Ballast Blog – Invader of the Week – Barred Knifejaw

Malin Group Ballast Blog

Five years have passed since the magnitude 9 earthquake struck Japan, unleashing a savage 133-foot high tsunami which claimed the lives of 16,000 people. Upon its retreat, the giant surge of water carried an estimated 5 million tons of debris out to sea – including Japanese docks, ships and household items, which are still arriving along the Pacific coast of the US and Canada five years later.

How to Choose a Ballast Water Treatment System: the Do’s and Don’ts

Malin Group Ballast Blog

With the number of ballast water treatment systems on the market ever on the increase, one would think that it would be fairly straightforward to find one that is suitable. Sadly though, choosing the right BWTS for a vessel is a task that couldn’t be further from ‘straightforward.’ The list of factors to weigh up before making a decision is enough to leave even the most experienced in the industry with a headache. We hope that you find this short list of do’s and don’ts helpful. Don’t: 1. Pick a system based on price alone. The price may make some …

Ballast Blog – Invader of the Week – Chinese Mitten Crab

Malin Group Ballast Blog

And the new winner of Invader of the Week is… Eriocheir Sinensis, aka The Chinese Mitten Crab!

Native to the Yellow Sea region of China and Korea, they were first found in Germany in 1912. Before long, droves of this eight-legged army had spread to Denmark, Poland, Belgium, Sweden, the UK and Ireland. By the 1960’s they we’re found to have traveled as far as the Great Lakes.

Ballast Blog – Invader of the Week – Quagga Mussel

Malin Group Ballast Blog

This week’s invader of the week is the Quagga Mussel

The Quagga Mussel (Dreissena Rostriformis Bugensis) is a species of mussel native to the Black and Caspian seas, thought to have been transported to Western Europe and North America through ships’ ballast water. Whilst not posing a direct predatory threat to local species, the Quagga Mussel does significantly disrupt the local aquatic lifecylce due to its prodigious filtering of the local water of important phytoplankton and suspended particulates, with each mussel capable of filtering up to one litre of water per day. The Quagga Mussel’s tenacious breeding abilities make it a significant economic threat to industrial and civil areas.

Ballast Blog – Invader of the Week – Killer Shrimp

Malin Group Ballast Blog

This week’s invader of the week is the Killer Shrimp.

The Killer Shrimp (Dikerogammarus Villosus) is actually an amphipod, rather than a shrimp, but earns its reputation from its aggressive and vicious behaviour. Native to the Black and Caspian seas, it is thought to have been transported to Western Europe and, most recently, the United Kingdom via the ballast water and hulls of ships.

Ballast Blog – Invader of The Week – Asian Shore Crab

Malin Group Ballast Blog

Much of the marine industry is focused on the commercial issues with regards to ballast water treatment. To raise the awareness of the ecologic issue of invasive species, BWC will be now be posting an “Invader of the Week” blog post each week. This week it is the delightful Asian Shore Crab…