Search results

1. Scientific Observer's Manual – Finfish Fisheries – Version 2023

   , if skates are sampled for vertebrae and thorns, the maturity stage is helpful to determine the age ... and in sound detection. The use of otoliths for ageing is especially important when scales, the other ... important hard part used for ageing, are either absent (as in Channichthyids) or lost from the fish ... , cataloguing and ageing of otoliths is agreed upon in the bilateral arrangement between Designating ... Manual for Finfish Fisheries contains guidance on standard tasks and requirements for observers as well ... as supplementary information to aid data collection requirements for toothfish (Dissostichus spp ...

   Document : Site Section: Science

2. Fishery Report 2018: Dissostichus eleginoides South Georgia (Subarea 48.3)

   Description / Abstract:  Fishery Report 2018: Dissostichus eleginoides  South Georgia (Subarea ... Fishery Report 2018: Dissostichus eleginoides South Georgia (Subarea 48.3) ... Fishery Report 2018: Dissostichus eleginoides  South Georgia (Subarea 48.3) ... are provided in Appendix 1). 20. The stock of D. eleginoides in Subarea 48.3 was assessed using an age ... depth preferences with age, with juveniles (<50 cm) living on the continental shelf and moving ... , weights and maturity. Toothfish otoliths are collected by observers for an ageing program that provides ... length-at-age data for assessments. Observers also record whale occurrence at the vessel during hauling ...

   Document : Site Section: Publications

3. Fishery Report: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2

   TOT 88.1, 88.2 Age S el ec tiv ity 10 20 30 40 50 0.0 0.5 1.0 1.5 Male shelf fishery ... selectivity Age S el ec tiv ity 10 20 30 40 50 0.0 0.5 1.0 1.5 Female shelf fishery selectivity Age ... S el ec tiv ity 10 20 30 40 50 0.0 0.5 1.0 1.5 Male slope fishery selectivity Age S el ec tiv ... ity 10 20 30 40 50 0.0 0.5 1.0 1.5 Female slope fishery selectivity Age S el ec tiv ity 10 ...

   Document : Site Section: Publications

4. Fishes: Trophic modelling of the Ross Sea

   ) corresponding to age 9 (2 years) in the assessment model (Dunn et al. 2005a), recent work indicates ... according to catch in the region in each year. Ages were converted to lengths and thence weights of fish ... described by (Dunn & Hanchet 2007a) we estimated the number fish of age year 1–4 not caught in the fishery ... into the adult populations. We estimated these growth transfer fractions from simple age-structured population ...

   Document : Site Section: Publications

5. Scientific Observer's Manual – Krill Fisheries – Version 2023

   rates and determine the specific identity, age and sex of all seabirds caught (ii) assess ... Date dd/mm/yyyy d = day, m = month y = year (e.g. 01/12/2018) Time hh:mm h = hour, m = minute. All ... – 2015 Longline 2011 – 2015 Finfish Trawl 2011 – 2015 Krill Trawl Original 2019 Draft 01/10/2018 ... 2019 Longline 2019 Finfish Trawl 2019 Krill Trawl Draft version presented at WG-FSA-18 for review ... Manual for Krill Fisheries contains guidance on standard tasks and requirements for observers as well as ... supplementary information to aid data collection requirements for Antarctic krill (Euphausia superba) fisheries. ...

   Document : Site Section: Science

6. Conservation measures 2018/19 adopted track changes

   Conservation measures 2018/19 adopted track changes ... ), Recalling provisions as made under Article XXIV of the Convention, Committed to take steps, consistent ... conservation measure in accordance with Article IX of the Convention: 1. The following definitions apply ... of this. If this situation occurs more than two times within a period of one year, the Flag State of the fishing vessel shall ... to the Secretariat within 30 days of its completion. 11.3,4 Each Contracting Party shall forward VMS reports ...

   Document : Site Section: Conservation and Management

7. Schedule of Conservation Measures in Force 1995/96

   on 1 July and finishes on 30 June of the following year. This limit shall be kept under review ... additional series of 20 meshes selected in accordance with Article 3 shall be measured. The mesh size shall ... of the following year. This limit shall be kept under review by the Commission, taking into account the advice ... with Article IX of the Convention for the Conservation of Antarctic Marine Living Resources. Conservation ...

   Document : Site Section: Publications

8. New Zealand: Review of the Ross Sea region stock assessment

   New Zealand: Review of the Ross Sea region stock assessment ... Proportion of females 15 16 Age (years) L en g th ( cm s) 0 10 20 30 40 50 0 50 100 150 200 ... Sea slope • Natural mortality 0.13 based on catch at age data analysis and literature review 14 ... Ross Sea shelf survey data (C2 and observer logbook) • Age-length keys by year: North vs Slope/shelf ... in 2007 as not expected to represent an index of abundance (standardised showed below) 30 31 Age ...

   Document : Site Section: Meetings

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

   years of age and can live to at least 27 years, whereas M. caml reaches full size at about 15–20 years ... otoliths collected by observers from New Zealand vessels have been selected for ageing each year ... length-frequency distributions for each year to produce annual catch-at-age distributions (WG-FSA-17/07 ... , as well as collection of otoliths for age determination of the target and most frequently taken by-catch ... Description / Abstract:  Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in ...

   Document : Site Section: Publications

10. Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)

    –30 Nov Reference date (Start growth eriod) p 1 Dec Weight-at-age (kg, mm) ‘a’ 5.47E-10 ... for finding F in each year 1E-08 Tolerance for resolving catches 0.01 Age first selected 2.5 Age fully ... Years to remove initial age structure 0*** Estimate median SB0 Deterministic Observations to use ... ............................................................................ 6 Fishing mortality (catches since survey) ....................................... 6 Initial age ...

    Document : Site Section: Publications

Pages