dogfish


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Related to dogfish: bowfin

dogfish,

name for a number of small sharks of several different families. Best known are the spiny dogfishes (family Squalidae) and the smooth dogfishes (family Triakidae). Spiny dogfishes have two spines, one in front of each dorsal fin, and lack an anal fin. The common spiny, or piked, dogfish (Squalus acanthus) is found in most oceans of the world and is particularly abundant in shallow, temperate waters. Its gray skin is speckled with white. Females of this species may reach a length of 4 ft (120 cm) and weigh 15 to 20 lb (6.3–9 kg); males are smaller. The spines in this species contain venom that can cause a very painful wound. Spiny dogfishes migrate seasonally, preferring water within a certain temperature range. They feed on a variety of fishes and invertebrates and cause great damage to populations of commercially valuable fish. In Europe they are fished for food. Other members of the spiny dogfish family are found in deep water. The smooth dogfish (Mustelis canis) is found on the Atlantic coast of America from Brazil to Cape Cod. It is gray in color and grows to a length of about 5 ft (150 cm). Of no commercial value, it migrates seasonally and feeds on small fishes and invertebrates. Like the spiny dogfish, the smooth dogfish is much used for dissection by students of vertebrate anatomy. The smooth dogfish family also includes two small sharks abundant on the Pacific coast of the United States, the brown smoothhound (Rhinotriacis henlei ) and the leopard shark (Triakis semifasciata); the latter is strikingly marked with black on a tan background. The name dogfish also refers to certain unrelated bony fishes (see bowfinbowfin,
primitive freshwater fish found in the Mississippi basin, the Great Lakes, and E to Vermont. The bowfin has a light covering of rounded, overlapping scales, a large mouth, and sharp teeth.
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). The dogfish sharks are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Chondrichthyes, order Selachii.

dogfish

[′dȯg‚fish]
(vertebrate zoology)

dogfish

1. any of several small spotted European sharks, esp Scyliorhinus caniculus (lesser spotted dogfish): family Scyliorhinidae
2. any small shark of the family Squalidae, esp Squalus acanthias (spiny dogfish), typically having a spine on each dorsal fin
3. any small smooth-skinned shark of the family Triakidae, esp Mustelus canis (smooth dogfish or smooth hound)
4. a less common name for the bowfin
References in periodicals archive ?
In addition to the keynote address, Sam will welcome 40 bloggers to Coastal Delaware for a BBC pre-conference excursion to Dogfish Head Brewery, a production brewery and distillery featuring a tasting room and food truck, the Dogfish INN, a beer-themed inn on the harbor, and Dogfish Head Brewing & Eats, an off-centered brewpub and distillery.
Age data contribute to knowledge of spiny dogfish life-history parameters and reproductive potential (Gallucci et al.
We captured Spiny Dogfish of both sexes, and based on their size distribution it is likely that they were individuals reaching or at sexual maturity (Jones and Geen 1977).
For spiny dogfish, simultaneous investigation of fishery-dependent and fishery-independent information may provide critical insight into whether commercial fisheries and spiny dogfish are becoming more coincident in time and space, a potential explanation for unacceptably high catches of spiny dogfish (Tallack and Mandelman, 2009).
When anglers lift a thrashing dogfish over the rails, they risk having a spine penetrate deeply, most often into their forearm or leg.
The Dogfish (and the New Holland brands, also covered by the deal) will now be handled in the Chicago area by Burke Beverage, Chicago Beverage Systems, Euclid Beverage, Hayes Beer Distributing Co.
The dogfish, or rock salmon as it is sometimes called, can reach lengths of up to a metre when fully grown.
Mick Smith was runner-up with seven flounder for 4lb 7oz, while Craig Dalton added a flounder and a coalfish to his dogfish to total 3lb 13oz.
Natural gas company Chesapeake Utilities Corp (NYSE:CPK) said on Friday that it has entered into an agreement with Dogfish Head of Delaware to provide natural gas services to the latter's Milton, Delaware brewery.
He loves hearing the story about the time his dad saw seven dogfish all in one dive, and this is what inspired him to paint this picture.
Dogfish are small sharks, found in most UK coastal hotspots.
Wallasey's Jamie Pickup scored a convincing win by catching six of the quick-biting whiting, then adding four bonus dogfish in the last hour for a total of 3kg 940g.