Population Index and Growth Estimation Based On SLW Index of the Sea Cucumber (Holothuria arguinensis Koehler & Vaney, 1906) in the Moroccan Waters of the Atlantic Coast

The population structure and growth parameters of the commercially important species of sea cucumber Holothuria arguinensis  in Moroccan waters was studied, being the first study reported along these waters. We collected 455 individuals of  H. arguinensis  at Skhirat, and 209 at Souiria K’dima, Nort...

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Bibliographic Details
Published in:Thalassas : revista de ciencias del mar 2022-04, Vol.38 (1), p.535-551
Main Authors: HADDI, Imane, BENZHA, Fatiha, MAANAN, Mehdi, SIDDIQUE, Saima, RHINANE, Hassan, CHAROUKI, Najib, ZIDANE, Hakima
Format: Article
Language:English
Subjects:
Allometry
Aquaculture
Biometrics
Body wall
Coastal Sciences
Development projects
Earth and Environmental Science
Earth Sciences
Elasticity
Fish & Wildlife Biology & Management
Fisheries
Fisheries development
Fisheries management
Fishery development
Freshwater & Marine Ecology
Growth
Holothuria arguinensis
Interspecific relationships
Marine & Freshwater Sciences
Marine invertebrates
Marine resources
Morphometry
Natural mortality
Oceanography
Original Article
Population
Population structure
Predation
Stock exchanges
Sustainability management
Vegetables
Width
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Summary:The population structure and growth parameters of the commercially important species of sea cucumber Holothuria arguinensis  in Moroccan waters was studied, being the first study reported along these waters. We collected 455 individuals of  H. arguinensis  at Skhirat, and 209 at Souiria K’dima, Northern and center Atlantic of Morocco. To avoid deviation from the accurate measurements in sea cucumber related to statistical estimation because of the elasticity of the body wall, we used a compound index which merged length and width to give the SLW index (square root of length multiplied by width) and its related modifications such as Le (recalculated length) were assessed and different morphometric relationships were also explored, the results indicate that recalculated length appears to be more valuable and helpful in obtaining an accurate length of sea cucumber. The student’s t-test revealed that  H. arguinensis has allometric growth (b ≠ 1 or b ≠ 3, P 
ISSN:0212-5919
2366-1674
DOI:10.1007/s41208-021-00362-9