Monitoring of reef associated and pelagic fish communities on Australia's first purpose built offshore artificial reef
Monitoring of reef associated and pelagic fish communities on Australia's first purpose built offshore artificial reef
复制标题
DOI：
10.1093/icesjms/fsw133
复制
发表时间：
2017-01-01
影响因子：
3.3
通讯作者：
Lowry, Michael B.
中科院分区：
文献类型：
--
作者：
Becker, Alistair;Taylor, Matthew D.;Lowry, Michael B.
人工鱼礁现已成为提高世界各地渔业综合方法的一部分。一个负责任的人工鱼礁部署方法要求在任何人工鱼礁被放置在野外之前制定明确的目标，然后进行后续监测，以评估这些目标是否正在实现。在这项研究中，如果悉尼附近的人工鱼礁是通过建立一个复杂的鱼类组合，以评估其提供优质的捕鱼机会的目标，设计了一个为期4年的监测计划。该计划研究了与珊瑚礁有关的鱼类和中上层鱼类对部署一个专门建造的近海珊瑚礁的反应，相对于控制珊瑚礁。在投放人工鱼礁后立即观察到鱼类，但在整个监测期间，人工鱼礁的鱼类组合与三个天然控制鱼礁的鱼类组合仍然不同。此外，人工鱼礁显示年际变化与演替过程，这是不明显的天然礁。鱼体长度数据显示，人工鱼礁为多个品种的幼鱼和成鱼提供资源。这项研究表明，人工鱼礁可以为各种鱼类提供栖息地，但其组合不太可能模仿天然鱼礁上的组合。我们还表明，需要更长期的监测期，覆盖多年，以获得对鱼类对珊瑚礁部署的反应的深入了解。这些信息可用于了解未来人工鱼礁部署的好处和局限性。
Artificial reefs now form part of an integrated approach to enhance fisheries around the world. A responsible approach to artificial reef deployment calls for clear, well defined goals prior to any reef being placed in the field, followed by subsequent monitoring to assess whether these goals are being achieved. In this study, to evaluate if an artificial reef off Sydney was meeting its goal of providing quality fishing opportunities through the establishment of a complex fish assemblage, a 4-year monitoring program was designed. This program examined the response of reef-associated and pelagic fishes to the deployment of a purpose built offshore reef, relative to control reefs. Fish were observed immediately following deployment, but the artificial reef fish assemblage remained distinct from the three natural control reefs throughout the monitoring period. Also, the artificial reef displayed inter-annual variability associated with successional processes, which was not evident on the natural reefs. Fish length data indicated that the artificial reef was providing resources for both juvenile and adults of a number of species. This study demonstrates artificial reefs can provide habitats for a diverse group of fish, but the assemblages are unlikely to mimic those on natural reefs. We have also shown that longer term monitoring periods, covering multiple years are required to gain a robust understanding of the response of fish to reef deployment. This information can be used to understand the benefits and limitations of future artificial reef deployments.