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Categories: Biology: Marine, Ecology: Sea Life

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Biology: Marine Ecology: Sea Life Environmental: Ecosystems
Published

'Antisocial' damselfish are scaring off cleaner-fish customers -- and this could contribute to coral reef breakdown      (via sciencedaily.com) 

'Antisocial' damselfish are scaring off cleaner fish customers -- and this could contribute to coral reef breakdown. Damselfish have been discovered to disrupt 'cleaning services' vital to the health of reefs. And climate change may mean this is only likely to get worse.

Biology: Evolutionary Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life Environmental: Biodiversity Geoscience: Environmental Issues
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A labyrinth lake provides surprising benefits for an endangered seal      (via sciencedaily.com) 

The endangered Saimaa ringed seal is an Ice Age relict living in the highly labyrinthine Lake Saimaa, Finland. The newly published work shows that although individual seals have greatly reduced genetic variation, the loss of variation has been complementary, preserving the adaptive potential of the whole population.

Biology: Botany Ecology: Animals Ecology: Endangered Species Ecology: General Ecology: Invasive Species Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems
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Urban ponds require attention to ensure biodiversity      (via sciencedaily.com) 

New research suggests aquatic plants can be utilized as a tool to enhance the co-existence between aquatic invertebrates and their fish predators in urban ponds.

Biology: Microbiology Ecology: Sea Life
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3D printing with bacteria-loaded ink produces bone-like composites      (via sciencedaily.com) 

Researchers have published a method for 3D-printing an ink that contains calcium carbonate-producing bacteria. The 3D-printed mineralized bio-composite is unprecedentedly strong, light, and environmentally friendly, with a range of applications from art to biomedicine.

Biology: Developmental Biology: Evolutionary Biology: Marine Biology: Molecular Ecology: Sea Life
Published

Single gene causes sea anemone's stinging cell to lose its sting      (via sciencedaily.com) 

When scientists disabled a single regulatory gene in a species of sea anemone, a stinging cell that shoots a venomous miniature harpoon for hunting and self-defense shifted to shoot a sticky thread that entangles prey instead, according to a new study.

Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Sea Life Environmental: Ecosystems Geoscience: Oceanography
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Sea stars able to consume kelp-eating urchins fast enough to protect kelp forests, research shows      (via sciencedaily.com) 

Researchers have provided the first experimental evidence that a species of endangered sea star protects kelp forests along North America's Pacific Coast by preying on substantial numbers of kelp-eating urchins.

Biology: Marine Ecology: Endangered Species Ecology: Sea Life Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography
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As sea ice declines in the Arctic, bowhead whales are adjusting their migration patterns      (via sciencedaily.com) 

As sea ice declines in the Arctic, bowhead whales are staying north of the Bering Strait more frequently, a shift that could affect the long-term health of the bowhead population and impact the Indigenous communities that rely on the whales, a new study shows.

Biology: Marine Ecology: Sea Life Geoscience: Environmental Issues
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Diets rich in food from the ocean and freshwater sources can help address nutritional and environmental challenges      (via sciencedaily.com) 

Blue foods -- those that come from the ocean or freshwater environments -- have tremendous potential to help address several global challenges. With careful implementation of policies that leverage these foods, nations could get a boost on efforts to reduce nutritional deficits, lower disease risk, decrease greenhouse gas emissions and ensure resilience in the face of climate change.

Biology: Marine Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems
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New research reveals 12 ways aquaculture can benefit the environment      (via sciencedaily.com) 

Aquaculture, or the farming of aquatic plants and animals, contributes to biodiversity and habitat loss in freshwater and marine ecosystems globally, but when used wisely, it can also be part of the solution, new research shows.

