Résultats de la recherche
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Consideration of major issues in ecosystem monitoring and management
, it can be seen from Figure 4 that for those species for which survivorship is lowest, breeding ... Recruitment normal Figure 4: The effect of breeding failure and population size. During the fi rst 20 years ... rates can 223 Ecosystem monitoring and management 0 20 40 60 80 100 0 2 4 6 8 10 Age at ... 80 100 0 2 4 6 8 10 Age at first breeding Su rv iv or sh ip (% ) 0.5 Chicks 1.0 Chicks 1.5 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Auteur(s): Everson, I
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
variance represented by equa- tion (4) for the guard stage and equation (5) for the crèche stage: 2 2 2 2 ... 21 1 2 2 t y s pr pn n nr σ σ = σ + σ + σ + , (4) 2 2 2 21 2 2 t y s pn nr σ σ = σ + σ + . (5 ... then inserted into equations (4) and (5) to provide an estimated variance for yearly means. As ... the variance components based on pre- impact data into equations (4) and (5). Under the hypothesis of ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Auteur(s): Southwell, C., J. Clarke and L.M. Emmerson
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
of longlines in areas defined as average to high risk (levels of Risk 4 or 5)’; this includes ... Method Type III Method 2005 20 2 (1) Sp 4 (19) 3 Sp; 1 A 2006 21 3 (14) Sp 6 (7) 2 Sp; 4 A 2007 ... 10 5 (9) Sp 4 (1) 4 A 2008 20 3 (19) Sp 6 (1) 1 Sp; 5 A 1 (0) Sp 161 Mitigation of seabird ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Auteur(s): Reid, E., B. Sullivan and J. Clark
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Korea. CCAMLR. 1992. Statistical Bulletin, Vol. 4 (1982-1991). CCAMLR, Hobart, Australia: 133 pp ... young chick travelled to continental shelf 1398A M 4 January 1992 1 2 67.2° feeding young chicks only ... January 1992 4 66.9° 63.3° 76 15 67.4° feeding young chicks travelled to ice edge before PIT failed ... growing chick only 1 to 5 km from colony 26 January 1992 1 4 148 none feeding growing chick only 1 to 5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Auteur(s): Kerry, K.R., J.R. Clarke and G.D. Else
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Conservation Measure Conservation Measure 12/VII (1988)
Subarea 48.3 from 4 November 1988 to 20 November 1989 119. The Commission in accordance with ... the Convention: Directed fishing on Champsocephalus gunnari shall be prohibited from 4 November ...
Conservation Measure : 12/VII (1988)
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
CCAMLR Science, Vol. 4 (1997): 19-35 LONG-TERM ... with a mesh size of 4 mm, although comparisons with RMTl catches (330 pm mesh size) indicate that ... in Table 4. Table 4: Krill density estimates for the Elephant Island area froin standardised non ... dataset based on 5 000 permutations are given in Table 4. The analyses of variance were calculated using ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Auteur(s): Siegel, V., W. de la Mare and V. Loeb
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
CCAMLR Science, Vol. 4 (1997): 125-139 PRECAUTIONARY ... , an alternative, more conservative, estimate of 25% is also used in Table 4 to estimate M. hyades i ... diet. Annual consumption of M. h y a d e s i by two species of seal is given in Table 4, together ... in the Scotia Sea was made here by taking the Table 4: Estimated consumption o f M , hyadesi b ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Auteur(s): Rodhouse, P.G
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An index of per capita recruitment
, R3, R4 . . . are the proportions of N that are in the age-l, age-2, age-3, age-4 . . . year classes ... ; M2, M3, Mq . . . the post- recruit mortality rates for age-2, age-3, age-4 ... year classes; and y ... of M, and c for three levels of a (Figure 4). Decreasing c from 1 to 0 increases the negative bias ... : Report of the Seventeenth Meeting of the Scientific Committee (SC-CAMLR-XVII), Annex 4, Appendix D ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
of C. gunnari from 2-3 years old to 3-4 years old, particularly at high fishing mortalities ... of 20-50 tonnes per day. The total catch in the fishery was limited to 4 036 tonnes by a CCAMLR ... lead, i n 1990 the Commission recommended that 'a closed season b e t w e e n 1 April and 4 ... 1990 Hill Cove survey most of the aggregations encountered were composed mainly of 3- and 4-year-old ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Auteur(s): Parkes, G.B
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Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides
fishery operations should be flexible, whilst maintaining 4 the requirement for the acquisition of ... survey. (1) (2) (3) (4) (5) 5 So as to reduce the number of parameters, the specific ... probable range. 4. RECRUITMENT ESTIMATION Replacing (3) in (l) and summing over all ages, we may ... the Dissostichus eleginoides catches south of Chile, from the 1991/ 92 survey. K=0.066 Age 4 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Auteur(s): Zuleta, A.V. and C.A. Moreno