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Record #186043:

Line weights of constant mass (and sink rates) for Spanish-system Patagonian toothfish longline vessels / G. Robertson, and 5 others.

Title: Line weights of constant mass (and sink rates) for Spanish-system Patagonian toothfish longline vessels / G. Robertson, and 5 others.
Author(s): Robertson, G.
Date: 2008.
In: CCAMLR Science. (2008.), Vol. 15 (2008)
Abstract: Reports results of experiment to determine relationship between sink rates of longlines equipped with bags of rocks and those with steel weights of equivalent masses, in relation to sink rates associated with line-weighting provisions of CCAMLR Conservation Measure 25-02. Spanish-system longlines with 8 kg rock weights every 40 m averaged 0.22 m s⁻¹ to 2 m depth, which would be equal to or exceeded by lines with 5 kg steel weights. Sink rates of newly developed Chilean longlines greatly exceeded those of Spanish system, ranging from 0.68 m s⁻¹ (4 kg rocks) to 1.31 m s⁻¹ (8 kg steel) in shallow depth ranges. Results indicate that hydrodynamically shaped steel weights weighing 5 kg would be appropriate substitute for 8.5 kg rock weights irrespective of fishing method, with added advantage of removing need for frequent repair of netting bags holding rocks.
Notes:

CCAMLR Science. Vol. 15 :93-106 (2008).

Keywords: 639.2 -- Fisheries.
639.2.001 -- Fisheries research.
639.2.06 -- Fisheries, vessels and equipment.
639.2.081 -- Fishing, methods and equipment.
639.227.5 -- Nototheniform fisheries.
597.583.12 -- Nototheniidae: Dissostichus eleginoides.
598.421 -- Procellariiformes.
502.743 -- Conservation, animal species.
N -- Renewable resources.
(*7) -- Antarctic regions.
(*80) -- Southern Ocean.
SPRI record no.: 186043

MARCXML

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001 SPRI-186043
005 20221206020635.0
007 ta
008 221206s2008####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-186043
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aRobertson, G.
245 10 ‡aLine weights of constant mass (and sink rates) for Spanish-system Patagonian toothfish longline vessels /‡cG. Robertson, and 5 others.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2008.
300 ## ‡ap. 93-106 :‡bill., diags., tables.
500 ## ‡aCCAMLR Science. Vol. 15 :93-106 (2008).
520 3# ‡aReports results of experiment to determine relationship between sink rates of longlines equipped with bags of rocks and those with steel weights of equivalent masses, in relation to sink rates associated with line-weighting provisions of CCAMLR Conservation Measure 25-02. Spanish-system longlines with 8 kg rock weights every 40 m averaged 0.22 m s⁻¹ to 2 m depth, which would be equal to or exceeded by lines with 5 kg steel weights. Sink rates of newly developed Chilean longlines greatly exceeded those of Spanish system, ranging from 0.68 m s⁻¹ (4 kg rocks) to 1.31 m s⁻¹ (8 kg steel) in shallow depth ranges. Results indicate that hydrodynamically shaped steel weights weighing 5 kg would be appropriate substitute for 8.5 kg rock weights irrespective of fishing method, with added advantage of removing need for frequent repair of netting bags holding rocks.
650 07 ‡a639.2 -- Fisheries.‡2udc
650 07 ‡a639.2.001 -- Fisheries research.‡2udc
650 07 ‡a639.2.06 -- Fisheries, vessels and equipment.‡2udc
650 07 ‡a639.2.081 -- Fishing, methods and equipment.‡2udc
650 07 ‡a639.227.5 -- Nototheniform fisheries.‡2udc
650 07 ‡a597.583.12 -- Nototheniidae: Dissostichus eleginoides.‡2udc
650 07 ‡a598.421 -- Procellariiformes.‡2udc
650 07 ‡a502.743 -- Conservation, animal species.‡2udc
650 07 ‡aN -- Renewable resources.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
773 0# ‡7nnas ‡tCCAMLR Science. ‡gVol. 15 (2008) ‡wSPRI-131147
916 ## ‡aHS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221206 ‡bHS