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首页> 外文期刊>Deep-Sea Research >Cetacean response to environmental and anthropogenic drivers of change: Results of a 25-year distribution study in the northwestern Mediterranean Sea
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Cetacean response to environmental and anthropogenic drivers of change: Results of a 25-year distribution study in the northwestern Mediterranean Sea

机译：鲸类对环境和人为变化驱动因素的反应：地中海西北部25年分布研究的结果

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AbstractMarine mammals are in many situations one of the most studied component of marine ecosystems. Their habitat requirements may be used to detect and describe the impacts of changes in the environmental conditions or in the human-induced pressures affecting the area where they live. The aim of this study is to investigate the distribution patterns of the most frequent cetacean species occurring in the area of the Pelagos Sanctuary (Northwestern Mediterranean Sea) and their potential correlations with both environmental and anthropogenic drivers of changes. Two different types of data were used: sighting data from ship-board surveys and strandings data collected along the Ligurian coast by the Italian Stranding Network, spanning from 1986 to 2014. Sighting data were collected during summer surveys conducted from June to September, between 1990 and 2014 in an area of approximately 29,000km2, within the Pelagos Sanctuary for over 115,000km surveyed under favorable conditions. A total of 4,683 sightings of the five most common cetacean species were collected: 3,305 (70.5%) striped dolphins, 814 (17.3%) fin whales, 169 (3.6%) Risso's dolphins, 347 (7.4%) sperm whales and 48 (1.02%) Cuvier's beaked whales. The species time series of both encounter and stranding rates have been investigated in the light of potential drivers of changes. The results suggest that the area may be suffering from some ecosystem change which is causing the observed changes in the distribution pattern of the five species. Potential disturbance from human activities, namely fishery and maritime traffic, could not be excluded.
机译： 摘要 在许多情况下，海洋哺乳动物是海洋生态系统研究最多的组成部分之一。他们的栖息地要求可用于检测和描述环境条件变化或人为影响他们居住地区的压力所产生的影响。这项研究的目的是调查在Pelagos保护区（西北地中海）地区最常见的鲸类物种的分布模式及其与环境和人为变化驱动因素的潜在关联。使用了两种不同类型的数据：1986年至2014年期间，意大利绞线网络从利古里亚海岸沿利古里亚海沿岸收集的船上勘察数据和搁浅数据。目击数据是在1990年6月至9月进行的夏季勘测期间收集的和2014年在Pelagos保护区内约29,000km 2 内，在有利条件下进行了超过115,000km的勘测。总共发现了5种最常见的鲸类物种的4,683个目击物种：3,305（​​70.5％）条纹海豚，814（17.3％）鳍鲸，169（3.6％）里索海豚，347（7.4％）抹香鲸和48（1.02） ％）居维叶的喙鲸。已根据变化的潜在驱动因素研究了相遇率和搁浅率的物种时间序列。结果表明该地区可能正在遭受某些生态系统变化的影响，这导致观察到的五个物种分布格局的变化。不能排除人类活动的潜在干扰，即渔业和海上交通。

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