Surveys of Undaria pinnatifida (Laminariales, Phaeophyta) in Golfo Nuevo, Argentina
Surveys of Undaria pinnatifida (Laminariales, Phaeophyta) in Golfo Nuevo, Argentina
复制标题
阿根廷新湾的裙带菜（海带目，褐藻门）调查
作者：
G. Casas;M. Piriz
1992年12月，在A. Storni' Port，马德林港，阿根廷.在1994年的冬天，该物种从其原始位置显着扩大。孢子虫出现在初秋，并在冬季和早春达到最大尺寸（1.65 ± 0.10 m），此时大多数孢子虫都变得肥沃。叶子在夏天消失，只有一些固着结构和孢子叶存活，这些结构在夏末消失。U.据报道，努埃沃湾的一种羽状珊瑚虫是由于来自亚洲港口的货船或渔船意外引入的。
In December 1992, some sporophytes of the Asian kelp Undaria pinnatiftda were found growing subtidally at 6 m depth below ‘A. Storni’ Port, Puerto Madryn, Argentina. During the winter of 1994, the species expanded significantly from its original location. Sporelings appear in early autumn and attain their maximum size (1.65 ± 0.10 m) during winter and early spring, when most of them become fertile. The fronds are lost in summer, with only some holdfasts and sporophylls surviving, and these disappear by the end of summer. The occurrence of U. pinnatida in Golfo Nuevo is reportedly due to an accidental introduction by cargo ships or fishing vessels arriving from Asian ports.