Relationship between Age and Morphology of Ecklonia cava (Laminariales, Phaeophyta) Sporophytes Growing off Tei, Kochi Prefecture, Japan
Relationship between Age and Morphology of Ecklonia cava (Laminariales, Phaeophyta) Sporophytes Growing off Tei, Kochi Prefecture, Japan
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日本高知县地町的 Ecklonia cava（海带目、褐藻门）孢子体的年龄与形态之间的关系
DOI：
10.11233/aquaculturesci1953.50.163
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Ohno
中科院分区：
文献类型：
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作者：
Y. Serisawa;Toshiyuki Ueshima;K. Matsuyama;S. Taino;Z. Imoto;M. Ohno
1996年对日本南部土佐湾定海沿岸的海带孢子体进行了季节性研究。根据生长轮的测量，确定了少量的3年生孢子体。调查期间各年龄组菌柄长和直径的平均值分别为：0龄7.2-18.4 cm和4.6-7.5 mm; 1龄3.4-12.6 cm和7.7-10.2 mm; 2龄5.9-13.7 cm和10.3-13.4 mm。各年龄组的一级叶长、一级叶宽、小叶片数和最长小叶片长0龄分别为18.5- 32.8cm、4.6-6.2cm、9-21片和10.6- 23.8cm; 1岁组分别为22.0-39.1 cm、5.5-6.9 cm、14-27片、20.1-34.9 cm; 2岁组分别为9.6-25.6 cm、5.8-8.1 cm、17-30片、32.5-40.3 cm。因此，除初级叶片长度外，所有生物特征参数均随年龄增加，但这些值与各年龄组重叠，并且它们没有明确分开。
The relationship between age and morphology of Ecklonia cava Kjellman (Laminariales, Phaeophyta) sporophytes were studied seasonally in 1996 in a population off the Tei coast in Tosa Bay, southern Japan. Based on measurement of the growth rings, a small number of 3-year-old sporophytes were confi rmed. The mean values of stipe length and diameter of each age group during the investigation period was follows; 7.2-18.4 cm and 4.6-7.5 mm in the 0-year-olds; 3.4-12.6 cm and 7.7-10.2 mm in the 1-year-olds; 5.9-13.7 cm and 10.3-13.4 mm in the 2-year-olds. Primary blade length, primary blade width, number of bladelets and longest bladelet length of each age group was as follows; 18.5-32.8 cm, 4.6-6.2cm, 9-21 pieces and 10.6-23.8 cm, respectively in the 0-year-olds; 22.0-39.1 cm, 5.5-6.9 cm, 14-27 pieces and 20.1-34.9 cm, respectively in the 1-year-olds; 9.6-25.6 cm, 5.8-8.1 cm, 17-30 pieces and 32.5-40.3 cm, respectively in the 2-year-olds. Thus, all biometric parameters except for primary blade length increased with age, but these values overlapped with each age group and they did not separate clearly.