Summary
The age composition of Chionodraco hamatus samples caught by fixed nets in Terra Nova Bay during the Austral summer 1987/88 was determined by examination of thin otolith sections. Individual ages were estimated by counting the number of annuli seen in the sections, since we postulated that annuli were laid down yearly. Fish were estimated to be 5–10 years old. Although our “apparent ages” were not confirmed by other independent estimates, our data seem to compare well with the values reported for other Antarctic fishes. Females in our samples were on average larger than males of the same age and grow somewhat faster, at least over much of the sampled size range.
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References
Bedford BC (1983) A method for preparing sections of large numbers of otoliths embedded in black polyester resin. J Cons Int Explor Mer 41:4–12
Everson I (1977) The living resources of the Southern Ocean. FAO/GLO/SO/ 77/1, 156 pp
Everson I (1980) Antarctic Fish Age Determination Methods. BIOMASS Handbook 8, 24 pp
Freytag G (1980) Length, age and growth of Notothenia rossii marmorata Fischer 1985 in the West Antarctic waters. Arch FischWiss 30:39–66
Gubsch G (1982) Zur Verbreitung und Biologie der Eisfische (Chaenichthyidae) im atlantischen Sektor der Antarktis. Fischereiforsch 20:39–47
Kock KH (1980) Graphical analysis of length-frequency distribution of Champsocephalus gunnari Lonnberg (Channichthyidae) from South Georgia. Cybium 3e serie 8:33–42
Kock KH (1981) Fischereibiologische Untersuchungen an drei antarktischen Fischarten:Champsocephalus gunnari Lonnberg, 1905, Chaenocephalus aceratus (Lonnberg, 1906) und Pseudochaenichthys georgianus Norman, 1937 (Notothenioidei, Channichthyidae). Mitt Inst Seefisch Hamburg (32):1–226
North AW, White MG (1987) Reproductive strategies of Antarctic fish. Proc V Congr Europ Ichthyol Stockholm 1985:381–390
Pankhurst NW (1990) Growth and reproduction of the Antarctic Nototheniid fish Pagothenia borchgrevinki. Polar Biol 10:387–391
Scherbich LV (1975) Method for determining age and onset of sexual maturity in the marbled cod Notothenia rossii marmorata. J Ichthyol 15:82–87
Tomo AP, Barrera-Oro E (1986) Age and length growth of Champsocephalus gunnari, Lonnberg 1905 (Pisces, Channichthyidae), in the area of Elephant Island, West Zone, Antarctica. Contrib Inst Antart Argentino 319:1–14
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Vacchi, M., Romanelli, M. & La Mesa, M. Age structure of Chionodraco hamatus (Teleostei, Channichthyidae) samples caught in Terra Nova Bay, East Antarctica. Polar Biol 12, 735–738 (1992). https://doi.org/10.1007/BF00238875
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DOI: https://doi.org/10.1007/BF00238875