但据报告显示，水葫芦的数量不断增加。
但有渔民认为，近期水葫芦的影响已不大。[{'character': '但', 'pinyin': 'dan4', 'highest pitch': 10.59, 'lowest pitch': 9.94, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 9.94, 'lowest pitch': 7.41, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '渔', 'pinyin': 'v2', 'highest pitch': 9.58, 'lowest pitch': 6.98, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '民', 'pinyin': 'min2', 'highest pitch': 9.67, 'lowest pitch': 8.1, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '认', 'pinyin': 'ren4', 'highest pitch': 9.1, 'lowest pitch': 6.67, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 7.58, 'lowest pitch': 5.96, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.28}, {'character': '近', 'pinyin': 'jin4', 'highest pitch': 9.04, 'lowest pitch': 7.81, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '期', 'pinyin': 'qi1', 'highest pitch': 9.08, 'lowest pitch': 8.8, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 13.93, 'lowest pitch': 6.4, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '葫', 'pinyin': 'hu2', 'highest pitch': 7.33, 'lowest pitch': 6.19, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '芦', 'pinyin': 'lu5', 'highest pitch': 10.64, 'lowest pitch': 7.33, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.97, 'lowest pitch': 7.17, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '影', 'pinyin': 'ing2', 'highest pitch': 8.29, 'lowest pitch': 6.19, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '响', 'pinyin': 'xiang2', 'highest pitch': 8.29, 'lowest pitch': 5.47, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '已', 'pinyin': 'i3', 'highest pitch': 6.4, 'lowest pitch': 5.4, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '不', 'pinyin': 'bu2', 'highest pitch': 5.4, 'lowest pitch': 4.43, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 9.18, 'lowest pitch': 1.69, 'duration': 0.3, 'prosody hierarchy': '#4'}]