Search results
Results from the WOW.Com Content Network
Opercular series in bony fish: operculum (yellow), preoperculum (red), interoperculum (green) and suboperculum (pink) The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills ; it is also used for respiration and feeding.
The current International Game Fish Association all-tackle world record for a white crappie is 2.35 kg (5.2 lb), caught on July 31, 1957, near Enid Dam, Mississippi, by angler Fred Bright, while the IGFA all-tackle length world record is a 39-centimetre (15 in) fish, caught on October 14, 2022, in Grenada Lake, Mississippi, by angler Doug Borries.
American paddlefish are often referred to as primitive fish, or relict species, because of morphological characteristics that they retain from some of their early fossil ancestors. [17] These characteristics include a skeleton composed primarily of cartilage , and a deeply forked heterocercal (spine extending into the upper lobe) caudal fin ...
The caudal fin lobes have dark tips and there is a prominent black edge to the operculum. As the fish grows, the body becomes more silver to silvery golden and the cross bars fade or disappear, often replaced by dark blotches. The fins remain yellow, often with greenish tinges. The dark edge of the operculum also fades with age. [10] [14]
This is a list of amphibians of Pennsylvania as listed by the Pennsylvania Fish and Boat Commission. [1] Notes on ranges provided by Pennsylvania Amphibian & Reptile Survey. [2] Pennsylvania has 41 native species of amphibians, with 23 salamanders and newts, and 18 species of frogs and toads.
A Pennsylvania angler caught his ‘unicorn’ fish Sunday in Erie. Colton Alex, 18, of Erie, was fishing in a tournament in Lake Erie when he hooked into a large Atlantic Salmon.
Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat). Gills are tissues that are like short threads, protein structures called filaments. These filaments have many functions including ...
Albino paradise fish. Paradise fish are fairly combative, harassing and attacking each other, as well as potentially assaulting and killing small fish. During a fight, the paradise fish will often change its color, usually displaying dark blue lateral lines on the sides of their bodies; extend its fins; and spread out its operculum. [5]