Kelp plants grow on a 30-foot-long, white PVC pole suspended in the water. If this is successful, instead of just one row, there would be a whole platform, hundreds of meters across and hundreds of meters deep, full of kelp plants. Courtesy of David Ginsburg/Wrigley Institute
Farming seaweed, using the power of the sun and the vast resources of the oceans, is a topic we expect to be featuring more of in these pages, and whether considering it as food or fuel we know the folks at the salt will be one of our primary sources delivering the goods:
The push for renewable energy in the U.S. often focuses on well-established sources of electricity: solar, wind and hydropower. Off the coast of California, a team of researchers is working on what they hope will become an energy source of the future — macroalgae, otherwise known as kelp.
The Pacific Coast is known for its vast kelp forests. It’s one of the fastest-growing plants on Earth, and farming it requires no fertilizer, fresh water, pesticides, or arable land. “It can grow 2 to 3 feet per day,” says Diane Kim, one of the scientists running the kelp research project at the University of Southern California. Continue reading
I’ve posted previously about the lionfish invasion that is threatening coral reef and other marine ecosystems throughout the Caribbean, Gulf of Mexico, and Southern Atlantic Seaboard of the United States.
Much has been made of the spectacular invasive success of the two species of Indo-Pacific lionfish that have established themselves throughout the Wider Caribbean. Not only are the invaders being found at population densities more than ten times those typical in their native range, but they also have been found to grow more rapidly, reaching sexual maturity more quickly, and growing to greater size than do their Indo-Pacific cousins.
Several studies have looked at the genetic make-up of invasive lionfish and have concluded that the populations found in the Gulf of Mexico, Caribbean, and Southeastern seaboard of the United States are all closely related, stemming back to fewer than ten females. Continue reading
A Russian fish farming operation in Ura Bay in the Barents Sea.
Maxim Zmeyev/AFP/Getty Images
Thanks to Alastair Bland and the folks at the salt at National Public Radio (USA) for this look at the prospects for aquaculture on a global scale:
For years, scientists and activists have sounded the alarm that humans’ appetite for seafood is outpacing what fishermen can sustainably catch.
But new research suggests there is space on the open ocean for farming essentially all the seafood humans can eat. A team of scientists led by Rebecca Gentry, of the University of California, Santa Barbara, found that widescale aquaculture utilizing much of the ocean’s coastal waters could outproduce the global demand for seafood by a staggering 100 times. Continue reading
Thanks to the Conversation for highlighting the potential of this inspiring technology.
Bren Smith, an ex-industrial trawler man, operates a farm in Long Island Sound, near New Haven, Connecticut. Fish are not the focus of his new enterprise, but rather kelp and high-value shellfish. The seaweed and mussels grow on floating ropes, from which hang baskets filled with scallops and oysters. The technology allows for the production of about 40 tonnes of kelp and a million bivalves per hectare per year. Continue reading
David Milne, skipper of the MSC-certified trawler Adorn, holds a cod in Peterhead fish market. Photograph: Eleanor Church/Marine Stewardship Council
Cod seems as good as any other creature to feature in a redemption story. The editor of the Environment section at the Guardian shares good news on one lucky population of cod that got the attention they needed, seemingly just in time:
We recently encountered Parley for the Oceans when Doug Aitken’s water pavilion installation came onto our radar.
Both the collaborative ethos and the focus of the cause are dear to our hearts.
Parley is the Space Where Creators, Thinkers, and Leaders come together to raise awareness for the beauty and fragility of our oceans and collaborate on projects that can end their destruction.
Parley for the Oceans addresses major threats towards our oceans, the most important ecosystem of our planet.
We believe the power for change lies in the hands of the consumer – given he has a choice – and the power to shape this new consumer mindset lies in the hands of the creative industries.
Artists, musicians, actors, filmmakers, fashion designers, journalists, architects, product inventors, and scientists have the tools to mold the reality we live in and to develop alternative business models and ecologically sensible products to give us earthlings an alternative choice, an everyday option to change something.
As a company we have a long interest with the concept of non-permanent Art Installations . Installed off the coast of Catalina Island, California, these particular interactive underwater sculptures were a collaboration with artist Doug Aitken , the Museum of Contemporary Art, Los Angeles (MOCA) and Parley for the Oceans.
Due to the temporary nature of the installations, they’re no longer in place but will reopen to the public soon, at a new location, in a new ocean.
