Changes in temperature, pH, and salinity affect the sheltering responses of Caribbean spiny lobsters to chemosensory cues
Changes in temperature, pH, and salinity affect the sheltering responses of Caribbean spiny lobsters to chemosensory cues
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温度、pH 值和盐度的变化影响加勒比大龙虾对化学感应信号的庇护反应
DOI：
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发表时间：
2019
影响因子：
4.6
通讯作者：
Donald C. Behringer
中科院分区：
文献类型：
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作者：
Erica P. Ross;Donald C. Behringer
佛罗里达湾拥有浅泥滩网络，这些浅泥滩构成了循环障碍，形成了经常遭受极端温度和盐度影响的小盆地。佛罗里达湾也是加勒比大螯虾幼体的重要栖息地。虽然我们对环境变化对龙虾生存、生长和运动的影响的了解不断加深，但对其化学感应能力的影响尚未得到研究。龙虾的许多生物和生态活动严重依赖化学信号，在这里，我们报告了温度 (32°C)、盐度 (45ppt) 和 pH (7.65pH) 等极端环境事件对乌鳢社会行为和庇护偏好的影响。在正常情况下，大龙虾利用同种动物的化学线索来识别合适的庇护所，而石蟹和患病个体的化学线索则用来确定要避开的庇护所。在所有改变的条件下，龙虾都失去了与同种动物聚集并避开石蟹和患病同种动物的能力。因此，季节性极端事件和未来潜在的气候变化条件会改变乌鳢化学感应驱动的行为，并可能因庇护所选择或其他行为受损而导致存活率下降。
Florida Bay is home to a network of shallow mud-banks which act as barriers to circulation creating small basins that are often subject to extremes in temperature and salinity. Florida bay is also important juvenile habitat for the Caribbean spiny lobster Panulirus argus. While our understanding of the effect of environmental changes on the survival, growth, and movement of spiny lobsters is growing, the effect on their chemosensory abilities has not yet been investigated. Lobsters rely heavily on chemical cues for many biological and ecological activities, and here we report on the effect of extreme environmental events in temperature (32 °C), salinity (45ppt), and pH (7.65 pH) on social behavior and sheltering preference in P. argus. Under normal conditions, chemical cues from conspecifics are used by spiny lobsters to identify suitable shelter and cues from stone crabs and diseased individuals are used to determine shelters to be avoided. In all altered conditions, lobsters lost the ability to aggregate with conspecifics and avoid stone crabs and diseased conspecifics. Thus, seasonal extreme events, and potentially future climate change conditions, alter the chemosensory-driven behavior of P. argus and may result in decreased survivorship due to impaired shelter selection or other behaviors.