Ultimate Twist - version 2
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Scientists discover a surprising tradeoff in coral growth linked to the symbiotic algae they host. The research sheds light on the delicate balance that corals strike in adapting to rising ocean temperatures.
Corals derive much of their energy from the algae living within their soft tissue, and it appears that some symbiotic algae species help corals withstand warmer water better than others.
The Cornwall-based manufacturer states that their new Seeker mask was designed with two main objectives: maximise the diver’s field of vision to be as close as possible to the experience of not wearing a mask using a single lens and to fit nearly everyone.
In a joint study, scientists found alarming concentrations of PFAS chemicals in Victoria’s critically endangered Burrunan dolphins.
These chemicals, widely used in food packaging, firefighting foam and non-stick cookware, are sometimes called “forever chemicals” as they almost never break down in the environment.
The distant northwestern Pacific island of Ebadon is one of the most pristine locations left on earth. It is also facing rapid and imminent destruction from increasing storm surge and overwash events driven by man-made climate change. The people of Ebadon, who contribute the least to climate change, will be among the first to be driven from their ancestral lands because of it.
Elasmobranchs have become lucrative targets with the depletion of traditional fish stocks and the surge in the shark fin trade. Although, in recent decades, much scientific evidence has challenged traditional misconceptions, stereotyped media portrayals persist, and they hinder conservation efforts. So, this special issue was created to highlight the complex behaviour and cognition of sharks and rays.
In the northern part of the Great Barrier Reef, hundreds of female green sea turtles are born for every male, as a result of climate change. A study has found that pollution may further worsen this gender bias, pushing the species closer to extinction.
Published in the journal Frontiers in Marine Science, the findings describe how exposure to heavy metals like cadmium and antimony and certain organic contaminants can cause more female green sea turtles to be born.
In November 2019, researchers from University of Plymouth recorded unexpected evidence of coral bleaching more than 90 metres below the ocean surface.
Describing their discovery as a "huge surprise," Dr Phil Hosegood, Associate Professor in Physical Oceanography at the University of Plymouth and lead on the project, said: "Deeper corals had always been thought of as being resilient to ocean warming, because the waters they inhabit are cooler than at the surface and were believed to remain relatively stable."
Explorer Ventures Fleet, a renowned provider of extraordinary liveaboard diving experiences, will have a strong presence at the highly anticipated 2023 DEMA Show in New Orleans, LA.
To safeguard the survival of coral reefs around the world, portable aquariums can be set up in remote areas to propagate young corals that can be used for reef restoration.
Known as ReefSeed, this containerised system is being developed by Australian Institute of Marine Science (AIMS) in collaboration with the Maldives Marine Research Institute (MMRI).
Initially slow, the recovery puzzled scientists in the study, led by marine ecologist Dr Christopher Doropoulos and research co-lead Dr George Roff, together with team members from the University of Queensland and Palau International Coral Reef Center, who expected regeneration to follow traditional patterns, driven by coral spawning events. These events involve the synchronized release of eggs and sperm into the water, leading to the dispersal of coral larvae that settle onto impacted reefs.
We asked our contributors to share their favorite photos that show pairs and companions, or two of a kind, and they returned with a range of macro to wide-angle shots, featuring a variety of marine life large and small from around the world.