Details:

Journal Title:
Journal of the World Aquaculture Society
Personal Author:
Stekoll, Michael S. ; Peeples, Tamsen N. ; Raymond, Ann E. T.
Stekoll, Michael S. ; Peeples, Tamsen N. ; Raymond, Ann E. T. Less -
NOAA Program & Office:
Sea Grant ; OAR (Oceanic and Atmospheric Research)
Sea Grant ; OAR (Oceanic and Atmospheric Research) Less -
Sea Grant Program:
AKU (Alaska Sea Grant)
Description:
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.
Keywords:
[+]
Giant Kelp Mariculture
Source:
J World Aquac Soc. 2021; 52: 1031– 1046
DOI:
https://doi.org/10.1111/jwas.12765
Sea Grant Document Number:
AKU-R-21-001
Document Type:
Journal Article
Funding:
Grant no. NA18OAR4170078
Place as Subject:
Alaska
Rights Information:
CC BY
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:8087d5e1f3ba3f38796c0c63d847bd0e69e3c60f0e22b69f3a5422503dc267ac
Download URL:
https://repository.library.noaa.gov/view/noaa/37286/noaa_37286_DS1.pdf
File Type:

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