Development of a Great Missouri River bio-index River Reference of Condition strata (GRFIn and GRMIC) on the Missouri River

Transcription

1 Development of a Great Missouri River bio-index River Reference of Condition strata (GRFIn and GRMIC) on the Missouri River Select strata Some spatial overlap in assemblages. Separated Upper / Lower at Ponca State Park (~head of navigation & channelization) to respect distinct assemblages and ensure sufficient sample sizes to model. It is not clear whether it is necessary to sample multiplboth for assessment. Macroinvert Snag samples assemblages Fish assemblages 3D stress=.14 R=.59 Kick samples Missouri River Upper Lower 3D stress =.14 R=.65

2 1. Missouri River more stressed Stressor gradient score less stressed St Charles, MO Develop a stressor gradient from abiotic metrics. Lower MO River Kansas City, MO Omaha, NE Gavins Pt Dam Sioux City, IA Bismarck, ND Garrison Dam Ft. Peck Dam Distance from Mouth (km) Included metrics & relationship to stress Total N & P & metals (+) Cl, SO4 (+) DO, conductivity (+) water temperature (+) site-measured fish habitat quality (-) riparian % wetland, % forest (-) 1 km catchment % developed, # dischargers (+) 5 km catchment % developed, % agriculture (+) distance to & population of upriver urban (-,+) slope & variability of lateral channel depth (-) Upper MO River

3 Stressor Score for fish assemblage Stressor distribution Low stress 154 km (<1 th pct) High stress 177 km (>9 th pct) Stressor score for fish by (neg) rkm Stressor score River km

4 Use stressor gradient to validate GRMIC AVkick & AVsnag indices. Kick samples Snag samples 1..8 Upper Missouri.6 Development GRMIC Validation Lower Missouri Stressor gradient score

5 Longitudinal variation in condition GRMIC (AVkick) 1. Missouri River Deficit of good at KC MNRR Gets better moving away from dam Garrison Ft. Peck LDC IDC.2 MDC Distance from mouth (km)

6 GRMIC results by strata and sample type Least disturbed condition (%) Most disturbed condition (%) GRMIC Upper Missouri Lower Missouri Impounded Mississippi Kick samples Snag samples Unimpounded Mississippi Ohio GRMIC and GRFIn condition estimates are relative to stressor gradient within strata. Therefore, absolute scores can not be compared (e.g. a really good site on the OH means it is better than other sites on the OH).

7 GRMIC Scores by state (AV kick) State GRMIC mean (SE) Missouri.421 (.15) Iowa Kansas.44 (.16).339 (.13) 1 Nebraska.446 (/12) South Dakota North Dakota Montana.459 (.26).463 (.26).642 (.17) % Missouri R in state KS (black = lower) MT (red is upper) GRMIC Score

8 GRFIn (Fish IBI) 1 GRFIn by rkm 8 GRFIn Score 6 4 Included metrics prop invertivores prop non-indigenous prop omnivores prop lithophil Minnow richness intolerant richness Bass/crappie richness CPUE centrarchids CPUE round-bodied suckers CPUE great rivers species

9 Osage R. MS R. Stressor Score for fish assemblages by MOREAP segments Simulated distribution (bars) & site means (X) Stressor Score L&C Lake Gavins Pt - Ponca Ponca Sioux City Sioux City Platte R Platte R - KC KC Grand R Grand R. Osage R. Ft Randall Niobrara R Niobrara L&C Lake

10 GRFIn score Ft Randall Niobrara R Niobrara L&C L&C Lake Gavins Pt - Ponca Ponca Sioux City Sioux City Platte Platte R - KC KC Grand R Grand - Osage Osage R. MS R GRFIn (Fish IBI) by MOREAP segments

11 GRFIn CDFs in Lower Missouri River by state 1 Most Disturbed % Missouri River in state (~5% of river) Kansas Missouri Nebraska Iowa South Dakota Least Disturbed GRFIn Score (~11% of river)

