Effects of hydrologic and water quality drivers on periphyton dynamics in the southern Everglades

David M. Iwaniec, Daniel Childers, Damon Rondeau, Christopher J. Madden, Colin Saunders

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Everglades periphyton mats are tightly-coupled autotrophic (algae and cyanobacteria) and heterotrophic (eubacteria, fungi and microinvertebrates) microbial assemblages. We investigated the effect of water column total phosphorus and nitrogen concentrations, water depth and hydroperiod on periphyton of net production, respiration, nutrient content, and biomass. Our study sites were located along four transects that extended southward with freshwater sheetflow through sawgrass-dominated marsh. The water source for two of the transects were canal-driven and anchored at canal inputs. The two other transects were rain-driven (ombrotrophic) and began in sawgrass-dominated marsh. Periphyton dynamics were examined for upstream and downstream effects within and across the four transects. Although all study sites were characterized as short hydroperiod and phosphorus-limited oligotrophic, they represent gradients of hydrologic regime, water source and water quality of the southern Everglades. Average periphyton net production of 1.08 mg C AFDW-1 h-1 and periphyton whole system respiration of 0.38 mg C AFDW-1 h -1 rates were net autotrophic. Biomass was generally highest at ombrotrophic sites and sites downstream of canal inputs. Mean biomass over all our study sites was high, 1517.30 g AFDW m-2. Periphyton was phosphorus-limited. Average periphyton total phosphorus content was 137.15 μg P g-1 and average periphyton total N:P ratio was 192:1. Periphyton N:P was a sensitive indicator of water source. Even at extremely low mean water total phosphorus concentrations (≤ 0.21 μmol l-1), we found canal source effects on periphyton dynamics at sites adjacent to canal inputs, but not downstream of inflows. These canal source effects were most pronounced at the onset of wet season with initial rewetting. Spatial and temporal variability in periphyton dynamics could not solely be ascribed to water quality, but was often associated with both hydrology and water source.

Original languageEnglish (US)
Pages (from-to)223-235
Number of pages13
JournalHydrobiologia
Volume569
Issue number1
DOIs
StatePublished - Oct 2006
Externally publishedYes

Fingerprint

periphyton
Canals
Water quality
water quality
Phosphorus
canal
Water
Biomass
phosphorus
transect
water
hydroperiod
algae
Hydrology
marshes
marsh
biomass
Algae
respiration
effect

Keywords

  • Everglades
  • Hydrology
  • Periphyton
  • Phosphorus
  • Water quality

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography
  • Environmental Science(all)
  • Pollution
  • Water Science and Technology

Cite this

Effects of hydrologic and water quality drivers on periphyton dynamics in the southern Everglades. / Iwaniec, David M.; Childers, Daniel; Rondeau, Damon; Madden, Christopher J.; Saunders, Colin.

In: Hydrobiologia, Vol. 569, No. 1, 10.2006, p. 223-235.

Research output: Contribution to journalArticle

Iwaniec, David M. ; Childers, Daniel ; Rondeau, Damon ; Madden, Christopher J. ; Saunders, Colin. / Effects of hydrologic and water quality drivers on periphyton dynamics in the southern Everglades. In: Hydrobiologia. 2006 ; Vol. 569, No. 1. pp. 223-235.
@article{4cc3a3447b884f4cb11f2cd4545f8228,
title = "Effects of hydrologic and water quality drivers on periphyton dynamics in the southern Everglades",
abstract = "Everglades periphyton mats are tightly-coupled autotrophic (algae and cyanobacteria) and heterotrophic (eubacteria, fungi and microinvertebrates) microbial assemblages. We investigated the effect of water column total phosphorus and nitrogen concentrations, water depth and hydroperiod on periphyton of net production, respiration, nutrient content, and biomass. Our study sites were located along four transects that extended southward with freshwater sheetflow through sawgrass-dominated marsh. The water source for two of the transects were canal-driven and anchored at canal inputs. The two other transects were rain-driven (ombrotrophic) and began in sawgrass-dominated marsh. Periphyton dynamics were examined for upstream and downstream effects within and across the four transects. Although all study sites were characterized as short hydroperiod and phosphorus-limited oligotrophic, they represent gradients of hydrologic regime, water source and water quality of the southern Everglades. Average periphyton net production of 1.08 mg C AFDW-1 h-1 and periphyton whole system respiration of 0.38 mg C AFDW-1 h -1 rates were net autotrophic. Biomass was generally highest at ombrotrophic sites and sites downstream of canal inputs. Mean biomass over all our study sites was high, 1517.30 g AFDW m-2. Periphyton was phosphorus-limited. Average periphyton total phosphorus content was 137.15 μg P g-1 and average periphyton total N:P ratio was 192:1. Periphyton N:P was a sensitive indicator of water source. Even at extremely low mean water total phosphorus concentrations (≤ 0.21 μmol l-1), we found canal source effects on periphyton dynamics at sites adjacent to canal inputs, but not downstream of inflows. These canal source effects were most pronounced at the onset of wet season with initial rewetting. Spatial and temporal variability in periphyton dynamics could not solely be ascribed to water quality, but was often associated with both hydrology and water source.",
keywords = "Everglades, Hydrology, Periphyton, Phosphorus, Water quality",
author = "Iwaniec, {David M.} and Daniel Childers and Damon Rondeau and Madden, {Christopher J.} and Colin Saunders",
year = "2006",
month = "10",
doi = "10.1007/s10750-006-0134-z",
language = "English (US)",
volume = "569",
pages = "223--235",
journal = "Hydrobiologia",
issn = "0018-8158",
publisher = "Springer Netherlands",
number = "1",

