Minimal sampling requirements for a precise assessment of soft-bottom macrobenthic communities, using AMBI

2007 ◽  
Vol 349 (2) ◽  
pp. 323-333 ◽  
Author(s):  
Iñigo Muxika ◽  
Leire Ibaibarriaga ◽  
José Ignacio Sáiz ◽  
Ángel Borja
Keyword(s):  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Precise Assessment

Efficiency of sampling gears (Quadrate and Core) and Taxonomic Resolution on the Soft Bottom Intertidal Macrobenthic community of Port Blair coast

2021 ◽  
Vol 25 (11) ◽  
pp. 93-103
Author(s):  
Nosad Sahu ◽  
Ganesh Thiruchitrambalam ◽  
Raj Kiran Lakra
Keyword(s):  
Correlation Coefficient ◽  
Similarity Index ◽  
Rank Correlation ◽  
Work Capacity ◽  
Information Loss ◽  
Taxonomic Resolution ◽  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Taxonomic Level ◽  
Family Level

Ecological studies of a region cannot proceed forward without the evaluation of species diversity. With the ever-increasing demand for studies to understand the change in the macrobenthic communities, the focus has primarily been shifted towards faster results to track down the changes from the prior environments. Therefore, studying the complete benthos faunal diversity of an area leads to an unrealistic approach. Thus, researchers tend to depend on various sampling gears, which ease the work capacity. The present study compared two samplings gears (core and quadrate) in two different habitats to understand the diversity of the macrobenthic communities. In terms of abundance, the core gear showed higher significant differences as compared to quadrate. However, the gears did not significantly differ among the diversity indices (Margalef's index and Shannon- Winer index) and the cluster analysis (Bray-Curtis similarity index and nMDS). The present study found that the 'information loss' was minimal with the aggregated data at a higher taxonomic level. Spearman rank correlation coefficient revealed that the information loss was low up to family-level and the correlation coefficient decreases as the taxonomic level increases after family-level. Nonetheless, the choice of sampling gears did not influence the diversity of the soft-bottom intertidal macrobenthic communities.

Intra-annual Variability in Hawaiian Shallow-water, Soft-bottom Macrobenthic Communities Adjacent to a Eutrophic Estuary

2000 ◽  
Vol 50 (2) ◽  
pp. 245-258 ◽  
Author(s):  
S.A. Mccarthy ◽  
E.A. Laws ◽  
W.A. Estabrooks ◽  
J.H. Bailey-Brock ◽  
E.A. Kay
Keyword(s):  
Shallow Water ◽  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Annual Variability

Soft bottom macrobenthic communities in a semi-enclosed Bay bordering the English Channel: The Rade de Cherbourg

2017 ◽  
Vol 9 ◽  
pp. 106-116 ◽  
Author(s):  
Noémie Baux ◽  
Jean-Philippe Pezy ◽  
Quentin Bachelet ◽  
Alexandrine Baffreau ◽  
Yann Méar ◽  
...  
Keyword(s):  
English Channel ◽  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Enclosed Bay

Distribution of soft bottom macrobenthic communities in tropical marinas of Singapore

2019 ◽  
Vol 22 (3) ◽  
pp. 443-453 ◽  
Author(s):  
Chin Soon Lionel Ng ◽  
Kok Ben Toh ◽  
Tai Chong Toh ◽  
Juat Ying Ng ◽  
Pei Rong Cheo ◽  
...  
Keyword(s):  
Soft Bottom ◽  
Macrobenthic Communities

Structural and functional diversity of soft-bottom macrobenthic communities in the Southern North Sea

2018 ◽  
Vol 214 ◽  
pp. 173-184 ◽  
Author(s):  
Naomi T. Breine ◽  
Annelies De Backer ◽  
Carl Van Colen ◽  
Tom Moens ◽  
Kris Hostens ◽  
...  
Keyword(s):  
Functional Diversity ◽  
North Sea ◽  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Southern North Sea

scholarly journals Diversity and biological trait analysis of soft-bottom macrobenthic communities in the Belgian part of the North Sea.

2018 ◽  
Author(s):  
Naomi Breine ◽  
Annelies De Backer ◽  
Kris Hostens ◽  
Carl Van Colen ◽  
Tom Moens ◽  
...  
Keyword(s):  
North Sea ◽  
Marine Ecosystem ◽  
Benthic Fauna ◽  
Soft Bottom ◽  
Macrobenthic Communities ◽  
Mobile Species ◽  
The North ◽  
Biological Trait ◽  
Spatial Coverage ◽  
The North Sea

Soft-bottom macrobenthic communities are an essential part of the marine ecosystem for which a healthy status is aimed at. Therefore, insights in the structural and functional (trait based) characteristics of the soft-bottom benthic communities in the Southern part of the North Sea are obtained based on 18 years of data, with a large spatial coverage. The communities show clear differences in their structural properties. The fine sand Abra alba community and coarse sand Hesionura elongata community have the highest species richness and diversity values. The muddy Limecola balthica community and medium sand Nephtys cirrosa community the lowest. However, looking at biological trait characteristics, the communities show some functional redundancy. In the relative coarser, permeable sands, more free living, mobile species, were found causing diffusive mixing, whilst the finer sand and mud communities have more sessile, tube building and burrow dwelling species. With their contribution to bioturbation and bio-irrigation processes, the benthic fauna prove to be essential for the biogeochemical status of these finer sand sediments. Based on this integrated evaluation of biodiversity and functional related characteristics, we will demonstrate how this improve status assessments and an appropriate determination of the habitat sensitivity to different human induced pressures.

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