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Effects of oceanographic factors on spatial distribution of Whale Shark in Cendrawasih Bay National Park, West Papua

机译:海洋摄影因素对亨格拉瓦斯湾国家公园鲸鲨空间分布的影响

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Whale sharks are a leading species in Cendrawasih Bay due to its benign nature and its regular appearance. Recently, whale sharks are vulnerable to scarcity and even extinction. One of the efforts to maintain the existence of the whale shark population is by knowing its spatial distribution. This study aims to analyze how the oceanographic factors affect the spatial distribution of whale sharks in Cendrawasih Bay National Park. The method used in this research is descriptive with the quantitative approach using the Generalized Additive Model (GAM) analysis. The data consisted of the whale shark monitoring data in TNTC taken by WWF-Indonesia, and image data of sea surface temperature (SST) and chlorophyll-a concentration of Aqua-MODIS, and also sea surface current from Aviso. Analyses were conducted for the period of January 2012 until March 2015. The GAM result indicated that sea surface current was better than the other environment (SST and chlorophyll-a concentration) as an oceanographic predictor of whale shark appearance. High probabilities of the whale shark's to appear on the surface were observed in sea surface current velocities between 0.30-0.60 m/s, for SST ranged from 30.50-31.80 °C, and for chlorophyll-a concentration ranged from 0.20-0.40 mg/m~3.
机译:由于其良性性质及其定期外观,鲸鲨是Cendrawasih海湾的领先物种。最近,鲸鲨易受缺乏甚至灭绝的伤害。保持鲸鲨人群存在的努力是通过了解其空间分布。本研究旨在分析海洋摄影因素如何影响亨拉瓦斯湾国家公园的鲸鲨的空间分布。本研究中使用的方法具有使用广义添加剂模型(GAM)分析的定量方法的描述性。这些数据包括由WWF-Indonesia的TNTC中的鲸鲨监测数据,以及海表面温度(SST)和叶绿素的图像数据和Aqua-Modis的浓度,以及来自Aviso的海面电流。 2012年1月至2015年3月进行了分析。GAM结果表明,海面电流优于其他环境(SST和叶绿素-A浓度),作为鲸鲨外观的海洋预测因子。在0.30-0.60m / s的海面电流速度下观察到表面上的鲸鱼鲨的高概率,SST为30.50-31.80℃,叶绿素-A浓度范围为0.20-0.40 mg / m 〜3。

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