Temporal Trends of Persistent Toxic Substances and Benthic Community Responses in Special Management Areas of Korea: The Masan Bay and Lake Sihwa Cases

2016 ◽  
pp. 103-126 ◽  
Author(s):  
Yeonjung Lee ◽  
Jongseong Ryu ◽  
Seongjin Hong ◽  
Jong Seong Khim
Keyword(s):  
Benthic Community ◽  
Temporal Trends ◽  
Toxic Substances ◽  
Community Responses

Contamination status and temporal trends of persistent toxic substances in sediment cores from coastal areas of central Vietnam

2020 ◽  
Vol 156 ◽  
pp. 111222 ◽  
Author(s):  
Trinh Thi Tham ◽  
Hoang Quoc Anh ◽  
Bui Thi Phuong ◽  
Le Thi Trinh ◽  
Nguyen Thi Thu Thuy ◽  
...  
Keyword(s):  
Sediment Cores ◽  
Temporal Trends ◽  
Coastal Areas ◽  
Toxic Substances ◽  
Central Vietnam

scholarly journals The benthic community of the Laurentian Great Lakes: Analysis of spatial gradients and temporal trends from 1998 to 2014

2018 ◽  
Vol 44 (4) ◽  
pp. 600-617 ◽  
Author(s):  
Lyubov E. Burlakova ◽  
Richard P. Barbiero ◽  
Alexander Y. Karatayev ◽  
Susan E. Daniel ◽  
Elizabeth K. Hinchey ◽  
...  
Keyword(s):  
Great Lakes ◽  
Benthic Community ◽  
Temporal Trends ◽  
Laurentian Great Lakes ◽  
Spatial Gradients

scholarly journals A Functional Perspective for Reef Benthic Communities: Temporal Trends in the Only Atoll in Southern Atlantic

2021 ◽  
Author(s):  
Vitor André Passos Picolotto ◽  
Anaide W. Aued ◽  
Luis C. P. Macedo-Soares ◽  
Julia Biscaia Zamoner ◽  
Bárbara Segal
Keyword(s):  
Benthic Community ◽  
Temporal Dynamics ◽  
Benthic Communities ◽  
Temporal Trends ◽  
Functional Approach ◽  
Functional Ecology ◽  
Ecosystem Functions ◽  
Actual State ◽  
Global Changes ◽  
Functional Richness

Abstract Reef benthic communities provide many important ecosystem functions such as nutrient cycling, carbonate accretion and tridimensional complexity. Yet, reefs worldwide face an uncertain future, being threatened by local and global impacts. As an alternative approach to evaluate communities’ changes, functional ecology aims to understand how species shape the environment and how functions conduct ecosystems’ dynamics. The aim of this study was to investigate the temporal dynamics (2013–2019) of the reef benthic community in the most pristine reef in Brazil, Rocas Atoll, using a functional diversity approach. We identified 48 organisms grouped into 17 functional entities (according to their traits’ combination), considering all sampling years. Benthic community was temporally dominated by functional entities responsible for providing low reef tridimensional complexity (represented mainly by turf algae). This dominance reflected in low values of functional entropy, due to uneven abundances distribution between unique functional entities, those that have unique trait combination. Functional richness oscillated over years, but did not show great changes in functional spaces, maintaining an equity in the number of functional entities and indicating stability of reef functions in Rocas Atoll, even with unequal abundances’ distribution. Our study is the first to use a functional approach in temporal scale and represents a baseline for South Atlantic, since it provides the actual state of reef benthic communities using a functional approach, in an environment with no direct anthropic impacts. This can help to predict the effects on some ecosystem functions caused by local and global changes and its consequence for ecosystem services.

Benthic Community Responses to the Filling of a Hurricane-Induced Barrier Island Inlet

2021 ◽  
Vol 37 (3) ◽  
Author(s):  
Iván F. Rodil ◽  
Zachary T. Long ◽  
Stephen R. Fegley ◽  
Antonio B. Rodriguez ◽  
Charles H. Peterson
Keyword(s):  
Benthic Community ◽  
Barrier Island ◽  
Community Responses

The influence of elevation on benthic community responses to heavy metals in Rocky Mountain streams

1995 ◽  
Vol 52 (9) ◽  
pp. 1966-1977 ◽  
Author(s):  
William H. Clements ◽  
Peter M. Kiffney
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Species Richness ◽  
Community Structure ◽  
Benthic Community ◽  
Rocky Mountain ◽  
Mountain Streams ◽  
Benthic Community Structure ◽  
Community Responses ◽  
Zn Concentration

We examined the influence of elevation on benthic macroinvertebrate community responses to heavy metals at 33 sites in six Colorado streams where zinc (Zn) concentration ranged from 2 to 691 μg/L and elevation ranged from 2200 to 3500 m above sea level. We assigned the 33 sites to one of four categories, on the basis of the total Zn concentration and the hardness-based criterion for Zn. Number of taxa, abundance, and species richness of mayflies (Ephemeroptera), and abundance of most mayfly and stonefly (Plecoptera) taxa were significantly reduced at sites where Zn concentration exceeded the hardness-based criterion. Although most measures of benthic community structure were not affected at sites where the Zn concentration was less than the criterion, the species richness of mayflies and the abundance of Heptageniidae, Drunella, and Rhyacophila were significantly reduced. Results of stepwise multiple regression analysis and canonical discriminant analysis showed that the effects of Zn on benthic community structure were influenced by elevation. These natural changes in benthic communities confound results of biomonitoring studies and must be considered when assessing heavy metal impacts. Total abundance and species richness of mayflies, and abundance of Heptageniidae were the most reliable indicators of heavy metal impacts in our southern Rocky Mountain streams.

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