Search results
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A simple approach for calculating the potential yield of krill from biomass survey results
of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance. File: 12 ... on the relative values of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance. ... -exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ depends strongly ... -exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ depends ... the seasonal growth of krill. This model for the length of kriU of age (a+t) years may be written: 208 ... for krill in these calculations indicates a fairly long-lived animal. If this is correct, one would ... ) for the growth model of equation (2). Age a Length £(a) (years) (mm) 0 0 1 22 2 36 3 44 4 50 5 54 ... MODEL . The numbers of lain of age a years at the start of "year" y (Ny,a) are governed ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Author(s): Butterworth, D.S., A.E. Punt and M. Basson
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
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 southerly ... species, such as Notothenia rossii and Pseudochaenichtyhys georgianus, spawn at least one to two months ... indicate that in some species final maturation of the gonads takes one year or more, whereas in others ... of G. gibberifvons belonging to age classes 0-2 (Figure 6) were caught in some numbers in waters of 20-30 m off ... maturation of the gonads takes one year or more, whereas in others gonad maturation was completed within one ... , spawn at least one to two months later than at South Georgia. Channichthyids (except C. gt~nnari ... South Shetland Islands due to one large haul of more than 800 kg/30 min. The number of species ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Author(s): Kock, K.-H., C.D. Jones and S. Wilhelms
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Focusing and testing fisher know-how to solve conservation problems: a common sense approach
, turtles and seabirds, can pose serious threats to specific animal populations causing public outcry ... to seabird mortality in two fisheries: the Puget Sound drift gillnet fishery for sockeye salmon ... in proof at two levels. At the practical level, fisher’s ideas are tested in the context of an active ... and seabirds, can pose serious threats to specific animal populations causing public outcry and regulatory ...
Meeting Document : WG-FSA-03/20 : Author(s): E.F. Melvin and J.K. Parrish (USA)
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Implementing Article II of the CAMLR Convention
3 of the Convention are met. Further, the language of Article IX(2)(g) makes clear that area protection is one ... protection is one of the measures that may be used to implement the ecosystem conservation approach ... , paragraph 3 of the Convention are met. Further, the language of Article IX(2)(g) makes clear that area ... of the reasoning behind Article II and other aspects of the Convention. Dr. Hofman notes that that Convention ...
Meeting Document : CCAMLR-XXXIV/BG/25 : Author(s): Submitted by ASOC
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e-cc-iv.pdf
... on the proposed Krill Simulation Study. One view was that the Scientific Committee should be asked to reconsider ... as a preventative measure could unnecessarily interfere with the rational use of resources, one of the objectives ... information concerning past fishing activities in these subareas, including length and age composition data ... term, from 1 July 1986 to 30 June 1990 in accordance with Article XVII of the Convention. Dr Powell ... Scientific Committee. 11. Two opinions were given on the proposed Krill Simulation Study. One view was ... decisions pursuant to Article XX of the Convention with respect to the collection and reporting of data on ... the submission of data on commercial fishing. Because the Antarctic reporting period ends on June 30 ... Commission ANNEX C Chairman's Report ANNEX D Report of the Standing Committee on Administration
application/pdf attached to:CCAMLR-IV
Meeting Report : CCAMLR-IV
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e-sc-xxxi-a06.pdf
... of Germany and Ukraine and one vessel from each of Chile and Poland. The notifications are for trawl ... coefficients between CPUE and AAO trends provide evidence that the ongoing climate changes are one ... ) and ‘high mortality’ (M = 3). CVs of either 0%, 10%, 20% or 30% were added to the observed recruitment ... ) that recruitment might be serially correlated over time, with good recruitment periods of a year or two occurring ... serially correlated over time, with good recruitment periods of a year or two occurring on approximately a ... in providing detailed descriptions of the method(s) used on the vessels to estimate each parameter ... pass through the mesh during towing. The description of chafer construction and its installation on ... fishery on finfish stocks. The Working Group requested the methodologies and assumptions of these two
application/pdf attached to:WG-EMM-12
Meeting Report : WG-EMM-12
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Schedule of Conservation Measures in Force 1990/91
eleginoides - 120 mm Notothenia gibberifrons, Notothenia kempi, Nototheniu squam$-ons - 80 mm ... of Inspection Procedure 1. ' The inspector shall measure one series of 20 meshes, selected in accordance ... ). For the purposes of determining the mesh size in accordance with Article 5 when using a weight or dynamometer, one ... tapering edges with a taper of one to eight on each side, or only tapering edges with the taper defined ...
Document : Site Section: Publications
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Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
fewer local trips and both sexes spent longer at sea than in years of higher breeding success. Meal ... fewer local trips and both sexes spent longer at sea than in years of higher breeding success. Meal ... nHLtJH, IIpll~oCMMofi IITeH4ah.r 3a OnMH pas, 6b1na HopMaJIbHofi, H 0 6onee AnllTenbHbIe IIOXOAbI 3a ... Season year is shown in Table 1. We found a negative (Kruskal-Wallis One-way ANOVA on Ranks ... numbers of chicks reaching fledging age Breeding success of predators such as seabirds (Crawford ... between annual breeding success rates were identified by a one-way ANOVA and classified into groups ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Author(s): Irvine, L.G., J.R. Clarke and K.R. Kerry
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Schedule of Conservation Measures in Force 2008/09
by the Commission in accordance with Article IX of the Convention on the Conservation of Antarctic Marine Living ... the measure within that category; the year in which the latest version of the measure was adopted or revised ... of Conservation Measures Adopted Each Year..................................(xxxviii) CONSERVATION MEASURE 10 ... ) ................ 29 Dissostichus Re-export Document (from 1 June 2009) ........... 30 Annex 10-05 ...
Document : Site Section: Publications
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Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni. in Division 58.4.2
Description / Abstract: Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni ... Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni. in Division 58.4.2 ... Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni. in Division 58.4.2 ... in Division 58.4.2. 3. In 2018, the fishery was limited to a total of five vessels, one each from Australia ... and 2007. One IUU-listed fishing vessel was sighted in 2009 and two IUU-listed vessels were sighted ... . 9. In 2014, one research block was designated in Division 58.4.2 and catch limits applied (Figure ... , as well as collection of otoliths for age determination of the target and most frequently taken by-catch ...
Document : Site Section: Publications