Food resource utilization partitioning of fifteen fish species at Bukit Merah Reservoir, Malaysia

Hydrobiologia ◽  
1988 ◽  
Vol 157 (2) ◽  
pp. 143-160 ◽  
Author(s):  
Yap Siaw-Yang
Keyword(s):  
Resource Utilization ◽  
Fish Species ◽  
Food Resource ◽  
Food Resource Utilization

Inter- and intra-guild patterns of food resource utilization by chironomid larvae in a subtropical coastal lagoon

Limnology ◽  
2013 ◽  
Vol 15 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Aurea Luiza Lemes-Silva ◽  
Paulo Roberto Pagliosa ◽  
Mauricio Mello Petrucio
Keyword(s):  
Resource Utilization ◽  
Coastal Lagoon ◽  
Food Resource ◽  
Chironomid Larvae ◽  
Food Resource Utilization

scholarly journals Bioaccumulation of mercury in fishes of Jagadishpur Reservoir, Nepal

2019 ◽  
Vol 7 ◽  
pp. 17-23
Author(s):  
Prakash Acharya ◽  
Chhatra Mani Sharma ◽  
Shichang Kang ◽  
Lekhendra Tripathee ◽  
Junming Guo ◽  
...  
Keyword(s):  
Fish Species ◽  
Fish Community ◽  
Food Resource ◽  
Stomach Contents ◽  
Stomach Content Analysis ◽  
Trophic Levels ◽  
Fish Length ◽  
Mystus Vittatus ◽  
Total Hg ◽  
Food Resource Utilization

Stable isotope ratios of nitrogen (δ15N, ‰) and carbon (δ13C, ‰), accompanied by stomach contents were used to assess the food chain and trophic transfer of mercury in fifty-three marketable sized fish belonging to five species (Channa punctatus, Mystus vittatus, Nandus nandus, Puntius sophore and Xenentodon cancila) from the Jagadishpur Reservoir, Nepal. The highest total Hg concentration was found in X. cancila with an average of 800.42(±279.36) µg/kg exceeding the international marketing limit (500 mg/kg), a carnivorous species. However, except for some individuals of N. nandus, total Hg concentrations in other fish species in the present study were significantly lower than that limit. The fish community had at least two trophic levels (Δ15N > 5.6), C. punctatus with the highest and M. vittatus the lowest signatures of δ15N, which was also supported by the stomach content analysis. There was neither correlation between total Hg and δ15N nor connectivity in food resource utilization (based on δ13C), indicating no biomagnification among these fish species. In addition, Hg concentrations were not significantly correlated to total fish length in any of the species. Fish species in the present study have low Hg content accompanied by low biomagnification through the studied fish community.

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