Full Description

"We investigated clicking sounds produced during feeding strikes in H. zosterae and H. erectus."

"H. zosterae feeding clicks ranged from 5 to 20 msec in duration (including tank artifacts). Mean peak frequencies of feeding clicks from six H. zosterae (30 clicks per individual) ranged from 2.65 kHz (±1 SE = 0.078) to 3.43 kHz (± 0.066). Peak frequency declined significantly as H. zosterae body size increased (Figure 4: r2 = 0.245, p < 0.001)."

"H. zosterae frequently clicked when placed into a new aquarium. During courtship, competing H. zosterae males often clicked while snapping at each other. Snaps included a head motion similar to the feeding strike. Both H. zosterae and H. erectus produced a series of clicks when held out of water."

"We examined these hypotheses in two species of seahorses, Hippocampus erectus and H. zosterae, which both produce sound during feeding strikes."

"Both H. zosterae and H. erectus produced similar clicks in other situations."

"The ecological and behavioral implications of the seahorse feeding click are currently unknown"

Observation Environment Quotes

"Seahorses were maintained in artificial seawater (Instant Ocean, specific gravity 1.023) in the laboratory in 38 liter (50 x 30 x 25 cm) or 70 liter (60 x 38 x 30 cm) aquaria, at 25 °C and a 13L:11D photoperiod."

Behaviour Description Quotes

"Both H. zosterae and H. erectus produced a series of clicks when held out of water."

"H. zosterae feeding clicks ranged from 5 to 20 msec in duration (including tank artifacts).' 'Both H. zosterae and H. erectus produced similar clicks in other situations. H. zosterae frequently clicked when placed into a new aquarium. During courtship, competing H. zosterae males often clicked while snapping at each other. Snaps included a head motion similar to the feeding strike."

Sound Name Quotes

"We investigated clicking sounds produced during feeding strikes in H. zosterae and H. erectus."

Full Description

"We investigated clicking sounds produced during feeding strikes in H. zosterae and H. erectus."

"Analysis of high-speed video and synchronous sound recordings of H. erectus indicate that the feeding click begins within 1-2 msec of the onset of the rapid feeding strike (4 msec mean duration)."

"For the considerably larger H. erectus, lower peak frequencies (1.96-2.37 kHz) were observed for four clicks produced by one individual."

"Both H. zosterae and H. erectus produced a series of clicks when held out of water."

"We examined these hypotheses in two species of seahorses, Hippocampus erectus and H. zosterae, which both produce sound during feeding strikes."

"Both H. zosterae and H. erectus produced similar clicks in other situations."

"The ecological and behavioral implications of the seahorse feeding click are currently unknown"

Observation Environment Quotes

"Seahorses were maintained in artificial seawater (Instant Ocean, specific gravity 1.023) in the laboratory in 38 liter (50 x 30 x 25 cm) or 70 liter (60 x 38 x 30 cm) aquaria, at 25 °C and a 13L:11D photoperiod."

Behaviour Description Quotes

"Both H. zosterae and H. erectus produced a series of clicks when held out of water."

"Analysis of high-speed video and synchronous sound recordings of H. erectus indicate that the feeding click begins within 1-2 msec of the onset of the rapid feeding strike (4 msec mean duration)."

Sound Name Quotes

"We investigated clicking sounds produced during feeding strikes in H. zosterae and H. erectus."