1. free-swimming - Adjective
2. free-swimming - Adjective Satellite
Swimming in the open sea; -- said of certain marine animals.
Source: Webster's dictionaryAfter hatching, the free-swimming embryo spends about a week absorbing a relatively small amount of yolk. Source: Internet
Sea lice are ectoparasites which feed on mucus, blood, and skin, and migrate and latch onto the skin of wild salmon during free-swimming, planktonic nauplii and copepodid larval stages, which can persist for several days. Source: Internet
Fertilized eggs hatch into free-swimming trochophore larvae. Source: Internet
Guppy fry Live-bearing aquarium fish, often simply called livebearers, are fish that retain the eggs inside the body and give birth to live, free-swimming young. Source: Internet
Live-bearing aquarium fish, often simply called livebearers, are fish that retain the eggs inside the body and give birth to live, free-swimming young. Source: Internet
Surface-living animals (such as sea otters) need the opposite, and free-swimming animals living in open waters (such as dolphins) need to be neutrally buoyant in order to be able to swim up and down the water column. Source: Internet