Abstract

A great portion of the marginal zone in Lake Gocheonam was covered with reed plants. Algae attached to the reed stems were exclusively composed of diatoms. Sixty-six species of diatoms were encountered in a floral survey. The important species were Nitzschia liebetruthii Rabh., Nitzschia acicularis (Ku¨tz.) W. Sm., Navicula gregaria Donk., Cocconeis placentula var. lineata (Ehr.) V.H. etc. Among the diatom flora, six species - Navicula nivalis Ehr., Navicula recens Lange-B., Nitzschia angustatula Lange-B., Nitzschia compressa (Bail.) Boyer, Nitzschia lanceola var. minutula Grin. and Surirella crumena Bre´b. - were recorded in Korea for the first times. Life forms of the reed-attached diatoms were simply prostrate. The biomass of epiphytic algae ranged from 0.05㎍ chl-$\alpha$ cm$^{-2}$ to 2.32$\mu$g chl-$\alpha$ cm$^{-2}$. The algal biomass of dead stems was higher than that of the living stems, and their flora were rich. The algal biomass reached a maximum in the spring after the death of the reed plants. The reed plants exhibited rich diatom flora and significantly high algal biomass on their stems to have taxonomical and ecological importance in the freshwater.

주제어

#biofilms   #epiphytic diatoms   #estuary lake   #reed plant  

참고문헌 (16)

1. AHPA, AWWA and WPCF. 1981. Standard methods for the examination of water and wastewater. 15th edition. pp. 966-969 
2. Cho K.J. 1991. Spatial and temporal distribution of phytoplanktonic and periphytic diatom assemblages of Naktong River Estuary. Korean J. Phycol. 6: 47-53 
3. Im B.S. and Kim H.S. 2000. Vegetation and primary production of Lake Gocheonam. The Report on Natural Ecosystem Investigation in Lake Gocheonam. The Ministry of Environment, Korea. pp. 9-29 
4. Jung M.K., Lee O.H. and Cho K.J. 2004. Photosynthesis-irradiance relationship and primary production of phytoplankton in Lake Gocheonam. Korean J. Environ. BioI. 22: (in press) 
5. Lorenzen C. 1967. Determination of chlorophyll and pheo-pigments: Spectrophotometric equation. Limnol. Oceanogr. 12: 343-346 
6. Krammer, K and Lange-Bertalot H. 1986. Bacillariophyceae. 1. Teil: Naviculaceae. Susswasserflora von Mitteleuropa. Band 2/1. VEBGustav Fisher Verlag, Jena. 876 pp 
7. Krammer, K and Lange-Bertalot H. 1988. Bacillariophyceae. 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. Siisswasserflora von Mitteleuropa. Band 2/2. VEB Gustav Fisher Verlag, Jena. 596 pp 
8. Krammer, K and Lange-Bertalot H. 1991a. Bacillariophyceae. 3. Teil: Centrales, Fragilariaceae, Eunotiaceae. Susswasserflora von Mitteleuropa. Band 2/3. VEB Gustav Fisher Verlag, Jena. 576 pp 
9. Krammer, K and Lange-Bertalot H. 1991b. Bacillariophyceae. 4. Teil: Achnanthaceae, Kritische Ergaenzungen zu Navicula (Lineolatae) und Gomphonema Gesamtliteraturverzeichnis. Susswasserflora von Mitteleuropa. Band 2/4. VEB Gustav Fisher Verlag, lena. 437 pp 
10. Kurata A. 1983. Nutrient removal by epiphytic microorganisms of Phragmites communis. In: Wetzel R.G. (ed.), Periphyton of freshwater ecosystems. Proceedings of the first international workshop on periphyton of freshwater ecosystems held in Vaxjo, Sweden, 14-17 September 1982. Developments in hydrobiology 17, Dr W. Junk Publishers, the Hague. pp. 305-310 
11. Lee K., Choi J.K. and Lee J.H. 1995. Taxonomic studies on diatoms in Korea. II. Check-list. Korean J. Phycol. 10 (Supplement): 13-89 
12. Meulemans J.T. and Heinis H. 1983. Bomass and production of periphyton attached to the dead reed stems in Lake Maarsseveen. In: Wetzel RG. (ed.), Periphyton of freshwater ecosystems. Proceedings of the first international workshop on periphyton of freshwater ecosystems held in Vaxjo, Sweden, 14-17 September 1982. Developments in hydrobiology 17, Dr W. Junk Publishers, the Hague. pp. 170-173 
13. Roos P.J. and Meulemans J.T. 1987. Under water light regime in a reedstand - short-term, daily and seasonal. Arch. Hydrobiol. 111: 161-169 
14. Wetzel RG. 1983. Attached algal-substrata interactions: facts or myth, and when and how? In: Wetzel RG. (ed.), Periphyton of freshwater ecosystems. Proceedings of the first international workshop on periphyton of freshwater ecosystems held in Vaxjo, Sweden, 14-17 September 1982. Developments in hydrobiology 17, Dr W. Junk Publishers, the Hague. pp. 208-215 
15. Wetzel RG. 1964. A comparative study of the primary productivity of higher aquatic plants, periphyton and phytoplankton in a large, shallow lake. Gesamten Hydrobiol. 49: 1-61 
16. Wetzel RG. 1996. Benthic algae and nutrient cycling in lenthic freshwater ecosystems. Periphyton of freshwater ecosystems. In: Stevenson R.J., Bothwell M.L. and Lowe R.L. (eds), Algal ecology: freshwater benthic ecosystems. Academic Press, Inc. pp. 641-667 

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