A Quantitative Comparison of Two Zooplankton Sampling Methods, a Plankton Trap and a Towed Net, in the Baltic
作者： Paula Kankaala
关键词: Zooplankton 、 Fishery 、 Biology 、 Plankton 、 Sampling (statistics) 、 Trap (plumbing) 、 Baltic sea 、 Zooplankton biomass 、 Aquatic science 、 Ecology, Evolution, Behavior and Systematics 、 General Agricultural and Biological Sciences
摘要: A comparison between a large plankton trap with capacity of 23 litres and modern towed net was made in the course zooplankton production studies Baltic. On average, efficiency 75% that trap. Both methods were equally efficient catching naupliar stages copepods. The especially low during maximum for adult copepods cladocerans (41 51%, respectively), probably due to active avoidance by fast swimming species. only about 66% as rotifers. This difference is caused loss small softbodied forms through mesh. Only 65% total biomass retained collected net. Net sampling not recommended quantitative studies.
sci-hub.se 参考文章(18)
J. Rudi Strickler, Swimming of Planktonic Cyclops Species (Copepoda, Crustacea): Pattern, Movements and Their Control Springer, Boston, MA. pp. 599- 613 ,(1975) , 10.1007/978-1-4757-1326-8_9
DJ Tranter, AC Heron, Filtration characteristics of Clarke-Bumpus samplers Marine and Freshwater Research. ,vol. 16, pp. 281- 292 ,(1965) , 10.1071/MF9650281
E. Prepas, F. II. Rigler, The enigma of Daphnia
death rates1 Limnology and Oceanography. ,vol. 23, pp. 970- 988 ,(1978) , 10.4319/LO.1978.23.5.0970
R. I. Currie, P. Foxton, A new quantitative plankton net Journal of the Marine Biological Association of the United Kingdom. ,vol. 36, pp. 17- 32 ,(1957) , 10.1017/S0025315400017033
H. Barnes, S. M. Marshall, On the variability of replicate plankton samples and some applications of ‘contagious’ series to the statistical distribution of catches over restricted periods Journal of the Marine Biological Association of the United Kingdom. ,vol. 30, pp. 233- 263 ,(1951) , 10.1017/S002531540001273X
C.M. Boyd, Small scale spatial patterns of marine zooplankton examined by an electronic in situ zooplankton detecting device Netherlands Journal of Sea Research. ,vol. 7, pp. 103- 111 ,(1973) , 10.1016/0077-7579(73)90036-7
P Kott, Modified Whirling Apparatus for the Subsampling of Plankton Marine and Freshwater Research. ,vol. 4, pp. 387- 393 ,(1953) , 10.1071/MF9530387
DJ Tranter, AC Heron, Experiments on filtration in plankton nets Marine and Freshwater Research. ,vol. 18, pp. 89- 112 ,(1967) , 10.1071/MF9670089
Olof Sandström, The Horizontal Distribution of Baltic Epi- and Metalimnic Zooplankton Species Internationale Revue der gesamten Hydrobiologie und Hydrographie. ,vol. 64, pp. 251- 262 ,(1979) , 10.1002/IROH.19790640210
DJ Tranter, A formula for the filtration coefficient of a plankton net Marine and Freshwater Research. ,vol. 18, pp. 113- 122 ,(1967) , 10.1071/MF9670113