東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms : = Surprising Diversity Among Reef Algae.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms :/
Reminder of title:	Surprising Diversity Among Reef Algae.
Author:	Kawachi, Migiwa S.
Description:	1 online resource (182 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
Subject:	Plant sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30493224click for full text (PQDT)
ISBN:	9798379894726

Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms : = Surprising Diversity Among Reef Algae.
Kawachi, Migiwa S.

Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms :Surprising Diversity Among Reef Algae. - 1 online resource (182 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--University of Hawai'i at Manoa, 2023.

Includes bibliographical references

Increased anthropogenic CO2 emission since the start of the Industrial Revolution has brought a changing climate and various threats to coastal ecosystems including ocean warming, ocean acidification (OA), and sea level rise. Coral reef ecosystems are especially vulnerable to the climate change, because ocean warming and acidification decrease calcification and increase bleaching in coral. In addition to these impacts of climate change, coastal ecosystems are already experiencing local anthropogenic impacts such as chronic eutrophication and continuing arrival of new invasive species. In Hawai'i, large-scale blooms of both native and invasive macroalgae are often observed in the region with coastal eutrophication by land-based anthropogenic nutrient input. Predicting the effects of OA (increased CO2 concentration in the ocean) on algae is not straightforward because many algae are already equipped with carbon-concentrating mechanisms (CCMs) with which algae can increase their internal CO2 concentration for photosynthesis. Further, nutrient availability especially that of the macronutrient, nitrogen (N) could alter the operation of algal CCMs because CCMs involve specific, large proteins such as ribulose-1,5-biphosphate carboxylase-oxygenase (RUBISCO) and carbonic anhydrases (CA). This study experimentally investigated how OA and eutrophication, independently and synergistically, affect photosynthesis and CCMs in common Hawaiian reef algae. Algae can quickly change their maximum photosynthetic rates and CCMs when grown under elevated CO2 and N. Further, we found a surprising diversity among reef algae in how they react to elevated CO2 and N with their CCMs. The results of this study suggest that many Hawaiian algae will thrive under future climate change conditions, and OA and eutrophication will likely work in their favor, accelerating the phase shift from coral-dominated to macroalgal-dominated reefs in unpredictably faster paces and with players that are not easily predicted.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379894726Subjects--Topical Terms:

3173832
Plant sciences.
Subjects--Index Terms:

AlgaeIndex Terms--Genre/Form:

542853
Electronic books.

Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms : = Surprising Diversity Among Reef Algae.
LDR:03477nmm a2200409K 4500 001 2359443
005 20230917193951.5
006 m o d
007 cr mn ---uuuuu
008 241011s2023 xx obm 000 0 eng d
020 $a 9798379894726
035 $a (MiAaPQ)AAI30493224
035 $a AAI30493224
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Kawachi, Migiwa S. $3 3700043
245 1 0 $a Effects of Climate Change and Eutrophication on Photosynthesis and Carbon-Concentrating Mechanisms : $b Surprising Diversity Among Reef Algae.
264 0 $c 2023
300 $a 1 online resource (182 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
500 $a Advisor: Smith, Celia M.
502 $a Thesis (Ph.D.)--University of Hawai'i at Manoa, 2023.
504 $a Includes bibliographical references
520 $a Increased anthropogenic CO2 emission since the start of the Industrial Revolution has brought a changing climate and various threats to coastal ecosystems including ocean warming, ocean acidification (OA), and sea level rise. Coral reef ecosystems are especially vulnerable to the climate change, because ocean warming and acidification decrease calcification and increase bleaching in coral. In addition to these impacts of climate change, coastal ecosystems are already experiencing local anthropogenic impacts such as chronic eutrophication and continuing arrival of new invasive species. In Hawai'i, large-scale blooms of both native and invasive macroalgae are often observed in the region with coastal eutrophication by land-based anthropogenic nutrient input. Predicting the effects of OA (increased CO2 concentration in the ocean) on algae is not straightforward because many algae are already equipped with carbon-concentrating mechanisms (CCMs) with which algae can increase their internal CO2 concentration for photosynthesis. Further, nutrient availability especially that of the macronutrient, nitrogen (N) could alter the operation of algal CCMs because CCMs involve specific, large proteins such as ribulose-1,5-biphosphate carboxylase-oxygenase (RUBISCO) and carbonic anhydrases (CA). This study experimentally investigated how OA and eutrophication, independently and synergistically, affect photosynthesis and CCMs in common Hawaiian reef algae. Algae can quickly change their maximum photosynthetic rates and CCMs when grown under elevated CO2 and N. Further, we found a surprising diversity among reef algae in how they react to elevated CO2 and N with their CCMs. The results of this study suggest that many Hawaiian algae will thrive under future climate change conditions, and OA and eutrophication will likely work in their favor, accelerating the phase shift from coral-dominated to macroalgal-dominated reefs in unpredictably faster paces and with players that are not easily predicted.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Plant sciences. $3 3173832
650 4 $a Botany. $3 516217
650 4 $a Biological oceanography. $3 2122748
653 $a Algae
653 $a Carbon-concentrating mechanisms
653 $a Climate change
653 $a Coral reef
653 $a Eutrophication
653 $a Pyrenoid
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0479
690 $a 0309
690 $a 0416
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a University of Hawai'i at Manoa. $b Botany. $3 2119472
773 0 $t Dissertations Abstracts International $g 85-01B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30493224 $z click for full text (PQDT)