Skip to main content

Table 1 Refractive indices of the tunic measured by an Abbe refractometer

From: Measurement of refractive indices of tunicates’ tunics: light reflection of the transparent integuments in an ascidian Rhopalaea sp. and a salp Thetys vagina

Specimens

Number

Refractive indices: Average (± SD)

Upper boundary

Lower boundary

Difference between the boundaries

Rhopalaea sp. (fresh)

11

1.3393 (±0.0006)

1.3435 (±0.0017)

0.0042 (±0.0016)

Rhopalaea sp. (frozen–thawed)

4

1.3396 (±0.0002)

1.3434 (±0.0003)

0.0038 (±0.0002)

Thetys vagina (frozen–thawed)

4

Not available

1.3416 (±0.0011)

0.0023 (±0.0011)a

  1. aDifference of refractive indices between the boundary and the seawater (nD = 1.3393)
Back to article page

Zoological Letters

ISSN: 2056-306X

Contact us