Star-oddi植入式心率傳感器在龍蝦上的應(yīng)用
Artifcial light at night does not alter heart rate orCaribbean spiny lobsterlocomotor behaviour in(Panulirus argus):insights into light pollution andphysiological disturbance using biologgers
Light pollution is a rapidly growing threat to biodiversity, with many unknown or poorly understood effects on species andecosystems spanning terrestrial and aquatic environments, Relative to other taxa, the effects of artifcial light at night onaquatic invertebrates are poorly understood, despite the abundance and integral signifcance of invertebrates to marine andfreshwater ecosystems. We affxed heart rate and acceleration biologgers to adult Caribbean spiny lobster (Panulirus argus), anecologically, culturally and economically signifcant species in the western Atlantic ocean,to test the effect of artifciallight atnight on this species' physiology and behaviour relative to appropriate controls. The experiment was conducted in a simulatedreef mesocosm in The Bahamas with incandescent lighting used to iluminate it at 1 lux, approximating ight levels ofshoreof urban areas. In the conditions tested here, artifcial light at night was found to have no effect on heart rate or locomotoractivity in p argus. We observed a dissociation between activity and heart rate at both short-term and long-term temporalsca es, Lobsters were more active at niaht and nocturna activity was higher in trials coser to new moon: however, heart ratedid not vary with diel or lunar cycle, There was less than 8% diference between daytime and night time average heart ratedespite the average percentage of time spent active almost tripling in nights versus days, to 19.5% from 7.2%, respectivelyOur fndings suggest P, argus may have some resilience to low levels of light pollution, which warrants further research onaspects of this species' life history, performance and ftness in the,face ofthis potential anthropogenic disturbance.
Key words: heart rate, accelerometer, biologging, spiny lobster, light pollution, stress
光污染對生物多樣性構(gòu)成了迅速增長的威脅，對陸地和水生環(huán)境中的物種和生態(tài)系統(tǒng)產(chǎn)生了許多未知或知之甚少的影響。與其他類群相比，夜間人工光對水生無脊椎動物的影響知之甚少，盡管無脊椎生物對海洋和淡水生態(tài)系統(tǒng)具有豐富和整體意義。我們將心率和加速度生物記錄儀安裝到成年加勒比刺龍蝦(Panulirus argus)上，這是一種在西大西洋具有生態(tài)、文化和經(jīng)濟(jì)意義的物種，以測試夜間人工光照對該物種生理和行為的影響。這項實驗是在巴哈馬的一個模擬珊瑚礁中透鏡中進(jìn)行的，使用白熾燈照明，照明亮度為1勒克斯，接近城市地區(qū)近海的光線水平。在這里測試的條件下，在夜間人工照明被發(fā)現(xiàn)有沒有影響的心率或自發(fā)活動的P.argus。我們觀察到活動和心率在短期和長期的時間尺度之間的解離。龍蝦在夜間更活躍，在接近新月的試驗中夜間活動更高;然而，心率不會隨 DIEL 或月球周期而變化。 白天和夜間的平均心率相差不到8%，盡管夜間活動時間的平均百分比幾乎是白天的三倍，分別從7.2%增至19.5%。我們的研究結(jié)果表明P.可能對低水平的光污染有一定的適應(yīng)性，這需要進(jìn)一步研究該物種的生活史、表現(xiàn)和適應(yīng)性，以應(yīng)對這種潛在的人為干擾。
關(guān)鍵詞：心率，加速度計，生物記錄，刺龍蝦，光污染，應(yīng)激
