. Bulletin. Natural history; Natural history. Aug. 1981 PoRAK & Tranquilu: Impingement and EIntrainment of Fishes 645 UJLU IS _l Q (O _1 UJ ^ < _] u s < LU ai en 1- LU UJ X s: o; CO s: o o < CO. I A Teel centrifugal pump (model j 5K476C) with a () rein- 1 forced hose was used to pump intake I water through a No. 3 mesh () i plankton net. The plankton net was suspended in a 55-gallon drum (Fig. 4). The discharge hose from the pump was placed in the net and submerged to reduce mechanical damage to the organisms. About two-thirds of the barrel remained full of


. Bulletin. Natural history; Natural history. Aug. 1981 PoRAK & Tranquilu: Impingement and EIntrainment of Fishes 645 UJLU IS _l Q (O _1 UJ ^ < _] u s < LU ai en 1- LU UJ X s: o; CO s: o o < CO. I A Teel centrifugal pump (model j 5K476C) with a () rein- 1 forced hose was used to pump intake I water through a No. 3 mesh () i plankton net. The plankton net was suspended in a 55-gallon drum (Fig. 4). The discharge hose from the pump was placed in the net and submerged to reduce mechanical damage to the organisms. About two-thirds of the barrel remained full of water while the sample was taken, and the excess water drained out through a 2-inch () discharge pipe. Only one sample was taken at the intake structure from the 8-m depth until 6. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division


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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory