Whales, seals, fish, and man: proceedings of the by A. Schytte Blix, L. Walløe, Ø. Ulltang

By A. Schytte Blix, L. Walløe, Ø. Ulltang

This quantity outlines the main findings from the Norwegian learn programme on whales and seals in Norwegian waters. a variety of subject matters are lined, together with physiological points, social association, inhabitants dynamics, inventory evaluation and administration. The e-book may be of serious price to scientists and executives, in addition to to individuals of most of the people attracted to environmental concerns.

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Additional resources for Whales, seals, fish, and man: proceedings of the International Symposium on the Biology of Marine Mammals in the North East Atlantic, Tromsø, Norway, 29 November-1 December 1994

Sample text

The structure of these measurement errors is summarized as follows [3,4] (where typos occur in the formula for errors in the angles): Let A be the measured angle, and a the true angle between the sighting line and the track line, and let R and r be the measured and true radial distance from the observer to the whale, respectively. 01) TMZ 1 and A = s i g n ( a ) ( 1 . 98. The hazard probability (eq. (7)) in Ref. [4] was estimated on occurrence/exposure data and positional data for initial sightings.

However, recoveries of 1 year or even older seals might indicate that they also actively migrate to areas not commonly thought to be part of their normal distributional range, and that they might stay in these areas for a while. 6000 80oo 4500 , 3000 . , . , t . 00oo .. ' . ,,), . . z 4500 ' 700o 6000 . 80oo 70oo o 6000 6000 5000 lrJ ~ 6000 .... i 4 500 'l 3000 ...... I 1 500 5000 00oo 1 500 3000 4 5oo 6000 Fig. 3. Recapture sites of harp seals tagged as pups in the West Ice area in 1984 and recaptured outside the tagging area.

12. Oien N. Abundance of the northeastern Atlantic stock of minke whales based on shipboard surveys conducted in July 1989. Rep Int Whal Commn 1991;41:499-511. 13. Schweder T. Transformations of point processes: applications to animal sighting and catch problems, with special emphasis on whales. Dissertation, University of California, Berkeley, CA, USA, 1974 (unpublished). V. S. Blix, L. WallCeand D. Ulltang,editors 27 Point clustering of minke whales in the northeastern Atlantic G r o H a g e n 1 and T o r e S c h w e d e r 2 1Norwegian Computing Center, Blindern, Oslo, Norway; and 2University of Oslo, Blindern, Oslo, Norway A b s t r a c t .

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