MALE-BY-FEMALE INTERACTIONS INFLUENCE FERTILIZATION SUCCESS AND MEDIATE THE BENEFITS OF POLYANDRY IN THE SEA URCHIN HELIOCIDARIS ERYTHROGRAMMA

Evolution ◽  
2005 ◽  
Vol 59 (1) ◽  
pp. 106 ◽  
Author(s):  
Jonathan P. Evans ◽  
Dustin J. Marshall
Keyword(s):  
Sea Urchin ◽  
Fertilization Success ◽  
Heliocidaris Erythrogramma

scholarly journals Potential Use of the Benthic Foraminifers Bulimina denudata and Eggerelloides advenus in Marine Sediment Toxicity Testing

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 775
Author(s):  
Mary McGann
Keyword(s):  
Sea Urchin ◽  
Marine Sediment ◽  
Sediment Toxicity ◽  
Toxicity Testing ◽  
Fertilization Success ◽  
Toxicity Tests ◽  
Sediment Chemistry ◽  
Benthic Foraminifers ◽  
Sediment Toxicity Tests ◽  
Unionized Ammonia

The benthic foraminifers Bulimina denudata and Eggerelloides advenus are commonly abundant in offshore regions in the Pacific Ocean, especially in waste-discharge sites. The relationship between their abundance and standard macrofaunal sediment toxicity tests (amphipod survival and sea urchin fertilization) as well as sediment chemistry analyte measurements were determined for sediments collected in 1997 in Santa Monica Bay, California, USA, an area impacted by historical sewage input from the Hyperion Outfall primarily since the late 1950s. Very few surface samples proved to be contaminated based on either toxicity or chemistry tests and the abundance of B. denudata did not correlate with any of these. The abundance of E. advenus also did not correlate with toxicity, but positively correlated with total solids and negatively correlated with arsenic, beryllium, chromium, lead, mercury, nickel, zinc, iron, and TOC. In contrast, several downcore samples proved to be contaminated as indicated by both toxicity and chemistry data. The abundance of B.denudata positively correlated with amphipod survival and negatively correlated with arsenic, cadmium, unionized ammonia, and TOC; E. advenus negatively correlated with sea urchin fertilization success as well as beryllium, cadmium, and total PCBs. As B. denudata and E. advenus are tolerant of polluted sediments and their relative abundances appear to track those of macrofaunal toxicity tests, their use as cost- and time-effective marine sediment toxicity tests may have validity and should be further investigated.

Examining the Effects of Altered Water Quality on Sea Urchin Fertilization Success and Embryo Development

2013 ◽  
Vol 50 (4) ◽  
pp. 111-118 ◽  
Author(s):  
Roxanne Dominique Haverkort-Yeh ◽  
Clyde S. Tamaru ◽  
Kelvin Dalauta Gorospe ◽  
Malia Ana J. Rivera
Keyword(s):  
Water Quality ◽  
Embryo Development ◽  
Sea Urchin ◽  
Fertilization Success

Spatial patterns of variation in color and spine shape in the sea urchin Heliocidaris erythrogramma

2011 ◽  
Vol 130 (2) ◽  
pp. 161-174 ◽  
Author(s):  
Rachel M. Binks ◽  
Jonathan P. Evans ◽  
W. Jason Kennington ◽  
Jane Prince
Keyword(s):  
Spatial Patterns ◽  
Sea Urchin ◽  
Heliocidaris Erythrogramma ◽  
Spine Shape

Embryotoxicity and teratogenicity of pesticide indoxacarb to sea urchin (Strongylocentrotus intermedius)

2010 ◽  
Vol 61 (11) ◽  
pp. 2733-2739 ◽  
Author(s):  
H. Wang ◽  
H. H. Huang ◽  
J. Ding ◽  
Y. H. Wang
Keyword(s):  
Sea Urchin ◽  
Developmental Toxicity ◽  
Fertilization Success ◽  
Significant Inhibition ◽  
Toxicity Tests ◽  
Strongylocentrotus Intermedius ◽  
Cell Stage ◽  
Stage 4 ◽  
Embryo Toxicity ◽  
Median Effective Concentration

Sperm cell and embryo toxicity tests using the sea urchin Strongylocentrotus intermedius (S. intermedius) were performed to assess the toxicity of indoxacarb, a new widely used insecticide. New toxicity data for indoxacarb expressed as median effective concentration (EC50) were reported for the sea urchin species. When sperms and cells were exposed to the pesticide before fertilization, no significant inhibition in the fertilization success of S. intermedius (up to 40 mg/L) was observed. Developmental toxicity of the pesticide displayed a significant dose-related increase of larval malformations and differentiation arrest at concentrations of 0.1 mg/L to 40.0 mg/L at each cleavage, including the 2-cell stage, 4-cell, blastula, gastrula, prism and 4-arm pluteus stages. It seems that 4-arm pluteus is the most sensitive to indoxacarb with the EC50 of 3.73 mg/L, two times less than that of the first cleavage stage. All these results indicate that more attentions should be paid to the potential marine pollutions caused by this pesticide indoxacarb.

scholarly journals Characterization of the Highly Variable Immune Response Gene Family, He185/333, in the Sea Urchin, Heliocidaris erythrogramma

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e62079 ◽  
Author(s):  
Mattias O. Roth ◽  
Adam G. Wilkins ◽  
Georgina M. Cooke ◽  
David A. Raftos ◽  
Sham V. Nair
Keyword(s):  
Immune Response ◽  
Gene Family ◽  
Sea Urchin ◽  
Immune Response Gene ◽  
Response Gene ◽  
Heliocidaris Erythrogramma
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