東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Modeling the growth dynamics of Clad...

Higgins, Scott Neil.

FindBook

Google Book

Amazon

博客來

Modeling the growth dynamics of Cladophora in eastern Lake Erie.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modeling the growth dynamics of Cladophora in eastern Lake Erie./
作者:	Higgins, Scott Neil.
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1851.
Contained By:	Dissertation Abstracts International66-04B.
標題:	Biology, Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR01254
ISBN:	0494012544

Modeling the growth dynamics of Cladophora in eastern Lake Erie.
Higgins, Scott Neil.

Modeling the growth dynamics of Cladophora in eastern Lake Erie. - 169 p.

Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1851.

Thesis (Ph.D.)--University of Waterloo (Canada), 2005.

Cladophora glomerata is a filamentous green alga that currently forms extensive blooms in nearshore areas of Lake Ontario, eastern Lake Erie, Lake Michigan, and isolated locations in Lake Huron. The biomass, areal coverage, algal bed characteristics, and tissue phosphorus concentrations of Cladophora glomerata were measured at 24 nearshore rocky sites along the northern shoreline of Lake Erie's eastern basin between 1995--2002. Midsummer areal coverage at shallow depths (≤5m) ranged from 4--100%, with a median value of 96%. Peak seasonal biomass ranged from <1 to 940 g m-2 dry mass (DM), with a median value of 171 g m -2 DM. Tissue phosphorus varied seasonally, with initial high values in early May (0.15 to 0.27% DM; median 0.23% DM) to midsummer seasonal low values during peak biomass (0.03 to 0.23% DM; median 0.06% DM). A numerical Cladophora growth model (CGM) was revised and field-tested at 5 sites in eastern Lake Erie during 2002. The CGM is useful for: (1) Predicting Cladophora growth, biomass, and tissue phosphorus concentrations under non-point source P loading with no depth restrictions; (2) providing estimates of the timing and magnitude of the midsummer sloughing phenomenon; (3) determining the contribution of Dreissena invasion to the resurgence of Cladophora in eastern Lake Erie; and (4) developing management strategies for Cladophora abatement. The CGM was applied to investigate how the spatial and temporal patterns of Cladophora growth were influenced by the natural variability in environmental parameters in eastern Lake Erie. Seasonal patterns in Cladophora growth were strongly influenced by temperature, and peak depth-integrated biomass was strongly influenced by both available light and phosphorus. The photosynthetic capacity of field collected Cladophora was a poor predictor of the mid-summer sloughing phenomenon. The CGM, however, predicted that self-shading within the dense Cladophora mats would have caused negative growth rates at the base of the dense mats for 14 days prior to the sloughing event. The metabolic imbalances at the base of the Cladophora mats were driven primarily by the availability of light and were exacerbated by intermediate water temperatures (&sim;23°C). The excellent agreement between model simulations and field data illustrates the ability of the CGM to predict tissue P and growth over a range of sites and depths in eastern Lake Erie and suggests potential for the model to be successfully applied in other systems.

ISBN: 0494012544Subjects--Topical Terms:

1017726
Biology, Ecology.

Modeling the growth dynamics of Cladophora in eastern Lake Erie.
LDR:03334nmm 2200265 4500 001 1850569
005 20051208095338.5
008 130614s2005 eng d
020 $a 0494012544
035 $a (UnM)AAINR01254
035 $a AAINR01254
040 $a UnM $c UnM
100 1 $a Higgins, Scott Neil. $3 1938489
245 1 0 $a Modeling the growth dynamics of Cladophora in eastern Lake Erie.
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1851.
502 $a Thesis (Ph.D.)--University of Waterloo (Canada), 2005.
520 $a Cladophora glomerata is a filamentous green alga that currently forms extensive blooms in nearshore areas of Lake Ontario, eastern Lake Erie, Lake Michigan, and isolated locations in Lake Huron. The biomass, areal coverage, algal bed characteristics, and tissue phosphorus concentrations of Cladophora glomerata were measured at 24 nearshore rocky sites along the northern shoreline of Lake Erie's eastern basin between 1995--2002. Midsummer areal coverage at shallow depths (≤5m) ranged from 4--100%, with a median value of 96%. Peak seasonal biomass ranged from <1 to 940 g m-2 dry mass (DM), with a median value of 171 g m -2 DM. Tissue phosphorus varied seasonally, with initial high values in early May (0.15 to 0.27% DM; median 0.23% DM) to midsummer seasonal low values during peak biomass (0.03 to 0.23% DM; median 0.06% DM). A numerical Cladophora growth model (CGM) was revised and field-tested at 5 sites in eastern Lake Erie during 2002. The CGM is useful for: (1) Predicting Cladophora growth, biomass, and tissue phosphorus concentrations under non-point source P loading with no depth restrictions; (2) providing estimates of the timing and magnitude of the midsummer sloughing phenomenon; (3) determining the contribution of Dreissena invasion to the resurgence of Cladophora in eastern Lake Erie; and (4) developing management strategies for Cladophora abatement. The CGM was applied to investigate how the spatial and temporal patterns of Cladophora growth were influenced by the natural variability in environmental parameters in eastern Lake Erie. Seasonal patterns in Cladophora growth were strongly influenced by temperature, and peak depth-integrated biomass was strongly influenced by both available light and phosphorus. The photosynthetic capacity of field collected Cladophora was a poor predictor of the mid-summer sloughing phenomenon. The CGM, however, predicted that self-shading within the dense Cladophora mats would have caused negative growth rates at the base of the dense mats for 14 days prior to the sloughing event. The metabolic imbalances at the base of the Cladophora mats were driven primarily by the availability of light and were exacerbated by intermediate water temperatures (&sim;23°C). The excellent agreement between model simulations and field data illustrates the ability of the CGM to predict tissue P and growth over a range of sites and depths in eastern Lake Erie and suggests potential for the model to be successfully applied in other systems.
590 $a School code: 1141.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Environmental Sciences. $3 676987
650 4 $a Biology, Oceanography. $3 783691
690 $a 0329
690 $a 0768
690 $a 0416
710 2 0 $a University of Waterloo (Canada). $3 1017669
773 0 $t Dissertation Abstracts International $g 66-04B.
790 $a 1141
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR01254