The role of fanning behavior in water exchange by a nest‐guarding benthic fish before spawning
The role of fanning behavior in water exchange by a nest‐guarding benthic fish before spawning
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守巢底栖鱼类产卵前扇动行为在水交换中的作用
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
L. Corkum
中科院分区：
文献类型：
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作者：
B. Meunier;Blake White;L. Corkum
鱼的位移扇动（在产卵前求偶期间扇动）可能是亲代能力的一个指标。扇风可用于通风或传播化学信息。我们使用粒子图像测速技术来可视化和表征雄性 Neogobius melanostomus 求偶时产生的流场。一旦确定了流场的特征，我们就进行了一项实验室实验，以确定尾部和胸部扇动行为是否受到巢穴附近雌性存在的调节。尾部扇动和胸扇扇动之间存在显着差异（F1,11 = 54.696，p < 0.001），交互项，扇动类型 x 距离（F2, 22 = 9.870，p < 0.001）在水进入和离开巢穴时也存在显着差异。巢穴入口附近存在单个雌性对扇动率没有影响。尾部扇动（尾部位于巢入口）引起的离开巢的水速在距离巢开口 5、10 和 15 厘米处分别为 6.0 ± 0.96（平均值 ± SD）、5.6 ± 1.18 和 3.1 ± 1.05 mm s−1。相比之下，在相应距离处，通过胸扇扇动（头部位于巢入口处）进入巢的水的平均速度为-3.9±0.69、-0.2±0.45和-0.1±0.28mm s−1。尾扇扇动将水推出巢穴，胸扇扇动将水吸入巢穴。我们推测这些是机车结构的特殊化，导致水搅拌（胸鳍）和泵送（尾鳍）以驱散气味。
Displacement fanning (fanning during courtship before eggs are deposited) by fish may be an indicator of parental ability. Fanning may be used for ventilation or for the dispersal of chemical messages. We used particle image velocimetry to visualize and characterize flow fields generated by courting male Neogobius melanostomus. Once flow fields were characterized, we conducted a laboratory experiment to determine if caudal and pectoral fanning behavior was modulated by the presence of a female near the nest. There were significant differences between caudal and pectoral fanning (F1,11 = 54.696, p < 0.001) as was the interaction term, fanning type x distance (F2, 22 = 9.870, p < 0.001), on water entering and leaving the nest. The presence of a single female near the nest entrance had no effect on fanning rates. The velocity of water exiting the nest induced by caudal fanning (with the tail at the nest entrance) was 6.0 ± 0.96 (mean ± SD), 5.6 ± 1.18, and 3.1 ± 1.05 mm s−1 at 5, 10, and 15 cm away from the nest opening, respectively. In contrast, the mean velocity of water entering the nest via pectoral fanning (with the head at the nest entrance) was −3.9 ± 0.69, −0.2 ± 0.45 and −0.1 ± 0.28 mm s−1 at the respective distances. Caudal fanning pushes water out of the nest and pectoral fanning pulls water into the nest. We speculate that these are specializations of locomotive structures that lead to water stirring (pectoral fins) and pumping (caudal fin) to disperse odors.
DOI：
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发表时间：
1994-12
期刊：
The Journal of experimental biology
影响因子：
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作者：
M. Weissburg;R. K. Zimmer-Faust
通讯作者：
M. Weissburg;R. K. Zimmer-Faust