Abstract:
:The illumination level at which the pike (Esox lucius) eats most Leucaspius delineatus was compared to that at which the school of Leucaspius disperses.The pike easts Leucaspius predominantly when there is little light (50-75% of its entire prey at less than 1 Lux).The school of Leucaspius gradually disperses at less than 1 Lux.A comparison of the results shows that by and large the pike captures Leucaspius at illumination levels at which the school of Leucaspius is no longer completely unified.As both the ability of the pike to catch prey and of Leucaspius to form a school depend on the optic capabilities of the animals it can be supposed that the predator is optically superior to its prey at low illumination levels and profits from this advantage when catching its prey.
journal_name
Oecologiajournal_title
Oecologiaauthors
Dobler Edoi
10.1007/BF00345687subject
Has Abstractpub_date
1977-03-01 00:00:00pages
93-96issue
1eissn
0029-8549issn
1432-1939pii
10.1007/BF00345687journal_volume
27pub_type
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