English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Hatchery and seed production trials for the Omani endemic abalone Haliotis mariae were  carried out at the  land-based Mirbat Abalone Seed Production Station in Oman between 1999 and 2000. The methods  developed for broodstock conditioning, induction of spawning and fertilization, larval settlement,  and the handling of small juveniles are shown. Abalone collected in the post-monsoon period and  held for 2 months matured faster than those collected before the monsoon and held for 6 months.  Spawning induction of males and females had 63% and 11% success rates respectively, and the  morphology of early larval stages is shown. Survival rates of veliger larvae introduced to  settlement plates ranged from 35.9% to 73.7%, but the survival of post-larvae was low at 0.1% to  3.6%. The high mortality rate was attributed to invasions of filamentous green- and coralline algae  on settlement plates and occurrence of low quantity of diatoms as food. Juveniles reacted best to  2% ethanol as anaesthetic, dropping off culture plates within 4 min and recovering within 17 min.  Cultured abalone reached an average shell length of 52.9 mm over 13 months, which translates to an increment of 4.1 mm.mon-1. The overall conclusion of these preliminary research trials confirms that H. mariae can be cultured successfully in Oman. Further studies on the standardization of the techniques would help in stock enhancement programmes and commercial farming.

Abalone, Haliotis mariae (Wood, 1828), Hatchery and Seed Production Trials in Oman