Food Availability, Sea Urchin Grazing, and Kelp Forest Community Structure

Ecology ◽  
1985 ◽  
Vol 66 (4) ◽  
pp. 1160-1169 ◽  
Author(s):  
Christopher Harrold ◽  
Daniel C. Reed
Keyword(s):  
Community Structure ◽  
Food Availability ◽  
Sea Urchin ◽  
Kelp Forest ◽  
Forest Community ◽  
Urchin Grazing

A multi-decade time series of kelp forest community structure at the California Channel Islands

Ecology ◽  
2013 ◽  
Vol 94 (11) ◽  
pp. 2655-2655 ◽  
Author(s):  
David J. Kushner ◽  
Andrew Rassweiler ◽  
John P. McLaughlin ◽  
Kevin D. Lafferty
Keyword(s):  
Time Series ◽  
Community Structure ◽  
Kelp Forest ◽  
Forest Community ◽  
Channel Islands ◽  
California Channel Islands

scholarly journals A multi-decade time series of kelp forest community structure at San Nicolas Island, California (USA)

Ecology ◽  
2013 ◽  
Vol 94 (11) ◽  
pp. 2654-2654 ◽  
Author(s):  
Michael C. Kenner ◽  
James A. Estes ◽  
M. Tim Tinker ◽  
James L. Bodkin ◽  
Robert K. Cowen ◽  
...  
Keyword(s):  
Time Series ◽  
Community Structure ◽  
Kelp Forest ◽  
Forest Community ◽  
San Nicolas Island

Improving the ability of a BACI design to detect impacts within a kelp‐forest community

2021 ◽  
Author(s):  
Andrew Rassweiler ◽  
Daniel K. Okamoto ◽  
Daniel C. Reed ◽  
David J. Kushner ◽  
Donna M. Schroeder ◽  
...  
Keyword(s):  
Kelp Forest ◽  
Forest Community ◽  
Baci Design

scholarly journals Impact of fish cage-culture on the community structure of zooplankton in a tropical reservoir

2011 ◽  
Vol 101 (1-2) ◽  
pp. 75-84 ◽  
Author(s):  
Juliana D Dias ◽  
Érica M Takahashi ◽  
Natália F Santana ◽  
Cláudia C Bonecker
Keyword(s):  
Community Structure ◽  
Food Availability ◽  
Community Dynamics ◽  
Zooplankton Community ◽  
Fish Farming ◽  
Spatial And Temporal Variation ◽  
Cage Culture ◽  
Tropical Reservoir ◽  
Zooplankton Community Structure ◽  
The Impact

We investigated the impact of fish cage culture on the zooplankton community structure in a tropical reservoir. We hypothesized that community abundance is greater near cages and increases over time due to the increase in food availability. Samplings were performed near, upstream and downstream from net cages, and before and after net cage installation. The abundance of zooplankton increased 15 days after the experiment was set up, followed by a reduction and finally increased. Rotifer abundance showed significant differences among sites (p<0.05) and sampling periods (p<0.001). Significant differences were also observed in total zooplankton and cladoceran abundance (p<0.001). The spatial and temporal variation of the physical and chemical variables were indirectly correlated with the structure and dynamic of the zooplankton community, as they indicated the primary production in the environment. Our hypothesis was rejected, since the zooplankton was abundant at the reference site. Only rotifers showed higher abundance near cages, due to the influence of food availability. Community dynamics during the experiment was also correlated to food availability. Our results suggest an impact of fish farming on the zooplankton community.

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