Pipefish are some of the most abundant, yet slightly elusive creatures in the sea, mostly due to their fragility and their amazing ability to blend into their surroundings to avoid detection. A relative of seahorses, their long pencil-like bodies have bony rings of armor along their bodies. Like the seahorse, the snout of this fish is tubular and long, and the mouth is small. All have a dorsal fin, and a small tail fin is found on most. There are approximately 200 species ranging in size from 1 – 26 inches.
The small fins and rigid body structure make them slow swimmers, so they avoid detection primarily through camouflage. A small number of species have prehensile tails used to grab and hold plants, with the exception of one group: the Flagtail Pipefish. The tail fin is well-developed and allows this species to swim better than others within its family.
Colors and patterns vary greatly. Some are colorful, while others display more muted shades. Like a chameleon, a few species can change colors to match their surroundings, appearing to sway with water currents and sea grass. Pipefish can often be found traveling in groups, which can surprisingly increase the efficacy of their camouflage.
Pipefish are found in shallow temperate and warm waters of both the Pacific and Atlantic. While most live in saltwater, some have infiltrated and are surviving in freshwater environments. A few types are fully freshwater species and are found in streams and rivers. Coastal marine areas having coral reefs or eelgrass are typical environments for the pipefish. These fish have diverse lifestyles. Some species are found at a depth of 1,300 feet in the open ocean. Others have set up stations that clean fish by eating parasites.
They are not the fastest nor the most aggressive hunters in the ocean, but any prey species that comes within reach of the pipefish’s snout doesn’t stand a chance, as the prey is sucked inside its mouth swiftly due to a vacuum effect within its snout. Tiny crustaceans like mysis shrimp and copepods are favorite prey of the pipefish. Worms and insects are food for freshwater varieties, while large varieties feed on small fish. As previously mentioned, some eat the parasites of other fish. They are visual hunters that rely on light to find food.
When it comes to reproduction and relationships, it might be said that the pipefish is a seasoned romantic. The courtship is an elaborate display. Similar to seahorses, the male of the species does most parenting duties. The males are designed to carry eggs that are deposited by females. When the pipefish hatch, they are free swimming and normally begin eating immediately, eventually drifting to a place where they can begin lives of their own.
Check out this fascinating video of a moment in the life of these delicate branches of the sea!
