Hard rock life: Collecting census data on microbial denizens of hardened rocks
Scientists are digging deep into the Earth's surface collecting census data on the microbial denizens of the hardened rocks. What they're finding is that, even miles deep and halfway across the globe, many of these communities are somehow quite similar.
Legumes in fish feed: Can anti-nutritional substances damage health?
Seeds from soya, peas, lupins and other legumes are protein-rich and given to normal livestock during periods of rapid growth, or high egg and milk production. Salmon require overall less feed, but the protein content of the feed must be maintained at a high level. Legumes are therefore appropriate ingredients for fish feed too: easily available on the world market and reasonably priced. But they contain a number of so-called anti-nutritional substances that are alien to salmon and can have a negative effect on the growth and health of salmon.
Slimy tunicates may be worth billions
Tunicates that were placed in the sea six months ago have now been harvested. These ocean weeds can become a new aquaculture adventure.