|
|
Fishes are aquatic vertebrates that have fins, gills and
scales. Gills are the part of the respiratory system that
provide surface area for exchanging oxygen and carbon dioxide
under water.
Fish are ectotherms, commonly referred to as
'cold-blooded', meaning their temperature is regulated by the
temperature of their environment. They have a range of diets,
being herbivores, carnivores, or omnivores. Some fish reproduce
by laying eggs, while others reproduce by bearing live young.
California fish species reside in freshwater and coastal/marine
waters. Coastal, or marine fish are an abundant and valuable
resource. However, the ocean's supply is not limitless, and
therefore careful planning and education must be undertaken to
ensure the sustainability of the world's largest food source.
|
|
Giant kelpfish "Heterostichus rostratus" stick close to kelp forest of the Pacific ocean. Their bodies are shaped and colored to help them blend in with the kelp forest. Giant kelpfish are able to hide among a variety of seaweeds because they come in a variety of colors: red, green and brown, along with a series of silvery patterns. Giant Kelpfish can even change colors to match changes in local color just as flounder do.
Giant kelpfish range from Cabo San Lucas, Baja California, to
British Columbia, and from surface waters down to 130 feet.
Rocks covered with seaweed and kelp beds surrounding them
provide the forage and habitat giant kelpfish desire.
Giant kelpfish can grow to 24 inches. A slender fish, they have
an elongated body. Giant kelpfish have a long snout, the tip of
lower jaw is pointed and it extends beyond the upper jaw.
Caudal fin is forked.
|
|
|
Giant Kelpfishes feed on small crustaceans, mollusks, and
fishes. Occasionally caught by anglers but seldom retained, they
are probably more familiar to scuba divers.
Spawning occurs during March through July. During spawning,
which occurs in a territory established by the male, the female
releases her eggs on seaweed while she quivers with the male
next to her, sometimes head to tail. Pink to greenish eggs are
attached to the seaweed by entangling threads that extend from
egg coverings. The male remains to guard the eggs. Transparent
post larvae appear from April through August, usually in shallow
water from 5 to 30 feet.
Giant kelpfish school until approximately 2.5 inches long when
they begin to assume adult colors and become solitary, living
close among seaweeds. As
larval young, giant kelpfish sometimes school with transparent
mysid shrimp. |
|
Giant kelpfish can live for about four years. They enjoy low
rocky terrain with kelp and other large sea weeds.
The
kelpfishes are a family of perciform fishes, which contains
about 40% of all boned fishes. Among other well-known members of this group are cichlids, sunfish/bluegill, damselfish, bass, and of course perch.
Anglers pursuing giant kelpfish should drift through giant kelp
beds since the fish are closely associated with the plants.
When
fishing for this species, small hooks are recommended since the
fish have small mouths. Small shrimp, juvenile clams and other
small invertebrates are used as bait. Squid can also be used if
cut into small pieces. |