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1. Australia: An integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2

   separate datasets, a biomass index and proportions-at-age, is preferred over the numbers of fish at age ... assuming all fish of stage ≥ 2 are mature (black) and all fish stages ≥ 2 will be mature at their age + 2 ... . Stock hypothesis 3. Fishing history 4. Data collection 5. History of stock assessments 6. Data for ... • Ontogenetic movement: Péron et al (2016) Modelling spatial distribution of Patagonian toothfish through ...

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2. Fish the Sea not the Sky

   Description / Abstract:  How to avoid by-catch of seabirds when fishing with bottom longlines ... attachment to non-IW longlines of 5 kg weights at 50 to 60 m intervals are recommended. 3. Vessels using ... at least 8.5 kg mass shall be used, spaced at intervals of no more than 40 m, or weights of at least ... 6 kg mass shall be used, spaced at intervals of no more than 20 m. 4. Longlines shall be set at ... design of mitigation measures may be tested on vessels carrying two observers, at least one appointed in ...

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3. UK: 48.4 Assessment Summary

   @grad_tol 0.002 @MCMC start 0 length 1300000 keep 3000 adaptive_stepsize True adapt_at 100000 200000 ... fish, t0 is assumed zero. Source data/Values Model representation Population.csl @size_at ... _age_type von_Bert @size_at_age_dist normal @size_at_age k 0.092 t0 0.00 Linf 153.0 cv 0.08 @size_weight a 4.150e ... -09 b 3.194 verify_size_weight 150 30 50 Estimation.csl @estimate parameter size_at_age.k lower_bound ...

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4. Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Subarea 88.1

   Subareas 88.1 and 88.2 have been fished at some point in time, the proportion of effort in each SSRU has ... the influence of variable sea-ice conditions on the operation of a fishery at the resolution of a ... grounds clear of ice, as was the 2011 season at 81%. 5 Figure 2: Ross Sea fishery ice index ... of smaller fish, at 50–100 cm, caught on the Ross Sea shelf, but the length distribution of fish ...

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5. Fishery Report 2013: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)

   catch only at Réunion Island. In 2013, a catch limit set by France of 700 tonnes was allocated to seven ... history of Dissostichus eleginoides in the French EEZ at Crozet Islands (Subareas 58.6). The IUU ... and peaked the following year at an estimated 11 760 tonnes. 10. Estimates of IUU catch in Subarea ... at a level intended to provide sufficient information (including sufficient recaptures of tagged ...

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6. Fishery report: Dissostichus eleginoides South Georgia (Subarea 48.3)

   reanalysis of the scientific observer data to estimate age-at- maturity, using the current growth curve (L ... taking into account the distribution of length-at-age, and established appropriate parameters for a ... double linear approximation of a mixed-sex maturity ogive to be used in CASAL assessments: 0% mature at ... for a CASAL assessment of SGSR toothfish, the two-fleet model fitting to catches at length, CPUE and ...

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7. Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 88.1

   -ice conditions on the operation of a fishery at the 5 resolution of a season (WG-FSA-15/35 ... ‘good’ ice year with 71% of the fishing grounds clear of ice, as was 2011 at 81%. The sea-ice ... –170 cm. In most years, there has also been a mode of smaller fish, at 50–100 cm, caught on the Ross ... . eleginoides is required to tag and release toothfish at the rate of 1 fish per tonne of green weight caught ...

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8. Fishery Report 2015: Exploratory fishery for Dissostichus spp. in Subarea 88.1

   the influence of variable sea-ice conditions on the operation of a fishery at the resolution of a ... grounds clear of ice, as was the 2011 season at 81%. 5 Figure 2: Ross Sea fishery ice index ... of smaller fish, at 50–100 cm, caught on the Ross Sea shelf, but the length distribution of fish ... Dissostichus spp. at the rate of 1 toothfish per tonne of green weight caught throughout the season since 2004 ...

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9. Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)

   (time series) At its 2004 meeting, WG-FSA recommended the subdivision of Subarea 48.3 into areas ... data-updated version of the assessment model used to calculate the long-term yield for this stock at ... -at-age curve is interpreted via the specified growth curve, the specified CV of length-at-age ... catch-at-length, CPUE and tagging data No change except the inclusion of the 2007 data for all ...

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10. Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Subarea 88.1

    most SSRUs in Subareas 88.1 and 88.2 have been fished at some point in time, the proportion of effort ... index of the influence of variable sea-ice conditions on the operation of a fishery at the resolution ... at 81%. The sea-ice conditions in 2017 enabled the fishery to access most of the northern fishing ... areas, there has been a broad mode at about 120–170 cm. In most years, there has also been a mode of ...

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