Unidentifiable small aquatic insect larva

Shallow, stagnant or slow-moving freshwater such as containers, puddles, drains, and ponds.

Depending on species, may graze on algae and biofilm, consume decaying organic matter, or filter-feed on microorganisms.

Aquatic larvae commonly remain near surfaces or sediment and molt through several stages before pupating; some periodically reach the surface for air.

Most such larvae are harmless and contribute to decomposition and aquatic food webs. If this is a mosquito larva, nearby standing water could support disease-vector populations, though the image does not show enough detail for confirmation.