scholarly journals Coral reef benthic community changes in the Anthropocene: Biogeographic heterogeneity, overlooked configurations, and methodology

2021 ◽  
Author(s):  
Miriam Reverter ◽  
Stephanie B. Helber ◽  
Sven Rohde ◽  
Jasper M. Goeij ◽  
Peter J. Schupp
Keyword(s):  
Coral Reef ◽  
Benthic Community ◽  
Community Changes

scholarly journals First record of Calliactis tricolor (Le Sueur, 1817) (Cnidaria, Actiniaria, Hormathiidae) in the Veracruz reef system, southwestern Gulf of Mexico

Check List ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 617-629
Author(s):  
José Luis Tello-Musi ◽  
Ricardo González-Muñoz ◽  
Fabián H. Acuña ◽  
Nuno Simões
Keyword(s):  
Coral Reef ◽  
Gulf Of Mexico ◽  
Benthic Community ◽  
First Record ◽  
Hermit Crabs ◽  
Tropical Atlantic ◽  
Sea Anemones ◽  
Southwestern Part ◽  
Symbiotic Relationships ◽  
Reef System

The sea anemone Calliactis tricolor (Le Sueur, 1817) is an ecologically important member of the benthic community in coastal and coral reefs of the tropical Atlantic, particularly for their propensity to establish mutualistic symbiotic relationships with hermit crabs. This species is presumably distributed throughout the Gulf of Mexico; however, it had never been recorded in the southwestern part of the Gulf. Here we document the first record of C. tricolor in 2 coral reef localities of the Veracruz reef system, Mexico, and update the number of species of sea anemones known for the region.

scholarly journals Response of a marine benthic invertebrate community and biotic indices to organic enrichment from sewage disposal

2019 ◽  
Vol 99 (8) ◽  
pp. 1721-1734 ◽  
Author(s):  
Fiona E. Culhane ◽  
Robert A. Briers ◽  
Paul Tett ◽  
Teresa F. Fernandes
Keyword(s):  
Species Richness ◽  
Benthic Community ◽  
Organic Enrichment ◽  
Ecosystem Change ◽  
Ecological Group ◽  
Organic Carbon Content ◽  
Biotic Indices ◽  
Sewage Disposal ◽  
Entire Area ◽  
Community Changes

AbstractNutrient enrichment is a significant cause of ecosystem change in coastal habitats worldwide. This study focuses on the change in a benthic macroinvertebrate community and environmental quality as assessed through different biotic indices following the construction of a sewage outfall pipe in the west of Scotland, from first implementation to seven years after operation of the pipe. Benthic macroinvertebrates are an important part of marine ecosystems because they mediate ecosystem processes and functions, are a key part of food webs and they provide many ecosystem services. Results indicated a clear change in benthic communities over time with an increase in species richness and changes to benthic community composition (specifically feeding type, bioturbation mode and ecological group) towards those indicative of organic enrichment. No clear spatial zonation was observed because organic carbon content increased over the entire area. According to a suite of benthic indices calculated, some negative changes were detectable following the start of sewage disposal, but largely negative community changes, and a change from ‘good’ to ‘moderate’ quality, only occurred seven years after implementation. The increase in species richness in response to increasing disturbance reduced the utility of a multi-metric index, the Infaunal Quality Index, which, instead of amplifying the signal of negative impact, dampened it. We suggest that any change in communities, regardless of direction, should be heeded, and species richness is a particularly sensitive and early warning indicator for this, but a suite of approaches is required to understand benthic community changes.

Benthic community changes associated with intertidal oyster cultivation

1996 ◽  
Vol 27 (12) ◽  
pp. 913-924 ◽  
Author(s):  
M M Nugues ◽  
M J Kaiser ◽  
B E Spencer ◽  
D B Edwards
Keyword(s):  
Benthic Community ◽  
Community Changes ◽  
Oyster Cultivation

scholarly journals Gorgonian octocoral community at Varadero coral reef in the Colombian Caribbean: diversity and spatial distribution

2019 ◽  
Vol 48 (1) ◽  
Author(s):  
Nelson Manrique Rodríguez ◽  
Claudia Agudelo ◽  
Adolfo Sanjuan-Muñoz
Keyword(s):  
Spatial Distribution ◽  
Coral Reef ◽  
Benthic Community ◽  
Associated Fauna ◽  
Ecological Characteristics ◽  
Access Channel ◽  
The Caribbean ◽  
Reef Zone ◽  
Large Vessels ◽  
Sedimentation Processes

Varadero reef has unique ecological characteristics and faces the risk of disappearing because of the dredging for an access channel of large vessels to the Cartagena port in Colombia. In this ecosystem, the sessile benthic community, such as gorgonian octocorals and associated fauna, will be impacted. We examined the diversity and spatial distribution of gorgonians from seven sites located in the mixed coral reef zone. These organisms are generally found in depths between 6 and 10 m in the area. The richness of the gorgoniansspecies is lower than that recorded in other areas of the Caribbean. The low values of abundance and richness species are due to the characteristics of reef setoff and sedimentation processes existing in Cartagena bay.

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