There has been increasing interest in Alaska regarding the commercial mariculture of kelp. Kelp farming can be an economic engine for coastal communities of Alaska. Other benefits include ecosystem services, including carbon sequestration and mitigation of eutrophication. In support of this interest, several kelp species have been examined for commercial potential. In the 1980s–1990s, experiments were performed on the giant kelp Macrocystis pyrifera. Female gametophytes were exposed to varying levels of chelated iron. Relatively low levels of chelated iron (1–5 μM) stimulated the onset of oogenesis. In contrast, higher iron concentrations inhibited egg production. Outplant experiments with Macrocystis in Sitka, AK showed growth in the winter and spring, slowing down to zero growth by the end of summer. Fertilizing outplants in August allowed plants to survive and grow during the ensuing winter. Mariculture experiments with Saccharina latissima carried out near Juneau, Alaska showed exponential growth for seeded lines set out from September to March. Optimal growth occurred for outplants in October–November, with growth rates of up to 5% per day. The best growth occurred when lines were 2–3 m below the surface. Growth rates declined in May–June corresponding to a decrease in inorganic nitrogen in the water. Slower growth also resulted in severe fouling.

中文翻译：

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阿拉斯加东南部Macrocystis pyrifera和Saccharina latissima的海水养殖研究

阿拉斯加对海带的商业海水养殖越来越感兴趣。海带养殖可以成为阿拉斯加沿海社区的经济引擎。其他好处包括生态系统服务，包括固碳和缓解富营养化。为支持这种兴趣，已检查了几种海带物种的商业潜力。在 1980 年代至 1990 年代，对巨型海带Macrocystis pyrifera进行了实验。雌性配子体暴露于不同水平的螯合铁。相对低水平的螯合铁 (1–5 μM) 刺激了卵子发生的发生。相反，较高的铁浓度会抑制产蛋量。苗木出圃实验与Macrocystis在锡特卡，AK 在冬春季节出现增长，到夏末放缓至零增长。在 8 月给外植体施肥使植物能够在随后的冬季存活和生长。在阿拉斯加州朱诺附近进行的Saccharina latissima海水养殖实验显示，9 月至 3 月间播种的种系呈指数增长。10 月至 11 月的外植株生长最佳，每天的增长率高达 5%。当线位于地表以下 2-3 m 时，生长最好。5 月至 6 月的增长率下降，对应于水中无机氮的减少。较慢的增长也导致严重的污垢。