Tracking Porirua's rig sharks



My latest news and musings regarding rig sharks, marine life and Porirua Harbour.

Radio interview audio available

9th March, 2015

| If you missed my interview with Alison Balance from National Radio LIVE, you can listen to the audio at the following link

‘World Famous’ – Rig shark research on National Radio

3rd March, 2015

Today a story made by Alison Ballance from Radio New Zealand’s – Our Changing World was aired for the first time. You can see photos and an introduction to the story (aired this Thursday 9pm) at

Research paper published in Technology Journal

21st February, 2015

A paper written by Peter De Joux and myself was published in the Marine Technology Society Journal, the first page can be seen here.

My shark was just caught by a fisherman!

19th February, 2015

A rig shark I tagged on Monday was caught around 0800 on Wednesday by a guy fishing off the Seaview Peninsula in Pauatahanui inlet.

Whitby Newsbrief article

13th February, 2015

A news article written by Geoff Mowday published in the Whitby Newsbrief talks about the shark research I’m doing in Porirua Harbour.

Windy Waitangi weekend

7th February, 2015

It has been windy for 10 days now and I haven’t found the opportunity to put out any shark tracking tags.

At last I’ve solved it

3rd February, 2015

What do you do when your tagged rig sharks positional data appears to have been cut in half, and 2 lines of data are received rather than 1 line?

Shark attack in Porirua Harbour.

28th January, 2015

What would try to eat a one metre long (~3 kg) rig shark, in a sheltered estuary?

Where have all the sharks gone?

24th January, 2015

I’ve been fishing for 3 days now, without catching any rig sharks! What’s happened to them? Have thousands of sharks suddenly been flushed out of the Harbour?

Building tags today

19th January, 2015

Too windy over this long weekend to track rig, so I’m building tags. Today I finished making the antenna extensions and fitted them to the waterproof housings.

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