Atlantic Cod & Tomcod

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Atlantic Cod
Atlantic Cod
Tomcod
Atlantic Tomcod

Cods are easily identified: they all have three separate soft-rayed dorsal fins and two separate soft-rayed anal fins. They also have a sensory barbel on the chin, although in some species this is so reduced as to be virtually absent.

Atlantic Cod Gadus Morhua have been devastated by centuries of overfishing, and large ones are now rare. Some scientists doubt whether the population can ever return to its former level.

Atlantic Cod grow to 4-1/2 ft and 60 lbs, although the record is 6 ft and 211 lbs. A typical fish nowadays is about 10 lbs. Cods are bottom-oriented, and likely to be found in dark places during the day. The meat is excellent eating. I have seen large individuals with an overall steel gray coloring, unlike the illustration.

The Tomcod Microgadus tomcod is a miniature Cod, growing to only 15 inches, and found in shallower waters than its bigger brothers. The rounded tail distinguishes it from other types. It may also ascend rivers.

Atlantic Cod
Atlantic Cod
Tomcod
Tomcod ( in aquarium )

Sea Squirts

Molgula manhattensis ( right )
Styela Partita
( left )

Sea Squirts are found attached intertidally to subtidally. They show an extraordinary tolerance for brackish and polluted water, which makes them highly survivable in urban areas. Sea Squirts, usually about an inch in diameter, are capable of ejecting a stream of water when agitated, hence the name. Usually found in groups of several animals. See also: Horned Salp.

Tunicates are much more advanced in the evolutionary scheme of things than anemones, having, for example, a circulatory system. The larvae actually even have several features in common with vertebrates, including the precursor of a spinal cord, but these are lost in the sac-like sessile adults.

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