上川岛潮间带软体动物分布和区系研究

对上川岛潮间带软体动物进行了采集调查,共鉴定软体动物172种,分属46科.其中腹足纲25科82种,占总数的47.67%;双壳纲21科90种,占总数的52.33%.分析表明,其区系特点为南海亚热带—热带种和东海-南海亚热带种为主要成分.同历史资料比较,广温广布种明显减少,南海亚热带-热带种获得发展;部分有经济价值的种类已经消失;养殖造成滩涂软体动物物种单一性;外来速生种墨西哥湾扇贝的养殖对滩涂其他软体动物的生态威胁需要进行评估.     

湛江硇洲岛沿岸蟹类动物

本文报道了湛江硇洲岛沿岸的甲壳纲蟹类节肢动物的调查结果，计有蟹类45种,分别隶属于甲壳纲的10科,并根据丰度进行了分析.     

Exhausted philosophy and islands-to-come

Abstract

Drawing on an array of sources, from Deleuze and Guattari’s philosophy (schizoanalysis) through to non-philosophy (cinema, literature), this paper concerns itself with the manifestation of the concepts of hope and despair in utopian thought and continental philosophy and the experience of hopelessness, despair and exhaustion in the contemporary moment. I aim to demonstrate such pressing concerns through a comparison of Japanese philosopher Kojin Karatani and Japanese fiction writer Ryū Murakami with the American science fiction-thriller film directed by Michael Bay, The Island. What is explored in these works is the dialectic of exhaustion and possibility. The focus of the paper is on the fecund moment inhering in the incapacity of thought to think the possibility of utopia. In terms of the philosophy of education, this hones in on the perceived lack of vision of such a possibility among youth and the failure of the university qua institution to proffer an alternative world to its cohort. To demonstrate this, the paper contrasts both ‘affirmative, transcendent, and authoritarian utopias’ (‘ignoble’ utopias as philosopher Gilles Deleuze calls them) and the possibility of ‘immanent, revolutionary, libertarian utopias’—which we shall consider in terms of ‘absolute reterritorialization’.