Latest news with #marineBiodiversity
Khaleej Times
08-07-2025
- Science
- Khaleej Times
UAE authority confirms sea worms spotted at Al Bateen Beach in Abu Dhabi are harmless
UAE authority on July 8 confirmed that the presence of sea worms at Al Bateen Beach in Abu Dhabi is a natural and harmless phenomenon. This clarification comes after a series of viral videos showing the marine creatures sparked curiosity and concern among beachgoers. The Environment Agency – Abu Dhabi (EAD) noted the worms are harmless marine organisms that typically live deep in the sand. The authority emphasised that they play an important ecological role by recycling organic matter and serving as a food source for fish, contributing to the overall health of the marine ecosystem. The EAD explained that the sudden appearance of sea worms may be linked to changes in sea temperature, which can influence their breeding cycles and behaviour. The authority reassured the public that the presence of these creatures is a normal part of the UAE's rich marine biodiversity and poses no danger to beach visitors.
RNZ News
07-07-2025
- Science
- RNZ News
Our Changing World: Tauranga's living sea wall
Sea pods at Tauranga waterfront. Photo: Tauranga City Council Follow Our Changing World on Apple , Spotify , iHeartRadio or wherever you listen to your podcasts Coastal critters have new habitat options along the Tauranga waterfront , thanks to the installation of 100 'sea pods' or 'living boulders' in May 2024. Weighing up to 1.2 tonnes each, the sea pods are indented with holes and crevices that mimic rocky tide pools, providing space for tiny organisms from shrimp to anemones to find a home. One year on, researchers are monitoring the manmade rockpools to find out what species have moved in. Marine scientist David Culliford and students Tiff Cooper and Taylor Rabbitt are monitoring the marine life found in the sea pods over time. Photo: Justine Murray / RNZ Constructed as part of Tauranga City Council's long-term strategy to redevelop the harbour, the sea pods aim to bring back biodiversity often lost in urban coastal areas. David Culliford, marine scientist at Toi Ohomai Institute of Technology, says urban modification over time has impacted marine life. "There's a tapas bar over there and if you look next to that there's some old piles which were part of the original harbour structure, and they're probably about 150 metres back from where we are right now," he says. The 'sea pods' are designed to encourage marine life back into highly modified urban shorelines. Photo: Tauranga City Council Tauranga Harbour, like many other city harbours, sits on reclaimed land. Rockpools and other coastal microhabitats have been covered up to make way for manmade constructions like sea walls or wharves. A 'living sea wall' provides ideal real estate for many shoreline-dwelling species, encouraging biodiversity to recolonise the urban waterfront. The idea of a living sea wall was developed in Sydney, Australia, through 30 years of research. The approach combines engineering and ecological concepts to create designs for pilings, panels and other modules that meet both human construction requirements, and wildlife habitat needs. Specially designed panels were installed on a North Sydney sea wall in 2018. Monitoring the biodiversity over time, researchers found a 36 percent increase in the number of different species living on the sea wall, compared to a sea wall with no modifications. "So we're re-introducing habitat, we're re-introducing habitat variety and so we can increase biodiveristy," says Dr Aria Lee, marine ecologist at Living Seawalls, a programme of the Sydney Institute of Marine Science. A living sea wall in Tauranga comprising artificial rockpools called 'sea pods'. Photo: Tauranga City Council There are now 20 Living Seawall installations across Sydney Harbour, and around 1000 around the world in the UK, USA, Europe, Asia, Peru and, of course, Tauranga. Tauranga's 'sea pods' were designed by Living Seawalls in Sydney. But rather than ship tonnes of concrete across the ocean, silicone moulds were cast and sent to New Zealand for local manufacturing with concrete and recycled materials. Ongoing monitoring is tracking the changing biodiversity as the seasons, weather and tides shift. Monitoring work of the seapods along the Tauranga harbour. Photo: Tauranga City Council Tiff Cooper and Taylor Rabbitt, marine science students from Toi Ohomai Institute of Technology, conduct surveys to record the abundance of different organisms and measure algae cover and growth. Together with David and collaborators from the University of Waikato, they have documented branching algae, colourful sea slugs, and dancing flatworms, as well as "heaps of shrimp", says David. "They seem to be like little shrimp hotels, we find loads of them in here." They even found possible signs of the harbour's unique sneezing sponge colonising the sea pods. This blue 'sneezing sponge' is thought to be unique to Tauranga Harbour. Pictured here with two nudibranchs (sea slugs). Photo: Sam McCormack / iNaturalist NZ (CC BY-NC 4.0) David plans to install GoPro cameras to see what marine organisms take up refuge in the sea pods when they're covered with water at high tide. Plus, the eye-catching structures often elicit questions from curious members of the public. "We always get lots of enthusiasm while we're down here, it's cool," says David. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.
