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  Fishing Methods - Set Nets

Set Net Free Seas Now!

4deaddolphinsSet nets (a type of gill net) are used to catch inshore fish.

They also catch and kill nearly everything that swims into them.

They are one of the least sustainable fishing methods and kill many of our protected species. In particular, set nets are the single largest threat to one of our most vulnerable species at risk of extinction – the Hector’s dolphin.

A national ban on set nets is needed - now!

Set Nets

Set nets are a type of gill net used widely in New Zealand waters by recreational and commercial fishers.

Today nearly all gill nets are made of monofilament nylon strands. Recreational set nets are less than 60m in length and some commercial fishers regularly set 20 km of set nets a day.

When not anchored to the seabed they are called drift nets. Following outrage by New Zealanders when foreign drift-netters moved into the South Pacific, and after a after a long campaign by conservationists, drift nets over 1km long were banned in New Zealand waters in 1989. Small drift nets and set nets are however still legal – putting vulnerable marine mammals and seabirds at risk.

Virtually every fish species sought commercially or valued by amateurs can be caught by alternative methods, such as line fishing and drag netting.

The most commonly targeted fish caught using set nets is Lemonfish (small sharks, also known as Spotted dogfish or 'rig') largely caught to supply Fish & Chip shops.

set netter

Rules for set net fishing
In May 2008 the Government announced new measures to protect Hector’s and Maui’s dolphins. The new regulations include:

North Island west coast - Maunganui Bluff (near Dargaville) to Pariokariwa Point north of New Plymouth:

  • extend commercial and recreational set netting bans from four nautical miles to seven nautical miles offshore

  • ban commercial and recreational set netting:
    • in the Kaipara Harbour entrance (west of a line that runs from Poutu Point to South Head)
    • in the lower part of Port Waikato (refer to map)
    • in the Raglan Harbour entrance (west of a line that runs north-west from Putoetoe Point)
    • further into the Manukau Harbour than the existing set net ban (from Lawry Point south-east to channel marker no. 4, then south-west to a peninsula one kilometre south of Grahams Beach)
  • ban commercial and recreational drift netting in Port Waikato.

South Island south coast - Slope Point in the Catlins to Sandhill Point east of Fiordland:

  • ban commercial and recreational set netting to four nautical miles offshore—except in harbours, estuaries and inlets
  • ban commercial and recreational set netting in the whole of Te Waewae Bay

South Island east coast - Cape Jackson in the Marlborough Sounds to Slope Point in the Catlins:

  • ban commercial and recreational set netting in most areas to four nautical miles offshore, with the following exceptions:
    • commercial and recreational set netting banned to only one nautical mile offshore around the Kaikoura Canyon
    • set netting still permitted in most harbours, estuaries, river mouths, lagoons and inlets except for the Avon-Heathcote Estuary, Lyttelton Harbour, Akaroa Harbour and Timaru Harbour
    • set netting for flounder permitted between 1 April and 30 September in designated flounder areas around Banks Peninsula and Queen Charlotte Sound using defined nets (see maps)

South Island west coast - Cape Farewell in the north to Awarua Point north of Fiordland:

  • ban recreational set netting to two nautical miles offshore
  • ban commercial set netting to two nautical miles offshore between 1 December and 28 February.

For more information, visit MFish

Until these measures come into effect and where set nets are allowed to be used, the main rules for recreational set netting:

  • No person may set or possess more than one net.
  • Set nets must not exceed 60 metres in length.
  • Only one set net (maximum 60 metres) and one bait net (maximum 10 metres with a mesh size of 50mm or less) can be carried on a boat at any one time.
  • Nets (used either individually or jointly) must not extend more than a quarter of the way across any bay, channel, river, stream or sound.
  • No person may set or use a baited net.
  • Set nets must not be set within 60m of another net.
  • Nets must not be set in a way that causes fish to be stranded in the falling tide.
  • A set net may not be used as a drag net if it exceeds 40 meters in length. Total warp length for drag nets must not exceed 200 metres.
  • The use of skates to secure nets is prohibited.
  • Each end of a net must have a surface buoy permanently and legibly marked with the fisher's initials and surname.

Illegal set netting is widespread in New Zealand waters, where an estimated 60,000 recreational fishers use set nets.

If you see an illegal set net please report it to the compliance officer at your local Ministry of Fisheries office or call the Ministry on 0800 4 POACHER (0800 476224).

Even if obeyed to the letter, however, these regulations or even stricter controls can never make set nets environmentally acceptable.


Graph based on data from DoC's national mortality database (Jan 2000 - April 2007)

 

Death of Hector’s dolphins

The Hector’s dolphin is the world’s rarest marine dolphin.