}

TY - JOUR

T1 - Effects of hydrologic and water quality drivers on periphyton dynamics in the southern Everglades

AU - Iwaniec, David M.

AU - Childers, Daniel

AU - Rondeau, Damon

AU - Madden, Christopher J.

AU - Saunders, Colin

PY - 2006/10

Y1 - 2006/10

N2 - Everglades periphyton mats are tightly-coupled autotrophic (algae and cyanobacteria) and heterotrophic (eubacteria, fungi and microinvertebrates) microbial assemblages. We investigated the effect of water column total phosphorus and nitrogen concentrations, water depth and hydroperiod on periphyton of net production, respiration, nutrient content, and biomass. Our study sites were located along four transects that extended southward with freshwater sheetflow through sawgrass-dominated marsh. The water source for two of the transects were canal-driven and anchored at canal inputs. The two other transects were rain-driven (ombrotrophic) and began in sawgrass-dominated marsh. Periphyton dynamics were examined for upstream and downstream effects within and across the four transects. Although all study sites were characterized as short hydroperiod and phosphorus-limited oligotrophic, they represent gradients of hydrologic regime, water source and water quality of the southern Everglades. Average periphyton net production of 1.08 mg C AFDW-1 h-1 and periphyton whole system respiration of 0.38 mg C AFDW-1 h -1 rates were net autotrophic. Biomass was generally highest at ombrotrophic sites and sites downstream of canal inputs. Mean biomass over all our study sites was high, 1517.30 g AFDW m-2. Periphyton was phosphorus-limited. Average periphyton total phosphorus content was 137.15 μg P g-1 and average periphyton total N:P ratio was 192:1. Periphyton N:P was a sensitive indicator of water source. Even at extremely low mean water total phosphorus concentrations (≤ 0.21 μmol l-1), we found canal source effects on periphyton dynamics at sites adjacent to canal inputs, but not downstream of inflows. These canal source effects were most pronounced at the onset of wet season with initial rewetting. Spatial and temporal variability in periphyton dynamics could not solely be ascribed to water quality, but was often associated with both hydrology and water source.

AB - Everglades periphyton mats are tightly-coupled autotrophic (algae and cyanobacteria) and heterotrophic (eubacteria, fungi and microinvertebrates) microbial assemblages. We investigated the effect of water column total phosphorus and nitrogen concentrations, water depth and hydroperiod on periphyton of net production, respiration, nutrient content, and biomass. Our study sites were located along four transects that extended southward with freshwater sheetflow through sawgrass-dominated marsh. The water source for two of the transects were canal-driven and anchored at canal inputs. The two other transects were rain-driven (ombrotrophic) and began in sawgrass-dominated marsh. Periphyton dynamics were examined for upstream and downstream effects within and across the four transects. Although all study sites were characterized as short hydroperiod and phosphorus-limited oligotrophic, they represent gradients of hydrologic regime, water source and water quality of the southern Everglades. Average periphyton net production of 1.08 mg C AFDW-1 h-1 and periphyton whole system respiration of 0.38 mg C AFDW-1 h -1 rates were net autotrophic. Biomass was generally highest at ombrotrophic sites and sites downstream of canal inputs. Mean biomass over all our study sites was high, 1517.30 g AFDW m-2. Periphyton was phosphorus-limited. Average periphyton total phosphorus content was 137.15 μg P g-1 and average periphyton total N:P ratio was 192:1. Periphyton N:P was a sensitive indicator of water source. Even at extremely low mean water total phosphorus concentrations (≤ 0.21 μmol l-1), we found canal source effects on periphyton dynamics at sites adjacent to canal inputs, but not downstream of inflows. These canal source effects were most pronounced at the onset of wet season with initial rewetting. Spatial and temporal variability in periphyton dynamics could not solely be ascribed to water quality, but was often associated with both hydrology and water source.

KW - Everglades

KW - Hydrology

KW - Periphyton

KW - Phosphorus

KW - Water quality

UR - http://www.scopus.com/inward/record.url?scp=33746704897&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746704897&partnerID=8YFLogxK

U2 - 10.1007/s10750-006-0134-z

DO - 10.1007/s10750-006-0134-z

M3 - Article

AN - SCOPUS:33746704897

VL - 569

SP - 223

EP - 235

JO - Hydrobiologia

JF - Hydrobiologia

SN - 0018-8158

IS - 1

ER -