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Whales: Trophic modelling of the Ross Sea
estimate consumption of cetaceans in method 4, we used the relation between animal weight and daily ... kg/d or WW prey, and W is the animal wet weight in kg. For “other marine mammals”, which we apply to ... . Method 2. Banse & Mosher (1980) relate production to animal biomass as: P/B=12.9 ·Ms -0.33 where Ms is ... the animal weight expressed as an energy equivalent (kcal), and P/B is the annual value (y-1). Fish ...
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Fishery Report 2017: Champsocephalus gunnari Heard Island (Division 58.5.2)
stock is determined at the end of each year 30 Nov–30 Nov Fishery information Upper bound to annual ... Increments in year 365 Years to project stock in simulation 2 Reasonable upper bound for annual F 5.0 ... (from 1 December 2014 to 30 November 2015). Fishery Report 2017: Champsocephalus gunnari ... years. Size at first maturity for females is 26.5 cm and for males is 28.5 cm total length. Reported ...
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SC-CAMLR-SSP/5 – Part I, 1988
inconsistency between the model and the data: typical swarm sizes and densities, together with mean catches per ... model as characterised in Figure 1, together with the rationale underlying that particular ... between, say, latitudes 60 0 S and 70 0 S spanning 20° of longitude. Clearly the simplest assumption to ... = U[1 O/-V;;;, 20/"~] n miles The basis for this choice is to be found in Butterworth and Miller ...
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Informe de pesquería: Dissostichus eleginoides en la ZEE francesa de Isla Crozet (Subárea 58.6)
a la O11. Los párrafos O19 y O20 y las tablas O5 y O6 contienen los datos para 2000/01. Los datos ... effects and random stratum-by-year effects. CCAMLR Science, 11: 59–80. Williams, R., G.N. Tuck, A.J ...
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Whale depredation – Data collection guidelines
based on ten years of experience around the islands of Kerguelen and Crozet (Southern Indian Ocean ... integrated) bottom longlines. The fishery has had 100% observer coverage for the last 15 years. Data on ... toothfish in this region. In this fishery seven vessels operate all year round using only automatic (weight ... time arrival 00:30 00:20 photos yes / no yes comment good series of tail stay a bit far ... ................................................................................................................ 20 2. PHOTO-IDENTIFICATION ... efforts. It is based on ten years of experience around the islands of Kerguelen and Crozet (Southern ... the last 15 years. Data on interactions with marine mammals has been collected for 60,000 fishing ...
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Scientific Abstracts 1997
previous years but the amount for wandering albatrosses was halved compared to last year. Neverthe ... years suggest that in 1986 seabird diet and reproductive performance was indicative of a year of good ... for many years, as was the proportion of these which were uncut. CCAMLR needs to take further steps ... years. Many smaller types of debris are likely to have a short residence time on any beach in the South ...
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Field Identification Guide to Heard Island and McDonald Islands Benthic Invertebrates
help further our understanding, invertebrate surveys over the past seven years have now revealed ... seastars together, all sponges together etc. or maybe right down to species level if time allows (i.e ... allow for the dilution of the solution by the water in the body of the animal. Some phyla are damaged ... bar in the photo (i.e. ruler) as it’s important that we can judge the size of the animal in frame ...
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Field Identification Guide to Heard Island and McDonald Island Benthic Invertebrates
help further our understanding, invertebrate surveys over the past seven years have now revealed ... seastars together, all sponges together etc. or maybe right down to species level if time allows (i.e ... allow for the dilution of the solution by the water in the body of the animal. Some phyla are damaged ... bar in the photo (i.e. ruler) as it’s important that we can judge the size of the animal in frame ...
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Scientific Abstracts 2005
species decreased from last year, and were the lowest average weights seen over nine years. The diet of ... than three consecutive years (ranging from 5 to 16 years), these are: Cape Shirreff (Livingston ... annual report. As in previous years, more items of fishing gear (mostly longlining gear) were found in ... debris, though again the total quantity is significantly down on previous years. The amount of debris ...
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Scientific Abstracts 1995–1996
. Average age of first breeding has decreased by about two years over the last 20 years, for both sexes ... only 20% of values 15 years ago and adult survival has decreased by about 4% per annum since 1987 ... . South Georgia albatross populations are unlikely to recover within the next 10 to 20 years and are ... . 30 (11): 707-712, 1995 (English). A study conducted at South Georgia in 1988/89 indicated that ...
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