Journal of Applied Phycology

, Volume 18, Issue 3, pp 551–556

Phenology of Chondrus ocellatus in Cheongsapo Near Busan, Korea

Article

DOI: 10.1007/s10811-006-9070-6

Cite this article as:
Kim, Y.S., Choi, H.G. & Nam, K.W. J Appl Phycol (2006) 18: 551. doi:10.1007/s10811-006-9070-6

Abstract

The reproductive phenology of Chondrus ocellatus and the effects of temperature and light on its growth were examined in Cheongsapo near Busan, Korea, from September 1994 to August 1995. The vegetative plants dominated over the year, with a peak occurrence in January. Gameto- and tetrasporophytes were most abundant in November and August. All vegetative and reproductive plants had a peak both in length and weight in October, when seawater temperature was highest (24°C). In laboratory culture, the maximum relative growth rate (RGR) of 2.94% day−1 was obtained at 20°C and 100 μmol photons m−2 s−1, whereas the lowest value was recorded at 25°C and 100 μmol photons m−2 s−1 in a 12: 12 h LD photoperiod regime. Among the three photoperiod regimes (8:16 h, 12:12 h, 16:8 h LD) tested, there was evidence of a higher RGR in the 12:12 h LD cycle. This result suggests that the growth and reproduction of C. ocellatus are correlated with the seawater temperature based on laboratory culture and field observations.

Keywords

Chondrus ocellatus reproductive phenology Korea growth 

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.School of Marine Life ScienceKunsan National UniversityKusanKorea
  2. 2.Faculty of Life ScienceWonkwang UniversityIksanKorea
  3. 3.Department of Marine BiologyPukyong National UniversityNam-guKorea