Population dynamics and fecundity estimates of Long-spined Black Sea Urchin Diadema savignyi (Audouin, 1890) from the Red Sea, Saudi Arabia

• DOI: 10.1016/j.sjbs.2022.103395
• Publication Date: 2022-07-26T00:14:10Z
• Authors: Mohammed Othman A...; Mohammad Habibur ...
• Keywords: 0301 basic medicine; 03 medical and health sciences; Original Article

Sea Urchin is not only the crucial keystone species for coral reef restoration but also it has antimicrobial and anti-cancer activities. This study undertaken to focus on length weight relationship, size fecundity distribution estimation of from long-spined Urchin, Diadema savignyi at coastal water middle Red Sea, Saudi Arabia. A total 633 specimen D. been collected Obhur Creak during sampling time. In each species, (TL) measured as a TW = 11.908 × 0.9995 (R2 0.8975) through linear regression graph digital slide callipers and, individual body estimated by balance. The natural fishing mortality 2.02/yr 0.19/yr respectively documented area. Asymptotic value (L∞) (cm) were 7.35 where growth coefficient (K) was 0.67 monthly length-frequency numeric data using FAO FISAT II software generating estimating population parameters age. However, recruitment pattern observed be increased gradually with maximum peak between months September October 2021. Therefore, varied 49,226 ova (total 3.1 cm) 466,133 6.8). As result, analysis relationship absolute (F) (TL), drained (DW), revealed model positive significant p < 0.05. first approach detailed dynamic ecologically economically important tropical long spine sea urchin (D. savignyi) endemic region. result so far obtained this research would greatly useful towards understanding structure patterns that will undoubtedly help us develop captive breeding, seed production, culture protocols, conservation strategies isolation bioactive compounds high-valued incommensurate national international perspectives.