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Abalone were held in culture tanks that received 20-[micro]m-filtered, 8-14[degrees]C, ~30 PSU seawater, and were fed ad libitum naturally occurring benthic diatoms and macroalgae Nereocystis leutkeana and Palmaria mollis.
The book consists of five detailed chapters on ecosystem-based management of marine microalgae and the bull kelp Nereocystis leutkeana, the ecology and management of temperate mangroves, the exploitation and conservation of precious corals, the biology of vestimentiferan tubeworms, and historical reconstruction of human-induced changes in US estuaries.
We analyzed aerial photographs taken in summer/fall of 1969-91 and 1997-98 to determine the effects of the Diablo Canyon Power Plant thermal discharge on the surface canopies of giant kelp, Macrocystis, and bull kelp, Nereocystis.
Photosynthetic and light-independent carbon fixation in Macrocystis, Nereocystis, and some selected Pacific Laminariales.
In the San Juan Islands of Washington, Vadas (1977) found Nereocystis luetkeana to be most preferred, followed by Costaria costata and Laminaria saccharina; two species of Agarum were actively avoided.
In contrast, northern Pacific canopy kelps are annuals (Alaria fistulosa and Nereocystis luetkeana [hereafter Nereocystis]) that afford much less midwater structure.
The Pacific abalone usually lives in environments with large, brown algae such as Ecklonia, Nereocystis, Macrocystis, Laminaria, and Eisenia (Lindberg 1992), which is probably why the green to brown G-type shells are predominant in wild populations.
Morris & Campbell (1996) found that RSU fed with eelgrass grew almost 50% slower than those fed with bull kelp, Nereocystis luetkeana.
Laminaria, Nereocystis, Alaria, and Costaria; Vadas, 1968, 1977) are highest (Carter, 1999).
Abalone growth is more rapid in moderately exposed areas with giant, Macrocystis integrifolia, or bull, Nereocystis luetkeana, kelp forests than at highly exposed areas with Pterygophora californica kelp forests (Sloan & Breen 1988).
From late spring through fall, beds of bull kelp, Nereocystis leutkeana, form canopies at the sea's surface in many places, but most are swept away by storm seas during the subsequent winter.
Canopy-forming kelp, namely Macrocystis integrifolia and Nereocystis luetkeana, and two genera of understorey kelp, Pterygophora californica and Laminaria spp.
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