# 槍蝦行為模式論文整理...
## references
### [1. The acoustics of the snapping shrimp Synalpheus parneomeris in Kaneohe Bay. ](https://sci-hub.se/10.1121/1.423234)
Peak-to-peak source levels varied from 183 to 189 dB re: 1 μPa. The acoustic power produced by a typical snap was calculated to be about 3 W. A typical spectrum of a click had a low-frequency peak between 2 and 5 kHz and energy extending out to 200 kHz. The spectrum of a click is very broad with only a 20-dB difference between the peak and minimum amplitudes across 200 kHz. A physical model of the snapping mechanism is used to estimate the velocity, acceleration, and force produced by a shrimp closing its claws.

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### [2. Aspects of the Aggressive and Sexual Behaviour of Alpheus heterochaelis Say](https://sci-hub.se/10.1080/10236247509378498)

* 同體型下，公的槍蝦螯比母的大，但母的身體比較大(carrying eggs)


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### [3. Snapping shrimp sound production patterns on Caribbean coral reefs : relationships with celestial cycles and environmental variables](https://www2.whoi.edu/site/amooney/wp-content/uploads/sites/31/2018/06/Lillis_Mooney_2018_CR.pdf)


晨昏時間一樣是槍蝦發聲頻率較高的時間，但日間較夜間有顯著的高。
* 時間區段分法:
* (dawn = sunrise ± 1.5 h; midday = noon ± 1.5 h;
dusk = sunset ± 1.5 h; midnight = midnight ± 1.5 h)



* 新月的時候，槍蝦的snapping rate 最高(尤其是晨昏時段)；滿月時最小。與月光的光度呈現顯著負相關。並且與月亮公轉週期有同樣的週期性。

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### [4. The behavior and ecology of snapping shrimp Crustacea: Alpheus heterochelis and Alpheus normanni](https://www.researchgate.net/publication/284543823_The_behavior_and_ecology_of_snapping_shrimp_Crustacea_Alpheus_heterochelis_and_Alpheus_normanni)
* 槍蝦在晚上時會離開洞穴去找食物(因此會發出聲音)
* 當螯迅速的合起來時會有snap sound. 有一個原因可能是為了保護自己的洞穴，而驅逐敵人(但機制不明)


* 當兩隻同性槍蝦爭地盤時:在第8步驟會製造出聲音。

* 酷東西。

* 女生比較常在晚上出來(多肉的女生表現比較少夜行性，不多肉的還好，但差異不明顯????)

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### [5. Monitoring of shallow sea environment by using snapping shrimps](https://sci-hub.se/10.2166/wst.2002.0772)


* 若海水缺氧，會導致pulse counts有顯著的降低(海中的硫化物也可能是影響因子之一)
* pulse counts 與溫度成指數型正相關
* (潮汐的漲退是否跟溶氧量有關?潮境公園附近應無明顯的汙染源，故應無工業廢水、家庭廢水導致優養化、海洋酸化、藻華現象等問題)
* 結論跟我們有夠像ww

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### [6. Sound Production in the Snapping Shrimps Alpheus (Crangon) and Synalpheus](https://sci-hub.se/10.2307/1539406)


* 大螯用來捕食，小螯用來拿東西


* 沒寫什麼，就晚上比白天大聲，最明顯的時候是在日出前跟日落後的那段時間。

* 不知道kc表示什麼(雖然看起來很像kHz)
* 每個地方的槍蝦聲音頻譜都不一樣，取決於該地的主導物種及棲息環境(潮境公園珊瑚礁底的主導物種是?)

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### [7. Snapping Shrimp Sound Measured Under Laboratory Conditions](https://www.researchgate.net/publication/243750021_Snapping_Shrimp_Sound_Measured_Under_Laboratory_Conditions)

研究結論發現三種槍蝦的發聲波型相似，但頻譜不同。

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### [8. Temporal, geographic, and density variations in the acoustic activity of snapping shrimp](https://asa.scitation.org/doi/abs/10.1121/1.4787054)


槍蝦在黃昏時活動力較高