|Cuttlefish camouflage: a quantitative study of patterning|
|Shohet, A.; Baddeley, R.; Anderson, J.; Osorio, D. (2007). Cuttlefish camouflage: a quantitative study of patterning. Biol. J. Linn. Soc. 92(2): 335-345. dx.doi.org/10.1111/j.1095-8312.2007.00842.x|
|In: Biological Journal of the Linnean Society. Academic Press: London. ISSN 0024-4066, more|
Turbidity; Vision; Sepia Linnaeus, 1758 [WoRMS]; Marine
To investigate camouflage design, we compared the responses of two species of cuttlefish (Sepia officinalis and Sepia pharaonis) with controlled but naturalistic backgrounds, consisting of mixtures of 1-mm and 9-mm diameter coloured pebbles. Quantitative analysis of image data using methods adapted from functional imaging research found differences in how the two species camouflage themselves. Whereas S. officinalis switches from background resemblance to a disruptive pattern as it moves from a fine to a coarsely patterned background particl, S. pharaonis blends the two types of pattern. We suggest that the differences may arise because S. pharaonis needs to produce camouflage that is effective when viewed over a relatively wide range of distances.