Parasites do very well for themselves, which is why they are so common in the animal kingdom.
Mud blister worms make their homes in the shells of oysters and other shellfish, where they weaken their hosts.
Mangroves along Mexico’s Yucatan coastline.
A new study estimates that mangroves prevent over $65 billion in damage from coastal storms every year, and says mangrove protection should be funded in the same way as infrastructure like seawalls.
Oil tankers load up in a port at twilight.
The Great Acceleration inaugurated the Anthropocene in the 1950s. Now, a similar race for resources and space is happening in the ocean.
There are plenty of fish to choose from, but many aspects to consider.
Consumers are increasingly concerned about the sustainability of their fish.
Rendering of the ECF Farmsystems facility in Berlin, Germany.
Combining aquaculture and hydroponics, aquaponics unearths value in "waste" flows and re-routes them back into the economy. It's an inspiring example of how a circular-economy business model can work.
The giant freshwater prawn is native to the Indo-West Pacific from northwest India to Vietnam, Philippines, New Guinea and northern Australia. It has been introduced into many countries for aquaculture.
Entire populations of prawn 'super-females' are now being commercially distributed. The science behind this continues to advance and could have a far-reaching impact on both humans and animals.
Segments of PVC pipe washed up on shore in Denman Sound, B.C.
Paul Nicklen/Sea Legacy
Growing demand for large salt-water clams is leaving parts of the B.C. coast littered with plastic debris.
Ranger Trevor Bramwell on the walk up to the Split Rock art galleries in Cape York’s Quinkan Country in 2017.
The World Heritage Listing for Victoria's Budj Bim fish traps was ground-breaking. Here are five other Australian Indigenous sites that also deserve greater attention.
We’re fish fanatics, with salmon in our sights.
Fish farming has been criticised for a lack of sustainability – here's what has been changing and what still remains a challenge.
Queensland groper, typical of coral reefs off Queensland at 27°S were found in the Bay of Islands, north of Auckland, at 35°S.
Analysis of last summer's heatwave shows it killed farmed salmon and decimated kelp forests, as well as shifting grape harvests and fish spawning times forward by several weeks.
Experimental field of a salt-tolerant rice variety in Bangladesh.
Rising seas and groundwater depletion, both driven by climate change, are making soils saltier in many parts of the world. Farmers will need help adapting, especially in developing countries.
A fisherman on Kwan Phayo.
Philip A. Loring
Many people focus just on agriculture and new technologies for feeding the world's growing population. Yet, fisheries are the centerpiece of billions of people's diets.
Bird’s eye view of an open sea fish farm in, Aegean, Turkey.
Aquaculture is endangering the marine environment, threatening the livelihood of small-scale fishers and food security.
Gulf Coast oysters on the half shell at Wintzell’s, Mobile, Ala.
Oysters are big business along the Gulf Coast, but raising them off-bottom – which yields a premium product – is just starting there. Hurricane Michael showed it won't be easy.
There have been a variety of approaches to tackle malnutrition. The continent needs to learn from past mistakes across the world.
Farmed fish like these carp now make an important contribution to global food security.
Many critics say that fish farms mainly sell their output to wealthy countries and don't provide much benefit to poor people in producing countries. Three aquaculture experts show why this view is wrong.
Colleen Burge counts oysters on an oyster aquaculture lease in California.
Oysters grow in seawater and filter their food from it, so how do you shield them from waterborne diseases? Scientists are working to develop strains that are resistant to a fast-spreading herpes virus.
Pike Place Market, Seattle.
A new study shows that sustainable fish farming in deep ocean waters could produce as much seafood as all of the world's wild fisheries, in a space the size of Lake Michigan or Africa's Lake Victoria.
Giant kelp can grow up to 60cm a day, given the right conditions.
In an extract from his new book, Tim Flannery explains how giant kelp farms could suck carbon dioxide from the air and store it in the ocean's depths, while encouraging species like fish and oysters.
The remains of one of six partially eroded islands in the nation of Solomon Islands.
Due to rising sea levels, low-lying island nations are in immediate danger. If drastic measures are taken, this disastrous trend can be transformed into an opportunity for sustainable development.