New Jersey Scuba Diving

Freshwater Plants

These are all true plants. In freshwater, much of the algal growth is in the form of slimes that grow on rocks, plants, and other surfaces, and of course microscopic phytoplankton. While freshwater algae is an important part of the ecosystem, it is not very remarkable to the typical scuba diver.

Algae

Microscopic Filamentous Green Algae — Microscopic Filamentous Green Algae ( plankton and attached )

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Cattail

Cattail

Typha latifolia

Size: to 7 ft

Habitat: water's edge

Notes:

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Arrow Arum

Arrow Arum

Peltandra viginica

Size: to 5 ft

Habitat: water's edge

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Great Duckweed

Duckweed

Spirodela polyrhiza

Size: to 0.1"

Habitat: floating free at surface

Notes: Among the smallest seed plants; important food for many waterfowl.

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Yellow Water Lily

Yellow Water Lily

Nuphar advena

Size: to 9" (leaves)

Habitat: rooted in muddy bottoms with leaves floating at the surface

Yellow is the most common color, but you may also find white and pink.

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Hornwort

Hornwort

Ceratophyllum demersum

Size: to 10 ft

Habitat: beneath the surface in quiet waters

Notes: May form dense thickets

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Squids

Longfin Squid

Loligo pealei

Size: to 17"

Habitat: Generally deep waters, but moves inshore in the summer. I have seen small ones at depths of 50-70 ft and babies in the rivers.

Notes:

Longfin Squid

The squid is a mollusk, related to snails and clams. These animals travel in schools, swimming backwards by jet propulsion. Small specimens are nearly transparent except for the eyes. Tropical squids can show considerable intelligence and curiosity, but northern versions are, well, just stupid. I have seen huge schools of small transparent squids offshore, just their eyes visible, like black marbles. In the rivers, I have seen small schools of purple squids, and tiny colorless babies drifting in the current. All are predatory.

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