Underwater Pavilions is artist Doug Aitken’s large-scale installation and collaboration with Parley consisting of three temporary sculptures submerged beneath the water’s surface. As a symbol and catalyst for the Parley Deep Space Program, the sculptures provide a portal into the marine realm that swimmers, snorkelers, and scuba divers can swim through and experience. Continue reading
Back in August, I shared a short video of this behavior that didn’t do the phenomenon justice. Now, with a couple months of filming opportunities behind me, I’ve been able to put together a much more satisfying compilation of jumping behavior footage:
My previous video of mobula rays jumping Continue reading
Courtesy of Museums Victoria / CSIRO
Thanks to National Public Radio (USA) and Kat Lonsdorf for a brief look into the deep work of Tim O’Hara:
Far below the surface of the ocean, off the coast of eastern Australia is an area simply known as “the abyss.” The largest and deepest habitat on the planet, the abyssal zone stretches well beyond Australia’s waters and spans half the world’s oceans — but it remains largely unexplored. Continue reading
We’ve mentioned Cabo Pulmo here several times in the context of marine conservation, as well as from a personal visit. Although I still haven’t had a chance to go out on a scuba diving expedition here, a couple weeks ago Jocelyn and I were able to accompany some Villa del Faro guests on a snorkeling trip outfitted by Cabo Pulmo Sport Center, which is run by members of the Castro family mentioned in the posts linked above. The tour took two hours, but I’ve condensed the experience into almost fifteen minutes of video that I took on a rented GoPro:
The United Nations Ocean Conference is underway to support the implementation of Sustainable Development Goal 14: Conserve and sustainably use the oceans, seas and marine resources for sustainable development.
The importance of collaboration between public and private sectors to brainstorm innovative solutions to environmental issues is becoming increasingly clear, as is the reality that states and local governments will be the stronger voices for climate activism.
The health of the planet and our oceans are interchangeable, and Sylvia Earle has been the spokesperson for that truth for decades.
Take the extra 18+ minutes to listen to her 2009 TED Prize Talk here.
It has been a long while since our last link to Sea Shepherd news, shame on us, but today we rectify it with news from Seth and Jocelyn’s neighborhood–actually on the Pacific side of Mexico’s Baja California Sur but as close as most people get:
Sea Shepherd’s research vessel the R/V Martin Sheen returned to Mexico’s Guadalupe Island to continue its study of Cuvier’s beaked whales, capturing never before seen drone footage of these rare and elusive cetaceans.
During the two-week expedition, Mexican lead-scientist Gustavo Cardenas Hinojosa and American collaborator Jenny Trickey, deployed various acoustic devices to compare their effectiveness. The scientists will return and leave these devices for a longer period of time. Continue reading
Market-based approaches to controlling invasive lionfish populations were highlighted at a recent GEF event in Grenada.
La Paz Group contributor Phil Karp has long been our guide into marine ecosystems, with both citizen science and social entrepreneurship posts on his work with groups in Belize and other parts of the Caribbean focused on these goals.
This collaboration with Sarah Wyatt, a colleague from the Global Environment Facility, illustrates the on-going market-based approaches to managing the invasive species while creating new cottage industry opportunities.
Seeing a lionfish while diving in the Caribbean is a cause for mixed emotions. On the one hand, one marvels at the exquisite beauty of the fishes’ flowery fins and its amazing adaptability to a range of habitats, from shallow estuaries with low salinity to deep reef environments. But then you remember that these fish don’t belong in the Caribbean, and that the very versatility noted above makes them an invasive menace. Indeed, if the fish you are looking at is a female, she may be carrying up to 30,000 eggs, and may have thirty or more native fish or crustaceans in her stomach.
One of the many impacts of the Anthropocene era on global biodiversity is the increased spread of invasive species, like the lionfish, due to rapid globalization. With the United Nations Ocean Conference taking place in New York next week, the conservation and sustainable use of the oceans and marine resources is high on the international agenda. While long recognized as an environmental and biodiversity threat, invasive species also pose a threat to livelihoods, particularly in developing countries where incomes may be heavily dependent upon a single sector or product.
