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Spatial relationships between an introduced snapper and native goatfishes on Hawaiian reefs

Biological Invasions

By:
and
DOI: 10.1007/s10530-004-2983-6

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Abstract

It has been suggested that the introduced blueline snapper (Lutjanus kasmira, Family: Lutjanidae) may adversely affect populations of native fishery species in Hawai'i through competition for spatial or dietary resources, or through predation on young fish. We studied the habitat use patterns of L. kasmira and several native reef fish species using direct observation by SCUBA divers. Habitat use patterns of the yellowtail goatfish (Mulloidichthys vanicolensis, Family: Mullidae) were most similar to those of L. kasmira. Both species were primarily found low in the water column and were closely associated with areas of vertical relief. Individual M. vanicolensis were found higher in the water column when L. kasmirawere present, but L. kasmira were not similarly affected by M. vanicolensis. This finding suggests asymmetrical competition for shelter, in which the dominant L. kasmira displaces M. vanicolensis farther into the water column. This displacement from the protection of the reef could increase the vulnerability of M. vanicolensisto predators and fishers. ?? Springer 2005.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Spatial relationships between an introduced snapper and native goatfishes on Hawaiian reefs
Series title:
Biological Invasions
DOI:
10.1007/s10530-004-2983-6
Volume
7
Issue:
6
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Biological Invasions
First page:
925
Last page:
933