Assessment of blacklip rock oyster, Saccostrea lineage J, spat growth and survival in recirculating upweller and downweller nursery systems

IF 0.8 4区生物学 Q3 ZOOLOGY

Molluscan Research Pub Date : 2023-04-03 DOI:10.1080/13235818.2023.2217677

S. Nowland, B. Roberts

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引用次数: 0

Abstract

ABSTRACT The blacklip rock oyster, Saccostrea lineage J, has the potential to support new aquaculture developments throughout its range in the tropical Indo-Pacific region, but lack of research investment in understanding basic biology has been a key failure point in the past. This study assessed Saccostrea lineage J spat growth and survival in downweller and upweller nursery systems, with the aim of establishing baseline biological information and evaluating spat performance to support commercialisation efforts. Downweller and upweller nursery systems were similarly effective at rearing spat, with mean dorsoventral measurement in both systems reaching a 5 mm deployment size at 59 days post hatch. Growth rates reported in this study of 0.19 and 0.20 mm day−1 in the downweller and upweller, respectively, are comparable to other hatchery-produced tropical and subtropical bivalve spat. Based on the results of this study, it is recommended that spat be held in nurseries for approximately two months to reach a 5 mm deployment size. The information obtained in this study is the first documentation of Saccostrea lineage J spat growth and survival, and the methods used provide a basis for commercial production of this species.

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黑唇岩牡蛎，Saccotrea谱系J，在循环上下育苗系统中的吐口水生长和存活评估

摘要黑唇岩牡蛎，Saccostrea谱系J，有潜力支持热带印度-太平洋地区新的水产养殖发展，但缺乏对基础生物学的研究投资一直是过去的一个关键失败点。本研究评估了Saccostrea谱系J唾沫在下向和上向苗圃系统中的生长和存活，目的是建立基线生物信息并评估唾沫的表现，以支持商业化努力。下行式和上行式育婴系统在饲养吐口水方面同样有效，两个系统的平均背腔测量值均达到5 孵化后59天部署尺寸为mm。本研究报告的增长率分别为0.19和0.20 mm day−1，与其他孵化场生产的热带和亚热带双壳类幼体相当。根据这项研究的结果，建议在托儿所进行大约两个月的吐口水，以达到5 mm部署尺寸。本研究中获得的信息是首次记录Saccotrea谱系J的生长和存活，所使用的方法为该物种的商业生产提供了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molluscan Research 生物-动物学

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

>12 weeks

期刊介绍： Molluscan Research is an international journal for the publication of authoritative papers and review articles on all aspects of molluscan research, including biology, systematics, morphology, physiology, ecology, conservation, biogeography, genetics, molecular biology and palaeontology. While the scope of the journal is worldwide, there is emphasis on studies relating to Australasia and the Indo-west Pacific, including East and South East Asia. The journal’s scope includes revisionary papers, monographs, reviews, theoretical papers and briefer communications. Monographic studies of up to 73 printed pages may also be considered. The journal has been published since 1957 (as the Journal of the Malacological Society of Australia until 1993). It is free to members of the Malacological Society of Australasia and the Society for the Study of Molluscan Diversity.