王惠,谢恩义,徐日升,徐聪

• 1:广东海洋大学水产学院
• 2:广东省藻类养殖及应用工程技术研究中心

摘要(Abstract)：

【目的】探究硇洲马尾藻(Sargassum naozhouense)幼孢子体附着的选择性及原生态位点固着人工藻礁对马尾藻海藻资源恢复效果。【方法】选用混凝土、黄泥砖、牡蛎壳、聚丙烯板、橡皮条、沥青等6种废弃物材质对硇洲马尾藻幼孢子体附着效果进行比较;将硇洲马尾藻于徐闻南山进行原生态位点投放,周年观察比较人工藻礁与自然藻礁生长差异,探究硇洲马尾藻资源恢复效果。【结果】(1)不同材质藻礁对硇洲马尾藻幼孢子体附着差异显著,附着效果依次为混凝土>黄泥砖>牡蛎壳>聚丙烯板>橡皮条,沥青完全没有幼孢子附着。(2)当年人工藻礁苗有性生殖苗较自然生态苗生长慢,第二年假根再生苗生长与自然苗生长无显著性差异。(3)人工藻礁苗成活率为29.2%,此后不出现消退死亡,并以假根再生维持种群的繁衍。【结论】混凝土是马尾藻原生态藻床恢复较理想的人工附着基,黄泥砖、牡蛎壳、聚丙烯板等废弃物也可用于天然硇洲马尾藻以及室内有性苗源的附着基。假根再生是马尾藻种群繁衍的主要方式,利用有性繁殖的幼孢子体附着于混凝土块上进行硇洲马尾藻原生态位点投放是短时间增加马尾藻资源的有效措施,可为硇洲马尾藻海藻资源恢复提供可行的方法。

关键词(KeyWords)： 硇洲马尾藻;幼孢子体附着;人工藻礁;海藻资源;原生态恢复

Abstract:

Keywords:

基金项目(Foundation): 广东省科技厅科技计划项目(2017A030303078)

作者(Author): 王惠,谢恩义,徐日升,徐聪

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