Ocean Sustainability
Over 70% of the earth is covered in water, which serves as a vital resource human subsistence. Contamination and acidification pose major threats to aquatic health and biodiversity. Microbes offer a promising solution in their ability to breakdown contamination from oil spills and plastics. Applied microbiologists can play a significant part in understanding biodiversity, contributing to solutions, and encouraging stewardship.
The impact of microplastics on ocean carbon uptake
Scientists who collected phytoplankton data from various climate zones around the world determined the extent to which growth is limited by microplastics. They have then used this data to calculate the average impact that a certain concentration of microplastics will have on algae in different regions or climate zones, as well as on a global scale.
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Revealing the invisible: a new baseline for Salish sea diatoms answers a global call
Diatoms are powerful in driving roughly 20% of global photosynthesis and forming the very base of marine food webs. Scientists have published a new checklist of 924 diatom taxa alongside a curated dataset of 11,469 records, providing a long-needed foundation for environmental monitoring across the Salish Sea bioregion.
Tiny ocean life helps scientists estimate whale prevalence off the California coast
Using an innovative alternative method, researchers examined microbial “ecological habitats” as highly accurate predictors of how many filter-feeding whales were occupying the California coast between 2014 and 2020 from San Diego to Morro Bay.
Newly discovered microbial world helps protect developing lobsters
As ocean temperatures rise and marine ecosystems change, scientists are working to understand how valuable species like the American lobster will respond. Scientists suggest one source of resilience may come from the microscopic bacterial communities living on lobster embryos.
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Hidden viruses reshape one of Earth’s largest carbon systems, study finds
Viruses play a far more active role in Earth’s carbon cycle than previously understood, according to new research that reveals how they infect and control microbes responsible for carbon production in some of the planet’s largest, darkest ecosystems.
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Marine-inspired sunscreen ingredient made by E. coli
Researchers have engineered microbial “cell factories” to sustainably produce the UV-protective compound gadusol, which could eventually serve as a sunscreen ingredient and an antioxidant additive. Gadusol, found in the eggs of various fish and other marine organisms, helps protect against ultraviolet damage.
Study provides detailed assessment of shifts in toxin producing phytoplankton abundance
Researchers in the UK have shown how the distributions of two phytoplankton groups – known to produce natural toxins that can halt shellfish harvesting – have changed in the North East Atlantic over the last six decades.
Microfossils interpreted as animal traces were actually algae and bactéria
A reexamination of microfossils found in Brazil shows that the marks previously interpreted as traces of worms or other small oceanic animals are actually communities of fossilized microscopic bacteria and algae.
From ocean to gut: The bacteria that shape both human health and marine carbon cycling
A group of researchers has discovered that Akkermansia bacteria are not unique to our guts, but can also be found in the ocean. In both habitats they use similar skills to ensure their survival and success. They seem to carry an old and widespread survival toolkit.
Algal bloom crisis shows climate risks need evaluative governance
Identifying and analysing climate risks is a necessary function of governments, but researchers argue such processes will not lead to effective action without taking additional steps to understand which risks are considered unacceptable by the community and prioritising responses accordingly.
Light without electricity? Glowing algae could make it possible
Researchers successfully turned on the “light switch” in algae and kept them lit up using simple chemical solutions. The finding opens the door for future technologies such as autonomous robots that can operate in dark environments and living sensors for water quality.
Researchers unveil new AI-driven system set to transform coral reef restoration
Researchers have developed a first-of-its-kind bespoke AI system designed to assess coral health and detect early stress. BlueBiome is reimagining coral reef care by applying the same principles of preventive, precision health commonly used in human gut health.
‘Not just hot water’: marine heatwaves can create toxic relationship between seagrasses and microbes
Heat stress from marine heatwaves can create a toxic relationship between seagrasses and a hidden ecosystem of bacteria, transforming a previously beneficial co-existence between marine plants and microbes into a harmful one, a study has found.
Nutrient imbalance may drive coral disease more than heat stress, new study suggests
New research shows that an imbalance of nutrients in seawater can cause coral disease – possibly to a greater extent than that from heat stress of warming oceans. Disruption of the delicate nutrient balance of the sea can destabilise microbial communities that live in harmony with corals.
J. Craig Venter, genomics pioneer and founder of JCVI and Diploid Genomics, Inc., dies at 79
The J. Craig Venter Institute (JCVI) has announced that J. Craig Venter, Ph.D., the Institute’s founder, board chair, and chief executive officer, died in San Diego following a brief hospitalization for unexpected side effects that arose from treatment of recently diagnosed cancer.
New study could help scientists produce more accurate records of past ocean change
Tiny plankton shells used to reconstruct past polar ocean temperatures may contain two different chemical stories, a new study has found.
Crab shell by-products could help regulate the marine lifetime of biodegradable plastics
Researchers show that crab shell by-products can reduce the breakdown rate of biodegradable plastics in seawater by altering the microbial communities that colonize their surfaces, known as the plastisphere.
Lost millennium of Galápagos deep-sea corals linked to major Pacific climate shift
Scientists have discovered that deep-water corals in the Galápagos region vanished for more than 1,000 years before eventually recovering. The findings reveal that deep-water coral ecosystems may be more susceptible to climate change than previously thought.
Researchers come up with novel strategies for coral restoration
Scientists have discovered a new way to help lab-grown baby corals survive through the early life stage. If young mountainous star corals are grown on cement tiles formulated with sodium carbonate, which raises the alkalinity of the water, they survive much better than the average lab-grown corals.
Andes volcanoes – the missing link between algae blooms, whales and climate millions of years ago
Record volcanic eruptions in the Andes could explain the mysterious death of dozens of whales about 5 to 8 million years ago, according to a study. A significant increase in volcanic activity in the Andes peaking between eight and four million years ago likely delivered a significant pulse of nutrients to the Southern Ocean.
Cyanobacteria surprise scientists with evolutionary shift
Researchers report a surprising new discovery—a system thought to separate DNA has developed to sculpt the shape of the cell in cyanobacteria instead. The results shed light on how protein systems evolve and how multicellularity emerged in this type of ecologically essential bacteria.
Researchers uncover a ‘treasure trove’ of bioactive molecules in coral reefs
Researchers have found that coral reefs are home to a vast array of previously unknown bioactive metabolites — small biomolecules that have the biotechnological potential to provide the basis for new drugs, and a host of other products.
Turning microalgae into high-value fuels: biochar-based catalyst unlocks cleaner aromatic production
Scientists have designed a composite catalyst that significantly improves the quality of bio-oil derived from microalgae. By combining biochar with a well-known zeolite catalyst called HZSM-5, the team created a hybrid material that enhances the production of valuable aromatic hydrocarbons while minimizing unwanted byproducts.