Pipefish

Pipefishes, or pipe-fishes, are small fish that belong to the Syngnathinae subfamily. They are closely related to seahorses and seadragons, which together make up the family Syngnathidae.

These fish live in many parts of the world's oceans. They are often found near coral reefs, seagrass beds, and rocky areas. They have long, slender bodies that look like tiny tubes or pipes, which helps them blend in with seaweed and other plants.

Pipefishes eat small organisms like tiny crustaceans and plankton. Like seahorses, male pipefishes carry the eggs and give birth to the young. This special way of caring for their young helps protect the babies until they are ready to explore on their own.

Description

Pipefish look like straight-bodied seahorses with very small mouths. Their snouts are long and tube-like, ending in a tiny mouth that opens upwards and has no teeth. Their bodies and tails are long, thin, and snake-like. They have a special skeleton made of armored plating with several ridges, making their bodies look angular instead of round.

Pipefish always have a dorsal fin, which is their main way of moving. They do not have ventral fins, and other fins may or may not be present. Their gill openings are very small and located near the back of their gill cover. Many pipefish are weak swimmers and move slowly by quickly moving their dorsal fins. Some have tails they can grab with, like seahorses, and most have a caudal fin for swimming. A group called flagtail pipefish have stronger caudal fins and are better swimmers.

Habitat and distribution

Most pipefishes live in the ocean; only a few live in freshwater. They are common along the coasts in warm and mild areas. Most pipefish are about 35–40 cm (14–15.5 in) long and are usually found in safe spots in coral reefs or seagrass beds.

Habitat loss and threats

Pipefish are not strong swimmers, so they often live in shallow waters. These areas can be disturbed by factory runoff and human activities. Boats and drag lines can move sand and dirt, which harms the seagrasses and eelgrasses that pipefish need. Because pipefish live in a small area, it is hard for them to move to new places when their homes change.

Some people catch pipefish to use in old medicine practices, even though there is no proof these remedies work. Pipefish are especially wanted because some believe they are more powerful than other similar sea animals. The trade of pipefish for aquariums has also grown in recent years.

Reproduction and parental care

Pipefishes, like their seahorse relatives, have the males take on most of the parenting duties. The male looks after the babies after they are born. The babies get food and oxygen through a connection like a placenta. The babies grow either on a special part of the male's body or in a pouch. This pouch can be in different places, such as along the bottom of the body or near the tail.

Males and females do special dances before mating to show they are ready. During mating, the female puts her eggs into the male's pouch or special skin area. The male then fertilizes the eggs and shakes the pouch. Because males can only carry a certain number of eggs, they often decide how many babies are made. Young pipefish are born ready to swim and eat right away, and they quickly become independent from their parents.

Genera

Pipefishes belong to the subfamily Syngnathinae, which also includes seadragons. This group has many different genera, or groups, of species. Some of these genera include Acentronura, Amphelikturus, Anarchopterus, and many more. Each genus has its own unique traits, but they all share one special feature: their jaws are fused together. This makes them different from other fish families.

The list of genera includes both living and ancient species, showing the variety in this interesting group of fish.