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The Effect of Temperature on Califor...

Van Deusen, Vanessa.

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The Effect of Temperature on California Spiny Lobster (Panulirus interruptus) Predation on Purple Sea Urchins (Strogylocentrotus purpuratus).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Effect of Temperature on California Spiny Lobster (Panulirus interruptus) Predation on Purple Sea Urchins (Strogylocentrotus purpuratus)./
作者:	Van Deusen, Vanessa.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	31 p.
附註:	Source: Masters Abstracts International, Volume: 84-11.
Contained By:	Masters Abstracts International84-11.
標題:	Ecology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30523667
ISBN:	9798379570972

The Effect of Temperature on California Spiny Lobster (Panulirus interruptus) Predation on Purple Sea Urchins (Strogylocentrotus purpuratus).
Van Deusen, Vanessa.

The Effect of Temperature on California Spiny Lobster (Panulirus interruptus) Predation on Purple Sea Urchins (Strogylocentrotus purpuratus). - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 31 p.

Source: Masters Abstracts International, Volume: 84-11.

Thesis (M.S.)--San Diego State University, 2023.

This item must not be sold to any third party vendors.

Ocean warming affects the physiology and behavior of marine organisms, which can alter the nature of species interactions. Increasing temperature accelerates biological reactions including metabolism. In response, organisms consume more calories to maintain basal function, which may alter predator-prey relationships. We examined the effects of water temperature on the predation behavior and metabolic rate of the California spiny lobster, Panulirus interruptus, an important predator of sea urchins in Pacific kelp forests. Using laboratory mesocosms, we tested for differences in the functional response of lobster to purple urchin densities, lobster preferential size selection of urchin prey, and lobster respiration rate between present-day temperature (14{CB}{9A}C) and temperatures observed during marine heat waves and expected with future warming (18{CB}{9A}C). Warming did not result in a shift in the regulatory potential of lobster's functional response: lobsters exhibited a nonregulatory type II functional response to urchin density at both water temperatures. However, warming caused a steeper increase in lobster consumption of urchins with increasing prey density, as well as a reduction in urchin handling time. Though warming increased lobster metabolic demand by 33%, warming had no influence on lobster activity levels or preferential urchin size selection. Lobsters continued to preferentially select smaller urchins over larger urchins with temperature increase. Increased urchin consumption especially at low prey densities with warming will likely promote kelp forest stability, potentially helping mitigate urchin barren production as temperature increases.{A0}

ISBN: 9798379570972Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Marine organisms

The Effect of Temperature on California Spiny Lobster (Panulirus interruptus) Predation on Purple Sea Urchins (Strogylocentrotus purpuratus).
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