"Immortal" jellyfish habitat range, Turritopsis dohrnii?

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Discussion Overview

The discussion centers around the habitat range of Turritopsis dohrnii, commonly known as the "immortal" jellyfish. Participants explore the species' distribution, potential factors influencing its spread, and the challenges in finding current scientific literature on the topic.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the current habitat range of Turritopsis dohrnii, noting that its range may have increased due to ballast water spread.
  • Another participant expresses uncertainty about the habitat range and requests citations for claims made regarding the species' spread.
  • A participant recalls teaching about the species' unique life cycle, where the medusa stage can revert to the polyp stage, contributing to its "immortal" label.
  • One participant mentions finding information on the species' distribution from a Wikipedia page and seeks clarification on the extent of its spread.
  • A later reply references Dr. Maria Pia Miglietta as a potential contact for more information, noting that there may be limited current data available on the species.
  • There is a correction regarding the species name, with a participant indicating that T. nutricola is distinct from T. dohrnii.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the current habitat range of Turritopsis dohrnii, and multiple viewpoints regarding the species' distribution and the availability of scientific literature remain. There is also a correction regarding the species name, indicating some confusion in the discussion.

Contextual Notes

Participants express difficulty in finding current scientific literature on Turritopsis dohrnii, and there are mentions of potential limitations in available data regarding its habitat range.

Martin Sallberg
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What is the current habitat range of Turritopsis dohrnii or the "immortal" jellyfish? I know that there are multiple species of the Turritopsis genus and that the species dohrnii have recently increased its range by ballast water spread. What is the current range of the exact species dohrnii?
 
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I do not know. Google scholar does not have much. BTW:
Martin Sallberg said:
increased its range by ballast water spread.
How/where did find this? When you cite something it helps us to help you if you can give a reasonable citation. A lot of Cnidaria species in the "larval/planula" or some free-swimming medusa stages may get moved around this way.

I remember teaching the so-called reverse life cycle of Turritopsis: a medusa reverts to polyp stage. This gave rise to the immortal moniker.
 
jim mcnamara said:
I do not know. Google scholar does not have much. BTW:

How/where did find this? When you cite something it helps us to help you if you can give a reasonable citation. A lot of Cnidaria species in the "larval/planula" or some free-swimming medusa stages may get moved around this way.

I remember teaching the so-called reverse life cycle of Turritopsis: a medusa reverts to polyp stage. This gave rise to the immortal moniker.
I found the information at https://en.wikipedia.org/wiki/Turritopsis_dohrnii#Distribution_and_range
I want to know by how much they have spread, where.
 
Dr Maria Pia Miglietta -> (Penn State) Huck Institute is the author of a talk on the subject. There are no papers I found. And the species is T. nutricola not
T. durnii.

She is at TAMU now: http://www.tamug.edu/miglietta/
Her email is on the profile page. If you contact her, please explain clearly what you want, and how you found her. And if at all possible she will give you some help. There may be no current data.

Is this idle curiosity or are you doing some original research or a thesis paper? If research let her know your affiliation, too.
 

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