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Electrona antarctica, Antarctic lanternfish : fisheries
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Antarctic lanternfish
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Electrona antarctica
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Teleostei (teleosts) >
Myctophiformes
(Lanternfishes) >
Myctophidae
(Lanternfishes) > Myctophinae
Etymology:
Electrona:
Greek, elektron = amber (Ref.
45335
)
.
More on author:
Günther
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; oceanodromous (Ref.
51243
); depth range 1 - 1010 m (Ref.
114491
). Polar; 45°S - 78°S, 180°W - 180°E
Circumpolar south of Antarctic Polar Front, but not found in Ross Sea; adults only in higher latitudes (South Orkneys, South Shetlands, Peter Island) and south of the Weddell-Scotia confluence, but adults and juveniles in the region of South Sandwich I, South Georgia and Bouvet. Reported from off the Cape, South Africa and from 43°17'S, 48°55'E (Ref.
4066
).
Length at first maturity / Size / Weight / Age
Maturity: L
m
7.4
  range ? - ? cm
Max length : 11.5 cm SL male/unsexed; (Ref.
114491
); 10.3 cm SL (female); max. published weight: 15.00 g (Ref.
124149
); max. reported age: 4 years (Ref.
94119
)
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 14-16;
Anal
spines
: 0;
Anal
soft rays
: 19 - 22
Oceanic and mesopelagic, found in the upper 100 m south of the Antarctic Polar Front but deeper northwards (Ref.
4066
). Adults take more euphausiids and also prey upon polychaetes. The diet of juveniles of less than 6 cm SL consists mainly of copepods, with some euphausiids and hyperiids. Possibly the most common myctophid occurring south of the Antarctic Polar Front.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Hulley, P.A.
, 1990. Myctophidae. p. 146-178. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref.
5182
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
26 June 2018
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): -0.2 - 1.2, mean 0.4 °C (based on 610 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00469 - 0.01475), b=3.09 (2.94 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.2 ±0.4 se; based on diet studies.
Generation time: 6.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17-0.25; tmax=11).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (41 of 100).
Price category (Ref.
80766
):
High
.
Nutrients (Ref.
124155
): Calcium = 63.5 [23.8, 202.8] mg/100g; Iron = 0.649 [0.225, 1.681] mg/100g; Protein = 15.4 [13.5, 17.5] %; Omega3 = 0.92 [0.39, 2.31] g/100g; Selenium = 13.9 [4.6, 38.8] μg/100g; VitaminA = 49.6 [8.9, 301.0] μg/100g; Zinc = 0.657 [0.347, 1.130] mg/100g (wet weight); based on
nutrient studies.
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