The Influence of Season on the Gonad Index and Biochemical Composition of the Sea Urchin Paracentrotus lividus from the Golf of Tunis
Seasonal variation in the gonad weight and biochemical composition of the sea urchin Paracentrotus lividus from the Golf of Tunis (Tunisia) were studied between September 2003 and August 2004. The highest gonad indices occurred in March (16.71%). The spawning period occurred between April and July a...
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/815935 |
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| author | Soumaya Arafa Moncef Chouaibi Saloua Sadok Amor El Abed |
| author_facet | Soumaya Arafa Moncef Chouaibi Saloua Sadok Amor El Abed |
| author_sort | Soumaya Arafa |
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| description | Seasonal variation in the gonad weight and biochemical composition of the sea urchin Paracentrotus lividus from the Golf of Tunis (Tunisia) were studied between September 2003 and August 2004. The highest gonad indices occurred in March (16.71%). The spawning period occurred between April and July and resulted in a fall in gonad indices to low level (7.12 ± 0.12%). Protein constituted the main component of the gonad, and lipid and carbohydrate were found at appreciable amounts. Consistent with the gonad cycle, sea urchin biochemical components showed clear seasonal variation with a significant decrease during the spawning period. The polyunsaturated fatty acid (PUFA) group was found at high level (40% of the total fatty acids). Of the PUFA group, eicosapentaenoic (C20:5 n−3) and eicosatetraenoic (C20:4 n−3) were the most abundant gonadal lipids. The level of PUFA was significantly affected by temperature variation showing an increase during the cold months and a decrease in the hot months. |
| format | Article |
| id | doaj-art-f8ca31122bd54c0190b2989e6a30ba90 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f8ca31122bd54c0190b2989e6a30ba902025-02-03T01:33:24ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/815935815935The Influence of Season on the Gonad Index and Biochemical Composition of the Sea Urchin Paracentrotus lividus from the Golf of TunisSoumaya Arafa0Moncef Chouaibi1Saloua Sadok2Amor El Abed3Department of Valorisation and Conservation of food product, Ecole Supérieure des Industries Alimentaires de Tunis, 58 Avenue Alain Savary, Cité El Khadhra, Tunis 1003, TunisiaDepartment of Valorisation and Conservation of food product, Ecole Supérieure des Industries Alimentaires de Tunis, 58 Avenue Alain Savary, Cité El Khadhra, Tunis 1003, TunisiaDepartment of Biotechnology, Institut National des Sciences et Technologies de la Mer, 28 Rue 2 Mars 1934, Carthage, Salammbo, Tunis 2025, TunisiaDepartment of Biotechnology, Institut National des Sciences et Technologies de la Mer, 28 Rue 2 Mars 1934, Carthage, Salammbo, Tunis 2025, TunisiaSeasonal variation in the gonad weight and biochemical composition of the sea urchin Paracentrotus lividus from the Golf of Tunis (Tunisia) were studied between September 2003 and August 2004. The highest gonad indices occurred in March (16.71%). The spawning period occurred between April and July and resulted in a fall in gonad indices to low level (7.12 ± 0.12%). Protein constituted the main component of the gonad, and lipid and carbohydrate were found at appreciable amounts. Consistent with the gonad cycle, sea urchin biochemical components showed clear seasonal variation with a significant decrease during the spawning period. The polyunsaturated fatty acid (PUFA) group was found at high level (40% of the total fatty acids). Of the PUFA group, eicosapentaenoic (C20:5 n−3) and eicosatetraenoic (C20:4 n−3) were the most abundant gonadal lipids. The level of PUFA was significantly affected by temperature variation showing an increase during the cold months and a decrease in the hot months.http://dx.doi.org/10.1100/2012/815935 |
| spellingShingle | Soumaya Arafa Moncef Chouaibi Saloua Sadok Amor El Abed The Influence of Season on the Gonad Index and Biochemical Composition of the Sea Urchin Paracentrotus lividus from the Golf of Tunis The Scientific World Journal |
| title | The Influence of Season on the Gonad Index and Biochemical
Composition of the Sea Urchin Paracentrotus lividus from the Golf
of Tunis |
| title_full | The Influence of Season on the Gonad Index and Biochemical
Composition of the Sea Urchin Paracentrotus lividus from the Golf
of Tunis |
| title_fullStr | The Influence of Season on the Gonad Index and Biochemical
Composition of the Sea Urchin Paracentrotus lividus from the Golf
of Tunis |
| title_full_unstemmed | The Influence of Season on the Gonad Index and Biochemical
Composition of the Sea Urchin Paracentrotus lividus from the Golf
of Tunis |
| title_short | The Influence of Season on the Gonad Index and Biochemical
Composition of the Sea Urchin Paracentrotus lividus from the Golf
of Tunis |
| title_sort | influence of season on the gonad index and biochemical composition of the sea urchin paracentrotus lividus from the golf of tunis |
| url | http://dx.doi.org/10.1100/2012/815935 |
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