Population status of small cetaceans off Aragua, Central Coast of Venezuela 2009

Original provider: Jaime Bolaños-Jiménez Dataset credits: Jaime Bolaños-Jiménez Abstract: Since 2001, the non governmental organization Sea Vida has been promoting responsible dolphin watching in the State of Aragua, on the basis of previous research efforts by the Venezuelan Ministry of Environment and Sea Vida. Attempts have been made to gather baseline information on the bio-ecological and population aspects of cetaceans in the region. Opportunistic and systematic surveys have confirmed the presence of the Atlantic spotted (<i>Stenella frontalis</i>) and bottlenose (<i>Tursiops truncatus</i>) dolphins. Encounter rate with dolphin groups is about 70%. Preliminary results indicate that at least a proportion of the population is resident to the area, with recaptures ranging from a few days to at least 12 years.原始提供方：海梅·博利亚诺斯-希门尼斯（Jaime Bolaños-Jiménez） 数据集致谢：海梅·博利亚诺斯-希门尼斯（Jaime Bolaños-Jiménez） 摘要： 自2001年起，非政府组织海洋生命（Sea Vida）便依托委内瑞拉环境部与海洋生命的前期研究成果，在阿拉瓜州推广负责任的海豚观赏活动。研究团队已尝试收集该区域鲸类的生物生态学与种群相关基线信息。通过机会性调查与系统性调查，已确认该区域存在大西洋斑海豚（*Stenella frontalis*）与宽吻海豚（*Tursiops truncatus*）。海豚群偶遇率约为70%。初步研究结果显示，该区域至少有一部分种群为定居种群，重捕间隔从数日至至少12年不等。