Variation Und Ökologie Von Psammechinus Miliaris (Gmelin)

Lindahl, Eric; Runnström, John

doi:10.1111/j.1463-6395.1929.tb00699.x

Cited by 37 publications

(13 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The best-supported hypothesis is that sea urchins cover themselves in response to sunlight (Lindahl & Runnström 1929, Mortensen 1943, Millott 1956, Lewis 1958, and others reviewed in Millot 1975, specifically ultraviolet radiation (UVR, 295 to 400 nm) (Sharp & Gray 1962, Lees & Carter 1972. Many sea urchins display negative phototaxis to strong sunlight by hiding among rocks and vegetation or by moving into areas where the light is less intense (Holmes 1912, Sharp & Gray 1962.…”

Section: Introductionmentioning

confidence: 99%

“…This activity has been studied most extensively in the sea urchin Lytechinus variegatus (Millott 1955, Sharp & Gray 1962, but has also been documented in many other species of sea urchins from polar, e.g., Sterechinus neumayeri (Dayton et al 1970); temperate, e.g., Lytechinus anamesus (Lees & Carter 1972), Psammechinus milaris (Lindahl & Runnström 1929, Mortensen 1943, Evechinus chloroticus (Dix 1970), Strongylocentrotus purpuratus (Douglas 1976), S. lividus (Dubois 1914), and Sphaerechinus sp. (von Uexkull 1887); and tropical regions, e.g., Tripneustes esculentus (Lewis 1958, Moore et al 1963.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

UV radiation evokes negative phototaxis and covering behavior in the sea urchin Strongylocentrotus droebachiensis

Adams

2001

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Intertidal and subtidal Strongylocentrotus droebachiensis (Müller) often hide among rocks or cover themselves with debris, including macroalgae, mussel shells, and pebbles. Similar reactions in other species of sea urchins have been interpreted as a response to bright sunlight. This study examined the response of S. droebachiensis specifically to ultraviolet radiation (UVR). In laboratory studies using artificial irradiation, S. droebachiensis exposed to UVR (290 to 400 nm) and photosynthetically active radiation (PAR, 400 to 700 nm) sought shade and covered themselves significantly more frequently than those exposed only to PAR. In outdoor aquaria, individuals were exposed to ambient solar radiation that was filtered to create 4 treatments (dark, PAR, PAR + UVA, or PAR + UVA + UVB) and observed for 6 h as total solar irradiance changed with time of day. Sea urchins covered themselves with significantly more material when exposed to PAR + UVA + UVB than in all other treatments, and in response to total irradiance. The amount of covering by sea urchins exposed to PAR + UVA (320 to 400 nm) varied over the course of the day, but were typically less than those exposed to UVB (295 to 320 nm). These sea urchins covered themselves more than those exposed to PAR alone or held in the dark. Sea urchins exposed to PAR alone did not differ in the amount of covering from those held in the dark, regardless of time of day. The amount of covering correlated significantly with UVB and UVA irradiance independently, but not PAR irradiance. This study does not rule out that multiple cues may cause the covering response, but it demonstrates that S. droebachiensis seeks shelter and covers itself in response to UVR, primarily UVB wavelengths or a combination of UVA and UVB, presumably to avoid UV-induced damage. KEY WORDS: Sea urchins · Covering behavior · Ultraviolet radiationResale or republication not permitted without written consent of the publisher

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

UV radiation evokes negative phototaxis and covering behavior in the sea urchin Strongylocentrotus droebachiensis

Adams

2001

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…The duration of the period of cytoplasmic underripeness is dependent on exterior conditions. Lindahl and Runnstr6m (1929) found reasons to believe that in Ps. miliaris the sexual maturity was dependent on the average temperature during a certain period rather than on peaks of temperature.…”

Section: A Effect Of the Sperm On The Jelly Coat Of The Eggmentioning

confidence: 94%

On Some Properties of the Jelly Coat in Oocytes and Mature Eggs of Sea Urchins. A Study of Phase-Dependent Changes of Metaplasmic Layers in the Cell Surface

Runnström

1964

The Biological Bulletin

View full text Add to dashboard Cite

“…Lindahl & Runnstrom believe that these two types are only phenotypically different. For further information as to variation in size, shape and colour, distribution, sexual periods, influence of temperature, salinity, light, differences in habits, etc., I refer to the paper by Lindahl & Runnstrom (1929). .…”

Section: Inheritance In Echinoid Hybridsmentioning

confidence: 99%

Change in inheritance in echinoid hybrids

Hörstadius

1940

J. Mar. Biol. Ass.

View full text Add to dashboard Cite

In 1932 crosses were made at Plymouth between Psammechinus miliaris ♀, both Z-type (from the shore) and S-type (from Eddystone), and Echinus esculentus ♂. The larvae from the S eggs differed in size and shape from those from the Z eggs (cf. Figs. 1,2 with 3–6). None of the hybrid plutei possessed the green pigment of P. miliaris, nor the posterior epaulettes of E. esculentus. Some of the larvae (Figs. 3, 4) had a posterior pedicellaria, like E. esculentus, in others this organ was missing (Figs. 1, 2, 5, 6). Some of these plutei were preserved, others went through metamorphosis. Healthy larvae of these combinations (00+ and 000) have not hitherto been described. The results are compared with those of previous authors (see table, p. 100). Some possible causes of change of inheritance in different years are discussed.

show abstract

Variation Und Ökologie Von Psammechinus Miliaris (Gmelin)

Cited by 37 publications

References 2 publications

UV radiation evokes negative phototaxis and covering behavior in the sea urchin Strongylocentrotus droebachiensis

UV radiation evokes negative phototaxis and covering behavior in the sea urchin Strongylocentrotus droebachiensis

On Some Properties of the Jelly Coat in Oocytes and Mature Eggs of Sea Urchins. A Study of Phase-Dependent Changes of Metaplasmic Layers in the Cell Surface

Change in inheritance in echinoid hybrids

Contact Info

Product

Resources

About