Interrelationships among hydrological, biodiversity and Land Use Features of the Pantanal and Everglades
Biogeochemical Segmentation and Derivation of Numeric Nutrient Criteria for Coastal Everglades waters.
FIU Henry Briceño. Joseph N. Boyer
NPS Joffre Castro 100 years of hydrology intervention …urban development 1953 1999
Naples Bay impacted by drainage, channelization, and urban development
FDEP 2010
SEGMENTATION METHOD
Six basins, 350 stations
POR 1991 (1995)-1998.
NH4, NO2, TOC, TP, TN, NO3, TON, SRP, DO, Turbidity, Salinity, CHLa, Temperature
Factor Analysis (PC extraction)
Scores Mean, SD, Median, MAD
Hierarchical Clustering
NUMERIC NUTRIENT CRITERIA
The USEPA recommends three types of approaches for setting numeric nutrient criteria:
- reference condition approach
- stressor-response analysis
- mechanistic modeling. least, twicethreein consecutive years. average concentrationof annualgeometricmeansshouldless be than to, or at equal ASegment’s 1 reach in year possiblelevela segment’s averageconcentrationof annual geometricmeanscan ASegment’s AnnualMeanGeometric(AGM) Limit that a station concentrationcanat reachtime any AStation’s NeverExceedto Limit (NTE)
- in - 3 Years(1in3) Limit
. This limit isthethata segment level . This is the highestpossiblelimit level
. This limit isthe highest 80% 1in3 90% AGM 95% NTE AGM : Annual Geometric Mean Not to be exceeded 1in3 : Annual Geometric Mean Not to exceed more than once in 3 yrs Biscayne Bay, Annual Geometric Means
0.7 AGMAGM Limit : Not to be exceeded 0.6 (Annual Geometric Mean not to be exceeded)
1in31in3 Limit : Not to exceed more 0.5 (Annualthan Geometric once Mean in not 3 to beyears exceeded more than once in 3 yrs)
0.4
0.3 Total Nitrogen, mg/LNitrogen, Total
0.2 Potentially Enriched
0.1 SCO NCO SNB NCI NNB CS SCM SCI MBS THRESHOLD ANALYSIS
Regime Shift Detection methods (Rodionov 2004)
Cumulative deviations from mean method CTZ CHLa Zcusum Threshold
20
0
-20
Cusum . Cusum - -40
-60 CHLa Z CHLa
-80
-100
-120
0.001 0.010 0.100 1.000 TP (mg/l)
Main TP Threshold 0.06
0.05
0.04
0.03
mg/lTP 0.02
0.01
0.00
CI
GI
CL CL
LK LK
CS CS
EB
PD
UK UK
SCI
IGS
MK MK
MR
NCI
CTZ CTZ
SFB
BLK
CFB
SCB
BKS
NPL NPL
OFF
BKB
SCO NFB
SNB
OGS
IWW
NCO
SCM NNB
MBS
SRM
WFB
PINE
MGS
ECFB
MAR
WWB WWB
COCO MARC BB FB FK PIRB SHELF WWB-TTI Interrelationships among hydrological, biodiversity and Land Use Features of the Pantanal and Everglades
Biogeochemical Segmentation and Derivation of Numeric Nutrient Criteria for Coastal Everglades waters.
FIU Henry Briceño. Joseph N. Boyer
NPS Joffre Castro Hydroperiod Whitewater Bay- Pine Island- Biscayne Bay Florida Bay Florida Keys Shelf 10,000 Islands Rookery Bay POR Jun/96 to Sep/08 Mar/91 to Dec/07 Mar/95-Oct/09 Sep/92-Sep/08 May/95-Sep/07 Jan/99-Sep/09 TN TN TN TN TP TN Input TP TP TP TP TN TP CHLA CHLA CHLA CHLA CHLA CHLA Variables TOC TOC TOC TOC NOX TOC SAL_S SAL SAL SAL NH4 SAL_S for DO_S DO DO DO TOC DO_S TURB TURB TURB TURB SAL_S TURB NOX TON TEMP NH4 DO_S NO3 Factor NO2 NO3 TURB NO2 NH4 NO2 NH4 SRP NH4 SRP Analysis SRP TEMP Stations 30 28 155 47 49 29 Factors 5 6 4 4 4 5 Acct Variance 73% 79% 66% 75% 63% 81% Clusters n=9 n=6 n=7 n=8 n=3 n=7 Card Sound (CS) Central Florida B. (CFB) Back Bay (BKB) Black River (BR) Inner (IGS) Collier Inshore (CI) North Central Inshore (NCI) Eastern-Central (ECFB) Back Shelf (BKS) Coastal Transition Z. (CTZ) Mid (MGS) Estero Bay (EB) North Central Outter (NCO) North Florida B. (NFB) Lower Keys (LK) Gulf Islands (GI) Outter (OGS) Marco Island (MARC) Northern North Bay (NNB) Coastal Lakes (CL) Middle Keys (MK) Internal Waterways (IWW) Naples Bay (NB) South Central Inshore (SCI) South Florida B. (SFB) Upper Keys (UK) Mangrove Rivers (MR) Pine Island S. (PINE) South Central Mid Bay (SCM) West Florida B. (WFB) Marquesas (MAR) Ponce de Leon (PD) San Carlos B. (SCB) South Central Outter (SCO) Offshore (OFF) Shark River Mouth (SRM) Cocohatchee (COCO) Southern North Bay (SNB) Whitewater Bay (WWB) Manatee-Barnes Sound (MBS)