scholarly journals Wave exposure indices from digital coastlines and the prediction of rocky shore community structure

2008 ◽  
Vol 353 ◽  
pp. 1-12 ◽  
Author(s):  
MT Burrows ◽  
R Harvey ◽  
L Robb
Keyword(s):  
Community Structure ◽  
Rocky Shore ◽  
Wave Exposure

scholarly journals Coral communities condition in varying wave exposure: the gulf of Cazones, Cuba

2016 ◽  
Vol 64 (1) ◽  
pp. 79 ◽  
Author(s):  
Hansel Caballero Aragon ◽  
Pedro M Alcolado ◽  
Néstor Rey-Villiers ◽  
Susana Perera Valderrama ◽  
Juliett González Méndez
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Marine Protected Area ◽  
Coral Cover ◽  
Coral Community ◽  
Wave Exposure ◽  
Maximum Diameter ◽  
Live Coral ◽  
Coral Mortality ◽  
Coral Communities

Wave exposure can influence community structure and distribution of shallow coral reefs, by affecting organisms both directly and indirectly. To assess the current stony coral community condition under different degrees of wave exposure at a marine protected area of the Gulf of Cazones (SW Cuba), two expeditions were carried out in May 2010 and June 2012. Four sampling sites were sampled at reef crests (1.5 m deep), and twelve at fore-reefs, at 10, 15 and 20 m deep in four geographic locations. Live coral cover, species richness and composition, colony density, and maximum diameter were assessed using the AGRRA 2001 methodology. Multivariate and non-parametric statistics were applied to compare sites. The coral community structure within reef crests was not homogenous. The observed variability of indicators apparently was determined by great coral mortality events resulting from natural disturbances that occurred in the past (hurricanes, bleaching and diseases). Fore-reef coral communities displayed better condition and lower coral mortality than reef crests. Species richness and coral composition varied, while multivariate and statistical methods did not reveal site grouping with regard to wave exposure. The remaining biological condition indicators were similar among sites, except in the most exposed one, where coral cover and coral size were slightly lower. Wave exposure in the gulf of Cazones seemed not to have a significant influence on differences in condition and structure of the assessed coral communities.

scholarly journals Changes in habitat complexity resulting from sequential invasions of a rocky shore: implications for community structure

2015 ◽  
Vol 17 (6) ◽  
pp. 1799-1816 ◽  
Author(s):  
Saachi Sadchatheeswaran ◽  
George M. Branch ◽  
Tamara B. Robinson
Keyword(s):  
Community Structure ◽  
Habitat Complexity ◽  
Rocky Shore

scholarly journals Species richness and community structure of class Polyplacophora at the intertidal rocky shore on the marine priority region no. 33, Mexico

2014 ◽  
Vol 04 (02) ◽  
pp. 43-52 ◽  
Author(s):  
Lizeth Galeana-Rebolledo ◽  
Rafael Flores-Garza ◽  
Adriana Reyes-Gómez ◽  
Sergio García-Ibáñez ◽  
Pedro Flores-Rodríguez ◽  
...  
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Rocky Shore ◽  
Intertidal Rocky Shore

scholarly journals The role of macrobiota in structuring microbial communities along rocky shores

2014 ◽  
Author(s):  
Catherine A Pfister ◽  
Jack A Gilbert ◽  
Sean M Gibbons
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Rocky Shore ◽  
Alpha Diversity ◽  
Rocky Shores ◽  
Microbial Composition ◽  
Habitat Specificity ◽  
Microbial Habitat ◽  
Inert Surfaces

Rocky shore microbial diversity presents an excellent system to test for microbial habitat specificity or generality, enabling us to decipher how common macrobiota shape microbial community structure. At two coastal locations in the northeast Pacific Ocean, we show that microbial composition was significantly different between inert surfaces, the biogenic surfaces that included rocky shore animals and an alga, and the water column plankton. While all sampled entities had a core of common OTUs, rare OTUs drove differences among biotic and abiotic substrates. For the mussel Mytilus californianus, the shell surface harbored greater alpha diversity compared to internal tissues of the gill and siphon. Strikingly, a 7-year experimental removal of this mussel from tidepools did not significantly alter the microbial community structure of microbes associated with inert surfaces when compared with unmanipulated tidepools. However, bacterial taxa associated with nitrate reduction had greater relative abundance with mussels present, suggesting an impact of increased animal-derived nitrogen on a subset of microbial metabolism. Because the presence of mussels did not affect the structure and diversity of the microbial community on adjacent inert substrates, microbes in this rocky shore environment may be predominantly affected through direct physical association with macrobiota.

Sign in / Sign up

Export Citation Format

Share Document