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The species ' primary threats include entanglement in fisheries netting , industrialization in the areas surrounding Lake Ladoga , fuel spills from water vessels and the disturbance of their warm-weather sunning places by human recreational activities .
 location: Lake Ladoga
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Lake Ladoga