MarineMesh Brochure - OneSteel

INTRODUCING A NEW SCHOOL OFTHOUGHT ON AQUACULTURE.ANTI-PREDATORY FISH NETSMADE FROM STEEL.

AFTER 100 YEARS SUPPLYING FENCIFOR THE LAND, WE’VE CAST OUR NET

OneSteel is known across Australia asa manufacturer of high quality Waratah ®fencing products.From our beginning in 1884, whenwe started making galvanised wire rabbitnetting, we have gone on to become aworld leader in wire galvanising andcoating technology.This technology has resulted in fencingmaterials so enduring they can stand up tothe ravages of nature for generations.Now we have turned our attention tothe sea, and to applying our expertise tothe needs of the aquaculture industry.NG PRODUCTSA LITTLE WIDER.It has led to the development of arevolutionary new anti-predatory systemusing fish nets made from steel wire mesh.This system is designed to reducelosses from predator attacks and minimisethe labour costs associated with netchanging and repairs.

MarineMesh chain link weave provides flexibility.MarineWire.Ordinary wire.Steel WireSteel Wire(UHG) Coating>610g/m 2Zinc Coating50g/m 2This drawing is not to scale.MarineWire has a coating weight 12 times that of ordinary wire.The double knot of MarineKnuckle gives it greater strength and flexibility.

A defensive barrier of steel mesh calledMarineMesh forms the basis of our newanti-predatory fish farming system.The key to its impenetrability lies in thequality of the steel wire used. It’s madefrom ultra heavily galvanised wire calledMarineWire. This wire ensures greater protectionfrom the number one enemy of steel –i.e. corrosion – by providing multiplelayers of protection.It incorporates a tough alloy layer anda zinc coating that has twelve times thecoating weight of ordinary galvanised wire.For added strength, it has been finishedWHAT’S BEHIND OUR NEW DEFENCE SYSTEM.with a double knot called MarineKnuckle .Tests* have shown that this finish providesmore than three times the edge strength ofordinary chain mesh.Together with the chain link weave,the MarineKnuckle finish also enables theMarineMesh net to flex easily in marineenvironments.All of which helps to ensure that withMarineMesh fish nets you can provide asecure environment for growing fish.*OneSteel trials conducted in June 2000.

*Trials carried out in NSW, Northern Territory and TasmaniaIT’S NOT SOMETHING PREDATORS WILL WANT TO

From all experience to date* not eventhe most persistent of predators – sharks,seals, sea lions or crocodiles – have beenable to breach the underwater defences ofthe MarineMesh anti-predatory system.As a result, losses from direct kills, aswell as losses incurred through predatorcreatedholes, have been eliminated.As well as creating a safer environmentfor growing fish, this also provides secureworking conditions for your divers withinthe MarineMesh nets.What’s more, using a single MarineMeshnet as a grower net avoids the need forextra predator nets.SINK THEIR TEETH INTO.

Synthetic net after 4 months in Botany Bay during the summer.MarineMesh after 4 months in Botany Bay during the summer.Net maintains its shape without the need for additional weights.Nets being assembled on site at Bathurst Island.

As well as being predator proof, A better environment for growing fish.the MarineMesh anti-predatory system Biological advantages arising from theprovides a number of other benefits that MarineMesh system will result in a morewill further improve the efficiency and productive growing environment.competitiveness of your business.Reduced fouling leads to better waterFouling significantly reduced.exchange and higher oxygen availability,Fouling, for example, is significantly thereby increasing optimum growingreduced, as most marine organisms find conditions for fish within the nets.it difficult to attach firmly to the zinc Minimising net changes encouragescoated wire.stronger growth by reducing disturbanceWith net changing, cleaning and to fish feeding patterns.repairing accounting for a considerable And by reducing predator attacks,proportion of farm labour costs, the the risk of fish escaping is diminished.MarineMesh system offers the prospect of Suitable for most pontoons and fish species.significant savings.Our engineering team can design aOTHER FRESH ANGLES ON FISH FARMING.Nets are self-weighted.The steel mass of the MarineMeshsystem means that heavy additional weightsare not required to maintain the net’s shape.It also reduces the risk of entanglingother marine animals such as dolphins andturtles in the nets.MarineMesh anti-predatory system thatcan be tailor-made to meet most growerrequirements, whether your pen system isround, square or rectangular.And depending on the particulardesign, nets can also be assembled inremote locations.

Botany Bay, NSW.MarineMesh 10m x 10m x 5m net,attached to a steelsquare pen for farming Snapper.Main predator: sharks.Cardwell, North Queensland.MarineMesh 15m x 10m x 3m netattached to a rectangular penfor farming Barramundi.Main predators: sharks and crocodiles.TESTED IN A VARIETY OF ENVIRONMENTS.Bruny Island, Tasmania.MarineMesh net attached to a 60mcircumference plastic pen for farmingAtlantic Salmon. Launched in Hobart.Main predator: seals.Bathurst Island, Northern Territory.MarineMesh 24m x 24m x 4.2m netattached to a square penfor farming Barramundi.Main predators: sharks and crocodiles.

For further information Freecall 1800 1 STEEL (1800 1 78335) or visit www.onesteel.comOneSteel publications and product literature are available by contacting OneSteel Direct. Freecall: 1800 1 STEEL (1800 1 78335) Freefax: 1800 101 141. Postal:Locked Bag 8825, South Coast Mail Centre, NSW 2521 Australia. Email: onesteeldirect@onesteel.com Visit our website @: www.onesteel.com. This publication hasbeen prepared by OneSteel Market Mills (OneSteel Wire Pty Limited ABN 59 000 010 873). Please note that the specifications and technical data are subject to changewithout notice and to ensure accuracy, users of this publication are requested to check the information to satisfy themselves and not to rely on the information without first doing so. Unless required by law the company cannot accept any responsibilityfor any loss, damage or consequence resulting from the use of this publication. Photographs shown are representative only of typical applications, current at February 2002. This brochure is not an offer to trade and shall not form any part of the tradingterms in any transaction. ©Copyright 2002. OneSteel Wire Pty Limited ABN 59 000 010 873 Registered Trademarks: Waratah® OneSteel MarineMesh TM MarineMesh TM MarineWire TM MarineKnuckle TM Issue 1. Printed February 2002 H&T ONE0635