14 Ocak 2013 Pazartesi

California State Fish

California State Fish

Golden Trout (common name)
Oncorhynchus mykiss aguabonita (scientific name)

Overview

The golden trout is native only to California and was named the official state fish by act of the state legislature in 1947. The fish has golden flanks with a red, horizontal band along the lateral line and 10 dark oval marks, called "parr marks," on each side. Dorsal, lateral and anal fins have white leading edges. In their native habitat, adults range from 6–12 in (15–30 cm) long. Fish over 10 inches (25 cm) are considered large.
Originally the species was found only in a few streams in the icy headwaters of the Kern River, south of Mount Whitney, the highest peak in the United States outside of Alaska. Populations have been in steady decline for decades. As a result, the California Department of Fish and Game signed an agreement with federal agencies in September 2004 to work on restoring back-country habitat.

Close-up

STATUS
Official
PHYSICAL DETAILS
Length: 6–12 in (15–30 cm)
Weight: up to 11 lbs (5 kg)
Width: 3.5 in (8.9 cm)
LIFESPAN
Up to 9 years
HABITAT
Range: Native to California's Golden Trout Creek, Volcano Creek, and the South Fork Kern River, as well as nearby creeks. Non-native populations can be found in New Mexico.
Water type: Freshwater
Water temp: 58–62°F (14–17°C)
Elevation: 10,000 ft (3,000 m)
Conservation Status: Not evaluated
DIET
Mayflies, gnats, mosquitoes, stoneflies, ants, beetles, spiders, dobsonflies, worms and larvae; vegetable detritus, plankton, trout eggs, and other small fish are also sources of nutrients.
REPRODUCTION
Fertilization: External
Spawning frequency: Once a lifetime
Mating behavior: Distinct pairing
Egg laying: Unguarded, in sand or gravel
USES
Game fish
OTHER NAMES
none
TRIVIA
  • Originally the California golden trout was placed in the species Oncorhynchus aguabonita. Most taxonomists now classify the golden trout as a subspecies of the rainbow trout, Oncorhynchus mykiss, placing it with several other subspecies commonly known as Redband Trout.
  • In 1978, federal legislation created the 303,000-acre Golden Trout Wilderness in Northern California, which encompasses most of the Kern Plateau. The U.S. Forest Service and the California Department of Fish and Game developed a management plan to restore and maintain golden trout habitat.
  • The world record golden trout was caught on August 5, 1948, from Cook Lake in the Wind River Range of Wyoming. That fish was 28 inches (70 cm) long and weighed 11.25 pounds (5.1 kg).

Click to enlarge an image
State Fish
California Golden Trout
State Fish
Juvenile California Golden Trout
State Fish
California Golden Trout Fingerlings at Fish Hatchery
State Fish
California Golden Trout Natural Habitat

CLASSIFICATION
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Salmoniformes
Family:Salmonidae
Genus:Oncorhynchus
Species:O. mykiss
Subspecies:
O. mykiss
aguabonita
Raw Data Source: U.S. Fish and Wildlife Service
Author: World Trade Press

California State Fish

Garibaldi (common name)
Hypsypops rubicundus(scientific name)

Overview

The bright orange garibaldi is the largest member of the damselfish family. It looks like an oversized goldfish, with a roughly oval body and visible scales. Its tail fin has a deep notch that creates almost equal rounded upper and lower lobes. It also has triangular rear fins on both its back and its belly, the upper fin being slightly larger. A garibaldi usually has a small mouth with noticeable lips and a sloping head with a noticeable bump on its forehead. Its eyes are green and very visible against the fish’s orange scales. An adult garibaldi is colorful, but a young fish is even more so. It has a redder body covered with small and bright iridescent blue spots. As the fish ages, it gradually fades to bright orange all over.
A garibaldi prefers shallow waters up to about 100 ft (30 m). Males and females are solitary with a distinct home range, which a male fish in particular will defend from intruders. Groups of these fish can be seen during mating season, at which time the male builds a nest where one or more females deposit eggs. The male stays near the nest and keeps predators away until the young hatch. The garibaldi became California’s official "marine fish" in 1995.
ALSO KNOWN AS
Ocean sunfish, golden perch

Close-up

STATUS
Official State Marine Fish
PHYSICAL DETAILS
Length: 12 in (30.5 cm); maximum 14 in (36.6 cm)
Weight: 12 in (30.5 cm); maximum 14 in (36.6 cm)
LIFESPAN
Up to 17 years. Average 12 years.
HABITAT
Range: Rocky bottoms in open areas and protected shallow bays in the southernmost parts of California and Mexico.
Water type: Shallow saltwater
Water Temp: 59°F
Elevation: 45-95 ft (14–29 ft)
Conservation Status: Least concern, though catching garibaldis for the saltwater aquarium industry has reduced the overall population.
DIET
Underwater invertebrates such as worms, small shellfish, crabs, and shrimp, small sea anemones, bryozoans, and sponges.
REPRODUCTION
Fertilization: External
Spawning frequency: Annual
Mating behavior: Multiple pairings
Egg laying: Guarded, in red algae
TRIVIA
  • A garibaldi male clucks to attract mates and thumps to intimidate intruders.
  • A garibaldi cleans and re-uses the same nesting site every year.
  • A female Garibaldi will readily eat her own eggs. The male has to drive her away before she does.
  • Though a male defends his nest vigorously, he will sometimes eat a clutch of eggs if it seems that he can attract more females and more eggs with an empty nest.

Click to enlarge an image
State Fish
Garibaldi Fish
State Fish
Close-up of Garibaldi

CLASSIFICATION
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Perciformes
Family:Pomacentridae
Genus:Hypsypops
Species:H. rubicundus
Raw Data Source: U.S. Fish and Wildlife Service
Author: World Trade Press

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