Temporal fluctuation in the abundance of a semelid bivalve, Theora fragilis (A. Adams) in Maizuru Bay, Sea of Japan
Temporal fluctuation in the abundance of a semelid bivalve, Theora fragilis (A. Adams) in Maizuru Bay, Sea of Japan
复制标题
日本海舞鹤湾半壳类双壳类 Theora fragilis (A. Adams) 丰度的时间波动
DOI：
10.1023/a:1017061006533
复制
发表时间：
1998
期刊：
影响因子：
2.6
通讯作者：
I. Hayashi
中科院分区：
文献类型：
--
作者：
H. Saito;M. Ueno;I. Hayashi
本文报道了一种半壳类双壳类--脆弱Theora fragilis（A.亚当斯）进行了研究，舞鹤湾，日本海的基础上获得的数据，通过每周或每两周采样。从2月初到4月初，种群数量急剧增加。然而，到8月初，底栖生物几乎消失，只留下零星的幸存者。中央和最里面的站之间的平均增长的比较表明，许多青少年招募到成年人的大小在后者站，在那里观察到高沉降的颗粒有机物（POM）。在中心站，POM的平均沉降率是原来的1/3，很少有个体补充到成年大小。在两个研究中心，小型青少年的发生率相当。得出的结论是，营养投入是重要的招募成成人的大小和由此产生的繁殖力。
The population dynamics of a semelid bivalveTheora fragilis(A. Adams) were studied in Maizuru Bay, the Sea of Japan based on data obtained through weekly or bi-weekly sampling. A sharp increase in population abundance occurred from early February to early April. However, the benthic population had almost disappeared leaving only sporadic survivors by early August. Comparison of average growth between the central and the innermost stations showed that many juveniles recruited into adult size at the latter station, where high sedimentation of particulate organic matter (POM) was observed. At the central station, the mean POM sedimentation rate was 1/3 that of the former station, and few individuals recruited into adult size. The occurrence of small juveniles was comparable at both sites. It was concluded that nutritional input is important for both recruitment into adult size and resulting fecundity.
赞岐西学
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
Yazawa A;Takada S;Suzuki H;Fujisawa TX;Tomoda A.;胡光
通讯作者：
胡光