Posts about ocean

Sustainable Ocean Farming

Farming the Sea: why eating kelp is good for you and good for the environment

There are serious problems with our ability to grow healthy food for the number of people we have today (and will have in the future). Innovations have allowed us to feed ourselves. But the damage done to topsoil and other damage including pollution of our rivers is huge. Overfishing and factory farms are keeping us going today but are doing immense damage and are not sustainable.

Seed companies abusing the corrupt government patent systems creates even more damage. We need better solutions. We have many people doing great things but we need to do much more. Ocean farming is one of many areas we should expand. And we should greatly reduce the use of factory farms, antibiotics for livestock, overfishing and the overuse of pesticides.

How an Army of Ocean Farmers are Starting an Economic Revolution

So we all went on a search for sustainability. I ended up in Northern Canada on an aquaculture farm. At that point aquaculture was supposed to be the great solution to overfishing, but when I got there I found more of the same, only using new technologies to pollute local waterways with pesticides and pumping fish full of antibiotics.

I never thought climate change had anything to do with my life. But it does. From my vantage point, climate change is not an environmental issue at all — it’s an economic issue.

As ocean farmers, we reject aquaculture’s obsession with monoculture, an obsession similar to that of modern land farming. Our goal is diversity. It’s a sea-basket approach:We grow two types of seaweeds, four kinds of shellfish, and we harvest salt. But with over 10,000 edible plants in the ocean, we’ve barely scratched the surface.

Instead of repeating history we’re building infrastructure from seed-to-harvest-to-market. We’re starting nonprofit hatcheries so that our farmers can access low-cost seed. We’re creating ocean seed banks so that the Monsantos of the world can’t privatize the source of our food and livelihoods.

Related: SelFISHingThe State of the Oceans (2011)Rethinking the Food Production System (2008)

Cleaning Up the Plastic Pollution in Our Oceans

This is an interesting talk on an important topic: cleaning up plastic in the ocean. ,a student from the Netherlands, looked to find a solution to a problem others said couldn’t be solved.

This is exactly the type of wonderful activity that inspired people can accomplish using science and engineering. He collected an understanding of the 50 issues that supposedly makes a solution impossible.

After getting funding (sparked by an explosion of viral social media) he worked on exploring the “insolvable” problems (having withdrawn from school to work on this problem). It is wonderful to see what we can do when inspired people use science and engineering to make the world a better place.

From their website, The Ocean Cleanup

In the feasibility report, we estimated that a 100-kilometer array operating in the North Pacific gyre for 10 years could remove 42% of the plastics in the area, or an estimated 70 million kilograms.

The plastic will be stored in an internal buffer within the platform at the tip of the V-shaped array. The plastic in the buffer will regularly be emptied onto a vessel that comes to collect it for transport to land. This will occur approximately once every six weeks, depending on the size of the vessel.

Besides monetary support, your relevant knowledge and skills may be a very welcome addition to The Ocean Cleanup. Our work requires not only scientific and technical expertise, but also assistance with legal, commercial and policy matters. If you would like to get actively involved in our work, If you would like to get actively involved in our work, please visit the careers page.

They aim to put a full scale pilot project in place in 3 to 4 years.

Related: Albatross Chicks Fed Plastic Ocean Pollution by ParentsAltered Oceans: the Crisis at Sea (2006)Using Robots to Collect Data on our OceansDead Zones in the Ocean

Ocean Exploration – Live Feed and Highlights

Nautilus Live provides a live view of the E/V Nautilus as it explores the ocean studying biology, geology, archeology, and more. The site also includes highlights such as this video of a siphonophore.

Siphonophores are actually made up of numerous animals even though they look like one animal. These amazing colonial organisms are made up up many smaller animals called zooids, and can be found floating around the pelagic zone in ocean basins. The Portugese Man O’ War is a famous siphonophore.

Each zooid is an individual, but their integration with each other is so strong, the colony attains the character of one large organism. Indeed, most of the zooids are so specialized, they lack the ability to survive on their own.

Related: Giant Star Fish and More in AntarcticaHydromedusae, Siphonophora, Cnidarians, Ctenophores (what are jellyfish?)Macropinna Microstoma: Fish with a Transparent HeadLarge Crabs Invading Antarctic as Waters Warm

Here is another video from Nautilus, showing a large dumbo octopus:

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Deadly Trio of Acidification, Warming and Deoxygenation Threaten Our Oceans

An international panel of marine scientists is demanding urgent remedies to halt ocean degradation based on findings that the rate, speed and impacts of change in the global ocean are greater, faster and more imminent
than previously thought.

Professor Dan Laffoley, International Union for Conservation of Nature, said: “What these latest reports make absolutely clear is that deferring action will increase costs in the future and lead to even greater, perhaps irreversible, losses. The UN climate report confirmed that the ocean is bearing the brunt of human-induced changes to our planet. These findings give us more cause for alarm – but also a roadmap for action. We must use it.“

Results from the latest International Programme on the State of the Ocean (IPSO)/IUCN review of science on anthropogenic stressors on the ocean go beyond the conclusion reached last week by the UN climate change panel the IPCC that the ocean is absorbing much of the warming and unprecedented levels of carbon dioxide and warn that the cumulative impact of this with other ocean stressors is far graver than previous estimates.

Decreasing oxygen levels in the ocean caused by climate change and nitrogen runoff, combined with other chemical pollution and rampant overfishing are undermining the ability of the ocean to withstand these so-called ‘carbon perturbations’, meaning its role as Earth’s ‘buffer’ is seriously compromised.

