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#oceans

31 posts30 participants3 posts today
Public
Mongabay

Just 0.001% of the deep seafloor has ever been captured by photo or video images, a new study finds.

That which has been captured is “biased” and potentially unrepresentative: 65% of observations have been in the waters of the United States, Japan or New Zealand, according to the study.

By Edward Carver
news.mongabay.com/2025/05/only

Mongabay Environmental News · Only a tiny % of the deep seafloor has ever been visually observed: StudyFor national and international policymakers, decisions on how to regulate — and whether to allow — exploitative human activities such as deep-sea mining require good information. A new study suggests that when it comes to the ocean floor, they may not have it. Only 0.001% of the deep seafloor has ever been captured by photo […]
#News#Conservation#Environment
Public
earthling

Radiation Status in the Marine World by Manoj Kumar Jindal et al, 2025

Natural radiation is omnipresent everywhere on the earth, and humans cannot avoid it. Natural radiation is a critical aspect in understanding the health issue and predicting the existence of radionuclides.

This book has information about radiation status near the ocean in all areas on Earth.

link.springer.com/book/10.1007

@bookstodon
#books
#nonfiction
#radiation
#oceans

Because the ocean is the source of all materials, and due to the fact that water from everywhere is submerged in the ocean through river networks, the ocean will contain varying radiation doses in every site. Abstract: The oceans, which cover more than 71% of the earth’s surface, are enigmatic and vital ecosystems that play a pivotal role in the planet sustainability. Oceans are believed to have formed from volcanic outgassing and the accumulation of water vapor during the cooling phase of the planet. Ocean water contains essential elements that sustain rich biodiversity and contribute significantly to the global water cycle. The interconnected nature of the oceans influence weather patterns, nutrient cycling and distribution of heat around the planet. Ocean productivity plays a major role in regulating the climate by influencing carbon sequestration and their burial. As anthropogenic activities introduce a large spectrum of pollutants and radioactive substances into the ocean, comprehensive monitoring is essential for developing effective management strategies to minimize the impacts. A comprehensive introduction to the oceans, biogeochemistry and the challenges in the Anthropocene epoch are presented here.
Public
Warren Currie 🦠🦐

Weekend #Plankton Factoid 🦠🦐
Light is an extremely important factor in the oceans. It governs not only photosynthesis, but is also an important cue for vertically migrating zooplankton and needed for visual predation. The finding that 20% of the #oceans, especially at vital polar regions, are increasingly murky over the last 20 years is very worrying. Over 9% had the photic zone reduced by more than 50 m. This will impact #phytoplankton growth and #carbon flux. #science
scitechdaily.com/21-of-the-oce

image/jpeg diffused rays of sunlight are seen from underwater with a lone transparent jellyfish floating in the light column. Photo from Pexels, CC Freerange.
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

Planet’s darkening #oceans pose threat to #marinelife, scientists say
Satellite data and numerical modelling revealed that more than a fifth of the global #ocean darkened between 2003 and 2022, reducing the band of water that life reliant on sunlight and moonlight can thrive in. Effect is evident across 75m sq km (30m sq mi) of ocean, equivalent to the land area of Europe, Africa, China and North America combined, and disturbs upper layer where 90% of marine species live.
theguardian.com/environment/20

The Guardian · Planet’s darkening oceans pose threat to marine life, scientists sayBy Ian Sample
Public
Ika Makimaki

In happier news: 🌊

The EU and six European countries have just deposited their ratification of the Global Ocean Treaty at the UN in New York. 🐙

The specific countries are:
Cyprus 🇨🇾
Finland 🇫🇮
Hungary 🇭🇺
Latvia 🇱🇻
Portugal 🇵🇹
Slovenia 🇸🇮

The EU doesn´t count as a separate ratification, but likely means we will soon see more european countries' official ratification.

We are now at 28/60 ratifications! 🥳
🐳

highseasalliance.org/treaty-ra

High Seas Alliance Treaty RatificationHigh Seas Treaty Ratification TrackerAt least 60 countries must sign and ratify the High Seas Treaty for it to become international law. Join the #RaceForRatification. Ask leaders to ratify the Treaty Now!
#ProtectTheOcean#BBNJ#GlobalOceanTreaty
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