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Animal Signal, The loliginid squid has a stripe of iridophores along their…
Animal Signal
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Animal signals in ocean
Ocean is quite different from rain forest where traits of mediums are not similar. Animals in the ocean have developed their own pattern of signal.
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Produce and regulate polarised light patterns for communication purposes using light-reflective structures on their bodies
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As sound travels faster and over a larger distance in water than in air, aquatic animals can use sound signals for long-distance communication while terrestrial animals cannot.
Aquatic mammals such as seals and otters can produce sound using the larynx.
Fish can produce sounds such as boat-whistles, grunts and croaks using their swim bladder or pectoral fin.
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Unlike in the air, the specific light spectral intensity and pheromones transition speed change across water habitats.
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The loliginid squid has a stripe of iridophores along their dorsolateral side, commonly known as the ‘red’ stripe, which reflects polarised light at oblique angles.
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Oceanic species are more likely to use visual signals than species inhabiting the riverine or turbid environment, due to the poor light transmission in turbid areas or in areas with increasing depth and high habitat complexity.
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