Glycera annelid

• • Glycera Worms: A Comprehensive Overview**

Glycera worms belong to the genus *Glycera* within the family Onuphidae, found in diverse marine environments across the world's oceans. These worms are known for their elongated, segmented bodies adorned with fleshy projections called疣足, aiding in movement and prey capture. Ranging from a few millimeters to several centimeters in length, they exhibit cylindrical shapes that can expand laterally, appearing flattened, and vary in color from white to brownish.

Glycera worms primarily inhabit marine sediments like mud and sand, often burrowing into these substrates. Nocturnal by nature, they emerge at night to feed on small organisms such as copepods. Their predators include fish and other benthic creatures, necessitating defense mechanisms like rapid movement or chemical deterrents.

Reproduction in Glycera is unique, with most species being hermaphroditic, possessing both male and female reproductive organs. They reproduce through internal fertilization, leading to planktonic larvae that eventually settle as adults.

Beyond their ecological role, Glycera worms are commercially valuable as bait for saltwater fishing, sold in tackle shops globally. Interestingly, they can also trigger health issues; a study highlights bloodworm-induced asthma caused by allergies from handling these creatures.

The genus *Glycera* encompasses numerous species, each with distinct scientific names and ecological niches, underscoring their diversity and adaptability across marine ecosystems. This overview captures their essential characteristics, behaviors, and interactions with both natural environments and human activities.