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Dive Pacific Iss 171 Oct- Nov 2019

New Zealand's dive magazine featuring in this issue: Shooting big sharks, up close; Spearfishing at night!; Remembering a great Kiwi dive pioneer, Wade Doak; Forgotten Vanuatu wreck's claim to fame; The invasive Lionfish - in depth, plus all our expert columnists

New Zealand's dive magazine featuring in this issue: Shooting big sharks, up close; Spearfishing at night!; Remembering a great Kiwi dive pioneer, Wade Doak; Forgotten Vanuatu wreck's claim to fame; The invasive Lionfish - in depth, plus all our expert columnists

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BACK IN THE DAY<br />

DIVE Magazine Vol 7. No 1 Price 25 cents<br />

Sportways bouyancy compensator<br />

Sportways ad published in<br />

Wade Doak’s DIVE magazine<br />

These Buoyancy Compensators were<br />

referred to by divers as toilet seats!<br />

Note: 1) The clear tube running from<br />

the diver’s regulator. This fed the<br />

diver’s exhaust air into the black tube<br />

that has the fine netting on the end.<br />

The air created a mini airlift for<br />

removing fine bottom particles,<br />

exposing a seam of coins. This creative<br />

airlift was a Kelly Tarlton invention.<br />

Quite amazing!<br />

2) The DCP decompression meter<br />

on the diver’s right hand. This was<br />

one of the first times these new<br />

decompression meters were used on<br />

extended decompression dives in NZ.<br />

The silver coins pictured above were<br />

uncovered at the wreck site of the<br />

Elingamite at the Three Kings Islands<br />

1965.<br />

Expedition members were: Wade<br />

Doak. Kelly Tarlton, John Pettit, John<br />

Gallagher, Peter Clemens, Geoff Pearch<br />

and Jaan Voot. Kelly Tarlton most<br />

likely took the picture.<br />

Sightings of pest fish Gambusia wanted in Nelson Tasman<br />

SOUNDINGS<br />

LOCAL NEWS<br />

Gambusia prey on native insects<br />

and fish including whitebait, one of<br />

the world’s most invasive species.<br />

A small, robust fish, it breeds and<br />

spreads very rapidly in spring and<br />

summer with populations able to<br />

expand to 17 times their original<br />

number within five months. It is<br />

illegal to possess, release, buy, sell<br />

or breed them.<br />

“Gambusia threaten native whitebait<br />

species and mudfish by<br />

nipping their fins and eating eggs<br />

and juveniles,” said DOC ranger<br />

Renan Falleiros. “They also reduce<br />

native insect populations.”<br />

Commonly known as mosquito<br />

fish, Gambusia were introduced to<br />

the North Island in the 1930s in the<br />

belief they would control mosquito<br />

larvae. Recent studies have shown<br />

that they are not effective and<br />

can even increase them by eating<br />

mosquitoes’ native predators.<br />

Gambusia were first discovered<br />

in a Tasman pond in 2000. DOC’s<br />

Pest Fish Programme eradicated<br />

Gambusia from over 23 sites but<br />

they are still found at many sites<br />

around Waimea Inlet, Moutere<br />

Inlet, Motueka and Riwaka.<br />

DOC is asking anyone who sees<br />

fish they believe to be Gambusia<br />

to take photos and email details<br />

to rfalleiros@doc.govt.nz. Include<br />

your name, contact number and<br />

details of where and when they<br />

saw the fish.<br />

Male Gambusia grow to 3.5 cm and<br />

females to 6 cm. The fish prefer<br />

slow moving water in creeks,<br />

wetlands, ponds, and estuaries<br />

where there is a mix of salt and<br />

fresh water.<br />

www.dive-pacific.com 45

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