Influence of mangrove deforestation and land use change on trophic organization of fish assemblages in creek systems
作者: Augustine W. Mwandya
作者单位: 1Department of Animal, Aquaculture and Range Sciences , Sokoine University of Agriculture , P.0. Box 3004 Morogoro , Tanzania .
刊名: African Journal of Biological Sciences, 2019, Vol.1 (4), pp.42-57
来源数据库: African Science Publications
DOI: 10.33472/AFJBS.1.4.2019.42-57
关键词: EcologyAnthropogenic disturbanceMangrovesTanzania
原始语种摘要: The impacts of human related activities on trophic structure of mangroveassociated fish species, was investigated by sampling fish in mangrove creeks. Trophic organization and stable isotope signatures (δ 13C and δ 15N) of fish in undisturbed mangrove creeks were compared with clear-cut areas of mangrove and reservoirs for saltworks and fish farms constructed after mangrove clearing. Results showed significantly higher densities, species numbers, diversity (H') and numbers of trophic groups in undisturbed sites compared to disturbed sites. Overall, omnivorous fish comprised the most abundant feeding guild, which dominated in the cleared sites followed in order by the uncleared sites and reservoirs. The zoobenthivores/piscivores was the most diverse group, with the highest species richness...
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关键词翻译
关键词翻译
  • disturbed 干扰的
  • deforestation 滥伐
  • mangrove 红手
  • species 
  • uncleared 未清偿
  • organization 组织
  • creek 小湾
  • trophic 营养的
  • omnivorous 杂食的
  • richness 丰满度