{'fraction_non_alphanumeric': 0.031446540880503145, 'fraction_numerical': 0.018867924528301886, 'mean_word_length': 5.923913043478261, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Reproductive Habits of Non-native Red Swamp Crayfish (Procambarus clarkii) at Pine Lake, Sammamish, Washington

The introduction of non-native crayfish to any body of water directly and indirectly affects the aquatic ecosystem into which it was introduced (Dorn and Wojdak 2004). Major effects include changes in primary productivity, food web dynamics, water quality, and biodiversity, because freshwater crayfishes are keystone species (Nyström 2002). Worldwide, freshwater crayfish communities are becoming increasingly homogenized as the same three or four species of North American crayfish are repeatedly introduced (Taylor 2002).