Search results
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Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone
status and fishing mortality is problematic and should be avoided. File: 04ziegler-et-al.pdf ... n L 7 5 S lo pe e st im at e of Z /K True Z/KStock statusStock status Figure 2: Examples for length ... ) (Consta- ble and de la Mare, 1996; Constable et al., 2003) was used to simulate a single age-structured ... and W.K. de la Mare. 2003. Generalised Yield Model: User’s Manual and Specifications. Version 5.01b ... in comparisons between areas and in de- pletion studies (McKinlay et al., 2008; SC-CAMLR, 2008, paragraph 5.82 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Author(s): Ziegler, P.E., D.C. Welsford and A.J. Constable
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
et al. (2013) used 2 006 input values per scenario (this total does not include time series ... Watters et al. (2013) describe a spatially resolved stochastic simulation model representing one prey ... ) proposed by Hewitt et al. (2004) (Figure 1). During its development, this model was variously referred ... to as KPFM, KPFM2 and Foosa in Watters et al. (2005; 2006; 2008a), Hill et al. (2007a, 2007b) and Plagányi ... Paper Title: The sensitivity of multiple output statistics to input parameters in a krill ... –predator–fishery ecosystem dynamics model Abstract / Description: There is a global need to develop ... stock or the fishery. Output statistics were most sensitive to a parameter controlling predator ... recruitment through pre-recruit mortality. A parameter mediating the effect of a forcing function on krill ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
of discarding are likely to render the fishery commercially unviable. File: Belchier-et-al.pdf ... a fo r th e re la tio ns hi p be tw ee n lo g w ei gh t a nd lo g le ng th (f ro ... ; C W – c ar ap ac e w id th . Tr ai t Pa ra lo m is fo rm os a P. sp in os is si m a N eo ... s a b R – sq n Pa ra lo m is sp in os is si m a 6. 45 7 0. 99 4 0. 97 7 36 7 P. fo rm ... Ta bl e 4: R eg re ss io n pa ra m et er s fo r Pa ra lo m is s pi no si ss im ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Author(s): Belchier, M., T. Peatman and J. Brown
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
and Mangel, 2006). This paper extends the work conducted by de la Mare and Constable (1990) on develop- ing ... The generalised yield model (GYM; Consta- ble and de la Mare, 1996) was used to simulate a range of scenarios ... of the Commission (CCAMLR-XXI). CCAMLR, Hobart, Australia: 205 pp. Constable, A.J. and W.K. de la Mare. 1996 ... of uncertainty. CCAMLR Science, 3: 31–54. Constable, A.J., W.K. de la Mare, D.J. Agnew, I. Everson ... may contribute to delaying or preventing the recovery of such stocks. Through simulating a Patagonian ... , and relatively low levels of research catch can significantly delay the recovery of a stock. Scenarios ... assessed in this study indicate that, where a stock has been depleted to at or below 20% of the median ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Author(s): Welsford, D.C
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Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?
o f lo ng lin e se gm en t o bs er va tio ns o f th e pr es en ce ( P) o r ab se nc ... UNGA A/RES/61/105. UNGA, New York: 21 pp. Available at: www. un.org/Depts/los/general_assembly ... \Journal%202011\final%20papers\Parker%20and%20Smith\tr-ch%20for%20author\www.un.org\Depts\los ... %202011\final%20papers\Parker%20and%20Smith\tr-ch%20for%20author\www.un.org\Depts\los\general_assembly ... rates and benthic invertebrate catch rates at the scale of a longline segment, ~1 200 m. Analysis of the ... predicting Antarctic toothfish (Dissostichus mawsoni) catch at the scale of a longline segment. This supports ... catch at the scale of a longline set, ~7 km. Further studies at intermediate scales (10–100 km) would be ... distributions, showing a high degree of spatial overlap with the fishery. File: 06parker-smith.pdf ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Author(s): Parker, S.J. and M.H. Smith
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Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region
of Antarctic toothfish. File: Pinkerton et al.pdf ... of 10 tonnes reported in 1998 which increased to 480 tonnes in 2005 (Hanchet et al., 2008a ... ). Grenadiers are also a major prey species of Antarctic toothfish in the region (Fenaughty et al., 2003 ... ; Stevens et al., 2012). Eco- system modelling of the Ross Sea region suggests that toothfish are the main ... -induced trophic cascades (Pinkerton et al., 2010). Grenadier caught as by-catch and found in stom- achs ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Author(s): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
Ross Sea. File: Jo et al.pdf ... ) the diet of Antarctic toothfish on the Ross Sea continental shelf (La Mesa et al., 2004; references ... and Christoffel, 1969; Eastman, 1985; La Mesa et al., 2004) and also a key prey species in the southern Ross Sea ... n of A nt ar ct ic to ot hf is h in th e so ut he rn R os s Se a. V al ue s ar e m ea ... understand the entire food-web structure in the southern Ross Sea. Jo et al. 22 Introduction Antarctic ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Author(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
whereby the relatively long time series of catch-at-age and mark-recapture data from the main trawl ground ... : 02candy-et-al.pdf ... was adopted whereby the relatively long time series of catch-at-age and mark-recapture data from the main ... be r o f t ag s r el ea se d an d re ca pt ur ed e xc lu de s t ag s f or w hi ch re ca pt ur ... e 4: C om pa ris on o f F e st im at ed b y B O D E m od el a nd c al cu la te d fr om ... are not presented for this version of the fit- ted BODE model. Candy et al. 34 discussion For the HIMI data ... d B (f 2) u se d in th e fit . Y ea r o f r el ea se : 19 98 19 99 20 00 20 01 20 02 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Author(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
allowable catch under the set of decision rules applied in these CCAMLR fisheries (Constable and de la ... -rECapturE data: a multi-Cohort simulation study Comparing Estimation for a modEl BasEd on thE Baranov ... for the Patagonian toothfish (Dissostichus eleginoides) (Hillary et al., 2006; Candy and Constable, 2008) a pre ... of datasets have been proposed, such as the method of Leigh et al. (2006) that uses multi-year tagging ... Paper Title: Estimation of natural mortality using catch-at-age and aged mark-recapture data: a ... multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a ... applied. Two alternative estimation models were developed both using a Poisson likelihood for annual ... ; constant catch ODE (CCODE) model uses a new total mortality ODE with constant within-year catch per unit ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Author(s): Candy, S.G.
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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
of fishing-vessel-based acoustic data for a range of objectives. File: Wang et al.pdf ... (m ) Lo g 1 0 l en gt h (m ) Lo g 1 0 p er im et er (m ) Lo g 1 0 a re a (m 2 ) R aw ... ss /m R P 100 200 300 De pth /m R P 2 2.5 3 3.5 Lo g 10 Le ng th /m R P 2.5 3 3.5 ... 300 De pth /m R P 2 2.5 3 3.5 Lo g 10 Le ng th /m R P 2.5 3 3.5 4 4.5 Lo g 10 Pe rim ... /d B r e 1 m‐ 1 R P 50 100 150 Th ick ne ss /m R P 100 200 300 De pth /m R P 2 2.5 3 3.5 Lo g 10 Le ng th ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Author(s): Wang, X., J. Zhang and X. Zhao