@article{Al-Rashdi_Iwao_2008, title={Abalone, Haliotis mariae (Wood, 1828), Hatchery and Seed Production Trials in Oman}, volume={13}, url={https://journals.squ.edu.om/index.php/jams/article/view/680}, abstractNote={<div><span style="color: #000000; font-family: garamond, serif; font-size: large;">Hatchery and seed production trials for the Omani endemic abalone Haliotis mariae were </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">carried out at the </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">land-based Mirbat Abalone Seed Production Station in Oman between 1999 and 2000. The methods </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">developed for broodstock conditioning, induction of spawning and fertilization, larval settlement, </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">and the handling of small juveniles are shown. Abalone collected in the post-monsoon period and </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">held for 2 months matured faster than those collected before the monsoon and held for 6 months. </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">Spawning induction of males and females had 63% and 11% success rates respectively, and the </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">morphology of early larval stages is shown. Survival rates of veliger larvae introduced to </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">settlement plates ranged from 35.9% to 73.7%, but the survival of post-larvae was low at 0.1% to </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">3.6%. The high mortality rate was attributed to invasions of filamentous green- and coralline algae </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">on settlement plates and occurrence of low quantity of diatoms as food. Juveniles reacted best to </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">2% ethanol as anaesthetic, dropping off culture plates within 4 min and recovering within 17 min. </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">Cultured abalone reached an average shell length of 52.9 mm over 13 months, which translates to an </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">increment of 4.1 mm.mon-1. The overall conclusion of these preliminary research trials confirms  </span><span style="color: #000000; font-family: garamond, serif; font-size: large;">that H. mariae can be cultured successfully in Oman. Further studies on the standardization of the </span><span style="font-family: garamond, serif; font-size: large;">techniques would help in stock enhancement programmes and commercial farming.</span></div><div> </div>}, journal={Journal of Agricultural and Marine Sciences [JAMS]}, author={Al-Rashdi, Khalfan M. and Iwao, Tsueno}, year={2008}, month={Jan.}, pages={53–63} }