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
NIWA
NIWA