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Record #173885:

Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area / L.V. Shcherbich.

Title: Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area / L.V. Shcherbich.
Author(s): Shcherbich, L. V.
Date: 2005.
In: CCAMLR Science. (2005.), Vol. 12 (2005)
Abstract: Otolith microstructure was analysed using samples taken in February-March 2002. Year classes of juveniles from spawning in split-years 1999-2000 and 2000-01 showed mean width of daily otolith growth increments decreasing from 6 μm during first 100 days (total length (TL) 4.5 cm) to 2.8 μm at 500 days (TL 13.1 cm). Pelagic stage of egg incubation development for fish of 2001/02 year class lasted four months, based on retrospective count of daily increments, with TL varying from 5.5-10.4 cm for fish in their first year (120-250 days) to 12.5-13.3 cm in 1-year-old fish (477-533 days). Radius of first annulus ranged from 0.7 to 1.3 mm. Relationship found between fish length and daily otolith increments could be used for age differentiation of juvenile fish between consecutive year classes.
Notes:

CCAMLR Science. Vol. 12 :173-181 (2005).

Keywords: 639.2 -- Fisheries.
639.2.001 -- Fisheries research.
639.227.5 -- Nototheniform fisheries.
597 -- Fish.
597.583.15 -- Channichthyidae: Champsocephalus gunnari.
591.1 -- Animal physiology.
591.134 -- Animal growth.
591.134.2 -- Animals, rate of growth.
591.139 -- Animals, ageing.
59.087 -- Age determination, zoology.
591.35 -- Animals, immature.
H4 -- Zoology: fish.
(*7) -- Antarctic regions.
(*723) -- South Georgia and Shag Rocks.
(*80) -- Southern Ocean.
(*82) -- South Atlantic Ocean.
SPRI record no.: 173885

MARCXML

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001 SPRI-173885
005 20220929123636.0
007 ta
008 220929s2005####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-173885
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aShcherbich, L. V.
245 10 ‡aOtolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area /‡cL.V. Shcherbich.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2005.
300 ## ‡ap. 173-181 :‡bill., diag.
500 ## ‡aCCAMLR Science. Vol. 12 :173-181 (2005).
520 3# ‡aOtolith microstructure was analysed using samples taken in February-March 2002. Year classes of juveniles from spawning in split-years 1999-2000 and 2000-01 showed mean width of daily otolith growth increments decreasing from 6 μm during first 100 days (total length (TL) 4.5 cm) to 2.8 μm at 500 days (TL 13.1 cm). Pelagic stage of egg incubation development for fish of 2001/02 year class lasted four months, based on retrospective count of daily increments, with TL varying from 5.5-10.4 cm for fish in their first year (120-250 days) to 12.5-13.3 cm in 1-year-old fish (477-533 days). Radius of first annulus ranged from 0.7 to 1.3 mm. Relationship found between fish length and daily otolith increments could be used for age differentiation of juvenile fish between consecutive year classes.
650 07 ‡a639.2 -- Fisheries.‡2udc
650 07 ‡a639.2.001 -- Fisheries research.‡2udc
650 07 ‡a639.227.5 -- Nototheniform fisheries.‡2udc
650 07 ‡a597 -- Fish.‡2udc
650 07 ‡a597.583.15 -- Channichthyidae: Champsocephalus gunnari.‡2udc
650 07 ‡a591.1 -- Animal physiology.‡2udc
650 07 ‡a591.134 -- Animal growth.‡2udc
650 07 ‡a591.134.2 -- Animals, rate of growth.‡2udc
650 07 ‡a591.139 -- Animals, ageing.‡2udc
650 07 ‡a59.087 -- Age determination, zoology.‡2udc
650 07 ‡a591.35 -- Animals, immature.‡2udc
650 07 ‡aH4 -- Zoology: fish.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*723) -- South Georgia and Shag Rocks.‡2udc
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
651 #7 ‡a(*82) -- South Atlantic Ocean.‡2udc
773 0# ‡7nnas ‡tCCAMLR Science. ‡gVol. 12 (2005) ‡wSPRI-131147
916 ## ‡a2006/02/21 -- HS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220929 ‡bHS