Billet Fish, Characteristics, Breeding, Uses & Best 11 Notes

Billet fish is a type of marine fish that is caught primarily in North America and Europe. It is also known as a California sea bass, Jesmon’s scale fish, Pacific sea bass in French, and tinnitus fish due to the distinctive calls it makes. Billet fish (Lophius Piscatorius) is a type of baitfish that shares similar traits with both flatfish and grenadier.

They are common throughout the world but are most heavily fished off New England and California coasts. Baitfish or “baitfish” is a catch-all term used for species that are eaten by larger predator fish. The term “baitfish” can be defined in many ways. It can refer to any animal species that are used as prey by a predator species, whether it be the predatory animal itself, or an organism taken in such a way that it becomes part of the diet of the predatory animal.


How to identify billet fish?

This fish is similar to the common sole. This species has a grayish-brown color with some white spots on the body and a dark spot on its back. The fin of this fish is small, fine, and dark with blue and light blue only present at the tail end of it.

Billet Fish Images
Billet Fish Images

The coloration is variable but usually, the dorsal fin of this species is concealed by a stiff protruding plate. The overall weight ranges from 3 to 6 pounds (1 – 2 kg), depending on the location, season, and size of the fish.


The overall weight ranges from 3 to 6 pounds (1 – 2 kg), depending on the location, season, and size of the fish. The meat of the fish is white and is described as having a mild flavor. The health benefits of this fish are omega-3 fatty acids, protein, iron, phosphorus, and selenium.

There is also a myth that it may be used to soothe tinnitus when eaten. Tinnitus is a condition in which one hears noises that no one else can hear.


This fish feeds on squid, shrimp, prawns, and other smaller fish. The spawn of this species occurs in the summer months of September through November. The spawn will occur within 450 m of shore or on a sandy or muddy bottom with a depth greater than 50 m.

They will lay their eggs in small shallow depressions on the ocean floor and then cover them up with sand and gravel. The eggs of this fish are pelagic, which means they will remain on the ocean surface. The young are born after a 3-month gestation period and they become sexually mature at 1 year of age.


The diet of this species consists primarily of squid, shrimp, and other small fish. The billet fish also feeds on starfish and crabs.


This fish is used for food and are one of the most common types of baitfish. They are also fished for sport. The billet fish is a keystone species, meaning it has a disproportionate effect on the ecosystem they are found in then what would be expected from its abundance.

This fish is responsible for redistributing nutrients in the oceans and lakes of California and Oregon. The reason for this is that they ingest food items such as krill and squid whose bodies contain high amounts of phosphorus and nitrogen which are then passed along through the food chain when these fish are consumed by other marine life.

Best 11 Notes

NameBillet fish
Other NameCalifornia sea bass, Jesmon’s scale fish, Pacific sea bass in French, and tinnitus fish
Scientific nameLophius piscatorius
Breed Class, sizeA species of fish medium-sized, weighing approximately 5 kg
Climate ToleranceColder temperatures of oceans and lakes.
ColorGrayish-brown with white spots
Mating SeasonNovember to January.
RarityCommonFisheryCommon baitfish for cod fishing, whiting fishing, and lobster fishing – commonly used as the main fish species in the bait tank.
DietShrimp, prawns, and other small fish.
Lifespan15 years or more


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