Aquatic Larvae

Many insects which are terrestrial as adults have aquatic larvae. Notorious among these are mosquitos. Most aquatic insects have aquatic larvae.

Caddisfly Nymph

Caddisfly Nymph
Trichoptera

Caddisfly larva build tube-like cases of sand, sticks, leaves, or other material.

Stonefly Nymph

Stonefly Nymph
Neophasganophora spp.
larva to 2″


Dragonfly

Dragonfly – Adult & Nymph
Anax spp.
larva to 1 “
adult to 3″

The clumsy-looking Dragonfly larva is actually a fierce predator, with protrusible jaws like something out of “Alien”. Adults are often seen buzzing around ponds and lakes.



Dragonfly
Dragonfly
Dragonflies are anything but tame – this one was blown out to sea and exhausted

algae
A garden of green and brown algae grows on a shallow rock. Enteromorpha (Hollow Green Weed) and Fucus (Rockweed)

In our waters, plants and algae are found only in shallow water where sufficient light can penetrate for photosynthesis. It would be unusual to find algae below 10-20 ft, so our wrecks and reefs, despite the profusion of attached organisms, are actually devoid of plant life! Of course, that is completely neglecting the microscopic algal plankton that is so profuse in our waters and so lacking in the clear water of the tropics.

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