热带海洋学报 ›› 2018, Vol. 37 ›› Issue (6): 85-91.doi: 10.11978/2018019CSTR: 32234.14.2018019

• 海洋生物学 • 上一篇    下一篇

盐度对中国东南沿海两种常见藤壶幼虫发育的影响

曹文浩1(), 严瑾2, 丰美萍3(), 韩帅帅1,4, 林明晴1,4   

  1. 1. 中国科学院热带海洋生物资源与生态重点实验室, 中国科学院南海海洋研究所, 广东 广州 510301
    2. 中国海洋大学环境科学与工程学院, 山东 青岛 266100
    3. 浙江省海洋水产研究所 农业部重点渔场渔业资源科学观测实验站, 浙江 舟山 316021
    4. 中国科学院大学, 北京 100049
  • 收稿日期:2018-02-12 出版日期:2018-11-20 发布日期:2018-12-24
  • 作者简介:

    作者简介:曹文浩(1981—), 男, 工程师, 主要从事海洋污损生物与防除研究。E-mail: caowh@scsio.ac.cn

  • 基金资助:
    浙江省科技厅科技计划项目(2017F50017);广东省海洋和渔业发展专项(A201701C06)

Effects of salinity on larval development of two common barnacles from the southeast coast of China

Wenhao CAO1(), Jin YAN2, Meiping FENG3(), Shuaishuai HAN1,4, Mingqing LIN1,4   

  1. 1. Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
    2. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
    3. Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture, Marine and Fisheries Research Institute, Zhoushan 316021, China
    4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-02-12 Online:2018-11-20 Published:2018-12-24
  • Supported by:
    Science Technology Department of Zhejiang Province Program (2017F50017);Promotion Program for Guangdong Provincial Ocean and Fishery Technology (A201701C06)

摘要:

网纹藤壶Amphibalanus reticulatus和鳞笠藤壶Tetraclita squamosa squamosa是我国东南沿海两种常见的海洋污损生物种类, 在海洋生态系统中占有重要地位。探讨这两种藤壶的幼虫发育与盐度的关系有助于丰富和发展海洋生物学知识, 并为海洋污损生物防除相关工作的开展提供数据资料。研究探讨了网纹藤壶和鳞笠藤壶无节幼虫在盐度为6‰、12‰、18‰、24‰、30‰(对照组)和36‰的培养条件下的发育状况, 观察记录5天后幼虫的存活率和各期幼虫所占百分比, 采用最小显著差数法进行差异显著性分析。结果表明, 当水体盐度≤18‰时, 会严重阻滞网纹藤壶和鳞笠藤壶幼虫的发育, 甚至导致死亡; 而当盐度≥24‰时, 这2种藤壶幼虫的成活率虽不会随盐度改变发生显著变化, 但盐度为30‰的水体更有利于网纹藤壶幼虫的发育, 而鳞笠藤壶幼虫发育状况受盐度变化的影响不大, 具备更强的耐受能力。

关键词: 网纹藤壶, 鳞笠藤壶, 盐度, 幼虫, 发育

Abstract:

The acorn barnacles Amphibalanus reticulatus and Tetraclita squamosa squamosa are common fouling species off the southeast coast of China, which play an important role in marine ecosystems. Understanding the effects of salinity on larval development of the two common barnacles will increase our knowledge on marine biology and may also provide data useful in the field of marine fouling control. In this study, the nauplius larvae of the barnacles A. reticulatus and T. squamosa squamosa were reared in seawater with salinities of 6‰, 12‰, 18‰, 24‰, 30‰ (Control), and 36‰, respectively. After being cultured for five days, the surviving individuals were counted, and their developmental stages were analyzed. The mean values of larval survival rate and the percentage of larvae at various developmental stages in the control and treatment groups were compared with the Least Significant Difference (LSD) test. The results showed significant negative impacts on larval development and survival of both species when the salinity was equal or less than or equal to 18‰. In the salinities of 6‰, 12‰ and 18‰, larval development was inhibited significantly, even to the point where all larvae died. If the salinity rose to 24‰ or higher, there was no significant difference in the larval survival rates of both barnacle species between the control and treatment groups. The salinity at 30‰ was the optimum for larval development of A. reticulatus. Moreover, the larvae of T. squamosa squamosa had greater tolerance to salinity stress with no significant differences occurred during its larval development among the groups in the salinities of 24‰, 30‰ and 36‰.

Key words: Amphibalanus reticulatus, Tetraclita squamosa squamosa, salinity, larvae, development

中图分类号: 

  • Q958.8