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Olindias phosphorica

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Olindias phosphorica or also known as the “Cigar Jellyfish” is a cnidarian species (class Hydrozoa) found in the central Atlantic originating around the Mediterranean sea. It is known for its bioluminescence ability and its transparent, bell shaped body. [1][2] Not much is known about this species due to the lack of scientific evidence. Other names include: [1]  

Oceania phosphorica delle Chiaje, 1841

Olindias phosphorica (Delle Chiaje, 1841)

Olindias muelleri Graeffe, 1884

Anatomy and Morphology

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Figure 1: This is a simplified anatomy of a class hydrozoa jellyfish.

The anatomy of the species Olindias phosphorica:

The Olindias phosphorica has a small hydromedusa that can reach up to six centimeters in diameter. O. phosphorica possesses tentacles at the base of the medusa. There are two types that can be observed, Primary tentacles and secondary tentacles. The primary tentacles are placed at each radial canal. Primary tentacles are characterized as short, smooth, with a whitish appearance. They are thickened at the tip  into an adhesive knob. The secondary tentacles are in small depressions located at the edge of the medusa. They are extremely long, transparent, and lined with cnidocytes (Stinging cells). [1]  O. phosphorica also possesses 4 main radial canals, a narrow mouth. They possess many centripetal and blind secondary radial canals.

Reproduction

Most Cnidarians can reproduce both sexually and asexually. O. phosphorica can go through the two phases:

O. phosphorica is gonochoric, this means that there is male and female organisms. They typically broadcast spawn in open water. This is where the relation of both eggs and sperm into the water column where gamete contact and fertilize externally.[3] The planula larva produce from this broadcast spawn leafs a short pelagic life during which it swims (they swim due to ciliary covering) amongst the phytoplankton and eventually falls to the substrate where it attaches and grows into a polyp. (If conditions allow) [1]. This polyp buds other polyps (the asexual phase) to produce a benthic colonial stage. Upon reaching maturity the polyp buds a pelagic Medusa that repeats the cycle.[4]

The life cycle of a jellyfish.

Figure 2: This is a simplified image of a Hydrozoa reproduction cycle.

The life cycle of a jellyfish.

Refere to figure 2.

Distribution and Habitat

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The Mediterranean sea is one of the most highly valued seas. It delivers valuable benefits to the coastal inhabitants and coastal plains (which includes the pelagic system). It is enclosed by three continents, Europe, Asia, and Africa. The Mediterranean sea is also linked to energy transportation, nutrient flow, and interactions for the physical environment as a functioning unit.

O. phosphorica are a species that is typically found originating from the central Atlantic ocean, and from the Mediterranean sea.[5] They are typically found in the subtropical pelagic zone.[6]  They are typically observed at shallow depth near the coast or in open water. Due to the transpart medusa it is easier to view at night. The O. phosphorica is more abundant in the summer and autumn time, they are prevalent in warm waters.

Figure 3: This is to get a better visual on to where the Mediterranean sea is located. Most of the Cigar jellyfish population lives amongst here.

Feeding

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O. phosphorica is planktivorous, this diet is carnivorous. The jellyfish extends its tentacles, both primary and secondary, the tentacles are covered in cnidocytes, these stinging cells extend almost like harpoons and paralyze the plankton and then direct it towards the mouth where it is digested. Not much has been studied on O. phosphorica digestion track however it is assumed based on their class that they have a simple gastrovascular system. This system is lined with flagellated cells that circulate the plankton with the filtering of water [7][8]

O. phosphorica secondary tentacles are equipped with stinging cells known as cnidocytes. The main purpose of cnidocytes is to capture prey and as a defense system.[9] The stinging cells are triggered when an outside force provokes it; the cells open up allowing water to rush in. This causes the stinger to shoot out to what provoked it; this is where the venom is released into the victim.  O. phosphorica venom is a mild venom and not considered harmful to humans. There are no reported deaths that are visible to the public search with cigar jellyfish. However just like most stings, if it goes untreated there could be infections that can cause health complications.[10][11]

Taxonomy

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Kingdom                           Animalia

 Subkingdom                  Radiata

    Phylum                         Cnidaria

      Subphylum               Medusozoa

         Class                        Hydrozoa

            Subclass              Trachylina

               Order                 Limnomedusae

                  Family            Olindiidae

                     Genus          Olindias

                        Species     Olindias phosphorica

Olindias phosphorica are amongst the phylum Cnidaria and class of Hydrozoa. The Hydrozoa class is known to contain approximately 3,700 species.[12]It is a very large and diverse class in the Cnidaria phylum. The genus family was named after its genus Olindias Muller in 1861.

Fun Facts about Olindias phosphorica taxa

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  • Figure 4: This is a captured image of the Olindias phosphorica or also known as the cigar jellyfish. In this image you can notice the biolumensce around its exumbrella.
    • Jellyfish are able to use the adhesive structures located at the end of the primary tentacles to hold on to the posidonia leaves and resist the current! [1]
    • Bioluminescence in Olindias phosphorica:
    • Even though there is no direct study done it is hypothesized that Olindias Phosphorica produce bioluminescence on their exumbrella and tentacles with a photoprotein that produces green-blue bioluminescence.[1][13]  This is a unique feature that not all jellyfish have; three classes out of the phylum Cnidaria have bioluminescence, Hydrozoa (which Olindias phosphorica is apart of), Scyohozoa, and Anthozoa.[14]  Bioluminescence is used for a number of uses in marine organisms but the most common uses in the phylum Cnidaria is used as a defense against predators to startle or distract or they use it to lure prey.[15]
    • Even though that hydrozoa have many different types of cells they can only form two types of tissue for there gelatinous bodies, epidermis and gastrodermis.[16]
    • Most Cnidarian groups have both cnidocytes and nematocysts however Hydrozoa is the only class in which the lining of the central cavity lacks the stinging nematocysts. They only have them on the lining of their tentacles! [17][18]

