6375
The objectives of the present study were to twofold : assess changes in fathead minnow response metrics ( i . e . , condition , liver and gonad size , egg production , and gill histology ) associated with increasing concentrations of salinity and dissolved sulphate and determine whether sublethal effect thresholds established in laboratory experiments correspond to actual in - river concentrations using water from the mouth and headwaters of the Athabasca River .
 Chemical: sulphate
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: sulphate 
Answer:
 Chemical: sulphate