You may also want to eat iodine-rich foods like kelp , nori, and other seaweeds as often as once a day, and fish and shellfish two or three times a week.
And our southern waters are incredibly diverse with beautiful sea dragons and hand fish and over a 1000 different varieties of colourful kelp and algae and amazing fish.
Below us the seabed was strewn with small boulders and overgrown with beds of brown kelp .
As it swims over different areas of seabed, a cuttlefish can change colour almost instantly to match its surroundings, taking on a dark brown shade over kelp and turning almost white over sand.
Apart from algae, perhaps we can also bioengineer seaweed or kelp for the same purpose in aquatic fuel farms.
These delicate fish are poor swimmers, but use their leaf-like appendages to help them blend into the algae and kelp surrounding them for protection from predators.
a large bed of kelp
The valued molluscs are fed hand-harvested kelp and some compounded seaweed diet, and are graded at regular intervals over the farming period of 36 to 40 months.
The sea bed was covered by fronds of kelp which swayed to and fro in the water, grabbing our legs as we began our course around the pier's outer edge.
Unlike kelp and other seaweed, sea grasses are descended from terrestrial plants, which adapted to shallow non-rocky coastal waters.