Although salmon are known to be a good source of healthy omega-3 fatty acids, farmed fish typically contain much less of them than their wild counterparts. Norwegian scientists are working on a solution to that problem, in the form of fish feed made from a genetically-engineered plant.
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Even though tilapia may be raised on farms, the food that they eat still contains ecologically-important fish that are caught in the ocean, depleting wild stocks. That's why Dartmouth College scientists are now looking at replacing the fishmeal in that food with existing algae meal.
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One of the world's most commonly farmed fish, tilapia are typically raised in square pens and get fed by hand a few times a day. New Brazilian technology that does away with those factors, however, is claimed to reduce both expenses AND fish mortality rates.
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In 2015, a startup called Aqua Design Innovations launched a low-maintenance home aquaponics system that relied on the natural filters to keep its waters clear. The company raised a lot of cash in the process, and is now building on that success with a bigger system that accommodates more plants.
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A study from UCLA suggests that if fish farming can be moved offshore, then an area of sea the size of Lake Michigan (0.025 percent of the ocean's surface), could meet the global demand for fish and allow wild stock to recover.
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It's one of the great ironies of aquaculture – although the fish come from farms, the food that they eat contains wild-caught fish. A few years ago, however, a study showed that prawns could be fed microbes instead of fish byproducts. Now, another study has concluded the same thing about tilapia.
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Following what it describes as an "exhaustive and rigorous scientific review," the US Food and Drug Administration (FDA) has today announced the approval of the first ever genetically-modified animal for human consumption.
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eFishery hopes to alleviate environmental waste problems associated with overfeeding on fish farms. Its smart feeding device works by detecting hungry fish behavior and dispensing the proper amount of feed.
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Forward Thinking Architecture's triple-decker Smart Floating Farms would feature 2.2 million square feet (2.04 sq km) of fish farm, hydroponic garden, and rooftop solar panels to power a floating barge, which could be anchored to the beds of oceans, lakes or rivers.
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Seaweed is widely considered to be a health food. Bacon, on the other hand, isn't. There may yet be hope for pork belly lovers around the world, however. Scientists have patented a lab-bred strain of dulce seaweed, that they claim has "a strong bacon flavor" when fried.
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