Entanglement and drowning in set nets is responsible for over 60 per cent of all known causes of reported Hector’s dolphin deaths. This is based on reported deaths only. Given that many entanglements go unreported, the actual number killed by set nets may be much higher.

In a 1999/2000 survey of twelve commercial fishers who used set nets, a quarter admitted they had caught Hector's dolphins, while all but one admitted catching other dolphins and seals.

Dolphins are marine mammals - they live in the sea but breathe air. The lungs of Hector’s dolphin are small - only about the size of human lungs - so it only takes one or two minutes for them to drown.

 

Who is responsible?

Data on all known set net entanglements from DoC's National mortality database (Jan 2000-April 2007) show that the recreational fishing sector is responsible for most South Island Hector’s dolphin deaths. However, the commercial sector is also responsible for dolphin deaths.

Current regulations on set nets however are largely focused on recreational net use only.

 

Deaths of other marine life

Set nets kill nearly every fish, bird and marine mammal that swims into them. They are perhaps the most wasteful and indiscriminate fishing method ever developed.

The following birds, marine mammals, sharks and turtles have been reported caught in set nets in New Zealand waters:Crested grebe; Sooty shearwater; Fluttering shearwater; Hutton's shearwater; Yellow-eyed penguin; Blue penguin; Fiordland crested penguin; Gannet; Black shag; Pied shag; Little black shag; Little shag; Stewart Island shag; Spotted shag; Brown teal ; Harrier hawk; New Zealand dotterel ; Black-backed gull; Scamperdown beaked whale; Orca; Bottle-nosed dolphin; Common dolphin; Dusky dolphin; NZ sea lion; NZ fur seal; Leathery turtle

Set nets literally strip inshore waters of marine life.

Between the mid-1970s and 1993 more than 50 yellow-eyed penguins, 730 shearwaters and 250 shags were reported drowned in set nets. Slow-growing reef fish are also vulnerable to this method of fishing and easily over-exploited. Sharks, which are particularly vulnerable to fishing (link to shark page) are also caught in set nets, including large species such as Bronze whalers.

Most entanglements of marine mammals and birds are never reported. Some Hector’s dolphin carcasses are found half buried in sand, with tails chopped off or with injuries that suggest attempted disposal.

The reported kills are therefore only the proverbial tip of the iceberg.

Ghost fishing
When set nets are discarded or lost they continue to "ghost fish" for years because they are made of Iong-lasting synthetic plastic.

Many of the dead and injured fish are attacked by marine scavengers, drop out when the net is finally pulled in or are so decomposed they have to be discarded.

Badly placed or lost nets are also dangerous to boats and divers.

Set nets must be banned to help make New Zealand's waters safer for all marine life.

 

International positions on set nets

In many countries the use of set nets is very restricted. Many states in the USA ban or tightly control set nets. In California the set nets are banned in water shallower than 100m. Texas, Florida and Washington have similar bans. Several European states have similar controls, including Denmark, Italy, England and Scotland. In Australia amateur set netting is not permitted except in Tasmania. In Fiji set netting has been banned for 20 years - for testimonials click here (PDF)

As Professor David Gaskin of the University of Guelph, Ontario, said:

“There is hardly a civilised Fisheries Department in the world that would not ban this sloppy terrible method of fishing if the politicians would show some backbone."

 

Why are they still being used?

Good question!

Set netting is indiscriminate, totally unsustainable and killing our protected species.

Virtually every fish species sought commercially or valued by recreational fishers can be caught by alternative methods, such as line fishing and drag netting. Forest & Bird supports a drive in the market to request that species such as those sold in Fish & Chip shops, are caught by sustainable fishing gears and methods other than set nets.

 

Help stop the use of deadly set nets

Support our campaign calling for: Set Net Free Seas

Although in the short term a ban would be opposed by some commercial and recreational fishers, it would protect our vulnerable marine mammals and seabirds and would breathe some life into depleted coastal and reef fish populations which have taken a hammering from this indiscriminate fishing method. A nationwide ban on set nets is necessary even in areas where Hector's dolphins are not found because they kill so many other marine species.

 

What You Can Do

  • Stop using set nets and encourage others to do the same
  • Join Forest and Bird to support this campaign
  • Make a donation
  • Email the Minister of Fisheries (jim.anderton@parliament.govt.nz) and Minister of Conservation (steve.chadwick@parliament.govt.nz) or write to them (Parliament Buildings, Wellington - freepost) calling a national set net ban.
  • Email or write to your local MP and ask them to support the campaign.
  • Download our Disappearing Hector's Dolphin Desktop Image - Don't let this be the last time you see them! Click here for JPEG
  • Email us about your experiences with Hector's dolphins and set nets click here

 

More information on this site

This page was updated on 12 June, 2008



 


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