News
Great Barrier Reef Corals are ‘eating plastic’, say scientists
It’s been discovered that the Great Barrier Reef’s corals are starting to eat plastic, causing concern among marine biologists.
Coral consumes practically anything that is available in the water. When microplastics are present in the ocean, corals will consume them. Unfortunately microplastics can’t be processed by the corals, and the substance collects within their digestive systems.
“If microplastic pollution increases on the Great Barrier Reef, corals could be negatively affected as their tiny stomach-cavities become full of indigestible plastic,” said Mia Hoogenboom from the ARC Centre of Excellence for Coral Reef Studies at James Cook University.
Microplastics are common throughout many of the World’s oceans. Negative environmental impacts of contamination by these fragments can be severe, particularly in regions occupied by inshore coral reefs, researchers report. Despite their effects on marine lifeforms, little is known about the effect of microplastics on the ocean environment.
Waters surrounding the Great Barrier Reef were studied and found to contain various forms of plastics, including polystyrene and polyethylene, although their concentrations were limited.
To test how these tiny pieces of plastic can affect lifeforms in the Great Barrier Reef, researchers placed corals into a tank laced with microplastics. Investigators found the corals started to eat the pollution within just a couple of days.
“Corals get energy from photosynthesis by symbiotic algae living within their tissues, but they also feed on a variety of other food including zooplankton, sediment and other microscopic organisms that live in seawater. We found that the corals ate plastic at rates only slightly lower than their normal rate of feeding on marine plankton,” said Nora Hall, a James Cook University graduate.
In fact, the researchers discovered that the corals consumed microplastics at nearly the same rate as they do plankton. When researchers examined the corals, they found plastic stuck inside digestive tissue within the polyp of the marine organisms. This could suggest that the pollution could prevent corals’ ability to digest food effectively.
Future research will examine the effect these microplastics have on the health of corals, as well as other marine species. Part of this study will determine if fish around coral reefs also consume plastics, and how the pollution could alter their digestive processes.
Source: www.techtimes.com
After a two-year tour of UK art galleries, community spaces and aquariums, the Shark Trust’s acclaimed Oceanic31 exhibition takes its final bow at the Royal Geographical Society later this month. And the unique collection of artwork, depicting 31 species of oceanic sharks and rays, donated by 31 artists, is now open for bids from art lovers and shark enthusiasts. The online auction, launched today, will close on the 7th December at 8pm (BST). The money raised will support the Shark Trust Oceanics Programme.
People can now bid on 27 of the artworks by visiting this website:
https://superstars-auctions.com/sharktrustauction
It is a chance to own a beautiful piece of original art and to support the Shark Trust. The timing of the auction also means that these would make a very special Christmas gift for any shark-lover.
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- Bigeye Thresher Shark by Janina Rossiter
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- Carcharodon carcharias by Jimmy Higgs
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- Croc VR 2030 by Tom Mead
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- Oceanic Whitetip by ATM
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- Silky Street by ScapaJoe
The diversity of pieces mirrors that of the sharks and rays they represent. You can bid on paintings, digital creations, sculptures, mixed media and more. You can pick your favourite artist or species of shark. Or you can select the perfect artwork to make a statement in your home or office. Whichever you choose, you will be supporting the work to protect these amazing animals.
One of the pieces of art has been selected to be auctioned live by Steve Backshall at the For the Love of Sharks event at the Royal Geographical Society in London on the 29th November. In addition to this, two further pieces will be raffled at this event, giving people a chance to win an incredible piece of shark art. For the Love of Sharks is the Shark Trust’s flagship evening. A night to celebrate sharks. Steve Backshall is the headline speaker at this event that will see other prominent shark advocates join him on stage.
Tickets for the event can be snapped up here:
https://thesharktrust.org.uk/Event/flos24
Those that would like to see the Oceanic 31 exhibition have one final chance. It is being displayed at the Pavilion at the Royal Geographic Society from 26th November until the 7th December. Entry is free.
Find out more here:
https://www.rgs.org/events/upcoming-events/oceanic-31
Paul Cox, Shark Trust CEO, Said “This exhibition has given us the opportunity to reach out to a new audience. And inspire more people with the wonderful sharks and rays on which our Big Shark Pledge campaign is based. We are immensely grateful to the 31 artists who have worked so hard to create these works.”
Bid for your favourite Oceanic 31 artwork here:
https://superstars-auctions.com/sharktrustauction
Banner Image: Smooth Hammerhead by Alicia Hayden
Cozy and warm in cold water.
It’s drysuit season all year round. With the new RS series premium drysuits from DYNAMICNORD, divers are perfectly equipped for all cold waters.
The sophisticated cut of the RS drysuits allows complete freedom of movement, providing maximum comfort. The high-quality 350 g/m² ripstop material with double ripstop zones on the elbows, knees, and crotch protect ensures extreme robustness as well as long life.
The suit’s features leave nothing to be desired: A high-quality TiZip zipper, easily adjustable inlet and outlet valves, upgradeable with electrically heated underwear, HP bottleneck cuffs made of high-strength latex on the wrists, a 3mm neoprene neck cuff for maximum comfort, a 7mm hood with air outlet and 3mm boots made of double-sided, cross-layered neoprene with ankle straps and fin strap stoppers and a protective but very flexible sole.
Noteworthy is the Molle fastening system, which can be used in a variable and compatible manner. This way, the two detachable leg pockets can be attached easily, safely and comfortably.
Alterations of boots to a different shoe size or adjustments to neck or wrist cuffs are done free of charge at the own DYNAMICNORD service centre in Germany in only a couple of days.
The matching Dynaskins made with high-quality Polartec® technology are available in various designs. As an undersuit under the drysuit, as a single suit in warm waters or as a two-piece suit. Polartec® technology’s main features are neutral buoyancy, breathablilty and quick-drying.
Dynaskins are made largely from recycled plastic bottles.
The drysuit RS-351 for men and RS-352 for women are now available at your DYNAMICNORD dealer and in the online store.
Colors men and women: Black-Blue and Black-Burgundy
Sizes men: XS-4XL incl. intermediate sizes MS, MT, MLS, MLT, LS, LT, XLS, XLT, 2XLS, 3XLS, 4XLS
Sizes Women: XS-XL incl. intermediate sizes MS, MT, LS, XLS
DYNAMICNORD – Your Outdoor Companion.
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