fin


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fin

(fĭn)
n.
A membranous appendage extending from the body of a fish or other aquatic animal, used for propelling, steering, or balancing the body in the water.

fin

a flattened limb found in aquatic animals, and used for locomotion.

fin

winglike structure attached to the body of fish and cetaceans; used for steering and propulsion during progress through the water.

fin rot
a disease of aquarium fish characterized by thickening followed by necrosis of the fin and tail tissues, commencing at the edges, caused by Haemophilus piscum and Aeromonas spp. May be bracketed with fin rot/tail rot/snout erosion. Often associated with suboptimal cultural conditions. Mixed populations of opportunistic bacteria are usually present.
References in periodicals archive ?
A measure to ban the trade of shark fins in Texas is headed to Gov.
Description: Dorsal rays XI,9 (female paratype with XII,9); anal rays 111,9; first dorsal and anal soft rays unbranched, all others branched, the last to base; pectoral rays 15, the upper two un-branched; pelvic rays 1,5; principal caudal rays 13; median 11 unbranched; upper and lower procur-rent caudal rays 6, posteriormost segmented; lateral line interrupted; dorso-anterior series of pored scales 17+7 (17+6-8), scales above lateral line to base of dorsal fin 2; scales below lateral line to base of anal fin 6; median predorsal scales 5; median prepelvic scales 6; circumpeduncular scales 16; horizontal scale rows on cheek 2; gill rakers 13 (1314); branchiostegal rays 5; vertebrae 9 + 16.
The National Marine Fisheries Service has proposed an amendment to the Shark Conservation Act of 2010, which President Obama signed into law in January 2011, that would preempt existing shark fin laws in US states and territories.
That's because the fins on your HMMWV's radiator and oil cooler protect your HMMWV's engine and transmission from overheating.
Lawmakers in Delaware, Maryland, Massachusetts, New Jersey, New York, Pennsylvania and Texas introduced legislation this year on shark fins.
Jean-Denis, said: "I was told the men wanted to cut her fin off and leave the body which you don't expect to hear in Dorset.
Pour ce qui est des importations des produits energetiques, elles se sont chiffrees a pres de 14,23 MMDH contre 16,03 MMDH a fin fevrier de l'annee precedente, soit une baisse de 11,3 pc.
The response that has emerged since July of 2010 has been to address the problem by attempting to limit availability of shark fin soup and the legality of possessing shark fins.
For the frost mass measurements, the aluminium fin was put in a sealed container, and a digital balance with high accuracy was used to find the accumulated frost mass.
Also in October, Toronto, Ontario, Canada's largest shark fin market, became the fourth Canadian city to ban shark fins, joining Brantford, Oakville and Mississauga, all also in Ontario, that had bans in place already.
During courtship, females fan out their violet pelvic fin, suggesting that the fin is actively used during mate choice.
The work shows the scalloped hammerhead fin trade is sourced from all over the globe and so must be globally tracked and managed.