Analysis of the relationship between submerged aquatic vegetation (SAV) and water trophic status of lakes clustered in northwestern Hillsborough county, Florida

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Abstract

This study examined the relationship between abundance of submerged aquatic vegetation (SAV) and the water trophic status of a group of lakes located in northwestern Hillsborough county. SAV abundance was expressed by the percent of lake volume infested with SAV (PVI) and the percent of lake area covered with SAV (PAC). The group of lakes was divided into two subgroups based on SAV abundance less than 20 PVI (PVI∈<∈20) and lakes with more than 20 PVI (PVI∈>∈20). Mean concentrations of total phosphorus (TP), total nitrogen (TN), and chlorophyll-α in lake water were used as indicators of trophic status, with the concentration of each nutrient in one group of lakes compared to its corresponding concentration in the other group. Lakes with PVI∈<∈20 had a mean concentration of TP and chlorophyll-α of 28 and 11 μg/l, respectively, while those with a PVI∈>∈20 had a mean concentration of 18 and 4 μg/l for the same parameters, respectively. The results of a t test and one-way ANOVA performed at the 95% confidence level indicated that the differences were significant for the concentrations of TP and chlorophyll-α but not for TN, the last of which had a mean lake water concentration of 0.8 and 0.7 mg/l for the PVI∈<∈20 and PVI∈>∈20 subgroups, respectively.

Original languageEnglish (US)
Pages (from-to)539-546
Number of pages8
JournalWater, Air, and Soil Pollution
Volume214
Issue number1-4
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

Fingerprint

trophic status
Lakes
Water
vegetation
lake
water
lake water
chlorophyll
Chlorophyll
Phosphorus
phosphorus
Nitrogen
nitrogen
analysis
county
Analysis of variance (ANOVA)
Nutrients
nutrient

Keywords

  • Chlorophyll-α
  • Macrophytes
  • PAC
  • Phytoplankton
  • PVI
  • Relationship
  • Total nitrogen
  • Total phosphorus
  • Water quality

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Pollution

Cite this

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abstract = "This study examined the relationship between abundance of submerged aquatic vegetation (SAV) and the water trophic status of a group of lakes located in northwestern Hillsborough county. SAV abundance was expressed by the percent of lake volume infested with SAV (PVI) and the percent of lake area covered with SAV (PAC). The group of lakes was divided into two subgroups based on SAV abundance less than 20 PVI (PVI∈<∈20) and lakes with more than 20 PVI (PVI∈>∈20). Mean concentrations of total phosphorus (TP), total nitrogen (TN), and chlorophyll-α in lake water were used as indicators of trophic status, with the concentration of each nutrient in one group of lakes compared to its corresponding concentration in the other group. Lakes with PVI∈<∈20 had a mean concentration of TP and chlorophyll-α of 28 and 11 μg/l, respectively, while those with a PVI∈>∈20 had a mean concentration of 18 and 4 μg/l for the same parameters, respectively. The results of a t test and one-way ANOVA performed at the 95{\%} confidence level indicated that the differences were significant for the concentrations of TP and chlorophyll-α but not for TN, the last of which had a mean lake water concentration of 0.8 and 0.7 mg/l for the PVI∈<∈20 and PVI∈>∈20 subgroups, respectively.",
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N2 - This study examined the relationship between abundance of submerged aquatic vegetation (SAV) and the water trophic status of a group of lakes located in northwestern Hillsborough county. SAV abundance was expressed by the percent of lake volume infested with SAV (PVI) and the percent of lake area covered with SAV (PAC). The group of lakes was divided into two subgroups based on SAV abundance less than 20 PVI (PVI∈<∈20) and lakes with more than 20 PVI (PVI∈>∈20). Mean concentrations of total phosphorus (TP), total nitrogen (TN), and chlorophyll-α in lake water were used as indicators of trophic status, with the concentration of each nutrient in one group of lakes compared to its corresponding concentration in the other group. Lakes with PVI∈<∈20 had a mean concentration of TP and chlorophyll-α of 28 and 11 μg/l, respectively, while those with a PVI∈>∈20 had a mean concentration of 18 and 4 μg/l for the same parameters, respectively. The results of a t test and one-way ANOVA performed at the 95% confidence level indicated that the differences were significant for the concentrations of TP and chlorophyll-α but not for TN, the last of which had a mean lake water concentration of 0.8 and 0.7 mg/l for the PVI∈<∈20 and PVI∈>∈20 subgroups, respectively.

AB - This study examined the relationship between abundance of submerged aquatic vegetation (SAV) and the water trophic status of a group of lakes located in northwestern Hillsborough county. SAV abundance was expressed by the percent of lake volume infested with SAV (PVI) and the percent of lake area covered with SAV (PAC). The group of lakes was divided into two subgroups based on SAV abundance less than 20 PVI (PVI∈<∈20) and lakes with more than 20 PVI (PVI∈>∈20). Mean concentrations of total phosphorus (TP), total nitrogen (TN), and chlorophyll-α in lake water were used as indicators of trophic status, with the concentration of each nutrient in one group of lakes compared to its corresponding concentration in the other group. Lakes with PVI∈<∈20 had a mean concentration of TP and chlorophyll-α of 28 and 11 μg/l, respectively, while those with a PVI∈>∈20 had a mean concentration of 18 and 4 μg/l for the same parameters, respectively. The results of a t test and one-way ANOVA performed at the 95% confidence level indicated that the differences were significant for the concentrations of TP and chlorophyll-α but not for TN, the last of which had a mean lake water concentration of 0.8 and 0.7 mg/l for the PVI∈<∈20 and PVI∈>∈20 subgroups, respectively.

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