Traditionally, efforts to eradicate or control invasive species have been focused on public sector interventions. But control efforts are often expensive and are either out of reach, or pose severe strains on limited budgets of developing countries. Hence there has been growing attention to identification of market-based control approaches which create commercial incentives for removing the invaders, providing a financially sustainable means of control… Continue reading
Economic value of coral reefs for tourism (A). This figure summarises the combined dollar values of expenditures for on-reef and reef-adjacent tourism. Reefs without assigned tourism value are grey; all other reefs present values binned into quintiles. Lower panels show Kenya and Tanzania (B), South-central Indonesia (C), and Northern Caribbean, with part of Florida, Cuba and the Bahamas (D). (Further maps can be seen in Appendix A and online at maps.oceanwealth.org
A country that depends on its coral reef to attract visitors, as Belize does, has every reason to pay attention to the various sciences paying attention to those reefs. Mostly marine biologists, perhaps, but also economists. Geeks and wonks are heroically gathering information, processing it, publishing it and if not for The Nature Conservancy’s efforts some of us might not ever see it.
The August, 2017 issue of Marine Policy, an academic journal, carries the article “Mapping the global value and distribution of coral reef tourism” by the scientists Mark Spalding, Lauretta Burke, Spencer A. Wood, Joscelyne Ashpole, James Hutchison, and Philine zu Ermgassen and TNC’s Cool Green Science has a summary in common language. Also they complement the academic illustration above with one of their own:
If it’s true that people reveal their true values by how they spend their money, coral reefs are very valuable indeed. In fact, according to a new study in the Journal Marine Policy coral reef tourism generates $36 billion (U.S) in global value every year. Continue reading
Thanks to contributor Phil Karp for sharing this great example of how peer-peer knowledge exchange can help to replicate and scale up innovative solutions.
Experience from around the world shows that managing fisheries and marine resources works best when responsibility is placed in the hands of local communities. This is particularly true in low-income countries, where there is often limited capacity and infrastructure for fisheries management and conservation.
Locally Managed Marine Areas (LMMAs) are areas of ocean managed by coastal communities to help protect fisheries and safeguard marine biodiversity. Found throughout the world’s tropical and subtropical seas, and encompassing diverse approaches to management and governance, their sizes and contexts vary widely, but all share the common theme of placing local communities at the heart of management.
We have an event coming up that is our main focus now with regard to citizen science. After a few years of linking out to plenty of initiatives in this realm, 2017 is our big year, so to speak. And not only for us, nor only for 2017. We see the trend building momentum. Thanks to the Nature Conservancy and Cool Green Science for this story reminding us of the variety of citizen science projects are out there waiting to be discovered:
As a remotely operated vehicle (ROV) descends into the ocean depths, inky blackness slowly consumes all sunlight. Jellyfish and unidentified floating objects drift by, marine snow shimmers in the vehicle’s headlights. Suddenly, mountains and canyons taller and deeper than any on land materialize out of the darkness. Then, a voice breaks over the intercom, “Bridge, this is Nav, can we move five-meters South and hold position? Okay, let’s get underway again. Bearing 180°, 20 meters.” Continue reading
Cool video from the Red Sea of a moray eel (Gymnothorax javanicus) preying on a lionfish (Pterois miles).
Morays are quick to chow down on lionfish carcasses in the Caribbean and will readily accept (or steal) lionfish off of a spear (although such feeding is a BAD idea as it causes them to associate divers with food).
Let’s hope they will begin to hunt lionfish o their own in the Caribbean as well.
Thanks to National Public Radio (USA) for this story:
by Nell Greenfieldboyce
Baby humpback whales seem to whisper to their mothers, according to scientists who have captured the infant whales’ quiet grunts and squeaks.
The recordings, described in the journal Functional Ecology, are the first ever made with devices attached directly to the calves. Continue reading
We check in with EcoWatch regularly, and from time to time Greenpeace has a surprising piece of content featured, like this 20 Canned Tuna Brands Ranked: How Sustainable Is Your Brand?
What is surprising to me is this pop up call to action, which echoes back at least three decades for me to the first time I heard of Greenpeace, which was also the first time I heard of any issues related to canned tuna, which was also the first time I looked on a map to see where the Gulf of California, and Baja California Sur were situated. It is surprising because on the ranking above, this same tuna is not the absolute worst of the worst. Even more surprising, in its own way, is that Trader Joe’s is even worse in this ranking. Go figure. Anyway, thanks to David Pinsky, Greenpeace, and EcoWatch for this: Continue reading