Characteristics of Sexual Maturation in the Seaweed Porphyra pseudolinearis from East Sea, Korea

동해안 긴잎돌김(Porphyra pseudolinearis)의 성성숙기 특성

  • Kim, Young-Dae (Aquaculture Division, East Sea Regional Fisheries Research Institute) ;
  • Kim, Hyung-Geun (Faculty of Marine Bioscience & Technology, Kangnung National University) ;
  • Lee, Ju (Aquaculture Division, East Sea Regional Fisheries Research Institute) ;
  • Hong, Yong-Ki (Department of Biotechnology, Pukyong National University)
  • 김영대 (국립수산과학원 동해수산연구소 증식과) ;
  • 김형근 (강릉대학교 해양생명공학부) ;
  • 이주 (국립수산과학원 동해수산연구소 증식과) ;
  • 홍용기 (부경대학교 생물공학과)
  • Published : 2003.06.01


The seaweed Porphyra pseudolinearis as a dominant species grows at upper of the intertidal zone of the East Sea from October to March. Vegetative cells have not matured during October when observed with naked eye and microscope. In the middle of November, although it didn't distingush between female and male gametophytes by eye, it showed antheridium and carpogonium when observed vertical section under microscope. From early December, It could be distinguished female and male gametophytes clearly. From Feburary it showed shorted length of thalli by release of spermatangia and carposporangia as maturation. At early March, the colar has been decaeded and side of thalli has been melted, completed of release of spermatia. At the end of December, the average length and width of female thalli were 149.9$\pm$5.6mm and 22.2$\pm$2.3mm, respectively. The length and width of male thalli were 149.9$\pm$9.4mm and 20.7$\pm$1.8mm. At the end of January, the average length and width of female thalli were 94.6$\pm$6.4mm and 29.1mm$\pm$5.1, respcetively. The length and width of male thalli were 107.8$\pm$7.3mm and 25.9$\pm$0.9mm. From this period lengths of female and male thalli have already been shortned by the release of spermatia and carpogonia.


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  1. Ecological Study on the Seaweed Porphyra pseudolinearis Originated from the East Sea, Korea vol.14, pp.2, 2004,