Consent requirement survey to monitor potential ecological effects on fish processing effluent from a seabed diffuser located 350 m offshore.

Temporal coverage: 1980 (baseline) 2000-2011 (on-going monitoring)

Number of sites: 9 sites Nelson Haven Boulder Bank, Nelson

Sampling Frequency: 5 yearly

Main marine environment sampled: Coastal (Boulder bank)

Depth zone: Subtidal (7-8 m)

Sediment type: Primarily hard

Community association: Rocky reef

Sampling method: Photo-quadrats, sediment cores

Parameters collected: Sediment, epi-fauna (images only)

Measured variables: Sediment: chemistry, particle size, organic content, TKN, HG levels; Community: epi-fauna composition (using dots on rocks (DOR) analysis from images

Species/Community data: Benthic invertebrates, algae

Other data collected: Unknown

Collection: ongoing

Quality assurance: Yes