Summer cetacean community Hauraki Gulf

Cetaceans were observed from a commercial marine mammal tour vessel on 125 survey trips, and a further 167 trips by the crew of the vessel. Purpose: Feasibility study to investigate the distribution, behaviour and individual identification of Bryde's whales (Balaenoptera edeni) in the Hauraki Gulf.

Summary of cetacean community structure, seasonality and distribution within the Gulf over the summer period 7 October 2000 to 16 February 2001.

Bream Head to Cape Colville.

Approx latitude 36/10'S to 36/10'S

over the summer period 7 October 2000 to 16 February 2001.

Observation aboard 167 survey trips aboard a commercial marine mammal tour vessel. Generally two 5-hour trips per day. Photographic data collection for identification as sea conditions allowed. Frequency of collection: One summer

Sample times limited to commercial operating times, patronage, and sea conditions. Seasonal population estimate only. Data quality: Not reported Attribute accuracy: Not reported Completeness: Not reported

Hardcopy Digital Format: MS Word, MS Excel

Baseline study for further research and management.

Freely available Sensitivity/Confidentiality: None

Completed

Additional comments: Further information, such as SST, water depth and location would provide useful information for management of cetaceans particularly where they move across shipping lanes.