trapp_1983_18.7-30.7.pdf (1.786Mb)

Based on the above-mentioned tensions, a recommendation for further research is to examine whether young people who have participated in the TP influence their parents and peers in

In the northem area most of the sonar recordings were identified as herring schools, while in the south they were either herring, mackerel, horse mackerel and even single fish

Fig. shows a map which includes the geographical names which are mentioned in the text. During daytime the herring were mostly distributed in dense schools near

During the period 13–18 November 2009, the TOPAS PS18 parametric sonar was used with the EK60 scientific echo sounder to observe herring in small schools off the northwest coast

By focusing on a relatively short segment along the perceived migration route and the leading schools of the herring, while applying new underwater observation technology,

I n view of the serious decline in the yield of adult Norwegian herring during the late 1950s and early 1960s the Herring Committee of the Inter- national Council for tlie

The procedure was then to pass over the respective schools with the echosounder at a relatively slow speed (3 - 5 knots).. Illustration of horizontal herring school distribution

bioiogical environment and the rnigration behaviour of herring schools in the Norwegian Sea This fieid work aimed to gi ve a synoptic view of herring distribution and rnigration