How Should We Connect the Freezer and Field? －Utilization of carcasses and Conservation of the Red-crowned Crane in Kushiro Zoo－

Abstract

　 Several activations and researches to conserve the Red-crowned Crane have been performed in Kushiro from before the zoo establishment. In recent years, the increase of the numbers of housing crane, the stored carcasses are also increasing. How should we do that in order to avoid the carcasses in garbage or manure in the freezer? Huge data of the crane following from the past is reflecting the transitions of their habitats and population, and can contribute to keeping in captive and conservation in the wild. Activities of education, exhibition and/or researches with the samples in cooperation with universities and the other organizations have been conducted, it is still insufficient. For the further use, management of the data and sample, rules, and appropriate storage facilities are required. On the other hand, about 70% of the cranes are housed by some sort of accidents, about 60% are housed in dead, and most of the rest are in the dying. Although an increase number to survive by improving the treatment technology, there is the limit. Also, the housing area also expanded with the spread of the cranes and the factors in each region is different. Therefore, it is necessary to seek ways to reduce the housing cranes to predict and/or prevent the accidents by the case analysis. Moreover, these circumstances are not well known. Thus, there is need for the public information and dissemination using various things such as carcasses, rescued individuals, specimens and data.