Woodrow R J, Howard J J
New York State Department of Health, SUNY College Environmental Science and Forestry, Syracuse 13210.
J Am Mosq Control Assoc. 1994 Sep;10(3):427-9.
The cryptic nature of Culiseta melanura larval habitats has limited the use of the conventional one-pint dipper for enumerating the larval density of this species. A modified chemical transfer pump was used in a survey of a known breeding swamp. Field trials assessed the practicality and potential biases towards instars in open vs. closed crypts. From 148 samples taken at 37 sites, 631 Cs. melanura larvae were collected. Closed crypts accounted for 21% of the positive samples. The pump had utility in the field but a relative scarcity of 4th-instar larvae in the samples may indicate a source of bias toward younger instars.
黑跗库蚊幼虫栖息地的隐秘性限制了传统一品脱（约0.47升）长柄勺用于统计该物种幼虫密度的应用。在一项对已知繁殖沼泽地的调查中使用了改良的化学输送泵。实地试验评估了该泵在开放与封闭隐窝中对不同龄期幼虫的实用性和潜在偏差。在37个地点采集的148个样本中，共收集到631只黑跗库蚊幼虫。封闭隐窝占阳性样本的21%。该泵在实地具有实用性，但样本中四龄幼虫相对较少，这可能表明存在偏向较幼龄期幼虫的偏差来源。
