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Potential Transgenerational Effects of Ocean Acidification on the Olympia Oyster Ostrea Lurida : = A Three-Part Experimental Study.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Potential Transgenerational Effects of Ocean Acidification on the Olympia Oyster Ostrea Lurida :/
其他題名:	A Three-Part Experimental Study.
作者:	Wippel, Bryanda Jerri Tiare.
面頁冊數:	1 online resource (21 pages)
附註:	Source: Masters Abstracts International, Volume: 56-06.
標題:	Biology. -
電子資源:	click for full text (PQDT)
ISBN:	9780355122633

Potential Transgenerational Effects of Ocean Acidification on the Olympia Oyster Ostrea Lurida : = A Three-Part Experimental Study.
Wippel, Bryanda Jerri Tiare.

Potential Transgenerational Effects of Ocean Acidification on the Olympia Oyster Ostrea Lurida :A Three-Part Experimental Study. - 1 online resource (21 pages)

Source: Masters Abstracts International, Volume: 56-06.

Thesis (Master's)--University of Washington, 2017.

Includes bibliographical references

Ocean acidification (OA) is decreasing the pH of surface waters in Puget Sound, Washington, an area already prone to low pH from natural processes such as upwelling, freshwater inputs, and high respiration/decomposition rates. High rates of production and long residence times in Puget Sound can also lead to low dissolved oxygen (DO) levels (hypoxia) in some areas. Studies have shown the negative effects of these stressors on marine organisms, particularly calcifiers. I examined how changes in pH and oxygen in seawater affect adult fecundity and larval survival of the native Olympia oyster (Ostrea lurida). Through three discrete trials, I observed the following trends: Adult oysters conditioned at ~400 microatm released significantly more larvae than those conditioned at higher pCO2 levels ranging from 1000 to 2475 microatm pCO2. Larval survival decreased in two multi-stressor treatments when challenged with varying combinations of pCO2 and DO. Offspring of parents conditioned under high pCO 2 experienced reduced survival when exposed to both high pCO2 and low DO (14.7% survival). In addition, progeny of adults conditioned under low pCO2 died when exposed to high pCO2 and high DO (22% survival). Our results suggest that elevated pCO2 negatively affects fecundity in O. lurida but that the synergistic effects of high CO2 and low DO on larval survival is more complicated than previously reported. Multigenerational, multi-stressor studies such as this are important in determining how species will respond to an environmental change in the ocean.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355122633Subjects--Topical Terms:

599573
Biology.
Index Terms--Genre/Form:

554714
Electronic books.

Potential Transgenerational Effects of Ocean Acidification on the Olympia Oyster Ostrea Lurida : = A Three-Part Experimental Study.
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520 $a Ocean acidification (OA) is decreasing the pH of surface waters in Puget Sound, Washington, an area already prone to low pH from natural processes such as upwelling, freshwater inputs, and high respiration/decomposition rates. High rates of production and long residence times in Puget Sound can also lead to low dissolved oxygen (DO) levels (hypoxia) in some areas. Studies have shown the negative effects of these stressors on marine organisms, particularly calcifiers. I examined how changes in pH and oxygen in seawater affect adult fecundity and larval survival of the native Olympia oyster (Ostrea lurida). Through three discrete trials, I observed the following trends: Adult oysters conditioned at ~400 microatm released significantly more larvae than those conditioned at higher pCO2 levels ranging from 1000 to 2475 microatm pCO2. Larval survival decreased in two multi-stressor treatments when challenged with varying combinations of pCO2 and DO. Offspring of parents conditioned under high pCO 2 experienced reduced survival when exposed to both high pCO2 and low DO (14.7% survival). In addition, progeny of adults conditioned under low pCO2 died when exposed to high pCO2 and high DO (22% survival). Our results suggest that elevated pCO2 negatively affects fecundity in O. lurida but that the synergistic effects of high CO2 and low DO on larval survival is more complicated than previously reported. Multigenerational, multi-stressor studies such as this are important in determining how species will respond to an environmental change in the ocean.
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