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Notothenia angustata, the Maori chief or black cod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean
Notothenia angustata was first formally described in 1875 by the English-born New Zealand scientist Frederick Wollaston Hutton with the type locality given as Dunedin in New Zealand.[2] The specific name angustata means "narrowed" a reference to the relatively narrow head of this species.[3]
Notothenia angustata is a large demersal fish which is quite similar in shape and colour to the Maori cod (Paranotothen magellanica). The mouth is large and there are obvious bony ridge over each eye. They have a rounded caudal fin and slightly overlapping lateral lines. The small first dorsal fin has six spines. The colour is dark grey or green on the upper body with blue-black mottling and it has a yellow abdomen. There are many small grey spots and streaks on the head and the grey fins have dark mottling.[4] This species attains a maximum total length of 41 cm (16 in).[1]
Notothenia angustata is found in the Southern Ocean and the Southern Pacific Ocean. It is found from New Zealand and Chile south and throughout the Subantarctic, at depths to 100 m (330 ft). The juveniles are often found in tide pools,[1] with the adults on rocky reefs.[4]
Notothenia angustata feeds on cephalopods, benthic invertrebrates and small fishes.[4] However, in Chile, a study found that the main component of their diet was algae.[5] This species has some of the same genes as its more southerly relatives for the production of antifreeze proteins in its blood.[6] The Chilean study referenced above found 11 taxa of parasites living in specimens of this species including digeneans, cestodes and nematodes.[5]
Nothotenia angustata is caught using hook and lines and the flesh is edible but not highly regarded and any caught tend to be used as bait in lobster fisheries.[7]
Notothenia angustata, the Maori chief or black cod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean
El jefe maorí (Notothenia angustata) es un pez perciforme de la familia Nototheniidae. Es un pez rayado parecido al bacalao, que vive en el océano sureño junto a la Antártida y en el sur del Atlántico. Mide de 30 a 65 centímetros y es pescado comercialmente. Se encuentra hasta 100 metros de profundidad en área rocosas de arrecifes. A veces se le llama jefe maorí al bacalao maorí, pero es otra especie completamente diferente aunque están emparentados.
Tiene un gran boca, una prominente cresta ósea encima de cada ojo, una aleta caudal redondeada y dos líneas laterales que se superponen ligeramente. La primera aleta dorsal es pequeña, con sólo seis espinas. Es de color gris oscuro o verde, moteado con azul-negro, y es amarillo en el vientre. Presenta pequeñas manchas grises numerosas y vetas en la cabeza sugiriendo el complejo tatuaje que usaban los antiguos jefes Maoríes, de ahí su nombre. Las aletas son grises con moteado oscuro.
Se alimenta de una variedad de invertebrados y pequeños peces, así como del alga cochallullo.
Datos: Q1961975
Multimedia:
Notothenia angustata Notothenia generoko animalia da. Arrainen barruko Nototheniidae familian sailkatzen da.
Notothenia angustata Notothenia generoko animalia da. Arrainen barruko Nototheniidae familian sailkatzen da.
