23618
A comparative study of the lipid status ( i . e . , the total lipid and phospholipid concentrations and the percentage of fatty acids of the total lipids ) of adult specimens of daubed shanny ( Leptoclinus maculatus ) from Svalbard waters ( Isfjord ) and slender eel blenny ( Lumpenus fabricii ) from the White Sea ( Onega Bay and Tersky shore ) was performed to study the metabolism and functions of lipids of these fishes in ontogeny and under various ecological conditions .
 Chemical: fatty acids
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: fatty acids