Abstract
The maturation pattern of sexual reproduction in Hizikia fusiformis (Harvey) Okamura (Sargassaceae, Phaeaophyta) was examined in 2003 at Yunao Bay, Nanao Island, Shantou, China. Maturation began in mid-April (seawater temperature 19–21 ∘C), reached the peak in mid-May (maturation rate ca. 70%, and seawater temperature 23.5–25 ∘C) and finished in late-June (seawater temperature 27.5–30 ∘C). The Hizikia plants continued to gain the length from the beginning of maturation season to reach a maximum mean length of 34.8 cm in mid-May, after which the mean length was reduced drastically due to the senescence and rupture of the larger plants in size. The major portion of the mature plants belonged to the larger plants between April and May, but to the smaller ones in June. It is suggested that the plant must achieve a critical size before reproductive maturation occurred. There was a positive relationship between the number of receptacles (NR), as well as the reproductive allocation (RA), and the plant size of Hizikia population, with the recorded maximum values of NR and RA being 1220 and 64.3% respectively, for a single plant.
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Zou, D., Gao, K. & Ruan, Z. Seasonal Pattern of Reproduction Of Hizikia Fusiformis (Sargassaceae, Phaeophyta) from Nanao Island, Shantou, China. J Appl Phycol 18, 195–201 (2006). https://doi.org/10.1007/s10811-006-9097-8
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DOI: https://doi.org/10.1007/s10811-006-9097-8