scholarly journals Effects of predation upon the long-spined sea urchin Diadema antillarum by the spotted spiny lobster Panulirus guttatus

2014 ◽  
Vol 495 ◽  
pp. 185-191 ◽  
Author(s):  
MD Kintzing ◽  
MJ Butler
Keyword(s):  
Sea Urchin ◽  
Spiny Lobster ◽  
Diadema Antillarum ◽  
Panulirus Guttatus

The effects of metals on embryo-larval and adult life stages of the sea urchin, Diadema antillarum

2005 ◽  
Vol 74 (3) ◽  
pp. 254-263 ◽  
Author(s):  
G.K. Bielmyer ◽  
K.V. Brix ◽  
T.R. Capo ◽  
M. Grosell
Keyword(s):  
Sea Urchin ◽  
Adult Life ◽  
Life Stages ◽  
Diadema Antillarum

scholarly journals Apparent stability of a low-density Diadema antillarum regime for Puerto Rican coral reefs

2018 ◽  
Vol 75 (6) ◽  
pp. 2193-2201 ◽  
Author(s):  
Ruber Rodríguez-Barreras ◽  
Alfredo Montañez-Acuña ◽  
Abimarie Otaño-Cruz ◽  
Scott D Ling
Keyword(s):  
Puerto Rico ◽  
Sea Urchin ◽  
Coral Cover ◽  
Live Coral ◽  
Low Density ◽  
Limited Evidence ◽  
Diadema Antillarum ◽  
Benthic Habitats ◽  
Stable Regime ◽  
Apparent Stability

Abstract Caribbean reefs have suffered decline in coral cover in recent decades due to recurrent anthropogenic and natural stressors. The regional collapse of the sea urchin Diadema antillarum, combined with overfishing, has contributed to a phase-shift of coral reef communities towards fleshy macroalgal dominance. Here, we examine the population dynamics of D. antillarum at five sites in Puerto Rico from 2011 to 2016 and determine trends between the sea urchin and local benthic habitats. The sea urchin population exhibited low but stable densities (with slight, but non-significant trend of increase), yet showed variability between sites. Large urchins (>60 mm test diam.) were the most abundant across sites and through time, followed by medium urchins (41–60 mm test diam.), whereas small individuals (<40 mm) were rare, indicating recruitment-limitation. Spatial and temporal differences in benthic habitats were not related to local D. antillarum abundances. Macroalgae cover declined at all sites over the 6 years, ranging 5–86%, whereas live coral cover also decreased across all sites (ranging 4–38%). Diadema antillarum populations in Puerto Rico appear stable with limited evidence for recovery trends back to pre-mass mortality densities. Full population recovery may take longer than expected; however, evidence indicates that the contemporary low-density D. antillarum population represents a novel stable regime.

scholarly journals Isolation and characterization of eight polymorphic microsatellites for the spotted spiny lobster,Panulirus guttatus

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1467 ◽  
Author(s):  
Nathan Truelove ◽  
Donald C. Behringer ◽  
Mark J. Butler IV ◽  
Richard F. Preziosi
Keyword(s):  
Spiny Lobster ◽  
Florida Keys ◽  
Null Alleles ◽  
Polymerase Chain Reaction Primer ◽  
Genomic Libraries ◽  
Genetics Research ◽  
Isolation And Characterization ◽  
Quality Control Testing ◽  
Panulirus Guttatus ◽  
Hardy Weinberg Equilibrium

Microsatellite sequences were isolated from enriched genomic libraries of the spotted spiny lobster,Panulirus guttatususing 454 pyrosequencing. Twenty-nine previously developed polymerase chain reaction primer pairs ofPanulirus argusmicrosatellite loci were also tested for cross-species amplification inPanulirus guttatus.In total, eight consistently amplifying, and polymorphic loci were characterized for 57 individuals collected in the Florida Keys and Bermuda. The number of alleles per locus ranged from 8 to 20 and observed heterozygosities ranged from 0.409 to 0.958. Significant deviations from Hardy–Weinberg equilibrium were found in one locus from Florida and three loci from Bermuda. Quality control testing indicated that all loci were easy to score, highly polymorphic and showed no evidence of linkage disequilibrium. Null alleles were detected in three loci with moderate frequencies ranging from (20% to 22%). These eight microsatellites provide novel molecular markers for future conservation genetics research ofP. guttatus.

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.

scholarly journals Size-selective predation on the sea urchin Echinometra sp. A by Japanese spiny lobster Panulirus japonicus

2016 ◽  
Vol 82 (3) ◽  
pp. 306-314
Author(s):  
SHIGERU KAWAMATA ◽  
SEIYA TAINO ◽  
MAO MIYAJI ◽  
YOHEI NAKAMURA
Keyword(s):  
Sea Urchin ◽  
Spiny Lobster ◽  
Selective Predation ◽  
Panulirus Japonicus
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