Selectivity of plankton nets over mesozooplankton taxa: implications for abundance, biomass and diversity estimation
نویسندگان
چکیده
منابع مشابه
Accurate automatic quantification of taxa-specific plankton abundance using dual classification with correction
Optical imaging samplers are becoming widely used in plankton ecology, but image analysis methods have lagged behind image acquisition rates. Automated methods for analysis and recognition of plankton images have been developed, which are capable of real-time processing of incoming image data into major taxonomic groups. The limited accuracy of these methods can require significant manual post-...
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C.P. Gallienne* **, D.V.P. Conway, J. Robinson, N. Naya, J.S. William, T. Lynch and S. Meunier *Plymouth Marine Laboratory, Prospect Place, Plymouth, PL1 3DH. Marine Biological Association,The Laboratory, Citadel Hill, Plymouth, PL12PB. Seychelles Fishing Authority, PO Box 449, Fishing Port,Victoria, Mahe¤ , Seychelles. Public Utilities Corporation, Water and Sewage Division, Laboratory Section...
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Measuring biodiversity requires empirical techniques to effectively estimate it from real data. The well-known underestimation of the number of species applies to low orders of diversity in general. I test nine estimators including three new ones on geometric and lognormal distributions that represent realistic, hyper-diverse communities. The best two estimators allow a good estimation of diver...
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The goal of this thesis is to study the causes and consequences of the size structure of marine planktonic ecosystems. To this end, a theoretical (continuous) size spectrum model was developed. Phytoplankton and zooplankton biomass is represented in the model as functions of their respective biomass size spectrums. Thus, the model allows the natural recovery of the continuous size spectrum for ...
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This work was aimed at assessing the effect of crude oil spill on the diversity and abundance of plankton communities of the Njaba River area of the spill. Sampling was carried out in 1999 in nine clusters of stations, three each from upstream, spill-point and downstream transects. Each cluster was made up of three perpendicular sampling points across the river. Standard methods were used in co...
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ژورنال
عنوان ژورنال: Journal of Limnology
سال: 2010
ISSN: 1723-8633,1129-5767
DOI: 10.4081/jlimnol.2010.287