Extrinsic and intrinsic factors affecting the metamorphic rate of Tripneustes gratilla (Echinodermata: Echinoidea)

Correction: Histamine is a modulator of metamorphic competence in Strongylocentrotus purpuratus (Echinodermata: Echinoidea)

In Figure six (Figure 1 here) of the original manuscript [1] panels B-H are representative images from which measurements were taken and then graphed in Figure six panel I. In the original submission of the manuscript panel C and H ended up showing identical images. We corrected this error by replacing panel C with the correct representative image. Note that this error occurred when preparing t...

Nocardioides echinoideorum sp. nov., isolated from sea urchins (Tripneustes gratilla).

A Gram-stain-positive, aerobic, non-motile, rod-shaped, yellow-pigment-producing bacterium, (designated strain CC-CZW004T), was isolated from seafood samples (sea urchins) at Penghu Island in Taiwan. Strain CC-CZW004T grew optimally at pH 7.0 and 30 °C in the presence of 3 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA genes revealed a distinct taxonomic position attained by strain CC-CZ...

Distinguishing Intrinsic from Extrinsic Factors 4 Underlying Firing Rate

Effect of sperm cell density on measured toxicity from the sea urchin Tripneustes gratilla fertilization bioassay.

The sea urchin sperm fertilization bioassay is an approved U.S. Environmental Protection Agency (U.S. EPA) biomonitoring tool for regulatory and compliance purposes. The method adapted for the Hawaiian species Tripneustes gratilla recommends a sperm-to-egg ratio of 2,500. Using a fixed ratio for all tests does not sufficiently account for seasonal and individual variabilities of this organism. ...

A Study of Intrinsic and Extrinsic Motivation Iranian mysticism gravamen

Gravamen is a kind of lyrical literature in which human tries own suffering and distress to reveal the audience. There are several types of gravamen. One of them is the mystical breakthrough that comes from the intrinsic and extrinsic motivation. Including Intrinsic motivations can be mentioned the sadness of separation from partner, the sadness of separation from partner, sensual temptations, ...