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Record #186025:

A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region / S.M. Hanchet, and 4 others.

Title: A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region / S.M. Hanchet, and 4 others.
Author(s): Hanchet, S. M.
Date: 2008.
In: CCAMLR Science. (2008.), Vol. 15 (2008)
Abstract: Reviews aspects of reproduction, size distribution and movements of Antarctic toothfish and investigates drift of eggs and larvae over 6-24 month period. Model outputs indicated that locations of larvae after 18-24 months were moderately consistent with distribution of smallest toothfish taken in fishery. Hypothesis is that Dissostichus mawsoni spawn mainly on ridges and banks of Pacific-Antarctic ridge to north and east of Ross Sea during austral winter and spring. Eggs and larvae become entrained by Ross Sea gyres and move either west to Balleny Islands and adjacent Antarctic continental shelf; south onto Ross Sea shelf; or eastwards with eastern Ross Sea gyre. As juveniles grow in size they move west back towards Ross Sea shelf and then into deeper water. As they mature they move gradually deeper and gain condition on continental slope before undergoing northwards spawning migration to Pacific-Antarctic Ridge where they probably remain for 6-18 months before migrating back to slope to regain condition.
Notes:

CCAMLR Science. Vol. 15 :35-53 (2008).

Keywords: 597 -- Fish.
597.583.12 -- Nototheniidae: Dissostichus mawsoni.
591.543.43 -- Animal migration.
591.34 -- Larvae.
591.35 -- Animals, immature.
591.36 -- Animals, adult.
591.9(26.02) -- Animal distribution, pelagic.
591.16 -- Animal reproduction.
519.673 -- Modelling.
639.2 -- Fisheries.
639.2.001 -- Fisheries research.
639.227.5 -- Nototheniform fisheries.
N -- Renewable resources.
(*7) -- Antarctic regions.
(*76) -- Ross Dependency.
(*80) -- Southern Ocean.
(*88) -- South Pacific Ocean.
(*881) -- Ross Sea.
SPRI record no.: 186025

MARCXML

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007 ta
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035 ## ‡aSPRI-186025
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aHanchet, S. M.
245 12 ‡aA hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region /‡cS.M. Hanchet, and 4 others.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2008.
300 ## ‡ap. 35-53 :‡bill., diags., maps.
500 ## ‡aCCAMLR Science. Vol. 15 :35-53 (2008).
520 3# ‡aReviews aspects of reproduction, size distribution and movements of Antarctic toothfish and investigates drift of eggs and larvae over 6-24 month period. Model outputs indicated that locations of larvae after 18-24 months were moderately consistent with distribution of smallest toothfish taken in fishery. Hypothesis is that Dissostichus mawsoni spawn mainly on ridges and banks of Pacific-Antarctic ridge to north and east of Ross Sea during austral winter and spring. Eggs and larvae become entrained by Ross Sea gyres and move either west to Balleny Islands and adjacent Antarctic continental shelf; south onto Ross Sea shelf; or eastwards with eastern Ross Sea gyre. As juveniles grow in size they move west back towards Ross Sea shelf and then into deeper water. As they mature they move gradually deeper and gain condition on continental slope before undergoing northwards spawning migration to Pacific-Antarctic Ridge where they probably remain for 6-18 months before migrating back to slope to regain condition.
650 07 ‡a597 -- Fish.‡2udc
650 07 ‡a597.583.12 -- Nototheniidae: Dissostichus mawsoni.‡2udc
650 07 ‡a591.543.43 -- Animal migration.‡2udc
650 07 ‡a591.34 -- Larvae.‡2udc
650 07 ‡a591.35 -- Animals, immature.‡2udc
650 07 ‡a591.36 -- Animals, adult.‡2udc
650 07 ‡a591.9(26.02) -- Animal distribution, pelagic.‡2udc
650 07 ‡a591.16 -- Animal reproduction.‡2udc
650 07 ‡a519.673 -- Modelling.‡2udc
650 07 ‡a639.2 -- Fisheries.‡2udc
650 07 ‡a639.2.001 -- Fisheries research.‡2udc
650 07 ‡a639.227.5 -- Nototheniform fisheries.‡2udc
650 07 ‡aN -- Renewable resources.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*76) -- Ross Dependency.‡2udc
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
651 #7 ‡a(*88) -- South Pacific Ocean.‡2udc
651 #7 ‡a(*881) -- Ross Sea.‡2udc
773 0# ‡7nnas ‡tCCAMLR Science. ‡gVol. 15 (2008) ‡wSPRI-131147
916 ## ‡aHS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220925 ‡bHS