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Autor     Wikipedia
Titel    Snakelocks anemone
Jahr    2012
URL    http://en.wikipedia.org/w/index.php?title=Snakelocks_anemone&oldid=500993724

Literaturverz.   

no
Fußnoten    no
Fragmente    2


Fragmente der Quelle:
[1.] Tim/Fragment 041 08 - Diskussion
Zuletzt bearbeitet: 2014-12-12 22:40:10 WiseWoman
Fragment, Gesichtet, SMWFragment, Schutzlevel sysop, Tim, Verschleierung, Wikipedia Snakelocks anemone 2012

Typus
Verschleierung
Bearbeiter
SleepyHollow02
Gesichtet
Yes.png
Untersuchte Arbeit:
Seite: 41, Zeilen: 8-10
Quelle: Wikipedia Snakelocks anemone 2012
Seite(n): online source, Zeilen: -
Its retractile tentacles are green colour with purple tips. This is due to the presence of symbiotic algae (zooxanthellae) within the tentacles that use sunlight as an energy source. Since the anemones benefit from this they prefer brightly lit shallow waters. The tentacles of anemones in deep or murky water can be a grey colour but are otherwise usually a deep green colour with purple tips. This is due to the presence of symbiotic algae within the tentacles that use sunlight as an energy source. Since the anemones benefit from this they prefer brightly lit shallow waters.
Anmerkungen

The source is not mentioned.

Note that there are invisible, but active wikipedia links for "symbiosis", "algae" and "tentacles" in the PDF file of the thesis that is available for download. In the source one can find the same links.

Sichter
(SleepyHollow02), Hindemith

[2.] Tim/Fragment 042 02 - Diskussion
Zuletzt bearbeitet: 2014-12-12 22:40:36 WiseWoman
Fragment, Gesichtet, SMWFragment, Schutzlevel sysop, Tim, Verschleierung, Wikipedia Snakelocks anemone 2012

Typus
Verschleierung
Bearbeiter
SleepyHollow02
Gesichtet
Yes.png
Untersuchte Arbeit:
Seite: 42, Zeilen: 2-18
Quelle: Wikipedia Snakelocks anemone 2012
Seite(n): online source, Zeilen: -
On average the anemone is 8 cm large.

Unlike other cnidarians, anemones (and other Anthozoa) entirely lack the free-swimming medusa stage of the life cycle; the polyp produces eggs and sperm, and the fertilized egg develops into a planula that develops directly into another polyp.

Anemones tend to stay in the same spot until conditions become unsuitable (prolonged dryness, for example), or a predator attacks them. In that case, anemones can release themselves from the substrate and use flexing motions to swim to a new location.

Most sea anemones attach temporarily to submerged objects; a few thrust themselves into the sand or live in furrows; a few are parasitic on other marine organisms.

The sexes in sea anemones are separate in some species, while others are protandric hermaphrodites. The gonads are strips of tissue within the mesenteries. Both sexual and asexual reproduction can occur. In sexual reproduction males release sperm to stimulate females to release eggs, and fertilization occurs. Anemones eject eggs and sperm through the mouth. The fertilized egg develops into a planula, which settles and grows into a single polyp. In asexual reproduction extratentacular budding occurs, a type of fission, where the anemone will split roughly in half generally through the mouth.

This species is extremely adaptable to various conditions of temperature and salinity.

On average the snakelock anemone is 8 cm large.

[...]

Unlike other cnidarians, anemones (and other Anthozoa) entirely lack the free-swimming medusa stage of the life cycle; the polyp produces eggs and sperm, and the fertilized egg develops into a planula that develops directly into another polyp.

Anemones tend to stay in the same spot until conditions become unsuitable (prolonged dryness, for example), or a predator attacks them. In that case anemones can release themselves from the substrate and use flexing motions to swim to a new location. Most sea anemones attach temporarily to submerged objects; a few thrust themselves into the sand or live in furrows; a few are parasitic on other marine organisms.[1]

The sexes in sea anemones are separate in some species, while others are protandric hermaphrodites. The gonads are strips of tissue within the mesenteries. Both sexual and asexual reproduction can occur. In sexual reproduction males release sperm to stimulate females to release eggs, and fertilization occurs. Anemones eject eggs and sperm through the mouth. The fertilized egg develops into a planula, which settles and grows into a single polyp. In asexual reproduction extratentacular budding occurs, a type of fission, where the anemone will split roughly in half generally through the mouth.

[...]

[...] It rapidly adapts to aquarium life as they are extremely adaptable to various conditions.

Anmerkungen

The source is not mentioned.

Note that there are invisible, but active wikipedia links for "cnidarians", "Anthozoa" and "medusa" in the PDF file of the thesis that is available for download. In the source one can find the same links.

Sichter
(SleepyHollow02), Hindemith

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