Galaxias divergens facts for kids
Quick facts for kids Dwarf galaxias |
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The dwarf galaxias (scientific name: Galaxias divergens) is a small, unique fish. It belongs to a family of fish called galaxiids. You can only find this special fish in New Zealand. It lives in the lower part of the North Island and the upper part of the South Island. This little fish can grow up to 9 centimeters long.
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About the Dwarf Galaxias
What Does It Look Like?
The dwarf galaxias has a smooth body. Unlike many fish, it does not have any scales. Instead, its skin is thick and feels a bit like leather. It is also covered in a slimy layer called mucus. This helps protect its skin.
It has a single dorsal fin (on its back) and a single anal fin (on its belly). These fins are placed quite far back on its body. They are about two-thirds of the way along its length.
Unique Fins
One special thing about the dwarf galaxias is its pelvic fins. These fins are found on its underside, near its head. Most other galaxiid fish have five rays in their pelvic fins. However, the dwarf galaxias has six rays. This small difference helps scientists tell it apart from its relatives.
What Does It Eat?
The dwarf galaxias loves to eat small aquatic insects. These are insects that live in the water. Its favorite meals include mayflies and midges. It spends its time hunting for these tiny creatures in its freshwater home.
Life Cycle and Reproduction
The dwarf galaxias has specific times when it reproduces. This process is called spawning. Spawning happens twice a year for these fish. They lay their eggs from March to May. They also spawn again from October to November.
Staying in Freshwater
Unlike some other fish, the dwarf galaxias does not travel to the sea. It stays in freshwater for its entire life. Fish that do not go to the sea are called non-diadromous. This means they are not part of the famous New Zealand whitebait catch. Whitebait are young fish that are caught as they swim from the sea into rivers.
