Dinnissen company profile

With over 150 permanent employees and an extensive network of agents all over the world, Dinnissen is a global player in the feed, food, pharma and chemical sectors.

They are always looking for new and innovative solutions for complete processes, system integrations or standard products – many of which they develop, test and produce in-house!

 
Visit the website HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by Perendale Publishers Ltd

For additional daily news from aquaculture around the world: aquaculture-news

Blue mussels’ ability to buffer against environmental stress shows great potential for aquaculture

An article recently posted on phys.org highlighted the ability of blue mussels to change patterns of gene expression, allowing proteins to better cope with heat stress and facilitate energy production.

 

Blue mussels
Image credit: Katrin-Lena on Flickr
(CC BY-ND 2.0)

Visiting Professor to the school of Marine Sciences at the University of Maine, Sarah Kingston explained how this ability makes blue mussels more resilient to high ocean temperatures, acidification, and less food. She also noted each of these environmental factors are getting worse in the Gulf of Maine and are expected to worsen even further in the future.

It was also noted how the scientists findings have important implications for aquaculture, where future studies could identify the genes underlying variance in the calcification rate of shells. Dr Kingston pointed out that it could be useful to selectively breed mussels to be hardier.

Read the full article on the phys.org website, HERE.

The Aquaculturists

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Study into the effect of microplastics on fish quality and health

A study is underway in New Zealand at NIWA's aquaculture research facility near Whangarei to better understand how fish are being affected by micro plastics. The species being used in the study is snapper (Lutjanidae) a popular recreational fish species in New Zealand.

Auckland University masters student Veronica Rotman, under the supervision of NIWA fisheries scientist Dr Darren Parsons, is undertaking the two-part experiment to understand how one of the world's most pervasive pollutants is affecting fish in New Zealand waters.
 

Microplastic
Image credit: Oregon State University on Flickr
(CC BY-SA 2.0)

Ms Rotman says little research has been done in this area and she saw an opportunity to undertake some work that was relevant to New Zealand.

'It's critical to find out what's going on with plastic in our ecosystems, I want to see whether the plastic is egested, remains in the gut or migrates to other parts of the fish, including the flesh we eat.'

Using some coloured polystyrene, one of the ocean's top five plastic polluters, and a blender to  generate microplastics between 50 microns and 2mm in size, Ms Rotman then soaked some samples in the Waitemata Harbour for just over a month to mimic similar conditions fishes experience in the environment.

Read the full article on the NIWA website, HERE.

The Aquaculturists

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