摘要
通过对儋州湾海草资源全面调查,探讨儋州湾海草资源分布特征及影响因素。结果表明,儋州湾分布海草种类为1科1属1种,即贝克喜盐草,分布总面积约为489 hm^(2),平均覆盖度为8.46%,平均茎枝密度为2327.98 ind./m^(2),平均生物量为1.57 g/m^(2);主要分布于儋州湾里端新英红树林保护区红树林沿岸水域;儋州湾贝克喜盐草的生长主要受到重金属Cu的影响,其次受到水深的影响,且重金属之间呈现极显著正相关,推断是受到附近虾塘养殖废水的排放以及潮汐搬运和迁移的影响;针对儋州湾贝克喜盐草的保护,建议完善红树林自然保护区的功能,将贝克喜盐草增列为保护对象,并加强保护区管理,控制污染源排放及人为干扰。
The distribution characteristics and their influencing factors of the seagrass resources in Danzhou Bay were comprehensively surveyed.The results showed that only one seagrass species,Halophila beccarii Asch,inhabits Danzhou Bay.The total distribution area is about 489 hm^(2),with an average coverage of 8.46%,an average shoot density of 2327.98 ind./m^(2),and an average biomass of 1.57 g/m^(2).The seagrass mainly distributes in the coastal waters around Xinying Mangrove Reserve at the inner end of the bay.The growth of H.beccarii in Danzhou Bay is mainly affected by the heavy metal Cu,and then by water depth.There is a very significant positive correlation among heavy metals.As were inferred,these influences may come from the sewage discharge of nearby shrimp ponds and tidal transport and migration.Aiming to protect H.beccarii in Danzhou Bay,we propose to improve the function of mangrove nature reserve by taking it as the protection object,strengthen the management of protected areas,and control the emission of pollution sources and human interference.
作者
郭晋宇
耿晓晓
尹雷
陈石泉
蔡泽富
吴钟解
王道儒
GUO Jinyu;GENG Xiaoxiao;YIN Lei;CHEN Shiquan;CAI Zefu;WU Zhongjie;WANG Daoru(Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education,Hainan Tropical Ocean University,Sanya,Hainan 572022,China;Hainan Academy of Ocean and Fisheries Sciences,Haikou 570125,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2023年第2期123-132,共10页
Transactions of Oceanology and Limnology
基金
国家自然基金项目(42166006)
国家重点研发计划项目(2017YFC0506104,2019YFD0900905)
海南省重点研发资助项目(ZDYF2020202)
海南省自然基金高层次人才项目(42RC662)。
关键词
海南
儋州湾
贝克喜盐草
分布特征
影响因素
Hainan
Danzhou bay
Halophila beccarii
distribution characteristics
influencing factor
