Long-term circatidal rhythms of heart rate, gill ventilation, and locomotion in the American horseshoe crab, Limulus polyphemus Linnaeus, 1758 (Arthropoda: Chelicerata: Merostomata: Limulidae)

IF 1.2 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY Journal of Crustacean Biology Pub Date : 2023-11-27 DOI:10.1093/jcbiol/ruad069
Rebecca L Anderson, Winsor H Watson, Christopher C Chabot
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Abstract

While several marine species exhibit biological rhythms of heart rate, gill ventilation, or locomotion, the relationship between these three measures in any species remains unexplored. The American horseshoe crab, Limulus polyphemusLinnaeus, 1758, expresses circalunidian locomotor rhythms and circadian eye sensitivity rhythms, but it is not clear if either heart and ventilation rates are controlled on a circadian, or circatidal basis or the nature of the relationship between these three measures. We aimed to determine the extent to which the heart and ventilation rates of L. polyphemus are coordinated with its endogenous rhythms of locomotion. We recorded rhythmic beating of the heart and movements of the gill plates in freely moving horseshoe crabs. Most individuals exhibited robust circatidal rhythms of locomotion, heart rate, and ventilation that were highly correlated with each other over three weeks of continuous recording. These results are the first showing long-term rhythms of all three measures in any marine species and suggest that heart rate and ventilation rhythms are coordinated in L. polyphemus, both with each other, and with locomotion, and thus are all modulated on a tidal basis.
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1758年美洲马蹄蟹的心率、鳃通气和运动的长期周期节律(节肢动物目:螯足目:刺足目:鲎科)
虽然一些海洋物种表现出心率、鳃通气或运动的生物节律,但这三种措施在任何物种中的关系仍未被探索。美国马蹄蟹limus polyphemusLinnaeus, 1758,表达了昼夜运动节律和昼夜眼敏感节律,但尚不清楚心脏和通气率是由昼夜节律控制的,还是以昼夜节律为基础控制的,或者这三者之间关系的本质。我们的目的是确定L. polyphemus的心脏和通气速率与其内源性运动节律的协调程度。我们记录了自由活动的马蹄蟹心脏有节奏的跳动和鳃板的运动。在三周的连续记录中,大多数个体表现出强烈的运动、心率和通气的周期节律,这些节律彼此高度相关。这些结果是首次在任何海洋物种中显示所有三种测量的长期节律,并表明L. polyphemus的心率和通气节律相互协调,并与运动协调,因此都以潮汐为基础进行调节。
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来源期刊
Journal of Crustacean Biology
Journal of Crustacean Biology 生物-海洋与淡水生物学
CiteScore
2.10
自引率
9.10%
发文量
66
审稿时长
6-12 weeks
期刊介绍: The Journal of Crustacean Biology is the official journal of The Crustacean Society, publishing peer-reviewed research on all aspects of crustacean biology and other marine arthropods. Papers are published in English only, but abstracts or summaries in French, German, Portuguese, or Spanish may be added when appropriate.
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