The Fine Structure of the Gastric Exocrine Cells of the Purple Sea Urchin, Strongylocentrotus purpuratus

1968 ◽  
Vol 87 (2) ◽  
pp. 201 ◽  
Author(s):  
Nicholas D. Holland ◽  
James A. Lauritis
Keyword(s):  
Fine Structure ◽  
Sea Urchin ◽  
Strongylocentrotus Purpuratus ◽  
Exocrine Cells ◽  
Purple Sea Urchin

Sublethal mechanisms of Pb and Zn toxicity to the purple sea urchin (Strongylocentrotus purpuratus) during early development

2014 ◽  
Vol 146 ◽  
pp. 220-229 ◽  
Author(s):  
Margaret S. Tellis ◽  
Mariana M. Lauer ◽  
Sunita Nadella ◽  
Adalto Bianchini ◽  
Chris M. Wood
Keyword(s):  
Early Development ◽  
Sea Urchin ◽  
Strongylocentrotus Purpuratus ◽  
Zn Toxicity ◽  
Purple Sea Urchin

scholarly journals Effects of five southern California macroalgal diets on consumption, growth, and gonad weight, in the purple sea urchin Strongylocentrotus purpuratus

2014 ◽  
Author(s):  
Matthew C Foster ◽  
Jarrett E Byrnes ◽  
Daniel C Reed
Keyword(s):  
Sea Urchin ◽  
Sea Urchins ◽  
Strongylocentrotus Purpuratus ◽  
Macrocystis Pyrifera ◽  
Reproductive Capacity ◽  
Giant Kelp ◽  
Mixed Diet ◽  
Gonad Weight ◽  
Consumption Growth ◽  
Purple Sea Urchin

Consumer growth and reproductive capacity are direct functions of diet. Strongylocentrotid sea urchins, the dominant herbivores in California kelp forests, strongly prefer giant kelp (Macrocystis pyrifera), but are highly catholic in their ability to consume other species. The biomass of Macrocystis fluctuates greatly in space and time and the extent to which urchins can use alternate species of algae or a mixed diet of multiple algal species to maintain fitness when giant kelp is unavailable is unknown. We experimentally examined the effects of single and mixed species diets on consumption, growth and gonad weight in the purple sea urchin Strongylocentrotus purpuratus. Urchins were fed single species diets consisting of one of four common species of macroalgae (the kelps Macrocystis pyrifera and Pterygophora californica, and the red algae Chondracanthus corymbiferus and Rhodymenia californica (hereafter referred to by genus) or a mixed diet containing all four species ad libitum over a 13-week period in a controlled laboratory setting. Urchins fed Chondracanthus, Macrocystis and a mixed diet showed the highest growth (in terms of test diameter, wet weight and jaw length) and gonad weight while urchins fed Pterygophora and Rhodymenia showed the lowest. Urchins consumed their preferred food, Macrocystis at the highest rate when offered a mixture, but consumed Chondracanthus or Macrocystis at similar rates when the two algae were offered alone. The differences in urchin feeding behavior and growth observed between these diet types suggest the relative availability of the algae tested here could affect urchin populations and their interactions with the algal assemblage. The fact that the performance of urchins fed Chondracanthus was similar or higher than those fed the preferred Macrocystis suggests purple sea urchins could sustain growth and reproduction during times of low Macrocystis abundance as is common following large wave events.

scholarly journals The role of fasting on spine regeneration and bacteremia in the purple sea urchin Strongylocentrotus purpuratus

PLoS ONE ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. e0228711
Author(s):  
David A. Scholnick ◽  
Alexandra E. Winslow
Keyword(s):  
Sea Urchin ◽  
Strongylocentrotus Purpuratus ◽  
Purple Sea Urchin

Influence of environmentally relevant concentrations of Zn, Cd and Ni and their binary mixtures on metal uptake, bioaccumulation and development in larvae of the purple sea urchin Strongylocentrotus purpuratus

2021 ◽  
Vol 230 ◽  
pp. 105709
Author(s):  
Lygia S. Nogueira ◽  
Fabíola Xochilt Valdez Domingos-Moreira ◽  
Roberta Daniele Klein ◽  
Adalto Bianchini ◽  
Chris M. Wood
Keyword(s):  
Binary Mixtures ◽  
Sea Urchin ◽  
Metal Uptake ◽  
Strongylocentrotus Purpuratus ◽  
Purple Sea Urchin

Effects of three zinc-containing sunscreens on development of purple sea urchin (Strongylocentrotus purpuratus) embryos

2020 ◽  
Vol 218 ◽  
pp. 105355 ◽  
Author(s):  
Brittany Cunningham ◽  
Cristina Torres-Duarte ◽  
Gary Cherr ◽  
Nikki Adams
Keyword(s):  
Sea Urchin ◽  
Strongylocentrotus Purpuratus ◽  
Purple Sea Urchin
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