18363
In the present study , acute Ni toxicity experiments ( 96 - h ) were conducted at various salinities ( 0 - 36 ppt ) to determine the effects of salinity on Ni toxicity to 2 euryhaline fish species , Kryptolebias marmoratus and Fundulus heteroclitus .
 Chemical: Ni; Chemical: Ni
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Ni; Chemical: Ni