Professor Alex Rogers of Somerville College, Oxford, and Scientific Director of IPSO said: “The health of the ocean is spiraling downwards far more rapidly than we had thought. We are seeing greater change, happening faster, and the effects are more imminent than previously anticipated. The situation should be of the gravest concern to everyone since everyone will be affected by changes in the ability of the ocean to support life on Earth.”

Among the latest assessments of factors affecting ocean health, the panel identified the following areas as of greatest cause for concern:
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Add Over-Fishing to the Huge Government Debt as Examples of How We Are Consuming Beyond Our Means

Fish are hidden under the water so the unsustainable harvesting isn’t quite as obvious as the unsustainable government debt but they both are a result of us living beyond our sustainable production. You can live well by consuming past wealth and condemning your decedents to do without. That is the way we continue to live. Over-fishing a century ago was not as obviously dangerous as it is today. But we have witnessed many instances of overfishing devastating the fishing economy (when the fishing is unsustainable the inevitable result is collapse and elimination of the vast majority of the food and income that previous generations enjoyed).

The normal pattern has been to turn to more aggressive fishing methods and new technology to try and collect fish as over-fishing devastates yields. This, of course, further devastates the state of the resources and makes it so recovery will take much much longer (decades – or more).

New research shows the existing problems and the potential if we apply science and planning to manage fisheries effectively.

Using new methods to estimate thousands of unassessed fisheries, a new comprehensive study provides a new view of global fish stocks. The results show that the overall state of fisheries is worse than previously thought. Unassessed stocks, which are often left out of global analyses because of a lack of data, are declining at disturbing rates. When these fisheries are taken into account, the results indicate that over 40 percent of fisheries have crashed or are overfished, producing economic losses in excess of $50 billion per year.

The good news is that this decline is not universal: fisheries are starting to rebound in many areas across the globe and we can learn from these examples. Recovery trends are strongest for fisheries where data on the status of the fishery exists, and in which managers and fishermen have made science-based decisions and stuck with them in the face of political pressure.

The amount of fish brought to shore could increase 40 percent on average – and double in some areas – compared to yields predicted if we continue current fishing trends.

The management solutions to overfishing are well known, tested and proven to work. While these solutions are not “one-size-fits-all” for fisheries, there are common themes. Specifically, managers and fishermen must: 1. Reduce fishing to allow stocks to rebuild; 2. Set catches at a sustainable level that is based on the best available scientific and economic information rather than short-term political pressures; and 3. Prevent dangerous fishing activities that destroy habitat, wildlife, or breeding fish.

The over fishing problem is difficult because our nature is to ignore problems that are not immediate. But the costs of doing so are very large. If we don’t behave more wisely our children will pay the price. And, in fact, this problem is so acute now that those of us that expect to live a couple decades can expect to pay the price. In rich countries this will be tolerable, a bit less fish at much higher prices. In rich countries food prices are a minor expense compared to the billions of those not living in rich countries. They will suffer the most. As will those that have jobs directly dependent on fishing.

Related: Fishless FutureEuropean Eels in Crisis After 95% Decline in Last 25 yearsLet the Good Times Roll (using Credit)SelFISHingRunning Out of FishThe State of the Oceans is Not GoodChinook Salmon Vanish Without a Trace

Mother Polar Bear Giving Her Cub a Helping Paw

Another reminder to thank your mother. See previous at cat mom playing the hero.

Related: Friday Fun: Mother Bear Rescues Cub From a TreeBackyard Wildlife: BearsBackyard Wildlife: Mountain LionThe Cat and a Black Bear

Scientists Singing About Science

Fun video with scientists singing about science.

More scientists singing science songs: Friday Fun, Large Hadron RapCambrian Explosion SongThe Sun is a Miasma of Incandescent PlasmaProtein Synthesis: 1971 Video

Using Robots to Collect Data on our Oceans

Interesting idea to use self propelled robots to provide data on the oceans. They use no fuel to move, they use wave energy. They also have solar panels on the top. The wave gliders can travel to a distant area, collect data, and return to base. One of the big problems with convention methods of collecting data on the oceans is the large costs of placing the buoys (and the cost of servicing them).

Related: Wave Glider – The State of the OceansAutonomous Underwater Robot Decides on Experiment OptionsAltered Oceans: the Crisis at Sea

Sex and Development of Life in the Ocean

TED education is providing access to really interesting education material. In this webcast learn about fertilization, development and growth in the ocean depths.

Related: Hydromedusae, Siphonophora, Cnidarians, CtenophoresDarwin’s JellyfishThe Secret Life of PlanktonResearchers Explain How Rotifers Thrive Despite Forgoing Sex

The Secret Life of Plankton

Fun video with great shots of exotic ocean life that forms the base of the food chain in the ocean from TED Education.

Related: Hydromedusae, Siphonophora, Cnidarians, CtenophoresMilestones on the Voyage to the Bottom of the SeaMacropinna Microstoma: Fish with a Transparent Head

Dolphins Saved by People

Is this a bit like man bites dog? In any case it is a happy event. I wish I could have helped.

Related: Florida Dolphin Develop Unique Strategy for Hunting FishDolphin Rescues Beached WhalesFriday Fun: Dolphins Play with Air Bubble RingsDolphin Delivers Deviously for Rewards

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