Marine green alga Cladophora aokii Yamada and its epiphytes from Yinggehai, Hainan, China: morphological taxonomy, forma
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Marine green alga Cladophora aokii Yamada and its epiphytes from Yinggehai, Hainan, China: morphological taxonomy, formation and analysis of its environmental adaption DING Lanping1, 2, DAI Yue1, 2, HUANG Bingxin1, 2*, LI Yongmei1, 2, LIU Rui1, 2, DENG Shaoyang1, 2 1 College of Life Sciences, Tianjin Normal University, Tianjin 300387, China 2 Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin 300387, China
Received 30 June 2017; accepted 6 February 2018 © Chinese Society for Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2018
Abstract
Based on specimens collected in Yinggehai, Hainan, China from 2013 to 2016, a stable epiphytic taxon is found on the surface of the individual of marine green alga Cladophora aokii Yamada. According to the morphological characteristics, the taxonomy of Cl. aokii and its epiphytes is carried out. There are some epiphytes attached on Cl. aokii Yamada including Cl. fascicularis (Mertens ex C. Agardh) Kützing, Chaetomorpha pachynema (Montagne) Kützing, Ceramium camouii Dawson, Licmophora abbreviata Agardh, Lyngbya sp. and Chattonella sp.. The formation of the individual of Cl. aokii is dissected and explained, which can help to analyze the adaption in details among this species, its epiphytes and native marine environment. The results reveal the marine macroepiphytic taxonomy in Hainan, China, and preliminarily explain the adaptive relationship between macroalgae and environment. Key words: Hainan, Yinggehai, Cladophoraceae, morphological taxonomy, growth pattern, environmental adaption Citation: Ding Lanping, Dai Yue, Huang Bingxin, Li Yongmei, Liu Rui, Deng Shaoyang. 2018. Marine green alga Cladophora aokii Yamada and its epiphytes from Yinggehai, Hainan, China: morphological taxonomy, formation and analysis of its environmental adaption. Acta Oceanologica Sinica, 37(10): 40–45, doi: 10.1007/s13131-018-1299-9
1 Introduction The marine green algae of family Cladophoraceae have importantly potential economic/environmental values. They can be served as the natural food of marine animals Gammarus aequicauda and Haminoea callidegenita (Zhang et al., 2014), and effective scavenger of the nutrients such as N, P, benzenes and heavy metals (Fan et al., 2010; Cao et al., 2010; Cong et al., 2014). They can also be used for sewage treatment (Xie et al., 2016), preparing feed yeast for fermentation (Yang et al., 2013a) and production of bioethanol (Yang et al., 2013b). In aquaculture, the green algae can not only bring some economic value (Xie et al., 2008; Wang, 2015) but detriment. The bad water quality is caused by the corruption and decomposition of the plants (Gao et al., 2013). Their proliferation by increasing biomass also brings economic losses to the aquaculture industry (Lapointe et al., 2011). Family Cladophoraceae belongs to Chlorophyta, Cladophorales. Its marine species can be mainly divided into three genera, i.e., Chaetomorpha, Cladophora and Rhizoclonium. They were found to have rich distribution in the coasts of China. In China, Chaetomorpha ar
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