A simple technique for counting marine debris at sea reveals steep litter gradients between the Straits of Malacca and the Bay of Bengal.
A simple technique for counting marine debris at sea reveals steep litter gradients between the Straits of Malacca and the Bay of Bengal.
复制标题
一种计算海上海洋垃圾的简单技术揭示了马六甲海峡和孟加拉湾之间陡峭的垃圾梯度。
DOI：
10.1016/j.marpolbul.2013.01.016
复制
发表时间：
2013
影响因子：
5.8
通讯作者：
P. Ryan
中科院分区：
文献类型：
--
作者：
P. Ryan
采用了一种基于大小和距离的技术来评估印度洋东北部漂浮海洋废弃物的分布、丰度和组成。马六甲海峡的漂浮物（> 1厘米）密度（578± 219 itemskm −2）比孟加拉湾的海洋沃茨（8.8± 1.4 itemskm − 2）更大，变化更大。海峡中的碎片密度与陆地植被有关，在城市中心附近达到峰值，表明陆地来源占主导地位。在孟加拉湾，17°N以北的碎片密度增加，主要是由于恒河三角洲径流中可能携带的小碎片。孟加拉湾的低密度相对于模型预测可能是由于生物淤积引起的下沉和风力驱动的碎片出口。需要有标准化的数据收集协议来计算漂浮碎片，特别是关于所使用的大小类别，以便利研究之间的比较。
A size and distance-based technique was used to assess the distribution, abundance and composition of floating marine debris in the northeast Indian Ocean. Densities of floating litter (>1cm) were greater and more variable in the Straits of Malacca (578±219itemskm−2) than in oceanic waters of the Bay of Bengal (8.8±1.4itemskm−2). The density of debris in the Straits was correlated with terrestrial vegetation, and peaked close to urban centres, indicating the predominance of land-based sources. In the Bay of Bengal, debris density increased north of 17°N mainly due to small fragments probably carried in run-off from the Ganges Delta. The low densities in the Bay of Bengal relative to model predictions may result from biofouling-induced sinking and wind-driven export of debris items. Standardised data collection protocols are needed for counts of floating debris, particularly as regards the size classes used, to facilitate comparisons among studies.