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Keywords = Pearson-Rosenberg model

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22 pages, 3994 KiB  
Article
Application and Validation of an Ecological Quality Index, ISEP, in the Yellow Sea
by Jae-Won Yoo, Yong-Woo Lee, Mi-Ra Park, Chang-Soo Kim, Sungtae Kim, Chae-Lin Lee, Su-Young Jeong, Dhongil Lim and Sung-Yong Oh
J. Mar. Sci. Eng. 2022, 10(12), 1908; https://doi.org/10.3390/jmse10121908 - 5 Dec 2022
Cited by 2 | Viewed by 2170
Abstract
An ecological index of macrobenthic communities is an important tool for assessing the biological quality of habitats and ecosystems. We tested the performance of the inverse function of the Shannon–Wiener evenness proportion (ISEP) with data from the entire west coast of Korea, seasonally [...] Read more.
An ecological index of macrobenthic communities is an important tool for assessing the biological quality of habitats and ecosystems. We tested the performance of the inverse function of the Shannon–Wiener evenness proportion (ISEP) with data from the entire west coast of Korea, seasonally sampled from 2006 to 2008. Two validations were performed: (1) examination of the relationship between ISEP and environmental factors and (2) correspondence between the ISEP and the Pearson–Rosenberg (P-R) model for the species-abundance-biomass (SAB) patterns and taxonomical variations. The ISEP was significantly correlated with suspended solids but independent of other natural habitat conditions due to their low to moderate contamination levels. From this, ISEP performed as expected in transitional zones of low salinity and applications across habitats of various sediments. The SAB patterns and taxonomic variations along the ISEP grades showed marked similarities to the P-R model. The only departure was biomass, which increased after the normal status. The increase was interpreted as reflecting a healthier and more mature status. Taxonomic variation patterns and the taxa composition that characterized either poor or healthy status corresponded well with the P-R model. The conformity to the P-R model indicates the capability and potential applicability of the ISEP to other coastal systems. Full article
(This article belongs to the Special Issue Benthic Ecology in Coastal and Brackish Systems)
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24 pages, 655 KiB  
Review
Diversity Patterns of Benthic Macrofauna Caused by Marine Fish Farming
by Carlos Sanz-Lázaro and Arnaldo Marín
Diversity 2011, 3(2), 176-199; https://doi.org/10.3390/d3020176 - 14 Apr 2011
Cited by 58 | Viewed by 12087
Abstract
This paper reviews the patterns observed in the diversity and structure of the macrofauna benthic community under the influence of fish farming. First, we explain the effects of organic enrichment on the sediment and the consequences for the inhabiting communities. We describe the [...] Read more.
This paper reviews the patterns observed in the diversity and structure of the macrofauna benthic community under the influence of fish farming. First, we explain the effects of organic enrichment on the sediment and the consequences for the inhabiting communities. We describe the diversity trends in spatial and temporal gradients affected by fish farming and compare them with those described by the Pearson and Rosenberg model. We found that in general terms, the trends of diversity and other community parameters followed the Pearson and Rosenberg model but they can vary to some extent due to sediment local characteristics or to secondary disturbances. We also show the different mechanisms by which wild fish can affect macrofauna diversity patterns under fish farming influence. In addition, we comment the importance of the macrofauna diversity in the ecosystem functions and propose some guidelines to measure functional diversity related to relevant processes at ecosystem level. We propose more research efforts in the main topics commented in this review to improve management strategies to guarantee a good status of the diversity and ecosystem functioning of sediments influenced by fish farming. Full article
(This article belongs to the Special Issue Spatial and Temporal Benthic Diversity Patterns)
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