Now showing items 1-10 of 21
Using vessel acoustics to detect diving patterns of krill foraging predators automatically: development of a novel method for quantifying impact of krill fishing on seals and penguins
(;WG-EMM-15/25, Research report, 2015-06-20)
The aim of this work was to assess the possibilities of automatically generating a dataset of dive behaviour of air-breathing predators, based on acoustic data from a monitoring survey and from commercial krill fishing ...
Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
(;WG-EMM-15/28, Research report, 2015)
We present a novel index of Antarctic krill biomass in CCAMLR subareas 48.1 to 48.4, based on data from scientific nets and covering the years between 2000 and 2011. The annual biomass variation was significant (CV=73%) ...
Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015
(;WG-EMM-15/54, Research report, 2015-06-22)
Annual acoustic trawl surveys for krill monitoring have been carried out by the Institute of Marine research, Norway near the South Orkney Islands since 2011. The survey has been conducted early in the fishing season ...
Employing a trawl independent multi-compartment towing rig to study selectivity of crustaceans in trawls
(Conference object, 2016-09-22)
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella)
(Journal article; Peer reviewed, 2014-02-21)
The use of biologging instruments has greatly improved our understanding of the behaviour, physiology and ecology of free-ranging marine mammals. However, handling wild animals and attaching instruments to streamlined ...
Quantifying the Escape Mortality of Trawl Caught Antarctic Krill (Euphausia superba)
(Journal article; Peer reviewed, 2016-09-13)
Antarctic krill (Euphausia superba) is an abundant fishery resource, the harvest levels of which are expected to increase. However, many of the length classes of krill can escape through commonly used commercial trawl mesh ...
Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
(CCAMLR;WG-EMM-16/21, Conference object, 2016-06-15)
This paper is a revised version of WG-EMM-15/28, which uses a question and answer format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 to 48.4, and current knowledge about ...
At-Sea Distribution and Prey Selection of Antarctic Petrels and Commercial Krill Fisheries
(Journal article; Peer reviewed, 2016-08-17)
Commercial fisheries may impact marine ecosystems and affect populations of predators like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia superba that is projected to increase ...
Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2016
(Rapport fra havforskningen;20-2016, Research report, 2016)
Small scaled Russian exploratory fishing for krill in the Southern Ocean began in the late 1960s. During the 1970s the fisheries increased and annual catches of krill have exhibited a number of fluctuations since the ...
Assessment of mortality of Antarctic krill (Euphausia superba) escaping from a trawl
(Conference object, 2016)