Resultados de la búsqueda
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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
/ Description: An exchange system was established among Members of CCAMLR to compare age determinations for the ... agreement in age determination was highest for scales of juvenile N. rossii and for otoliths of juvenile C ... 2 !ID 0 s 18 15 20 25 1 ength (crtd Figure 8: Length versus age plot from comparative age ... following table indicates that agreement between two readers was in the order of 80%. Agreement could have ... five investigators examined both structures. Two (4 and 5) were experienced and one (2) was less ... . Two of the investigators were experienced (1 and 3), one was experienced in ageing C. gunnari by fin ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Autor(es): Kock, K.-H.
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The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach
. The addition of a 20 g lead sinker to a conventional 20 g tuna hook reduced the sink time of bait ... refer to thawed bait. lwashi 80 S $60 ! - C . r40 i7, 20 0 0 - - : - : - I ... the effect of added weight (sinkers) on the sink rates of bait. Lead sinkers weighing 10 g, 20 g, 30 ... , 80% of small baits and 20% of large baits floated when thawed (Figure 1). As mentioned above, these ... . Fish with inflated swim bladders floated, however, even when thawed. The addition of a 20 g lead ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Autor(es): Brothers, N., A. Foster and G. Robertson
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e-imaf-02 report.pdf
... rate was 0.0015 birds/thousand hooks compared to 0.002 in the two previous years (Table 6.3). Of the ... estimated killed in the two previous years (Table 6.3). It was noted that WG-FSA-02/17, which also ... Group also recalled its advice to the Scientific Committee two years ago (SC-CAMLR-XIX, Annex 5 ... (Table 6.2) compared with 30 birds last year and 21 the year before (Table 6.3). The overall catch
application/pdf attached to:Ad Hoc WG-IMAF-02
Meeting Report : Ad Hoc WG-IMAF-02
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
fish (27-40 cm). One, however, was composed almost entirely of 1 and 2 year olds (about 12-30 cm). In ... 90 mm, to protect first spawners, or 100 mm, to give an age at first capture of 4 years.' * The ... spawning aggregations w a s changed f r o m be tween 1 April and 30 November , t o between 1 March ... and Minimum Size Limits One of the most commonly used approaches to increasing the age at first ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Autor(es): Parkes, G.B
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Food consumption by predators in a CCAMLR integrated study region
activity cycle which can be one, two or three years long within which there may be two breeding attempts ... belonging to one of two basic categories: ashore (Le., breeding and moult period) and at-sea (rest of year ... (when successful in rearing a chick) and have cycles lasting two years. The king penguin typically has ... two breeding attempts in three years at South Georgia. Thus the estimation procedure is based on an ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Autor(es): Croxall, J.P., C. Ricketts and A.G. Wood
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e-cc-xxiv-a4.pdf
... once every two years, and in 1995 that this would be required at least once every three years. As a ... Science/Compliance Officer in the next two years and the consequential loss of corporate memory which ... in respect of a single year, a single species group and one subarea/division; (ii) each ... Staff Assessment Levy 506 400 548 000 20 200 102 300 82 100 Surplus from Prior Year 24 400 0 3 080
application/pdf attached to:SCAF-05
Meeting Report : SCAF-05
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
species, such as Notothenia rossii and Pseudochaenichtyhys georgianus, spawn at least one to two months ... takes one year or more, whereas in others gonad maturation was completed within one season. Length at ... sexual maturity and length at first spawning in Champsocephalus gunnari was one year later on the ... from 1977/78 to 1989/90, and was in its heyday from 1977/78 to 1981/82. Except for Elephant Island, the ... Pseudochaetzichtlzys georgiantis, spawn at least one to two months later than at South Georgia. Channichthyids (except ... Islands due to one large haul of more than 800 kg/30 min. The number of species slightly increased from ... of 20-30 m off the southwest coast of Elephant Island by a 3 m beam trawl. Early juveniles of other ... index (GSI) of all species investigated, except one, was likely to be at least 20-25 at spawning. The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Autor(es): Kock, K.-H., C.D. Jones and S. Wilhelms
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.1
requireme of CM 24-02 are met. Limit of three (3) seabirds per vessel Carry forward O At least two (2 ... December 2008 to 30 November 2009. Figure 1: General map of Division 58.4.1 and location of SSRUs ... D. mawsoni in Subarea 88.1). 2. Stocks and areas 7. The Working Group noted that the two-stock ... /mature distribution of animals of one stock, as is seen in the Ross Sea. It was agreed that even though ...
Document : Site Section: Publications
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A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season
0.21 tonnes. The vessel039;s fishing master had no experience of fishing for icefish and was not well ... Abstract: During the 1 997198 season, one vessel, Chilean registered stern trawler Betanzos ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ...
Meeting Document : WG-FSA-98/53 : Autor(es): G. Parkes, A. King and C. Jones (United Kingdom)
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Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles
on each type of behaviour and number of different types of behaviour displayed by one bird during the ... disturbance by UAVs Resting Comfort Vigilance/anxiety Aggression 100 90 80 70 60 50 40 30 20 ... 40 km, max. flight time 30 minutes, flight speed 70–80 km/h, fuel – Li-Pol battery (electric engine ... breeding group, with the cameraman sitting about 2 m further away. Each recording lasted 18 to 20 minutes ... the piston engine UAV was further away, and the noise level decreased, only 20% of birds exhibited ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Autor(es): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój