Please select your home edition
Edition
Marinepests  2021 - 728x90px-3 TOP




Marine Biosecurity: Commercial dredging company an early adopter of marine biosecurity protocols

by Clean Below? Good to Go 18 Nov 17:34 NZDT 18 November 2021
Heron barges working on projects in Lyttleton © Heron Construction Company

The Heron Construction Company is a commercial vessel operator that takes marine biosecurity seriously. It goes to great efforts to keep its barges, tugs and dredgers clean when they move up and down the country to build and maintain ports, wharves and marinas.

Heron recognised that marine biosecurity was going to be influential in its business operations earlier than many.

Marine Manager Warren Harris recalls, “We move around quite a bit with our gear, to different ports. We wanted to be compliant, and to tick the boxes.”

Heron got involved in 2018 by providing feedback to government departments on proposals to help make sure they were workable for the marine industry to implement. The company introduced its own comprehensive biofouling management plans in 2018.

Thanks to the early start, it’s now a normal part of operations for the business to have an underwater hull inspection and a cleanliness certificate issued for all its vessels, before they move from port to port.

Heron has an overarching Biofouling Management Plan to document its policy and processes, a Biofouling Management Plan for each vessel, and also a Vessel Record Book for each vessel.

To prevent biofouling, Heron vessels use a high end antifoul system and are routinely hauled out every 2.5 years, and surveyed in between times by divers. Underwater inspection reports, where hull, fittings, niches and voids are all inspected and photographed by divers – and cleaned when required, with detailed records kept. Records are also kept when the vessels are laid up in the water for any period of time – because this allows biofouling to accumulate.

Warren does believe there is still work to do in terms of making rules more consistent - not only between regions but also between countries – and also boosting up cleaning facilities.

He says that while a Heron vessel will always arrive at a site, such as a port, clean, it can spend months in one location, picking up marine growth in niche areas. Often, in water cleaning is not permitted, and finding a way to clean the vessel can be challenging. He’d like to see more suitable infrastructure for vessel operators trying to arrange cleaning – something that councils and waterfront infrastructure operators are also addressing through the establishment of new facilities and investigating other options in some regions. Many regional councils are also involved with the Marine Biosecurity Toolbox, a research program working to come up with new practicable solutions to assist boaties (and marinas) to help keep their boats/structures clean.

The team at Clean Below? Good to Go says good job, Heron Construction Company. Your efforts for demonstrating conscious biosecurity efforts that make great business sense, as well as helping New Zealand in the war against marine pests.

Related Articles

Marine Biosecurity: Gotchya! A good news story
What happened when this marine pest was found in Tauranga An example of how surveillance is working to protect our coastlines from marine pests: The invasive Lightbulb sea squirt (Clavelina lepadiformis) was detected at Sulphur Point Marina in Tauranga, and here's how it was eradicated. Posted on 12 Nov
Marine Biosecurity: The speed cost of a dirty hull
A clean hull benefits a boat's performance – and a dirty hull reduces it. But exactly how much so? “Ask any racing yachtsperson if their boat is slower when fouled, even with a bit of slime,” says antifoul coating specialist Kevin Purdy. “The answer will be an emphatic yes.” Posted on 29 Oct
Marine Biosecurity: Five alternatives to Antifoul
Antifoul is considered our best line of defence against marine pests, but it's not the only option. Antifoul is considered our best line of defence against marine pests, but it's not the only option. From simply using your boat more often, to sophisticated technologies, here are some other options to consider. Posted on 21 Oct
Marine Biosecurity: Line of first defence
Part 1 in a series about anti-foul coatings from the team behind ‘Clean Below? Good to Go' Part one in a series of three articles about antifoul coatings from the team behind ‘Clean Below? Good to go' addresses how the global industry is coming up with solutions to biofouling challenges. Posted on 13 Oct
Hunt for marine pests gets underway
Divers will start checking moored and berthed vessels, and marine structures for marine pests. Summer surveillance is set to get underway again soon, with divers in Northland, Auckland, Bay of Plenty, Waikato (Coromandel), Gisborne and Hawkes Bay and checking moored and berthed vessels, and marine structures for marine pests. Posted on 4 Oct
Biosecurity Rules issued for Aotea Great Barrier
Aotea Mana Whenua imposes a rahui on some areas of Aotea Great Barrier to control new seaweed pest If you're planning to sail to Aotea Great Barrier Island, there are currently biosecurity rules in place there to control a newly discovered seaweed pest. Aotea Mana Whenua governance group has imposed a rahui over the same areas. Posted on 27 Sep
Marinepests  2021 - 728x90px-3 BOTTOMMarinepests  2021 - 728x90px-5 BOTTOMMarinepests  2021 - 728x90px-4 BOTTOM