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Thermal and asphyxia exposure risk to freshwater fish in feral‐pig‐damaged tropical wetlands
Author(s) -
Waltham Nathan J.,
Schaffer Jason R.
Publication year - 2018
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13742
Subject(s) - wetland , biology , tropics , ecology , aquaculture , fishery , water quality , fish <actinopterygii>
Acute thermal and asphyxia exposure risks for freshwater fish occupying three tropical wetland typologies were examined. Field water‐quality data revealed that fish in wetlands grazed by pigs had the highest exposure risks, because they are shallow and heavily damaged by pig activities. In contrast, with the exception is dissolved oxygen (which still reached critical conditions because of aquatic vegetation respiration), deeper permanent and pig‐managed wetlands provides the best opportunity for the same fish species to survive in a heavily pig‐modified tropical landscape.