Gadiformes


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Gadiformes

[‚gad·ə′fȯr‚mēz]
(vertebrate zoology)
An order of actinopterygian fishes that lack fin spines and a swim bladder duct and have cycloid scales and many-rayed pelvic fins.

Gadiformes

 

an order of bony fishes (superorder Teleostei). The ventral fins are located in front of the pectorals. In some fish of the family Macrouridae there are two spines in the first dorsal fin. There is usually a barbel on the chin. The body length ranges from several centimeters to 1.5 m or more, and the weight may reach 40 kg. Marine species, that is, all species excluding the burbot, are predominantly benthic and benthopelagic fishes that inhabit cold water to depths of 200–2,000 m or more; a number of species are pelagic. Most members of the order are euryphages and predators. There are about 500 species, belonging to eight families. The USSR has representatives of five families.

Many species of the families Gadidae, Merluccidae, and Macrouridae are important commercially. They yield up to 15 percent of the world fish catch, over 90 percent of which consists of Gadidae.

REFERENCES

Svetovidov, A. N. Treskoobraznye. Moscow-Leningrad, 1948. (Fauna SSSR: Ryby, vol. 9, fasc. 4.)
Zhizn’ zhivotnykh, vol. 4, part 1. Moscow, 1971.
References in periodicals archive ?
Transmission electron microscopy images confirmed the presence of intracellular Hb polymers in six species in three families (Gadidae, Merlucciidae, and Phycidae) in the order Gadiformes (Fig.
A review of the genus Lepidion (Gadiformes, Moridae) from the Northwestern Pacific.
Morphology and ultrastructure of saccular otoliths from five species of the genus Coelorincus (Gadiformes: Macrouridae) from the southeast Atlantic.
AS/NHB SS 84.42 h, 16.48 h, Taxa 63-126 m 40-126 m Scyliorhinidae Scyliorhinus retifer, chain dogfish 30.158 56.489 Carcharhinidae Carcharhinus sp., requiem shark 0.002 Rajidae Leucoraja garmani, rosette skate 0.339 Rajidae (unidentified) 0.002 0.594 Ophichthidae Ophichthus cruentifer, margined snake eel 0.170 Congridae Conger oceanicus, conger eel 0.596 0.170 Gadiformes (unidentified), cods 0.002 0.085 Moridae Physiculus fuluus, metallic codling 0.094 Phycidae Phycis chesteri, longfin hake 0.002 Urophycis chuss, red hake 0.002 Urophycis regia, spotted hake 0.006 Urophycis sp.
Laurence (1978) observo en Gadus morhua y Melanogrammus aeglefinus (Gadiformes) que estas especies se desarrollan mas rapido a mayores temperaturas del agua.
En el caso de melanosis parcial, se tiene registro en Gadiformes, Gadus callarias y Merlangius merlangus, cuya causa seria el alto numero de parasitos trematodos y la reaccion intensa del huesped en el desarrollo de sus melanoforos, junto a una hipertrofia de su dermis (Gamble & Drew, 1911; Hsiao, 1941).
Spatio-temporal distribution of recruits (0 group) of Merluccius merluccius and Phycis blennoides (Pisces, Gadiformes) in the Strait of Sicily (Central Mediterranean).
Classification and nomenclature PHYLUM ORDEN FAMILIA Mollusca Teuthoidea Loliginidae Ommastrephidae Cephalopoda Octopodidae Arthropoda Amphipoda Aoridae Crustacea Isopoda Cimothoidae Cirolanidae Stomatopoda Hemisquillidae Lysiosquillidae Squillidae Decapoda Penaeidae Sicyoniidae Solenoceridae Caridea Palaemonidae Gnathophyllidae Hippolytidae Alpheidae Palinura Palinuridae Anomura Diogenidae Porcellanidae Paguridae Albuneidae Lithodidae Brachyura Grapsidae Ocypodidae Portunidae Xanthidae Chordata Enterogona Salpidae Pisces Anguiliformes Ophichthidae Muraenesocidae Gadiformes Bregmacerotidae Clupeifortnes Clupeidae Engraulidae Pristigasteridae PHYLUM ORDEN ESPECIE Mollusca Teuthoidea Loligo sp.
1 Myctophi Myctophidae Benthosema 0.0 0 formes panamense (Taning) Gadiformes Bregmacerotidae Bregmaceros 0.0 0 batymaster Jordan & Bollman Atherini Atherinopsidae Atherinella 0.0 0.0 formes eriarcha Jordan & Gilbert Mugili Mugilidae type 1 0.0 0.0 formes Seorpaeni Seorpaenidae type 1 10.6 0.0 formes Perciformes Carangidae Caranx sp.
Isotopic composition of otoliths from a benthopelagic fish Coryphaenoides acrolepis, Macrouridae: Gadiformes. Oceanol.