 8.97 and from 4.04 to 7.62 at OA and SM respectively. Cumulative mortality recorded in SM was significantly lower than in OA. The good growth performance and the high survival of the Pacific oyster lead to the conclusion that the lagoon of Sidi Moussa can be a new potential site for aquaculture production. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Zenodo |
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topic |
Aquaculture Crassostrea gigas Growth Performance Morocco Oualidia |
spellingShingle |
Aquaculture Crassostrea gigas Growth Performance Morocco Oualidia Ahmed Kaddioui Mohamed Idhalla Jawad Kassila Mouna El Mdari Oum keltoum Belhsen Ahmed Errhif AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
topic_facet |
Aquaculture Crassostrea gigas Growth Performance Morocco Oualidia |
description |
Marine aquaculture was introduced in Morocco in the 1950s and has since known little development. Oyster farming was initiated in the lagoon of Oualidia and currently constitutes 72% of Moroccan aquaculture production. For this study the pacific oyster Crassostrea gigas was grown using rack-and-bag culture at two sites; Oualidia lagoon and Sidi Moussa lagoon, a potential new aquaculture site, both situated on the Atlantic Moroccan shore. The aim of this study was to examine the growth performance, condition and survival rates of the pacific oyster grown in the two lagoons. Samples were taken at a monthly frequency. Growth rates, condition and mortality were investigated in both sites from August 2014 to July 2015. Temperature, Salinity, Total Suspended Solids in the water, Nitrates and Phosphates were monitored at both sites at the same time. Results show that at the end of the experiment, significantly greater length was observed for oysters reared at SM reaching an average of (123.2 mm). Dry weight of oysters at OA were significantly lower compared to oysters reared at SM from February to July 2015, the maximum dry weight observed at the end of the experiment was (4.73g) at OA and (5.95g) at SM. The Condition index ranged from 3.19 to 8.97 and from 4.04 to 7.62 at OA and SM respectively. Cumulative mortality recorded in SM was significantly lower than in OA. The good growth performance and the high survival of the Pacific oyster lead to the conclusion that the lagoon of Sidi Moussa can be a new potential site for aquaculture production. |
format |
Article in Journal/Newspaper |
author |
Ahmed Kaddioui Mohamed Idhalla Jawad Kassila Mouna El Mdari Oum keltoum Belhsen Ahmed Errhif |
author_facet |
Ahmed Kaddioui Mohamed Idhalla Jawad Kassila Mouna El Mdari Oum keltoum Belhsen Ahmed Errhif |
author_sort |
Ahmed Kaddioui |
title |
AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
title_short |
AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
title_full |
AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
title_fullStr |
AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
title_full_unstemmed |
AQUACULTURE IN MOROCCO: GROWTH PERFORMANCE OF CRASSOSTREA GIGAS IN TWO LAGOONS ON THE ATLANTIC SHORE |
title_sort |
aquaculture in morocco: growth performance of crassostrea gigas in two lagoons on the atlantic shore |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://doi.org/10.5281/zenodo.2354286 |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_relation |
https://doi.org/10.5281/zenodo.2354285 https://doi.org/10.5281/zenodo.2354286 oai:zenodo.org:2354286 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.235428610.5281/zenodo.2354285 |
_version_ |
1810440623346417664 |