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首页> 外文期刊>Ocean & coastal management >Perceptions of environmental change over more than six decades in two groups of people interacting with the environment of Port Phillip Bay, Australia
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Perceptions of environmental change over more than six decades in two groups of people interacting with the environment of Port Phillip Bay, Australia

机译：两组与澳大利亚菲利普港湾环境互动的人们对六十多年来环境变化的看法

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Assessment of environmental change over long periods of time is often impossible due to the absence of long-term quantitative data. Because it is not possible to collect such data retrospectively, qualitative data may provide some understanding of variation in environmental parameters over large temporal scales. The potential of qualitative data to yield valid and informative conclusions hinges on the extent of consistency in those data. The present study explored the potential for semi-structured interviews to serve as a data source for the retrospective assessment of environmental change. Two groups of people (anglers and divers) interacting with the environment of Port Phillip Bay, Australia, were questioned about their perceptions of change in that environment. Accounts covered more than six decades and several patterns emerged. Commercial dredging for scallop (Pecten fumatus) was assumed to have had a major negative impact on many taxa. Abundance of Snapper (Pagrus auratus) increased after dredging ceased in the mid-1990s though size and abundance were reduced relative to the early 1960s. The abundance of Flathead spp. (Neoplathycephalus richardsoni, Plathycephalus laevigatus & Plathycephalus arenarius) declined, and the spread of an introduced seastar (Asterias amurensis) was implicated in this decline. Importantly, the overall condition of Port Phillip Bay appears to have deteriorated on a large scale. Many species of fish and invertebrates purportedly disappeared or declined over the course of six decades. Similarly, a substantial reduction of macroalgae was noted. This preliminary study underscores the potential of qualitative data to assess environmental conditions in the past and illustrates the capacity for interdisciplinary research to aid in management and conservation.
机译：由于缺乏长期的定量数据，通常无法长时间评估环境变化。由于不可能回顾性地收集此类数据，因此定性数据可以提供对较大时间尺度上环境参数变化的某种理解。定性数据产生有效和有益结论的潜力取决于这些数据的一致性程度。本研究探索了半结构化访谈的潜力，可作为环境变化回顾性评估的数据来源。询问了与澳大利亚菲利普湾港环境互动的两类人（钓鱼者和潜水者）对他们对那种环境变化的看法。帐户涵盖了超过六十年的时间，并且出现了几种模式。扇贝（Pecten fumatus）的商业疏was被认为对许多生物群具有重大的负面影响。在1990年代中期，挖泥停止后，鲷鱼的丰度增加了，尽管相对于1960年代初，其大小和丰度有所降低。 Flathead spp的丰富。 （Neoplathycephalus richardsoni，Plathycephalus laevigatus和Plathycephalus arenarius）下降，并且这种下降与引进的海星（Asterias amurensis）的传播有关。重要的是，菲利普港湾的总体状况似乎已大规模恶化。据称，六十年之内，许多鱼类和无脊椎动物消失或减少了。同样，注意到大型藻类大量减少。这项初步研究强调了定性数据过去评估环境条件的潜力，并说明了跨学科研究有助于管理和保护的能力。

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    《Ocean & coastal management》 |2011年第1期|p.93-99|共7页
  • 作者

    Christian A. Jung; Peter D. Dwyer; Monica Minnegal; Stephen E. Swearer;

  • 作者单位

    Department of Zoology, University of Melbourne, Parkville, VIC 3010, Australia;

    School of Philosophy, Anthropology and Social Inquiry, University of Melbourne, Parkville, VIC 3010, Australia;

    School of Philosophy, Anthropology and Social Inquiry, University of Melbourne, Parkville, VIC 3010, Australia;

    Department of Zoology, University of Melbourne, Parkville, VIC 3010, Australia;

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