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2015/01/09 14:00 Prof. Hsing-Juh Lin（Department of Life Sciences, NCHU）
Seminar
Poster： ╱ Post date：2015-01-07NCU IHOS Seminar Announcemnet
Speaker：Prof. Hsing-Juh Lin
Place：S-325, Science Building 1
Abstract：
Title：Why Taoyuan algal reefs deserve to be protected?
Speaker：Prof. Hsing-Juh Lin
Department of Life Sciences, NCHU
Time：01/09（Fri.）14：00
Place：S-325, Science Building 1
Abstract：
Research on the biodiversity of algal reefs is lacking globally. In order to quantify the biodiversity the algal reefs along the coast of Taoyuan, four sites were chosen for sampling, including Sinwu River (SW), Datan Power Plant (DT), Guanyin Beach (GY) and Shulinzih (SL). At each site, two transects were surveyed for the distribution and abundance of algae, epifauna, fish and birds in the four seasons from September 2012 to June 2013. In addition, a piece of reef (1000 cm3) was sampled at different elevation position (high, medium, and low) along the two transects at each site for quantifying infaunal abundance. The coverage of macroalgae was higher at SW(15.78%-34.24%) and DT(13.76%-43.88%) than that at GY(0%-0.53%) and SL(0%). The species richness of epifauna, infauna, fish, and birds was highest at DT and lowest at SL, indicating the degradation of algal reefs at SL. By using dissolved oxygen microelectrode, the production of crustose coralline algae was estimated to be 64.6 g C m-2 yr-1, which is comparable to those in the temperate waters. Compared to the previous studies in the algal reefs, our results comprised more taxa and the density was much higher, indicating that the previous studies underestimated the biodiversity of algal reefs. In addition, not many species overlapped among these studies, suggesting that some species were still unfound yet. Compared with other studies on other habitats along the coast of western Taiwan, the species and density of algal reefs differed greatly from others. The animal density was 5 times that on the Kaomei Wetland and 8 times that on the Hsiangshan Wetland. In particular, the biodiversity of algae, Cnidarians, molluscs, arthropods, and echinoderms was higher, but the species richness of annelids was lower. The density of annelids and arthropods was also higher. These indicate that the biodiversity and uniqueness of algal reefs and the need of urgent conservation.
Last modification time：2015-01-08 PM 2:37
