ruaya FISH
Ruaya the first link in the life cycle of fish habitat to determine the appropriate conditions for the survival of life stages of fish. Studies on fish ruaya by Cushing (1968) is fundamental to the world's fisheries because knowing ruaya circle will be known fish stocks or sub-regions where the population lives. This ruaya adjustment has meaning, reassurance to the favorable conditions for the existence and for the reproduction of the species.
According Chimit (1960) in Effendie (1997) not all fish do ruaya. There is a fish not a fish peruaya that never leave their habitat. Peruaya fish habitat at a specific time left to carry out certain activities, so there are some species of fish have different ruaya area either seasonally or on the stage of life development.
Ruaya the first link in the life cycle of fish habitat to determine the appropriate conditions for the survival of life stages of fish. Studies on fish ruaya by Cushing (1968) is fundamental to the world's fisheries because knowing ruaya circle will be known fish stocks or sub-regions where the population lives. This ruaya adjustment has meaning, reassurance to the favorable conditions for the existence and for the reproduction of the species.
According Chimit (1960) in Effendie (1997) not all fish do ruaya. There is a fish not a fish peruaya that never leave their habitat. Peruaya fish habitat at a specific time left to carry out certain activities, so there are some species of fish have different ruaya area either seasonally or on the stage of life development.
Some terms related to fish ruaya namely:
1. Amfibiotik: highly migratory fish from the sea water to fresh water or vice versa.
2. Holobiotik: fish are not doing ruaya during his stay in fresh water or sea water alone.
1. Amfibiotik: highly migratory fish from the sea water to fresh water or vice versa.
2. Holobiotik: fish are not doing ruaya during his stay in fresh water or sea water alone.
However there are some to be peruaya.
3. Diadrom: ruaya to perform a spawning fish
4. Amfidrom: migratory fish to find food
5. Potamodrom: and migratory fish that live in fresh water including rivers and lakes only
6. Oseanodrom: fish that live in the sea and migratory sea.
7. Batidrom: straddling fish in deep water
8. Brakheadrom: straddling fish in shallow water
9. Katadrom: highly migratory fish from the sea to freshwater only to spawn
10. Anadrom: highly migratory fish from the sea to fresh water to spawn
3. Diadrom: ruaya to perform a spawning fish
4. Amfidrom: migratory fish to find food
5. Potamodrom: and migratory fish that live in fresh water including rivers and lakes only
6. Oseanodrom: fish that live in the sea and migratory sea.
7. Batidrom: straddling fish in deep water
8. Brakheadrom: straddling fish in shallow water
9. Katadrom: highly migratory fish from the sea to freshwater only to spawn
10. Anadrom: highly migratory fish from the sea to fresh water to spawn
spawning
Semi-intensive fish spawning is spawning occurs by giving a stimulus to accelerate the maturity of gonadal hormones, but the process of ovulation occurs naturally in the pond. Types of fish that can be performed in semi artificial spawning fish among others Bawal, fish catfish, snapper fish, and grouper.
Artificial spawning fish are spawning that occurs with stimulating hormone to accelerate gonadal maturation and ovulation process is done artificially by techniques of stripping / sorting. Types of fish that can be performed by artificial spawning fish such as catfish, carp, and catfish fishing.
Artificial spawning fish are spawning that occurs with stimulating hormone to accelerate gonadal maturation and ovulation process is done artificially by techniques of stripping / sorting. Types of fish that can be performed by artificial spawning fish such as catfish, carp, and catfish fishing.
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