Tools

LEADER 03629cam a2200541Ii 4500

001 on1001281796;

003 OCoLC;

005 20171114043318.0;

006 m o d ;

007 cr unu||||||||;

008 170816s2017 ncua obm 000 0 eng d;

035 a| (Sirsi) o1001281796;

035 a| (OCoLC)1001281796;

043 a| n-us-nc;

049 a| EREE;

090 a| QR99.7.C;

100 1 a| Jupitz, Madison C.,e| author.?| UNAUTHORIZED;

245 14 a| The effects of temperature on Microcystin-LR toxicity to Bosmina longirostris :b| food web implications in the Chowan River, North Carolina /c| by Madison C. Jupitz.;

264 1 a| [Greenville, N.C.] :b| [East Carolina University],c| 2017.;

300 a| 82 pages :b| illustrations (some color);

336 a| textb| txt2| rdacontent;

337 a| computerb| c2| rdamedia;

338 a| online resourceb| cr2| rdacarrier;

347 a| text fileb| PDFc| 2.273 MB2| rda;

538 a| System requirements: Adobe Reader.;

538 a| Mode of access: World Wide Web.;

502 b| M.S.c| East Carolina Universityd| 2017.;

500 a| Presented to the faculty of Biology;

500 a| Advisor: Erin K. Field;

500 a| Title from PDF t.p. (viewed November 6, 2017).;

520 3 a| In the Chowan River, North Carolina, the frequency of Microcystis aeruginosa blooms has increased over recent years with an average 1.9°C rise in June water temperatures since 1975. Zooplankton are an important trophic link for toxins to move up the food web. Bosmina longirostris, a dominant zooplankton in the Chowan River, consumes toxic M. aeruginosa cells. This study aimed to understand how microcystin-LR, produced from M. aeruginosa blooms, affects B. longirostris mortality under increasing temperatures. B. longirostris were resistant to microcystin-LR, demonstrating an LC50 of 26.3 [mu]g/L. Therefore B. longirostris can survive typical bloom microcystin-LR concentrations ranging less than 0.1 [micro]g/L to 2.0 [mu]g/L. As temperatures were increased from 25°C to 35°C, microcystin-LR mortality increased approximately 18% from 25-27°C; demonstrating that microcystin-LR was more toxic with increasing temperatures. Above 27°C, mortality also increased, but this was due to the effect of temperature rather than increased toxicity of microcystin-LR. This signifies that during spring, when temperatures are below 27°C and B. longirostris are most abundant, microcystin-LR may be most toxic and may have the greatest influence on the Chowan River food web. Under climate change conditions microcystin-LR may eliminate resistant zooplankton from the food web, putting pressure on larval fish and fisheries.;

504 a| Includes bibliographical references.;

650 0 a| Microcystis aeruginosaz| North Carolina.=| ^A1349436;

650 0 a| Food chains (Ecology)z| North Carolina.=| ^A73850;

650 0 a| Toxicity, Effect of temperature on.=| ^A1349423;

650 0 a| Zooplanktonz| North Carolina.=| ^A315030;

651 0 a| Chowan River (N.C.)=| ^A138314;

653 a| Microcystin-LR;

653 a| Bosmina longirostris;

700 1 a| Field, Erin K.,e| degree supervisor.?| UNAUTHORIZED;

710 2 a| East Carolina University.b| Department of Biology.=| ^A637467;

856 40 z| Access via ScholarShipu| http://hdl.handle.net/10342/6387;

994 a| C0b| ERE;

596 a| 1 4;

998 a| 4733364;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 4733364-1001l| JNETm| JOYNERr| Ys| Yt| JNE3ETDu| 8/16/2017x| ETDz| JERESOURCE;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 4733364-2001l| HSLELECm| HSLr| Ys| Yt| HEETDu| 8/16/2017x| ETDz| HERESOURCE;

The effects of temperature on Microcystin-LR toxicity to Bosmina longirostris : food web implications in the Chowan River, North Carolina / by Madison C. Jupitz.

Author/creator	Jupitz, Madison C. author.
Other author	Field, Erin K., degree supervisor.
Other author	East Carolina University. Department of Biology.
Format	Theses and dissertations
Publication	[Greenville, N.C.] : [East Carolina University], 2017.
Description	82 pages : illustrations (some color)
Supplemental Content	Access via ScholarShip
Subjects	Microcystis aeruginosa--North Carolina. Food chains (Ecology)--North Carolina. Toxicity, Effect of temperature on. Zooplankton--North Carolina. Chowan River (N.C.)

Summary	In the Chowan River, North Carolina, the frequency of Microcystis aeruginosa blooms has increased over recent years with an average 1.9°C rise in June water temperatures since 1975. Zooplankton are an important trophic link for toxins to move up the food web. Bosmina longirostris, a dominant zooplankton in the Chowan River, consumes toxic M. aeruginosa cells. This study aimed to understand how microcystin-LR, produced from M. aeruginosa blooms, affects B. longirostris mortality under increasing temperatures. B. longirostris were resistant to microcystin-LR, demonstrating an LC50 of 26.3 [mu]g/L. Therefore B. longirostris can survive typical bloom microcystin-LR concentrations ranging less than 0.1 [micro]g/L to 2.0 [mu]g/L. As temperatures were increased from 25°C to 35°C, microcystin-LR mortality increased approximately 18% from 25-27°C; demonstrating that microcystin-LR was more toxic with increasing temperatures. Above 27°C, mortality also increased, but this was due to the effect of temperature rather than increased toxicity of microcystin-LR. This signifies that during spring, when temperatures are below 27°C and B. longirostris are most abundant, microcystin-LR may be most toxic and may have the greatest influence on the Chowan River food web. Under climate change conditions microcystin-LR may eliminate resistant zooplankton from the food web, putting pressure on larval fish and fisheries.
General note	Presented to the faculty of Biology
General note	Advisor: Erin K. Field
General note	Title from PDF t.p. (viewed November 6, 2017).
Dissertation note	M.S. East Carolina University 2017.
Bibliography note	Includes bibliographical references.
Technical details	System requirements: Adobe Reader.
Technical details	Mode of access: World Wide Web.

Availability

Library	Location	Call Number	Status	Item Actions
	Electronic Resources	Access Content Online	✔ Available

The effects of temperature on Microcystin-LR toxicity to Bosmina longirostris : food web implications in the Chowan River, North Carolina / by Madison C. Jupitz.

Click here for more information about this title

Availability