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The adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders ( Percopsiformes , Myctophiformes , Aulopiformes , Stomiiformes , Salmoniformes , Osmeriformes , Characiformes , Siluriformes and Argentiniformes ...
Dolphin kick can also be used with paired fins (bifins), but does not reach the same level of efficiency. Nevertheless, it is a powerful technique and capable of producing high thrust, but this high thrust has a high energy cost when applied by sub-optimal fins and to high-drag scuba diving equipment, so it is often only used for short bursts ...
Flippers are one of the principal control surfaces of cetaceans (whales, dolphins and porpoises) due to their position in front of the center of mass, and their mobility which provides three degrees of freedom. [4] The tubercles on the flippers of humpback whales improve the hydrodynamics of the flipper at their size. Breaking up channels of ...
Sub-cavitation: The sound vibrates the surfaces (e.g. hull, sea chests, water coolers) to which the transducer is attached. The vibrations prevent the cyprid stage of the biofouling species from attaching themselves permanently to the substrate by disrupting the Van Der Waals Force that allow their microvilli to hold themselves to the surface .
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For example, heart rate, metabolic rate and transport cost was reduced by up to 70% during wave-riding compared to swimming at speeds 1 m/s slower in bottlenose dolphin. [19] Wave-riding behaviour can be performed by dolphins from minutes up to several hours, [19] and therefore is a useful energy-saving mechanism for swimming at higher speeds.
The Miami Dolphins ended their three-game losing streak with a 15-10 win over the New England Patriots. Both teams rushed for more than 150 yards and the Dolphins’ defense came up big to stop ...
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