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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal DOI :
The Korean Society of Phycology
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Volume 13, Issue 3 - Sep 1998
Volume 13, Issue 2 - Jun 1998
Volume 13, Issue 1 - Mar 1998
Volume 13, Issue 4 - 00 1998
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Floristic and Taxonomic Accounts of the Genus Strombomonas (Euglenophyceae) from Korean Fresh Waters
Kim, Jun-Tae ; Boo, Sung-Min ;
ALGAE, volume 13, issue 3, 1998, Pages 275~275
This paper deals with descriptions, illustrations and key to identify eight taxa of the genus Strombomonas collected from 29 sites of Korean fresh waters. Of these, Five taxa are recorded for the first time in Korean euglenoid flora: S. rotunda, S. scabra var. ovata, S. subcurvata, S. verrucosa var. borysthensis, S. verrucosa var. obovata. Three taxa are cosmopolitan, whereas S. napiformis var. brevicollis, S. rotunda, S. subcurvata, S. verrucosa var. borysthensis, S. verrucosa var. obovata are the rare taxa in the world.
Taxonomic Study on the Charophytes in Korea II. Nitella
Choi, Kwang-Chul ; Kim, Young-Hwan ;
ALGAE, volume 13, issue 3, 1998, Pages 283~283
The taxa of the Characeae (Charophyta) in Korea were investigated taxonomically in order to re-evaluate the characteristics of species and to clarify their taxonomic validity. The materials were collected from July 1993 to August 1996 in all regions of Korea including Cheju Island. The herbarium specimens of Prof. D. Choe who studied Korean Characeae in 1960's were also examined for this study. As a result, 13 species and 6 varieties of the genus Nitella (N. acuminata var. capitulifera, N. acuminata var. subglomerata, N. axillaris, N. axilliformis, N. flexilis var. flexilis, N. flexilis var. longifolia, N. furcata, N. gracillima, N. gracilis, N. hyglina, N. imahorii, N. megacarpa var. megacarpa, N. megacarpa var. japonica, N. microcarpa, N. morongii var. spiciformis, N. mucronata var. mucronata, N. mucronata var. koreana, N. orientalis and N. rigida) were recognized. Among them N. imahorii, N. megacarpa var. japonica, and N. rigida are recorded for the first time in Korea during this study. A key to the Korean taxa of these charophytes is provided. The main habitats and the phenological characteristics of the Korean charophytes are described.
Light and Electron Microscope Studies on Lobophora variegata (Lamouroux) Womersley ex Oliveira (Dictyotales, Phaeophyta)
Kaur, Inderdeep ; Kumari, Sunita ;
ALGAE, volume 13, issue 3, 1998, Pages 323~323
The plants of Lobophora variegata (Lamouroux) Womersley ex Oliveira are small, flat, fan-shaped and lobed at maturity. Growth of the plant occurs by means of a series of marginal initials resulting in a thallus composed of three tissues: epidermis, cortex and medulla. The walls of all cell types show a mixture of carboxylated and sulphated polysaccharides whereas the cytoplasm reveals differential distribution of physodes, vacuoles, proteins, polysaccharides and plastids. The tetrasporangia occur in groups and the associated hairs are absent. The present taxonomic status of Lobophora variegata, which had earlier been placed under the genus Dictyota is pointed out with reasonable certainty. The elucidation of asexual and sexual reproduction will provide further evidence of taxonomic status of Lobophora.
Ecological Characteristics of Phytoplankton Community in the Mid- and Downstream of the Han River
Kim, Yong-Jae ; Kim, Myung-Woon ; Kim, Sang-Jong ;
ALGAE, volume 13, issue 3, 1998, Pages 331~331
The ecological characteristics of phytoplankton community was investigated at five stations in the mid- and downstream of the Han River from December, 1995 to November, 1996. This study identified a total of 369 taxa which was composed of 125 genera, 345 species, 26 varieties and 3 forms. Standing crops were ranged from
during the investigation. The dominant species were 11 taxa including Stephanodiscus invisitatus and Stephanodiscus hantzschii f. tenuis. Of these, the first record on the dominant species were Nitzschia palea, N. amphibia, N. fonticola, Cymbella minuta var. silesiaca, Cyclotella pseudostelligera. Stephanodiscus invisitatus and S. hantzschii f. tenuis were main species at St. 1 and St. 3 from December, 1995 to July, 1996 and rapidly decreased in rain season. Aulacoseira ambigua and A. granulata were main species from August, 1996. Nitzschia palea showed high standing crops at St. 4 and 5 from rainy season. Therefore, these stations were eutrophic states during the investigated seasons.
Dynamics of Phytoplankton Community in Lake Chungju
Kim, Jee-Hwan ; Kim, Young-Hwan ; Lee, In-Kyu ;
ALGAE, volume 13, issue 3, 1998, Pages 339~339
Species composition and standing crops of phytoplankton at five stations in Lake Chungju were investigated monthly from January 1993 to December 1994. A total of 175 taxa (38 Cyanophyta, 79 Chlorophyta, 49 Chrysophyta, 3 Pyrrhophyta and 6 Euglenophyta) was identified. Among them, 59 species were found at all the stations, while 45 species were only at a single station. The number of species was most abundant at station 1 in down-stream (127 spp.), and the poorest at station 4 in up-stream station (75 spp.). Number of species, as a whole, showed the highest during summer to mid-autumn and decreased gradually since late autumn until early spring. The standing crops of phytoplankton ranged
, and averaged
in 1993 and
in 1994. The minimum value was recorded in March 1993 (
), and the maximum in September 1994 (
) due to the blue-green algal blooming. Dominant species determined by standing crops were 29 species. They showed a clear seasonal succession in this lake. Diatoms contributed the proportion of standing crops significantly during winter and spring, while blue-green algae and green algae were during summer and autumn. Species diversity index (H') of phytoplankton community on an annual average was 1.52 in 1993 and 1.65 in 1994. The highest value was recorded in June, while the lowest from April to May due to the diatom blooming and during July to September due to the blue-green algal blooming. The species diversity was generally higher at a downstream station than at up- to middle-stream stations.
Diel Patterns of Phytoplankton and Zooplankton Dynamics in Fish Hatchery Ponds
Kim, Jeong-Ha ; O'Flaherty, Larry M. ;
ALGAE, volume 13, issue 3, 1998, Pages 355~355
Diel patterns of phytoplankton and zooplankton dynamics were studied in plastic-line fish hatchery ponds (#3, #4) at the Jake Wolf Memorial Fish Hatchery, Mason County, Illinois, USA. During the 24-hour sampling period, phytoplankton densities inversely coincided with zooplankton densities in both ponds. For the diel pattern, lower densities of phytoplankton were observed in daytime due to differences in densities and composition of the dominant groups of zooplankton, such as cladocerans for Pond 3 and rotifers for Pond 4. In Pond 3, Scenedesmus bijuga was reduced in density by grazing while Cryptomonas erosa increased in density with time due to selective feeding by zooplankters. As expected, dissolved oxygen concentrations were higher in the daytime than at night or early morning. The levels of pH dropped during the same time span and became more basic as temperature decreased and respiration increased with the onset of darkness. Phosphate remained at similar concentrations in both ponds and was not limiting. Nitrate levels were high in Pond 4 due to prior fertilization with liquid inorganic fertilizer.