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basal area and density

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Journal Article
Aquatic Ecosystem Health & Management (2009) 12 (4): 401–408.
Published: 30 November 2009
...B. Satyanarayana; A. V. Raman; H. Mohd-Lokman; F. Dehairs; V. S. Sharma; Dahdouh-Guebas Farid Multivariate analysis (PRIMER) based on mangrove tree density and basal area measurements in Coringa, a Bay-Mangrove ecosystem in the Indian sub-continent, revealed 6 different floristic groups. While...
FIGURES
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (3-4): 353–372.
Published: 01 January 1998
... forests were determined using the point centered quarter method (Cintr6n et al., 1978), in six transects with points 10 m apart for each lagoon. Only the trees with diameter greater than 2.5 cm at breast height (DBH) were considered. Density, basal area and complexity index (CI; Holdridge et al., 1971...
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Published: 30 November 2009
. cylindrical ), based on stem density (stems 0.1 ha − 1 ) and, (B) Basal area (m 2 0.1 ha − 1 ). Group-4 ( A. marina , A. officinalis and E. agallocha ) distribution based on stem density (C) and basal area (D) (scale: small and big circles in each panel represent minimum and maximum values More
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Published: 30 November 2009
Figure 2. Mangrove species similarity at 84 sites: (A) Species cluster and MDS ordination based on stem density (stems 0.1 ha − 1 ). (B) Species cluster and MDS ordination based on basal area (m 2 0.1 ha − 1 ). More
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (2): 217–229.
Published: 01 June 2002
... in the present study was low when compared to the northern and southern coasts of Porto Rico and to the PaciŽ c coast of Mexico, where the basal areas were 17.8 and 60.8 m2 ha 1, respectively (Pool et al., 1977). The lowest basal area increment and the minimum density of individuals in the reference site...
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (1): 77–85.
Published: 02 January 2019
... sedimentation rate observed was 14.6 ± 4.8 mg.cm −2 .d −1 . The lower density of coral spats observed on 90° and 60° angle exposed outer tiles might be due to the observed sedimentation rate and it is believed that coral spats preferred the shaded environment initially for further perpetuation...
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Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (1): 70–81.
Published: 02 January 2018
... Peninsula, China by examining density, dimensions and biomass of shoots relative to leaf ages. In addition, we examined if variability in leaf age structure was related to water temperature and/or underwater irradiance. The leaf density, number of leaves per shoot, leaf area index, total leaf area per shoot...
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Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (3): 309–319.
Published: 14 September 2007
..., the diameter of each tree at breast height (dbh), its height and mean basal area were recorded. At each point in the various transects, a surface soil sample (0–15 cm) was collected and analyzed for the determination of soil moisture. Air-dried soil samples were analyzed using Micro-Kjeldahl for plant...
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Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (4): 362–373.
Published: 15 November 2010
... . J. North Am. Bentholo. Soc. , 23 ( 4 ): 728 – 755 . March , J. G. and Pringle , C. M. 2003 . Food web structure and basal resource utilization along a tropical island stream continuum, Puerto Rico . Biotropica , 35 : 84 – 93 . Mathur , R. P. 1991a,b . “ Stretches...
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Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (2): 118–126.
Published: 28 May 2010
..., and are underlain by sands deposited previously in the upper shoreface. Organic peat often accumulates in low areas or swales between beach ridges ( Thompson, 1992 ; Thompson and Baedke, 1995 , 1997 ; Baedke and Thompson, 2000 ). Figure 4. Oblique aerial photo of about 90 beach ridges in the Manistique...
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Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (4): 353–362.
Published: 01 October 2005
... directions for ecotoxicological research. It is useful to distinguish between two aspects of scale: extent and grain ( Wiens, 1989 ; Ahl and Allen, 1996 ; Turner and Johnson, 2001 ). In the spatial domain, extent refers to physical size and is measured in units of length, area or volume...
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Journal Article
Aquatic Ecosystem Health & Management (2009) 12 (4): 364–374.
Published: 30 November 2009
... of these traverses were identified and counted ( Lackey, 1938 ). Two further replicates were treated in an identical manner. Calculation of algal cell density per unit area was done following methods in APHA, 1989 . Diatoms were routinely examined with Nikon research microscope (OPTIPHOT model) using an X40...
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Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (4): 422–431.
Published: 09 December 2008
...Michael R. Twiss; Ian R. MacLeod Coastal inputs of nutrients and contaminants impact phytoplankton community composition and health in localized and large areas of coastal Lake Ontario. Advanced fluorimetric instrumentation (Fast Repetition Rate Fluorimeter [FRRF], FluoroProbe) was used during June...
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Journal Article
Aquatic Ecosystem Health & Management (2015) 18 (1): 105–113.
Published: 02 January 2015
... ). For example, omnivorous fish in lower-latitude areas are with smaller sizes, substantially higher density, and therefore much higher zooplankton demand per unit of biomass. The strong predation intensity promotes negative cascading effects. Second, the existence of alternative states is another important...
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Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (1): 91–104.
Published: 10 March 2008
... was qualitatively selected by the investigator based on site characteristics and rules for plot location ( Mack, 2004c ). Presence and areal cover were recorded for herb and shrub strata, stem density and basal area were recorded for all woody species > 1 m tall. All species encountered in a plot were identified...
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Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (1): 3–17.
Published: 01 March 2002
... maximum, cor- responding to daily flux of photosynthetically-avail- able solar radiation penetrating the atmosphere to reach the earth s surface is set at 12.6 MJ m 2 (which is about 47% of the total reaching the earth s surface), and representing a mean photon flux density of ~ 8 × 1020 m 2 s 1 or ~ 1.33...
Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (3): 281–288.
Published: 01 January 1999
... (1996) and Dally and Hartwig (1997). Moreover, these environmental toxicants interfere with reproductive and develop­mental mechanisms in a variety of organisms (Sunderman et al., 1991; Ono et al., 1996; Henry et al., 1997), and ultimately affect survival and density of wildlife populations, having...
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (4): 396–407.
Published: 02 October 2019
... is significantly correlated with the likelihood of establishment in the introduced areas (Duggan et al., 2006 ). Copp et al. ( 2010 ) also found that human population density and the number of fish imports are the best predictors of propagule pressure. Britton and Gozlan ( 2013 ) further identified the threshold...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (4): 417–439.
Published: 02 October 2019
... Department of Environment, Food & Rural Affairs, to G.H. Copp; the MFIS-China Organizing Committee to D.C.J. Yeo; the Central Public-interest Scientific Institution Basal Research Fund CAFS (No. 2018GH11 and 2019GH09), to H. Wei and D. Luo; the National Science Centre, Poland (decision No. DEC-2011/01/D...
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Includes: Supplementary data