scholarly journals Persistence of the exotic kelp Undaria pinnatifida does not depend on sea urchin grazing

2005 ◽  
Vol 285 ◽  
pp. 43-55 ◽  
Author(s):  
JP Valentine ◽  
CR Johnson
Keyword(s):  
Sea Urchin ◽  
Undaria Pinnatifida ◽  
Urchin Grazing

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

Destructive Grazing of Kelp by Sea Urchins in Eastern Canada

1976 ◽  
Vol 33 (6) ◽  
pp. 1278-1283 ◽  
Author(s):  
P. A. Breen ◽  
K. H. Mann
Keyword(s):  
Nova Scotia ◽  
Sea Urchin ◽  
Sea Urchins ◽  
Large Contribution ◽  
Eastern Canada ◽  
Kelp Beds ◽  
Urchin Grazing

Destruction of kelp beds by sea urchins has been documented in St. Margaret’s Bay, Nova Scotia, and also appears to be taking place in other parts of eastern Canada. Continued sea urchin settlement onto grazed areas prevents the return of kelp and other algae for long periods. Because of the large contribution of kelp beds to coastal productivity, the disappearance of kelp from large areas is alarming. Dynamics of sea urchin grazing are discussed.

scholarly journals Interactions between sea urchin grazing and prey diversity on temperate rocky reef communities

Ecology ◽  
2013 ◽  
Vol 94 (7) ◽  
pp. 1636-1646 ◽  
Author(s):  
Jarrett E. K. Byrnes ◽  
Bradley J. Cardinale ◽  
Daniel C. Reed
Keyword(s):  
Sea Urchin ◽  
Rocky Reef ◽  
Temperate Rocky Reef ◽  
Reef Communities ◽  
Prey Diversity ◽  
Urchin Grazing

Sea urchin grazing and kelp re-vegetation in the NE Atlantic

2009 ◽  
Vol 5 (6) ◽  
pp. 515-528 ◽  
Author(s):  
Kjell Magnus Norderhaug ◽  
Hartvig C. Christie
Keyword(s):  
Sea Urchin ◽  
Ne Atlantic ◽  
Urchin Grazing

scholarly journals Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change

2019 ◽  
Vol 73 (1) ◽  
Author(s):  
Sarah B. Traiger
Keyword(s):  
Climate Change ◽  
Elevated Temperature ◽  
Sea Urchin ◽  
Strongylocentrotus Droebachiensis ◽  
Kelp Forests ◽  
Green Sea Urchin ◽  
Kelp Bed ◽  
Elevated Water ◽  
And Shifts ◽  
Urchin Grazing

Abstract Sea urchin grazing rates can strongly impact kelp bed persistence. Elevated water temperature associated with climate change may increase grazing rates; however, these effects may interact with local stressors such as sedimentation, which may inhibit grazing. In Alaska, glacial melt is increasing with climate change, resulting in higher sedimentation rates, which are often associated with lower grazer abundance and shifts in macroalgal species composition. The short-term effects of elevated temperature and sediment on grazing were investigated for the green sea urchin, Strongylocentrotus droebachiensis (O.F. Müller, 1776), in Kachemak Bay, Alaska (59° 37′ 45.00″ N, 151° 36′ 38.40″ W) in early May 2017. Feeding assays were conducted at ambient temperature (6.9–9.8 °C) and at 13.8–14.6 °C with no sediment and under a high sediment load. Grazing rates significantly decreased in the presence of sediment, but were not significantly affected by temperature. Along with sediment impacts on settlement and post-settlement survival, grazing inhibition may contribute to the commonly observed pattern of decreased macroinvertebrate grazer abundance in areas of high sedimentation and increased sedimentation in the future may alter sea urchin grazing in kelp forests.

Eutrophication offsets increased sea urchin grazing on seagrass caused by ocean warming and acidification

2013 ◽  
Vol 485 ◽  
pp. 37-46 ◽  
Author(s):  
OW Burnell ◽  
BD Russell ◽  
AD Irving ◽  
SD Connell
Keyword(s):  
Sea Urchin ◽  
Ocean Warming ◽  
Urchin Grazing
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