Yahoo
04-07-2025
- Yahoo
Endangered ocean species surprises locals with unexpected beach appearances: 'Not only rare but also potentially troubling'
Manta rays are surprising locals and tourists as they show up on the Mediterranean coast of Spain. According to Focus on Travel News, these endangered species are migratory and spend their spring and summer in the Mediterranean Sea as well as in the deep ocean. Recently, they have been appearing near the shoreline. "Their presence near the shore is not only rare but also potentially troubling," per Focus on Travel News. While a few sightings are common, this spring has seen more than 20 reported, which is far more than typical. Marine biologists view warming ocean temperatures and noise pollution underwater caused by marine traffic as potential factors contributing to the change in rays' behavior. Marine life changing its habits is a growing trend in Spain. Warming temperatures are already altering the plankton cycle, but they are also disrupting fish migration. Additionally, some regions have seen an overpopulation of jellyfish. Manta rays rely "on stable plankton ecosystems. If warming seas continue to disrupt plankton cycles, they could have cascading effects not only on the rays, but also on the broader food chain that supports Mediterranean marine biodiversity," said Focus on Travel News. Sardines in the Mediterranean are also being affected by the changing cycles of plankton. There isn't enough plankton for them, so they are filter feeding like the manta rays, which means filtering in nutrients from the water as well as the food. Unfortunately, this feeding method is causing them to take in more plastic. According to Worldwide Boat, temperatures are rising in the Mediterranean region faster than anywhere else in the world, causing a "threat to both food and water supplies." Many marine life species are endangered in the Mediterranean — one in 10. An estimated 30% of their habitats are also under threat. In addition, water scarcity is causing crop yields to drop and food prices to rise. Should the U.S. invest in building more wildlife overpasses? Absolutely Depends on how we do it Depends on where we do it Nope Click your choice to see results and speak your mind. Scientists are collecting temperature samples, examining behavioral changes, and tracking the movements of rays to gain a better understanding of what is happening. Focus on Travel News wrote: "The increased sightings serve as a reminder that the health of the sea is closely tied to visible changes on our beaches — and perhaps a call to action for both travelers and local communities to engage in ocean conservation efforts." There are many ways that you can help, including taking local action or donating to climate causes that are doing this type of work. Join our free newsletter for good news and useful tips, and don't miss this cool list of easy ways to help yourself while helping the planet.
Sustainability Times
29-06-2025
- Science
- Sustainability Times
'Thousands of Giant Eggs Found': Underwater Volcano Unleashes Terrifying Discovery That Has Marine Scientists in Total Shock
IN A NUTSHELL 🌋 An active underwater volcano near Vancouver Island revealed thousands of giant eggs from the elusive Pacific white skate . . 🔥 The volcanic warmth acts as a natural incubator, speeding up the four-year gestation period of these massive eggs . . 🐟 Adult Pacific white skates grow up to 6.5 feet long, highlighting their adaptation to the cold, deep ocean. long, highlighting their adaptation to the cold, deep ocean. 🌿 This discovery underscores the need to conserve these unique volcanic habitats crucial for marine biodiversity. The vast and mysterious ocean depths have long intrigued scientists and adventurers alike. A recent discovery near Vancouver Island, Canada, has unveiled a breathtaking secret hidden beneath the waves. An active underwater volcano has revealed thousands of giant eggs belonging to the elusive Pacific white skate, a species that thrives in the cold, deep waters of the Pacific Ocean. This remarkable find offers a unique glimpse into the life cycles of deep-sea creatures, highlighting the intricate relationships between geological and biological processes. As researchers delve deeper into this phenomenon, they uncover astonishing insights into marine biodiversity and the role of volcanic habitats in supporting life. The Astonishing Revelation of an Active Underwater Volcano The underwater volcano off the coast of Vancouver Island, once thought to be dormant, came to life during a 2019 expedition led by marine biologist Cherisse Du Preez. This seamount rises approximately 3,600 feet from the ocean floor and is situated roughly 4,900 to 5,200 feet beneath the surface. The expedition revealed that the volcano's geothermal activity emits warm, mineral-rich waters, creating a rich and diverse marine ecosystem. This warmth acts as a natural incubator for the giant eggs, which span 18 to 20 inches in width and require an extended gestation period of four years. This unique environment accelerates the development of young Pacific white skates, giving them a vital advantage in the harsh conditions of the deep sea. The interaction between the volcano and marine life demonstrates the profound influence geological features can have on biological processes. The discovery underscores the importance of underwater volcanic habitats in the life cycles of marine species, offering new perspectives on the delicate balance of ocean ecosystems. 