The Settlement Cues of an Articulated Coralline Alga Marginisporum crassissima for the Japanese Top Shell Turbo cornutus
The Settlement Cues of an Articulated Coralline Alga Marginisporum crassissima for the Japanese Top Shell Turbo cornutus
复制标题
日本顶壳 Turbo cornutus 的铰接珊瑚藻 Marginisporum crassissima 的定居线索
DOI:
10.2983/035.028.0320
复制
发表时间:
2009
影响因子:
2
通讯作者:
Yoshirô Watanabe
中科院分区:
文献类型:
--
作者:
J. Hayakawa;Tomohiko Kawamura;S. Ohashi;T. Horii;Yoshirô Watanabe
ABSTRACT
Laboratory experiments were conducted to identify settlement cues of larval top shell Turbo cornutus on the articulated coralline alga Marginisporum crassissima. Fragments of M. crassissima strongly induced the larval settlement of the top shell. The settlement percentage of the larvae on ethanol-killed fragments of M. crassissima was significantly lower than on intact algal fragments, even though algal morphology did not differ between live and dead fragments. When the densities of diatoms on algal surfaces were altered by soaking the algal fragments in a germanium dioxide solution or a modified Jørgensen medium, neither treatment (increased or reduced diatom densities) affected the larval settlement percentage on M. crassissima. Similarly, reducing bacterial densities with antibiotics did not affect the larval settlement response to the treated M. crassissima. Top shell larvae were induced to settle by crude extracts of crushed M. crassissima but not by seawater where fragments of M. crassissima were immersed. These results suggest that the main cues inducing larval settlement of T. cornutus are chemical compounds derived from the alga, which have poor water solubility; algal morphology, and surface biofilms did not directly contribute to settlement by top shell larvae.
DOI:
--
发表时间:
2007
期刊:
Journal of shellfish Research 26
影响因子:
--
作者:
Roberts;RD.;Kawamura;T. and Handley;CM.
通讯作者:
CM.
DOI:
--
发表时间:
2022
期刊:
影响因子:
--
作者:
篠崎一世;万李成;中村重孝;藤本健造;八幡 穣
通讯作者:
八幡 穣