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hierarchical classification

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Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (1): 59–72.
Published: 01 January 2004
... hierarchical classification and factorial correspondence analysis identified 7 and 6 assemblages in 1976 and 1995, respectively. The main groups are: 1) the Amphioxus lanceolatus-Glycymeris glycymeris; 2) the Abra alba-Corbula gibba and 3) the oligospecific Macoma balthica communities. A large consortium of...
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (2): 143–157.
Published: 01 January 1998
...R.A. Wadeson; K.M. Rowntree Abstract A simple matrix developed by a small group of ecologists, geomorphologists and an hydraulic engineer at a workshop in February 1995 was proposed as a standardised classification tool for the recognition of hydraulic biotopes, instream flow environments...
Journal Article
Aquatic Ecosystem Health & Management (2013) 16 (4): 374–384.
Published: 01 October 2013
... rigaudi and Mesocyclops leuckarti. The zooplankton community was represented by diverse feeding groups including herbivores, carnivores, detritivores and bacterivores. The hierarchical dendrogram revealed distinct spatiotemporal variations. The Sultanganj community was separated at first hierarchical...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (1): 1–12.
Published: 01 April 2001
... of fish, groups of fish and fish assemblages can be evaluated. The methodology recognises that to some degree all areas within an aquatic system contribute to the maintenance of biodiversity. As such, a classification scheme is proposed to evaluate the potential versus the actual contribution of an...
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (3): 329–341.
Published: 03 July 2019
... contrast to the prior half century where little cross-jurisdictional management was reported. Our analyses based on meeting attendance and coded discussions at the meetings demonstrated that three ecosystem-based management perspectives were discussed prior to 1972 (ecological integrity, hierarchical...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (2): 123–138.
Published: 01 June 2001
.... / Aquatic Ecosystem Health and Management 4 (2001) 123-138 acterized 21 lakes. Korokara-Palmier was isolated, be- cause of its extremely high seston concentration. Five groups were defined from the hierarchical classification. Their ecological characteristics are given in Table 2. Six deep and stratified...
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (1): 25–35.
Published: 01 January 1998
... , C.A. , Liss , W.J. , Warren , C.E. and Hurley , M.D. 1986 . A hierarchical framework for stream habitat classification: viewing streams in a watershed context . Environ. Manage. , 10 : 199 – 214 . Grundy , J. 1996 . “ Flow Types and Stream Ecology: Putting Flow Types...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (2): 187–200.
Published: 08 June 2007
... lower basins. However, data limitations in some portions of the system need to be addressed before creation of an ichthyogeographic classification. The river basins that make up the potamic axis are low to medium developed and environmental pressures are unevenly distributed. Chemical pollution is a...
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (1): 30–39.
Published: 02 January 2019
...Zhijun Dong; Dongyan Liu; Yujue Wang; Baoping Di Different chemometric approaches were used to determine generic patterns in the temporal and spatial variations in the coastal water quality of the northern Yellow Sea off Yantai, China. Hierarchical cluster analysis grouped the 16 months into two...
Journal Article
Aquatic Ecosystem Health & Management (2020) 23 (4): 436–444.
Published: 01 October 2020
... considered suitable for the purpose of the work. CA is a well-known and widely classification approach used for environmental purposes with its hierarchical and non-hierarchical algorithms (Massart and Kauffman, 1983; Einax J. et al., 1997) It is widely recognized that CA allows to organize the whole set...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (1): 19–28.
Published: 02 January 2016
... disposal from GOŚ, and the ecological status was assessed on the basis of benthic diatoms. Diatom indices: IO, GDI, IPS were calculated in order to determine the ecological status and water quality. Hierarchical cluster analysis and multivariate analysis of diatom assemblages were used to reveal...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (4): 561–570.
Published: 01 January 2000
.... All rights reserved. Keywords: Regional settings; Hierarchical study scales 1. Introduction Brazil is the largest South American country; its 8,511,965 km2 surface area spans nearly half of the continent's land area. Of Brazil's 7408 km of coast­ line, 6786 km contain mangrove forests which cover an...
Image
Published: 01 January 2004
Figure 4. Spatial distribution of the six subtidal faunal assemblages in the Rance basin defined by hierarchical classification and FCA from benthic data collected in 1995. More
Image
Published: 01 January 2004
Figure 3. Spatial distribution of the seven subtidal faunal assemblages in the Rance basin defined by hierarchical classification and FCA from benthic data collected in 1976. More
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (4): 363–366.
Published: 01 October 2005
... number of species present ( N ), and w ij is the ‘distinctness weight’ given to the path linking species i and j in the hierarchical classification. We have selected 4 different and progressively larger spatial scales, adopting as closely as feasible the categories and notation of Gray...
Journal Article
Aquatic Ecosystem Health & Management (2017) 20 (1-2): 116–129.
Published: 03 April 2017
... evenness (c) of each sampling station in Damodar River area. Figure 6. Abundance of major taxa (a), number of taxa (b), indices of richness, diversity and evenness (c) of each sampling station in Subarnarekha River area. The hierarchical classification for Annelida ( Figure 7a...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (2): 233–242.
Published: 01 June 2002
... hierarchical classification. In order to determine whether D* for echinoderms in Tarut Bay during 1945 to 1947 or 1977 falls statis- tically within the expected range of D* for the Arabian Gulf, a funnel was plotted of D* vs species numbers. This was constructed using the the formula for approximate confidence...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (1): 61–70.
Published: 01 March 2002
... (weighted) path length and, when used with presence-absence data, may be defined as follows: D* = S S wij i j>i N(N 1)/2 where the summations are over the number of species present (N), and wij is the distinctness weight given to the path linking species i and j in the hierarchical classification. In...
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (2): 125–141.
Published: 01 January 1998
... . Water Resources Bulletin , 22 ( 3 ): 389 – 398 . Frissell , C.A. , Liss , W.J. , Warren , C.E. and Hurley , M.D. 1986 . A hierarchical framework for stream classification: viewing streams in a watershed context . Environmental Management , 10 : 199 – 214...
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (1): 74–82.
Published: 02 January 2016
... and newly recorded species for Hainan Island and China were verified using Algaebase, the Catalogue of Life China (2010), the Annual Checklist and the checklist of marine biota of China seas (Liu, 2008 ). Hierarchical classification of the Phylum Rhodophyta was fulfilled according to Saunders and...
Includes: Supplementary data