Parasitism, oddity and the mechanism of shoal choice

I. Barber*, L. C. Downey, V. A. Braithwaite

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

56 Dyfyniadau (Scopus)

Crynodeb

When choosing between shoals differing in Schistocephalus solidus infection status, uninfected test sticklebacks Gasterosteus aculeatus showed a preference for joining uninfected conspecifics when shoal sizes were equal, but reversed this preference when the relative size of the infected shoal was increased by a factor of 3. When given a choice between a shoal composed of size-matched minnows Phoxinus phoxinus and a shoal composed of the same number of all uninfected or all S. solidus-infected sticklebacks, test fish always preferred the sticklebacks, regardless of their infection status, over the minnow shoal. These observations suggest that species, parasite status and shoal size are all of importance when fish decide which shoal to join.

Iaith wreiddiolSaesneg
Tudalennau (o-i)1365-1368
Nifer y tudalennau4
CyfnodolynJournal of Fish Biology
Cyfrol53
Rhif cyhoeddi6
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 31 Rhag 1998
Cyhoeddwyd yn allanolIe

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