지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Thirty populations of Chondrus crispus Stackhouse from Nova Scotia were collected during the years 1993 to 2011. Taken from estuaries, wave exposed open coasts, high intertidal rock pools and shallow subtidal habitats, the populations were evaluated for relative abundance of tetrasporophytic and gametophytic life history phases. Over 2,800 thalli were characterized using the resorcinol-acetal test to distinguish the kappa- and lambda-carrageenan containing fronds of gametophytes and tetrasporophytes, respectively. These populations had $77{\pm}5%$ gametophytes (mean ${\pm}95%$ confidence interval), with most populations having gametophyte : sporophyte ratios ranging from 2 : 1 to 9 : 1. No population had a dominance of tetrasporophytes, although two populations had 1 : 1 ratios. A meta-analysis of our data along with previously published accounts showed no significant changes in gametophyte dominance with respect to hypothesized gradients of wave exposure, salinity, or water depth. Significant changes occurred in ratios at five sites where replicate sampling occurred in different years. We conclude that C. crispus in Maritime Canada has a natural ratio of 3 : 1 or greater in stable conditions, and that lower ratios represent recovery from disturbance in which bare substratum is created that is subsequently colonized by carpospores from remaining gametophytic thalli.
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참고문헌 (54)
참고문헌 신청
Bellgrove, A. / 2008 / Variation in gametophyte dominance in populations of Chondrus verrucosus (Gigartinaceae, Rhodophyta) / Phycol. Res 56:246~254
Bhattacharya, D. / 1984 / The demography of Chondrus crispus Stackhouse
Bhattacharya, D. / 1985 / The demography of fronds of Chondrus crispus Stackhouse / J. Exp. Mar. Biol. Ecol 91:217~231
Bird, C. J. / 1992 / Seaweed flora of the maritimes. 1. Rhodophyta, the red algae / Biopress :177
Bird, C. J. / 1993 / Systematics of economically important marine algae: a Canadian perspective / Can. J. Bot 71:361~369
Bhattacharya, D. / 1984 / The demography of Chondrus crispus Stackhouse
Bhattacharya, D. / 1985 / The demography of fronds of Chondrus crispus Stackhouse / J. Exp. Mar. Biol. Ecol 91:217~231
Bird, C. J. / 1992 / Seaweed flora of the maritimes. 1. Rhodophyta, the red algae / Biopress :177
Bird, C. J. / 1993 / Systematics of economically important marine algae: a Canadian perspective / Can. J. Bot 71:361~369
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