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Teleostei (teleosts) >
Perciformes/Notothenioidei
(Icefishes) >
Bathydraconidae
(Antarctic dragonfishes) > Bathydraconinae
Etymology:
Parachaenichthys:
Greek, para = the side of + Greek, chaino = open the mouth (Ref.
45335
)
.
More on author:
Vaillant
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 5 - 400 m. Polar; 60°S - 69°S
Southern Ocean: South Orkney, South Shetland, Elephant Islands and tip of Antarctic Peninsula to 65°S.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 42.0 cm SL male/unsexed; (Ref.
5192
)
Yolk larvae (2.3-3.2 cm TL) found from late October to early December; small juveniles from mid-January to mid-March, thus hatching may occur in late winter. Feeds on fish (Ref.
5192
).
Gon, O.
, 1990. Bathydraconidae. p. 364-380. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref.
5192
)
Preferred temperature (Ref.
123201
): -1.3 - 0.1, mean -0.9 °C (based on 23 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00130 - 0.00351), b=3.21 (3.06 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 4.2 ±0.7 se; based on diet studies.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 10,000).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (41 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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