{'fraction_non_alphanumeric': 0.039361702127659576, 'fraction_numerical': 0.027659574468085105, 'mean_word_length': 4.993630573248407, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 1, '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}}
Epibiont populations associated with Diporeia spp. (amphipoda) from Lake Michigan

The benthic amphipod Diporeia spp. is the dominant benthic macroinvertebrate in the offshore region (>30m) ofthe Laurentian Great Lakes and, as a detritivore, plays a critical role in the offshore food web. Diporeia feed on organic material that settles from the water colurnn and, in turu, are fed upon by many fish species. This organism, therefore, serves as an important trophic link between lower and upper trophic levels (GARDNER et al. 1990). Diporeia are currently declining in all the Great Lakes except Lake Superior (DERMOTT & KEREc 1997, NALEPA et al. 1998, LOZANO et al. 2001, DERMOTI 2001). While declines have been coincidental with the introduction and spread of the zebra mussel (Dreissena polymorpha) and the quagga mussel (Dreissena bugensis), exact mechanisms for the negative response have not been clearly defined (NALEPA et al. 2004).