Nest Guard Replacement in the Antarctic Fish Harpagifer bispinis : Possible Altruistic Behavior

Nesting biology of the Antarctic plunder fish, Harpagifer bispinis (Schneider), was examined at Arthur Harbor, Antarctic Peninsula, during the austral winter, 1975. Females prepare nest sites, spawn, and guard the eggs for 4 to 5 months, the longest guarded incubation period reported for any fish sp...

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Bibliographic Details
Published in:Science
Main Author: Daniels, Robert A.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1979
Subjects:
Multidisciplinary
Antarctic
Antarctic Peninsula
Arthur Harbor
Austral
The Antarctic
Antarc*
Online Access:http://dx.doi.org/10.1126/science.205.4408.831
https://www.science.org/doi/pdf/10.1126/science.205.4408.831
Description
Summary:Nesting biology of the Antarctic plunder fish, Harpagifer bispinis (Schneider), was examined at Arthur Harbor, Antarctic Peninsula, during the austral winter, 1975. Females prepare nest sites, spawn, and guard the eggs for 4 to 5 months, the longest guarded incubation period reported for any fish species. If this guard is removed, it is soon replaced by a conspecific, usually male. If the second guard is removed, a third replaces it. Guards are essential to ensure nest survival. Selfish or parental acts or acts of kinship or reciprocity do not adequately explain guard replacement. The act may be altruistic.

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