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marine (27) 27
ane (21) 21
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ase (4) 4
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1997, ICES CM (International Council for the Exploration of the Sea. Theme Session on the Catching Performance of Fishing Gears Used in Surveys), Volume 1997/W:21., 7, [3]
When the stock of Norwegian spring-spawning herring is distributed in the Norwegian Sea in summertime, pelagic trawl sampling may be rather challenging because... 
Norwegian Sea | trawl nets | Clupea harengus | ANE | length | gear selectivity | catchability | marine | avoidance reactions | size distribution
Book
1991, 1991/B:36., Volume 1991/B:36., 9, [4]
The accuracy of geometric measurements of schools, using horizontal guided single-beam or multi-beam sonar, is simulated. For both types of sonars, the... 
marine fish | geometry | fish detection | sonar | schooling behaviour
Book
1990, 1990/B:40., Volume 1990/B:40., 21, [12]
The packing density and external shape of herring, saithe and sprat schools in the North Sea and along the Norwegian coast are measured acoustically. The... 
Clupeidae | sprat | Norway | ANE | Sprattus sprattus | North Sea | schooling behaviour | marine | Pollachius virens
Book
1988, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1988/B:27., 10 pages.
The swimming behaviour and horizontal dimensions of mackerel schools have been quantified by use of a multibeam, true motion sonar during purse seining in the... 
swimming | biomass | avoidance reactions mackerel fisheries | Scomber scombrus | purse seining | escapement | horizontal distribution | fish detection | sonar | schooling behaviour
Book
1987, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1987/B:10., 10 pages.
Sonar observations of herring schools in the North Sea and along the Norwegian Coast reveal a rather constant swimming behaviour of individual schools in... 
position fixing | purse seining | Clupea harengus | ANE | North Sea | sonar | clupeoid fisheries | schooling behaviour | marine
Book
1998, ICES CM (International Council for the Exploration of the Sea. Theme Session on Variation in the Pattern of Fish Aggregation: Measurement and Analysis at Different Spatial and Temporal Scales and Implications), Volume 1998/J:17., 6, [8]
The distribution and aggregation characteristics of sardinella in Angola from 1985-1996 are analyzed by comparing the distribution of acoustic recordings from... 
efcho surveys | Sardinella maderensis | biomass | ASE | Angola | organism aggregations | Sardinella aurita | seasonal variations | marine | geographical distribution
Book
1996, 1996/B:22., Volume 1996/B:22., 10
When migrating in the Norwegian Sea in spring and summertime, the Norwegian spring spawning herring will be surveyed by vessels from four nations. Because the... 
Norwegian Sea | Clupea harengus | abundance | ANE | spawning migrations | sonar | calibration | marine | geographical distribution
Book
1996, 1996/B:24., Volume 1996/B:24., 23
Technology for efficient size-selection of mackerel and saithe in purse seines has been developed. A critical constraint for application of the technology is... 
Scomber scombrus | escapement | survival | purse seines | Pollachius virens
Book
1994, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1994/B:28., 12
In purse seine fisheries, there may exist potentials for size selection because of some of the fish in the catch are less than the legal size, and because... 
mesh selectivity | gear research | Scomber scombrus | Norway | escapement | survival | ANE | North Sea | purse seines | marine | size distribution | Pollachius virens
Book
1994, 1994/Mini: 9., Volume 1994/Mini: 9., 15, [6]
Information on migration pattern and swimming behaviour of pelagic fish schools in the vicinity of steaming survey vessels has been collected by a multi-beam... 
swimming | migrations | Clupea harengus | Mallotus villosus | ANE | North Sea | velocity | multibeam sonar | marine | echo surveys | avoidance reactions
Book
1993, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1993/B:17., 11
As a help in stock assessment of pelagic, schooling fish a software for detection of schools and quantification of their size and swimming behaviour by a high... 
swimming | pelagic environment | computer programs | identification | marine fish | fish detection | sonar | schooling behaviour | stock assessment
Book
1993, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1993/B:16., 10, [3]
The shape and horizontal extent of herring schools in the North Sea have been mapped by a naval sonar (SIMRAD SA 950) with narrow horizontal beam width. The... 
biomass | population density | echosounders | Clupea harengus | ANE | North Sea | sonar | schooling behaviour | marine
Book
1993, Fisken og Havet, Volume 1993/8., 21
During the last few years, development of systems for selection of fish size in purse seines has become an important task for gear research. In the mackerel... 
gear research | purse seines | trawl nets | size distribution | survival | Scombridae
Book
1993, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1993/B:21., 8, [5]
On four fish abundance estimation surveys in the Barents sea, january-february 1993, the acoustic records were judged by two independent teams. We have... 
echo integrators | Barents Sea | marine fish | fishery surveys | PNE | abundance | marine | echo surveys
Book
1990, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1990/B:38., 22
Swimming behaviour of schooling herring, mackerel and sprat, when approached by a survey vessel, was observed by aid of a true motion sonar. Observations were... 
Clupeidae | sprat | swimming | ANE | Sprattus sprattus | North Sea | Scombridae maquereaux | schooling behaviour | marine | trawling | echo surveys | Scombridae
Book
1988, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1988/B:26., 16
The connections between reflected echo strategy and dimensions of fatty herring schools were studied by a combination of multibeam sonar and a calibrated echo... 
echo integrators | biomass | sound measurement | purse seining | Clupea harengus | target strength | schooling behaviour | sonar detection | echo surveys
Book
1988, ICES CM (International Council for the Exploration of the Sea. Fish Capture Committee), Volume 1988/B:25., 12 pages.
Theoretical considerations on material requirements and sinking speed by use of different mesh size and lead weight in purse seines are outlined. 
mesh selectivity | escapement | sinking | purse seines | catchability
Book
2000, ICES CM (International Council for the Exploration of the Sea. Theme Session on the Incorporation of External Factors in Marine Resource Surveys), Volume 2000/K:10., 1
Survey vessel avoidance reactions and near-surface schooling of Sardinella were investigated off the coast of Angola. Experiments were conducted during 1997... 
Sardinella maderensis | ASE | Angola | fishery surveys | research vessels | fish schools | Sardinella aurita | schooling behaviour | marine | avoidance reactions
Book
1999, Fisken og havet, Volume 1999 (6), 10
Lie management A/S has developed an improved arrangement of purse rings. the concept consits of three parts; a wing ring, an intermediate link and a hook with... 
purse seines | fishing gear | commercial fishing | testing evaluation
Book
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