12 Ohio : Illinois GRFIn scores by State Reaches MS : Wisconsin MS : Illinois MS : Iowa MS : Missouri MO : SouthDakota MO : Nebraska MO : Iowa MO : Kansas MO : Missouri Ohio : Pennsylvania Ohio : WestVirginia Ohio : Kentucky Ohio : Ohio Ohio : Indiana Mississippi River Missouri River Ohio River MS : Minnesota GRFIn (weighted mean, SE)

13 Stressor gradient and riparian landcover 1. M issouri R iver Stressor scores for inverts.2. S t C h a r le s, M O G a v in s P t D a m Kansas C ity, M O O m aha, N E S io u x C ity, IA B ism arck, N D G a r r is o n D a m F t. P e c k D a m D istance from M outh (km ) %, both % Open = grass, shrub/scrub, & barren St Louis Hermann Jeff City Kansas City St Joseph Omaha Sioux Cit y Gavins Pt Dam Ft Randall Dam Big Bend Dam Oahe Dam Bismarck Garrison Da m Ft Peck Dam WATER_P DEVALL_P AGALL_P FORESTALL_P WETALL_P OPEN_P Riparian land cover (4 m wide shoreline buffer both sides of Missouri River)

14 1. M is s o u r i R iv e r. 8 Biology and riparian landcover GRMIC scores F t. P e c k L D C. 6 M N R R G a r r is o n I D G R F I n b y r k m GRFIn scores 2 % %, both R i v e r k m St Louis Hermann Jeff City Kansas City St Joseph Omaha Sioux City Gavins Pt Dam Open = grass, shrub/scrub, & barren WATER_P DEVALL_P AGALL_P FORESTALL_P WETALL_P OPEN_P Riparian land cover (4 m wide shoreline buffer both sides of Missouri River) Ft Randall Dam Big Bend Dam Oahe Dam Bismarck Garrison Dam Ft Peck Dam

15 Valley (bluff to bluff) land cover WATER_P DEVALL_P AGALL_P FORESTALL_P WETALL_P OPEN_P % St Louis Hermann Jeff City Kansas City St Joseph Omaha Sioux City Gavins Pt Dam Ft Randall Dam Big Bend Dam Oahe Dam Bismarck Garrison Dam Yellowstone R. Ft Peck Dam

16 Missouri River Water Quality summary by state (river-length weighted means) Missouri Iowa Kansas Nebraska South Dakota North Dakota Montana Number of samples Chlorophyll a (mg/l) Chloride (ppm) Conductivity (us/cm) Dissolved oxygen (mg/l) Dissolved P (ppb) Hardness NH 4 (ppb) NO3 (ppb) POC/Total C (%) Secchi depth (cm) SO 4 (ppb) Total dissolved solids (ppm) Total metals (ppb) Total N (ppb) Total Organic C (ppm) Total P (ppb) Total suspended sediment (ppm) Turbidity (NTU) Water temp ( o C)

17 1 9 Nutrients v Stressor gradient (fish, lower river) Total P by SG Dissolve P by SG Total P (ug/l) Dissolved P (ug/l) Stressor gradient (fish) Stressor gradient (fish) Total N by SG NO3 by SG Total N (ug/l) 2 NO3 (ug/l) Stressor gradient (fish) Stresssor Gradient (fish)

18 Water Quality on the Missouri River by river-km Total N (ug/l) 2 NO3 (ug/l) 15 1 NH4 (ug/l) y Total P (ug/l) 6 4 Dissolved P (ug/l) y Chl a (ug/l) % POC of TSS TSS (mg/l)

19 Water Quality relationships on the Missouri River Total P (ug/l) 6 4 Chla (ug/l) Total N (ug/l) TSS (mg/l) Total P (ug/l) 6 4 Total N (ug/l) TSS (mg/l) TSS (mg/l)

20 Osage - mouth Secchi depth (cm) (simulation results) Secchi depth (cm) Ft Randall Niobrara R Niobrara L&C L&C Lake Gavins Pt - Ponca Ponca Sioux City Platte R - KC KC Grand R Sioux City Platte R Grand - Osage