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Filter feeders can play an important role in condensing biomass and removing excess nutrients (such as nitrogen and phosphate) from the local waterbody, and are therefore considered water-cleaning ecosystem engineers. They are also important in bioaccumulation and, as a result, as indicator organisms. Filter feeders can be sessile, planktonic ...
External anatomy of a bony fish (Hector's lanternfish): 1. operculum (gill cover), 2. lateral line, 3. dorsal fin, 4. adipose fin, 5. caudal peduncle, 6. caudal fin, 7. anal fin, 8. photophores, 9. pelvic fins (paired), 10. pectoral fins (paired) Internal anatomy of a bony fish. Fish anatomy is the study of the form or morphology of fish. It ...
The American paddlefish (Polyodon spathula), also known as a Mississippi paddlefish, spoon-billed cat, or spoonbill, is a species of ray-finned fish. It is the last living species of paddlefish (Polyodontidae). This family is most closely related to the sturgeons; together they make up the order Acipenseriformes, which are one of the most ...
Bowl feeders: consist of a bowl top with a spiral track inside the bowl. The component parts are delivered from the bottom of the bowl feeder up the track into the top of the feeder as the bowl vibrates. The parts are then positioned in the proper position. These parts are usually then fed on to a vibratory or air track [ 5]
A fly fishing rod. Line guides on modern fishing rods. Fishing with a fishing rod. A fishing rod is a long, thin rod used by anglers to catch fish by manipulating a line ending in a hook (formerly known as an angle, hence the term "angling"). At its most basic form, a fishing rod is a straight rigid stick/pole with a line attached to one end ...
Guppies are a common example of feeder fish. Feeder fish is the common name for certain types of small, inexpensive fish commonly fed as live food to other captive animals such as predatory fishes (e.g. aquarium sharks, farmed salmon and tuna) or carnivorous aquarium fish (e.g. oscars, gar, grouper and rays), turtles, crocodilians and other piscivores that naturally hunt in fresh, brackish or ...
File:Fish Pond (Aquaculture) diagram.svg. Size of this PNG preview of this SVG file: 730 × 423 pixels. Other resolutions: 320 × 185 pixels | 640 × 371 pixels | 1,024 × 593 pixels | 1,280 × 742 pixels | 2,560 × 1,483 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish [1]) to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming. [2] Also, the dorsal position of the swim bladder means ...
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