scholarly journals Nitrogen-limited primary productivity of coral reef algal turfs: potential contribution of ammonium excreted by Diadema antillarum

1988 ◽  
Vol 47 ◽  
pp. 145-152 ◽  
Author(s):  
SL Williams ◽  
RC Carpenter
Keyword(s):  
Coral Reef ◽  
Primary Productivity ◽  
Potential Contribution ◽  
Diadema Antillarum ◽  
Algal Turfs

Predation on a newly-stocked long-spined sea urchin (Diadema antillarum) by the batwing coral crab (Carpilius corallinus) on a coral reef restoration site

2021 ◽  
Author(s):  
William C Sharp ◽  
Brian A Reckenbeil
Keyword(s):  
Coral Reef ◽  
Sea Urchin ◽  
Reef Site ◽  
Diadema Antillarum ◽  
Ecological Processes ◽  
Reef Restoration ◽  
Restoration Site

This photograph documents a batwing coral crab (Carpilius corallinus) preying on the sea urchin (Diadema antillarum) on a coral reef site enhanced with artificial shelter and staghorn coral. This interaction illustrates an interaction that to be better understood to develop a restoration strategy that harnesses positive ecological processes.

Localized Impacts of Hurricane Irma on Diadema antillarum and Coral Reef Community Structure

2019 ◽  
Vol 43 (5) ◽  
pp. 1133-1143
Author(s):  
Julia N. Kobelt ◽  
William C. Sharp ◽  
Travis N. Miles ◽  
Colette J. Feehan
Keyword(s):  
Community Structure ◽  
Coral Reef ◽  
Diadema Antillarum ◽  
Coral Reef Community ◽  
Reef Community ◽  
Hurricane Irma

Mass transfer limitation of photosynthesis of coral reef algal turfs

2006 ◽  
Vol 151 (2) ◽  
pp. 435-450 ◽  
Author(s):  
Robert C. Carpenter ◽  
Susan L. Williams
Keyword(s):  
Mass Transfer ◽  
Coral Reef ◽  
Mass Transfer Limitation ◽  
Algal Turfs

Grazing effects on nitrogen fixation in coral reef algal turfs

1997 ◽  
Vol 130 (2) ◽  
pp. 223-231 ◽  
Author(s):  
S. L. Williams ◽  
R. C. Carpenter
Keyword(s):  
Nitrogen Fixation ◽  
Coral Reef ◽  
Grazing Effects ◽  
Algal Turfs

scholarly journals Potential contribution of fish restocking to the recovery of deteriorated coral reefs: an alternative restoration method?

2016 ◽  
Author(s):  
Uri Obolski ◽  
Lilach Hadany ◽  
Avigdor Abelson
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Low Cost ◽  
Management Approach ◽  
Rapid Decline ◽  
Potential Contribution ◽  
Reef Management ◽  
Reef Restoration ◽  
Reef Recovery ◽  
Restoration Method

Counteracting the worldwide trend of coral reef degeneration is a major challenge for the scientific community. A crucial management approach to minimizing stress effects on healthy reefs and helping the recovery of disturbed reefs is reef protection. However, the current rapid decline of the world's reefs suggests that protection might be insufficient as a viable stand-alone management approach for some reefs. We thus suggest that the ecological restoration of coral reefs (CRR) should be considered as a valid component of coral reef management, in addition to protection, if the applied method is economically applicable and scalable. This theoretical study examines the potential applicability and outcomes of restocking grazers as a restoration tool for coral reef recovery – a tool that has not been applied so far in reef restoration projects. We studied the effect of restocking grazing fish as a restoration method using a mathematical model of degrading reefs, and analyzed the financial outcomes of the restocking intervention. The results suggest that applying this restoration method, in addition to protection, can facilitate reef recovery. Moreover, our analysis suggests that the restocking approach almost always becomes profitable within several years. Considering the relatively low cost of this restoration approach and the feasibility of mass production of herbivorous fish, we suggest that this approach should be considered and examined as an additional viable restoration tool for coral reefs.

scholarly journals Spatial and temporal variability of benthic primary production in upwelling-influenced Colombian Caribbean coral reefs

2014 ◽  
Author(s):  
Corvin Eidens ◽  
Elisa Bayraktarov ◽  
Valeria Pizarro ◽  
Thomas Wilke ◽  
Christian Wild
Keyword(s):  
Coral Reef ◽  
Primary Production ◽  
Temporal Variability ◽  
Abiotic Factors ◽  
Scleractinian Corals ◽  
Primary Producers ◽  
Temporal Differences ◽  
Natural Park ◽  
Specimen Area ◽  
Algal Turfs

In Tayrona National Natural Park (Colombian Caribbean), abiotic factors such as light intensity, water temperature, and nutrient availability are subjected to high temporal variability due to seasonal coastal upwelling. These factors are major drivers controlling coral reef primary production. This offers the opportunity to assess the effects of abiotic factors on key coral reef ecosystem services in terms of productivity. We therefore quantified primary net (Pn) and gross production (Pg) of the dominant local primary producers (scleractinian corals, macroalgae, algal turfs, crustose coralline algae, and microphytobenthos) at a water current/wave-exposed (EXP) and -sheltered (SHE) site in an exemplary bay of Tayrona National Natural Park. A series of short-term incubations was conducted to quantify O2 fluxes of the different primary producers before and at the end of the upwelling event 2011/2012. At the level of the organism, scleractinian corals showed highest Pn and Pg rates before upwelling (16 and 19 mmol O2 m-2 specimen area h-1), and corals and algal turfs dominated the primary production at the end of upwelling (12 and 19 mmol O2 m-2 specimen area h-1, respectively). At the ecosystem level, corals contributed most to total Pn (EXP: 81 %; SHE: 65 %) and Pg (EXP: 78 %; SHE: 55 %) before the upwelling, while at the end of the upwelling, corals contributed most to Pn and Pg only at EXP (73 and 75 %) and macroalgae at SHE (52 and 46 %, respectively). Despite the significant spatial and temporal differences in individual productivity of investigated groups and their different contribution to reef productivity, no spatial or temporal differences in daily ecosystem Pn and Pg were detected (194 – 218 and 311 – 409 mmol O2 m-2 seafloor area d-1). Our findings therefore indicate that local autotrophic benthic reef communities are well adapted to pronounced fluctuations of environmental key parameters. This might lead to a higher resilience against climate change consequences and anthropogenic disturbances.

Sign in / Sign up

Export Citation Format

Share Document