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All Categories (81-90 of 90)

  1. Immediate immobilisation of a Minke whale using a grenade harpoon requires striking a restricted target area

    Contributor(s):: Knowles, T. G., Butterworth, A.

    Approximately 1500 Minke whales are killed annually under permit from the International Whaling Commission (IWC). This hunt supports a modest industry in Norway and in Japan; however, the welfare of whales during hunting and killing is such a cause of concern that in 1980 the IWC formed a...

  2. Individual and group behavioural reactions of small delphinids to remote biopsy sampling

    Contributor(s):: Kiszka, J. J., Simon-Bouhet, B., Charlier, F., Pusineri, C., Ridoux, V.

    Biopsy sampling is an effective technique for collecting cetacean skin and blubber samples for various biological studies. However, determining the impact of this research practice is important, as it may vary between sites, species and equipment used. We examined the short-term behavioural...

  3. Observations on the electric lance and the welfare of whales: a critical appraisal

    Contributor(s):: Blackmore, D. K., Madie, P., Barnes, G. R. G.

  4. Serum cortisol in California sea lion pups ( Zalophus californianus californianus )

    Contributor(s):: Pedernera-Romano, C., Aurioles-Gamboa, D., Valdez, R. A., Brousset, D. M., Romano, M. C., Galindo, F.

    Marine ecosystems are exposed to a wide variety of factors that may produce disturbances in their structure and functioning. The Gulf of California supports fisheries, tourism, intensive agriculture, mining, and more recently, shrimp aquaculture. Under such conditions, animals are forced to cope...

  5. Spontaneous activities of captive performing bottlenose dolphins ( Tursiops truncatus )

    Contributor(s):: Galhardo, L., Appleby, M. C., Waran, N. K., Santos, M. W. dos

    Despite the number of dolphins that have been kept in dolphinaria, and the many behavioural studies that have been conducted on captive dolphins, few have focused on welfare. Some behaviours have been described in detail, but insufficient attention has been paid to diurnal variation. Behavioural...

  6. The effects of education programmes on Atlantic bottlenose dolphin ( Tursiops truncatus ) behaviour

    Contributor(s):: Miller, L. J., Mellen, J., Greer, T., Kuczaj, S. A., II

    Atlantic bottlenose dolphins (Tursiops truncatus) are found in zoos and aquaria throughout the world. As the number of facilities with dolphin shows and interaction programmes increases, it becomes more important to understand the effects of such programmes on dolphin behaviour. The present study...

  7. The external locations of harpoon wounds on minke whales taken in antarctic commercial whaling operations, 1978/79 season

    Contributor(s):: Best, P. B.

  8. The response of marine tucuxis ( Sotalia fluviatilis ) towards tourist boats involves avoidance behaviour and a reduction in foraging

    Contributor(s):: Carrera, M. L., Favaro, E. G. P., Souto, A.

    Marine ecotourism has undergone worldwide expansion in recent years, leading to increased concern regarding the impact on the environment. Despite this, however, few studies into the potential effect of tourist boats on dolphin welfare, have been carried out. In order to evaluate the impact of...

  9. The use of electricity to kill minke whales: humane considerations

    Contributor(s):: McLachlan, H.

  10. Welfare aspects of the commercial slaughter of whales

    Contributor(s):: Kestin, S. C.