广东海洋大学学报Issue(6)：70-76,7.DOI:10.3969/j.issn.1673-9159.2015.06.013
附着生物对流沙湾喜盐草光合强度的影响
Effects of Epiphyte on Photosynthesis Metabolism Intensity of Halophila ovalis in Liusha Bay
摘要
Abstract
In order to study the inhibition effects of epiphyte on photosynthesis rate of the plant and the seasonal variation in epiphyte biomass and content of Chlorophyll-a, samples from three different coastal zones (far-shore zone, in term of A and middle-shore zone, in term of B and near-shore zone, in term of C) in Liusha Bay in Guangdong from October 2014 to July 2015 are collected. The results showed that there was a prominent seasonal variability of the epiphyte biomass and Chlorophyll-a. The amount of epiphyte biomass and Chlorophyll-a descended seasonally in the following sequence: Spring winter, summer and autumn, with the maxim amount of epiphyte biomass, 0.605 mg/g, and Chlorophyll-a, 0.118 mg/g, in spring, and the minimal amount of epiphyte biomass and Chlorophyll-a in autumn. In addition, the amount of epiphyte biomass at C was slightly higher than that at B and A. And the photosynthesis efficiency ofHalophila ovalis was significantly inhibited by the epiphyte, and the maximum inhibition rate was up to 50.34% in spring, followed by winter and summer with inhibition rates of 47.13% and 37.15% respectively. However, with a low epiphyte biomass in autumn, the photosynthesis rate ofHalophila ovalis was 30.61%. Researches show that the epiphyte biomass can grow and accumulate continuously with the increase of nutrient concentration in water, and in turn accelerate the death ofHalophila ovalis.关键词
海草床/附着生物/喜盐草/光合速率Key words
seagrass bed/epiphyte/Halophila ovalis/photosynthesis rate分类
生物科学引用本文复制引用
李英子,黄翔鹄,朱雪冰,汪锦涛,董帅领..附着生物对流沙湾喜盐草光合强度的影响[J].广东海洋大学学报,2015,(6):70-76,7.基金项目
广东省科技计划项目 （）
