Marine bottomfish communities from the Indian Ocean Coast of Bali to mid-Sumatra
1996
McManus, J.W. (International Center for Living Aquatic Resources Management, MCPO Box 2631, 0718 Makati City (Philippines))
The fish communities of Bali to mid-Sumatra region are characterized by an assemblage extending reasonably uniformly across all depths overlain by a shallow fish community of more mobile species which tapers off sharply at approximately 100 m depth. The physical explanation for this limitation is not clear, but behavioral adaptations to periodic oxygen limitations cannot be discounted. Both the shallow and depth - ubiquitous communities can be subdivided further, but the resulting assemblages exhibit high between-group similarities. The shallow assemblages are both species-rich and highly even in distribution of biomass among species. The ubiquitous assemblages are relatively species-poor and exhibited low evenness. The waters below 100 m could probably be fished by commercial interest without substantially affecting the fish communities in shallow waters and vice-versa, but the lower biomass of fish below 100 m probably makes this impractical
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