MAIA Core Indicators

This page lists proposed core measurements for MAIA Estuaries. (EMAP protocol unless otherwise specified).

Location (latitude and longitude)
Time and Date of Sampling
Depth of Water Column
Water Column Measurements
- Physical measurements ( At surface and bottom; water column profiles at some stations)
  - Temperature
  - Salinity
  - Dissolved oxygen
  - pH
  - Conductivity
- Water Clarity (Secchi disk or turbidity) (measured once per station)
- Water Column Chemistry (Chesapeake Bay Program Protocol) (surface and bottom)
  - Dissolved silica (SI)
  - Dissolved ammonia (NH4)
  - Dissolved nitrite and nitrate (NO23)
  - Dissolved nitrite (NO2)
  - Particulate organic nitrogen (PON)
  - Total dissolved nitrogen (TDN)
  - Total dissolved phosphorous (TDP)
  - Dissolved orthophosphate (PO4F)
  - Total particulate phosphorous (PHOSP)
  - Particulate organic carbon (POC)
  - Total suspended solids (TSS)
  - Chlorophyll a (CHLA)
  - Pheaophytin (PHEA)
    - CBP derives metrics used in their program as follows:
      - TP = TDP + PHOSP
      - TN = TDN + PON
      - DIN = NO23 + NH4
      - DIP = PO4F
- Sediment Measurements
  - Benthic macroinvertebrates
    - Species composition and enumeration
    - Biomass
    - Silt-clay content (%silt/clay)
  - Observational SAV (in conjunction with benthic gap)
  - Sediment Chemistry (first year only)
    - NOAA NS&T contaminants (see table below)
    - Acid volatile sulfides (AVS) and Simultaneously extractable metals (SEM)
    - Silt-clay content (%silt/clay)
    - Total organic carbon
  - Sediment Bioassay (first year only)
    - Pore Water Concentrations of Ammonia and Hydrogen Sulfide
    - Microtox
    - Ampelisca
    - On a subsample of stations (MD initiative):
      - Leptocheirus plumulosis
      - Cyprinodon variegatus
- Fish Measurements (second year only)
  - Fish tissue contaminants
  - Fish community
  - External pathology
  - Macrophage aggregates
    - Organic contaminants, and major trace elements determined as part of the NOAA NS&T Program.
- Polycyclic aromatic hydrocarbons
  - Low molecular weight PAHs
  - (2- and 3-ring structures)
  - 1-Methyl naphthalene
  - 1-Methyl phenanthrene
  - 2-Methyl naphthalene
  - 2,6-Dimethyl naphthalene
  - 1,6,7-Trimethylnaphthelene
  - Acenaphthene
  - Acenaphthylene
  - Anthracene
  - Biphenyl
  - Fluorene
  - Naphthalene
  - Phenanthrene
  - High molecular weight PAHs
  - (4-, 5-, and 6-rings)
  - Benzo[a]anthracene
  - Benzo[a]pyrene
  - Benzo[b]flouranthene
  - Benzo[e]pyrene
  - Benzo[ghi]perylene
  - Benzo[k]flouranthene
  - Chrysene
  - Dibenz{a,h]anthracene
  - Flouranthene
  - Indeno[1,2,3-cd]pyrene
  - Perylene
  - Pyrene Chlorinated Pesticides
  - 2,4'-DDD
  - 2,4'-DDE
  - 2,4'-DDT
  - 4,4'-DDD
  - 4,4'-DDE
  - 4,4'-DDT
  - Aldrin
  - beta-Hexachlorohexane
  - Chlorpyrifos
  - cis-Chlordane
  - cis-Nonachlor
  - delta-Hexachlorohexane
  - Dieldrin
  - Endosulfan I
  - Endosulfan II
  - Endrin
  - alpha-Hexachlorohexane
  - gamma-Hexachlorohexane (lindane)
  - Heptachlor
  - Heptachlor epoxide
  - Hexachlorobenzene
  - Mirex
  - Oxychlordane
  - trans-Chlordane
  - trans-Nonachlor
  - Polychlorinated Biphenyl congeners (UPAC numbering system)
  - PCB 8, PCB 18, PCB 28, PCB 44, PCB 52, PCB 66, PCB 101, PCB 105, PCB 118/108/149, PCB 128, PCB 138, PCB 153, PCB 170, PCB 180, PCB 187/182/159, PCB 195, PCB 206, PCB 209
  - Major and trace elements
  - Al, Si, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Sb, Ag, Cd, Hg, Tl, Pb
  - Organotins
  - Monobutyltin3+, Dibutyltin2+, Tributyltin, Tetrabutyltin

June 16, 1997

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