Biology: Marine Ecology: Animals Ecology: Endangered Species Ecology: Invasive Species Ecology: Sea Life Environmental: Ecosystems Geoscience: Oceanography
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Food quality matters for southern resident killer whales      (via sciencedaily.com) 

Not all Chinook salmon are created equal, and this has a major impact on the energetics for southern resident killer whales. A recent study quantified the lipid content in Fraser River Chinook salmon -- the southern resident's preferred meal -- and found that spring-run Chinook salmon, the earliest to arrive to the Salish Sea are lipid-rich and energy dense; a critical factor for the killer whales who prey on them. Fraser River Chinook salmon that come later in the season have lower energy density.

Biology: Marine Ecology: Animals Ecology: Extinction Ecology: Sea Life
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Feathered 'fingerprints' reveal potential motivation for migratory patterns of endangered seabirds      (via sciencedaily.com) 

New research shows that the feathers of seabirds such as the Wandering Albatross can provide clues about their long-distance foraging, which could help protect these species from further decline.

Ecology: Sea Life
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Whales give up singing to fight for love      (via sciencedaily.com) 

Male whales along Australia's eastern seaboard are giving up singing to attract a mate, switching instead to fighting their male competition.

Biology: Marine Ecology: Sea Life Offbeat: Plants and Animals
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How the fastest fish hunts its prey      (via sciencedaily.com) 

Scientists have designed a novel electronic tag package incorporating high-tech sensors and a video camera in order to document a detailed view of exactly how sailfish behave and hunt once they are on their own and out of view of the surface.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography
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Whale warning as clock ticks towards deep-sea mining      (via sciencedaily.com) 

Seabed mining could soon begin in the deep ocean -- but the potential impact on animals including whales is unknown, researchers have warned.

Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Geoscience: Oceanography
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Coral reefs in the Eastern Pacific could survive into the 2060s      (via sciencedaily.com) 

Scientists found that some reefs in the tropical Pacific Ocean could maintain high coral cover into the second half of this century by shuffling the symbiotic algae they host. The findings offer a ray of hope in an often-dire picture of the future of coral reefs worldwide.

Biology: Evolutionary Biology: Marine Ecology: Sea Life Environmental: Biodiversity
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Biodiversity engine for fishes: Shifting water depth      (via sciencedaily.com) 

Fish, the most biodiverse vertebrates in the animal kingdom, present evolutionary biologists a conundrum: The greatest species richness is found in the world's tropical waters, yet the fish groups that generate new species most rapidly inhabit colder climates at higher latitudes. A new study helps to explain this paradox. The researchers discovered that the ability of fish in temperate and polar ecosystems to transition back and forth from shallow to deep water triggers species diversification. Their findings suggest that as climate change warms the oceans at higher latitudes, it will impede the evolution of fish species.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography
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Due to their feed, chicken and farmed salmon have remarkably similar environmental footprints      (via sciencedaily.com) 

We love our chicken. We love our salmon. Thanks to how we farm these two popular proteins, their environmental footprints are surprisingly similar.

Ecology: Sea Life Offbeat: Plants and Animals
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'It's me!' Fish recognizes itself in photographs, say scientists      (via sciencedaily.com)     Original source 

Scientists have demonstrated that fish think 'it's me' when they see themselves in a picture. The researchers found that the determining factor was not the fish seeing their own body but seeing their face.

Biology: Marine Ecology: Extinction Ecology: Research Ecology: Sea Life Paleontology: Fossils Paleontology: General
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Fossil discovery reveals complex ecosystems existed on Earth much earlier than previously thought      (via sciencedaily.com)     Original source 

About 250 million years ago, the Permian-Triassic mass extinction killed over 80 per cent of the planet's species. In the aftermath, scientists believe that life on earth was dominated by simple species for up to 10 million years before more complex ecosystems could evolve. Now this longstanding theory is being challenged by a team of international researchers.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography
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The cod population off the coast of Sweden is not extinct      (via sciencedaily.com)     Original source 

Through DNA analyses, researchers have identified that there are still juvenile coastal cod off the west coast of Sweden. However, it is still difficult to find any mature adult cod in the area.