Standard tests

NIWA offers both water and sediment tests, using a range of organisms.

Water tests

Bacteria
microtox
15 min
Invertebrates
waterflea
48 h

amphipod
96 h

mayfly
96 h

midge
96 h
Fish
trout
96 h

bullies
96 h

Inanga
96 h

Acute toxicity (survival) tests – marine/estuarine

Bacteria
microtox
15 min
Invertebrates
amphipod
96 h

wedge shell
96 h
Fish
sand flounder
96 h

Chronic toxicity tests – freshwater

Algae
green algae
72 h growth
Invertebrates
waterflea
14 d reproduction

waterflea
7 d reproduction

midge
7 d reproduction

Chronic toxicity tests – marine/estuarine

Algae
diatom
48 h growth

green algae
48 h growth
Invertebrates
blue mussel
48 h development

 

Sediment tests

Invertebrates
amphipod
10 d & 30 d

clam
10 d & 30 d

aquatic worm
10 d & 30 d

Acute and chronic tests - marine/estuarine

Invertebrates
amphipod 10 d & 30 d

wedge shell
10 d & 30 d

Other species available by arrangement

Prices and turnaround

Prices include the highest level of services, QA and a written report.

Price reduction for volume orders.

Rapid turnaround option available.

Screening tests

Combination of 3 tests:

Freshwater water flea, Microtox, green algae
Marine/Estuarine amphipod, Microtox, diatom

Or: blue mussel embryo, Microtox, diatom

Non-standard tests

Experience with numerous native species.

Short and long-term bioaccumulation in laboratory or,

Field deployments with appropriate organisms:

  • freshwater snails, mussels, freshwater fish
  • mescosms (multi-species testing)

Biomarkers

  • genetic integrity
  • stress proteins and enzymes
  • sub-lethal and chronic effects
Acute toxicity (survival) tests – Freshwater. [NIWA]
Acute and chronic tests – Freshwater. [NIWA]