'Lost for 62 Years Then Found Alive': Ultra-Rare Egg-Laying Mammal Resurfaces in Remote Indonesian Rainforest Against All Odds Unique Traits of the Pacific White Skate The Pacific white skate, known scientifically as Bathyraja spinosissima, is a remarkable species adapted to the depths of the Pacific Ocean. These skates inhabit cold waters at depths ranging from 2,600 to 9,500 feet, where they have evolved unique characteristics to survive. Females lay large eggs, investing significant energy to provide essential nutrients for their offspring, a phenomenon known as marine gigantism. Adult skates can reach lengths of up to 6.5 feet, showcasing their adaptation to the extreme conditions of their environment. The volcanic warmth creates an ideal nursery for juvenile skates, described by Cherisse Du Preez as resembling 'almost a coral garden.' This nurturing environment allows young skates to grow and develop before venturing into deeper waters. The discovery near Vancouver Island echoes similar findings near the Galápagos Islands, where volcanic heat was found to aid in the incubation of marine species. These observations highlight the critical role of volcanic habitats in the early stages of marine life. 'Earth Is Being Poisoned From Below': Microplastics Found in Earthworms Threaten Crops, Food Chains, and Human Survival Implications for Marine Research and Biodiversity The active underwater volcano near Vancouver Island serves as a natural laboratory for studying the complexities of marine ecosystems. The geothermal warmth supports a unique biodiversity, offering scientists a rare opportunity to explore how these environments affect marine life development. The discovery of giant eggs in this volcanic setting suggests that underwater volcanic activity may have a more significant impact on marine life cycles than previously thought. A follow-up expedition in 2023 witnessed a Pacific white skate laying an egg at the site, providing valuable insights into the reproductive behaviors of this mysterious species. The presence of multiple species utilizing the volcano as a nursery underscores the broader ecological significance of these habitats. This finding emphasizes the need for ongoing research to better understand the intricate dynamics of ocean ecosystems and their inhabitants. 'Predator Found at 26,000 Feet': Scientists Discover First-Ever Hunter Living in the Abyss of an 8,000-Meter Ocean Trench The Future of Oceanic Exploration and Conservation As we deepen our understanding of underwater ecosystems, the importance of conservation efforts becomes increasingly clear. The discovery of the Pacific white skate's breeding ground within an active volcano highlights the necessity of protecting these fragile environments. With climate change impacting ocean temperatures and ecosystems, preserving these unique habitats is more crucial than ever. Collaboration between researchers and conservationists is essential to ensure the sustainability of these ecosystems, which serve as vital sanctuaries for marine life. Future explorations may reveal even more hidden wonders of the deep, challenging us to reevaluate our relationship with the ocean. What other mysteries lie beneath the waves, waiting to be discovered? Our author used artificial intelligence to enhance this article. Did you like it? 4.6/5 (25)
BBC News
18-06-2025
- Science
- BBC News
Sharks and oysters set to thrive in warmer UK waters
The UK could see a boom in endangered sharks, rays and native oysters as species move habitats to respond to rising ocean temperatures, according to some, including a clam that is the world's longest living animal, could struggle to at the Centre for Environment, Fisheries and Aquaculture Science mapped for the first time how 19 threatened marine species will respond to climate change in UK creatures could find new homes in parts of the North Sea predicted to become biodiversity hotspots in the next 50 years, although the disruption from climate change could also have negative knock-on effects on the marine ecosystem. In May an intense heatwave warmed UK waters up to 4 degrees warmer than usual."As an island nation, we're hugely reliant on the sea for our food and for jobs. Any changes that we see in our seas are particularly impactful," Bryony Townhill, marine scientist at Cefas, told BBC analysis should guide the government as it plans how to ensure so-called Marine Protected Areas (MPAs) continue to protect species even as they change world's oceans are warming as they have absorbed up to 90% of the additional heating created when humans burn fossil fuels like oil, coal and UK seas are a hotspot for these effects of climate change and are among 20 places globally that have warmed fastest over the past 50 communities and sea swimmers have already noticed the difference, with reports of jellyfish swarming near beaches or Mediterranean octopus hauled up in fish this report, scientists looked at two different projections for sea temperatures, salinity and sediment levels until 2060. They compared the changing ocean environment to the preferred habitats of 19 species that are currently vulnerable in the biggest winners are the native oysters, basking sharks, spurdog sharks - which can grow up to 1.6 meters - and thornbacks - a type of ray with mobile species will cope better, whereas static creatures will find it harder to adapt.A small creature called a sea pen, which helps to build reefs, could lose up to 40% of their suitable habitat by the end of the the ocean quahog, a type of clam that can live more than 500 years, making it the longest living animal, is predicted to struggle.A decline in those species could have knock-on impacts on ecosystems and food scientists were surprised by some of the results."I didn't expect that native oysters would do well. Frankly, they've been declining and disappearing for 100 years - and yet the climate model suggests they should be doing fine and perhaps even thriving," says Prof Pinnegar. But he is careful to add that although there are potential new habitats, these vulnerable species must still be protected from threats like fishing equipment, disease or pollution."We're not necessarily promising an increase in numbers - the seas still need to be managed carefully and other pressures reduced if the creatures are to thrive in new habitats," he movement of these 19 marine species is likely to have a knock-on effect on coastal communities in the North Sea, including potentially bigger fish catches, according to Dr findings are published in the science journal Marine Biology.
