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1. Seals: Trophic modelling of the Ross Sea

   seal attacks appear to fall off dramatically after crabeaters reach one year of age. Sexual maturity ... in February (Blix & Nordøy 2007). Ross seals are thought to reach sexual maturity at age 3 years ... is reasonable as a first approximation. We estimate values of 60% seals breed each year, one young per pair per ... ). Crabeater seals are considered to be the most abundant seal species and one of the most numerous large ...

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2. CEMP Standard Methods

   the nest at the beginning of the first incubation shift. Care should be taken to check the nest one to two ... : this will minimise differences in age/experience among the sample nests between years). 2. For each nest, day ... is over the colonies and the number of passes needed. For example, a Bell 212, one of the noisiest ... one pass at 1 500 feet above ground level, but if more passes or loitering is necessary, they also ...

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3. Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 88.2

   Description / Abstract:  Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni ... Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 88.2 ... Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 88.2 ... in the northern area for only one or two years based on tagging data (WG-SAM-14/27). Table ... the age frequency of the catch in each of the strata in every year. Where available, the otolith ages ... length-frequency distributions for those years to produce annual catch-at-age distributions (WG-FSA-18 ... in the future. Modelling results suggested that a two-area model with sex- and age-specific migrations from ...

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4. Conservation measures 2019/20 adopted track changes

   Conservation measures 2019/20 adopted track changes ... for submitting notifications at least 30 days prior to the deadline, and again at least one week prior ... Compliance Report for 1 August1 July [year] to 31 July 30 June [year] [Contracting Party] Part ... , and any subsequent changes, shall be notified to the Secretariat at least 30 days before they take effect ... inspection conducted under this conservation measure within 30 days of the port inspection or as soon ...

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5. Scientific Abstracts 2001

   where a large proportion of small size classes, i.e. one-year-old juvenile krill, was found. Krill ... of 70% and 93% since 1999/ 2000 respectively). The number of plastic packaging bands (one) was also ... , and for the first time, with grey-headed albatrosses. One Antarctic prion stomach, out of five dis- sected ... conservation measures. Additionally, ESCAPE encour- ages an Environmental Impact Assessment (EIA) prior ... (document number 8 submitted at the 2001 meeting of the Working Group on Ecosystem Monitoring and Management ... ). Unpublished papers must not be cited without written permission of the author(s). Addresses of principal ...

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6. SC-CAMLR-SSP/9

   ). Catch-at-age for all recruited year classes i U = tr, tr + 1, ... , tm) can be expressed as where Fi ... recruited fish M = natural mortality 't = research survey duration (in years) R = recruitment t r = age ... at recruitment t m = terminal age L\ = time between the beginning of the year and the beginning of the research ... at ages greater than 12. This raises doubts about estimates of M and Z obtained from catch curves ...

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7. CCAMLR's Management of the Antarctic

   (CCAMLR) is recognised as a pioneer in the development of the 'ecosystem approach&#039 ... on 'dependent and related species'. CCAMLR strives to develop management approaches which ... Antarctic marine species which are known to be most important in the food chain. CCAMLR's Management ... of the Antarctic presents a clear and concise description of CCAMLR's diverse and complex work regarding ... (F). For example, if the number of animals of a certain length decrease in any one year, it is difficult ... . 6) Knowing the age at which a animal breeds, and also when and where it breeds, means that fishing can ... Program (CEMP) aims t Natural mortality CM) is a function of age and is the rate at which animals die ... measurements, it is possible to link the age of animals in the catch with their length composition ...

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8. CCAMLR Ecosystem Monitoring Program Standard Methods

   the nest at the beginning of the first incubation shift. Care should be taken to check the nest one to two ... : this will minimise differences in age/experience among the sample nests between years). 2. For each nest, day ... is over the colonies and the number of passes needed. For example, a Bell 212, one of the noisiest ... one pass at 1 500 feet above ground level, but if more passes or loitering is necessary, they also ...

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9. Fishery Report 2018: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b

   Description / Abstract:  Fishery Report 2018: Closed fishery for Dissostichus spp. in Divisions ... Fishery Report 2018: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b ... Fishery Report 2018: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b ... ) ranged from 4 to 48 years for females and from 5 to 48 years for males. These ages may be overestimated ... by one year due to an interpretation issue concerning the location of the first annulus ... F+J F+J F+J 12 Table 2: Number of otoliths aged by Japan. Year Number of otolith readings 2008 652 2010 ... 134 2011 287 2012 265 2013 279 2014 310 2016 207 2017 206 (under aging in this year) Table ...

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10. Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Subarea 88.2

    than, 1 tonne in any one haul or set, then the fishing vessel must move at least 5 n miles away ... in the northern area for only one or two years based on tagging data (WG-SAM-14/27). As fishing effort ... to comprise a single stock and are currently managed with two catch limits: one for SSRUs 882C–G (slope ... to represent the age frequency of the catch in each of the strata in every year. Where available, the otolith ...

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