Bibliography

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  • Bardi, J., & Marques, A. C. (2007). Taxonomic redescription of the Portuguese man-of-war, Physalia physalis (Cnidaria, Hydrozoa, Siphonophorae, Cystonectae) from Brazil. Iheringia. Série Zoologia, 97, 425-433[17]
  • Bioluminescence in jellyfish. Reed Bio 342. (n.d.). Retrieved April 18, 2023, from https://www.reed.edu/biology/professors/srenn/pages/teaching/web_2010/mi_site/index.html#:~:text=Bioluminescence%20is%20used%20predominantly%20as,use%20it%20primarily%20for%20defense. [15]
  • Cartwright, P., & Nawrocki, A. M. (2010, July 9). Character evolution in hydrozoa (phylum cnidaria). OUP Academic. Retrieved April 18, 2023, from https://academic.oup.com/icb/article/50/3/456/620784 [4]
  • Class Hydrozoa. Test Page for Apache Installation. (n.d.). Retrieved April 18, 2023, from http://jupiter.plymouth.edu/~lts/invertebrates/primer/text/hydrozoa.html#:~:text=Though%20these%20organisms%20feed%20on,with%20the%20filtering%20of%20water.[8]
  • Gamete plasticity in a broadcast spawning marine invertebrate | PNAS. (n.d.). Retrieved April 18, 2023, from https://www.pnas.org/doi/10.1073/pnas.0806590105 [3]
  • Hammond, G. (n.d.). Hydrozoa. Animal Diversity Web. Retrieved April 18, 2023, from https://animaldiversity.org/accounts/Hydrozoa/#:~:text=The%20Hydrozoa%20is%20a%20subgroup,growth%20forms%2C%20and%20specialized%20structures. [12]
  • Jellyfish Stings. UF Health, University of Florida Health. (2021, July 28). Retrieved April 18, 2023, from https://ufhealth.org/jellyfish-stings[10]  
  • Lenhoff, Howard M. and Loomis, Farnsworth W. 1961. The Biology of Hydra and Some Other Coelenterates. Florida: Univ. of Miami Press. [7]
  • Lukyanov, O. S. K. A., Shimomura, O., Laboratory, M. B., And, Lukyanov, K. A., & Chemistry, S. O. I. of B. (n.d.). Chapter 4: The Jellyfish Aequorea and other luminous coelenterates. World Scientific. Retrieved April 18, 2023, from https://www.worldscientific.com/doi/10.1142/9789813277113_0005 [14]
  • Mills, C. E., & Goy, J. (1988, November 1). In situ observations of the behavior of mesopelagic solmissus narcomedusae (Cnidaria, Hydrozoa). Latest TOC RSS. Retrieved April 18, 2023, from https://www.ingentaconnect.com/content/umrsmas/bullmar/1988/00000043/00000003/art00030 [2]
  • Olindias. DORIS. (n.d.). Retrieved April 18, 2023, from https://doris.ffessm.fr/Especes/Olindias-muelleri-Olindias-784  [1]
  • Olindias phosphorica   (Delle Chiaje, 1841). Olindias phosphorica, Cigar jellyfish. (n.d.). Retrieved April 18, 2023, from https://www.sealifebase.se/country/CountrySpe [6]
  • Olindias phosphorica Medusa Cigar Jellyfish intotheblue.it. (n.d.). Retrieved April 18, 2023, from https://www.intotheblue.link/en_GB/2019/08/13/cigar-jellyfish-olindias-phosphorica-2/ [5]
  • Otten EJ. Venomous animal injuries. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 55.[11]
  • Shimomura, O., & Johnson, F. H. (1975). Chemical nature of bioluminescence systems in coelenterates. Proceedings of the National Academy of Sciences of the United States of America, 72(4), 1546–1549. https://doi.org/10.1073/pnas.72.4.1546 [13]
  • Tardent - Wiley Online Library. (n.d.). Retrieved April 18, 2023, from https://onlinelibrary.wiley.com/doi/abs/10.1002/bies.950170411[9]
  • Wikimedia Foundation. (2023, April 3). Hydrozoa. Wikipedia. Retrieved April 18, 2023, from https://en.wikipedia.org/wiki/Hydrozoa#:~:text=Unlike%20some%20other%20cnidarian%20groups,some%20polyps%20specialized%20for%20reproduction. [18]

References.

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  1. ^ a b c d e f g Ziemski, Frédéric (11/30/2021). "Olindias muelleri". Doris. Retrieved 04/18/2023. {{cite web}}: Check date values in: |access-date= and |date= (help)
  2. ^ a b Mills, Claudia E.; Goy, Jacqueline (1988-11-01). "In Situ Observations of the Behavior of Mesopelagic Solmissus Narcomedusae (Cnidaria, Hydrozoa)". Bulletin of Marine Science. 43 (3): 739–751.
  3. ^ a b Crean, Angela J.; Marshall, Dustin J. (11/9/2008). "Gamete plasticity in a broadcast spawning marine invertebrate". pp. 13508–13513. doi:10..1073. Retrieved 04/18/2023. {{cite web}}: Check |doi= value (help); Check date values in: |access-date= and |date= (help)
  4. ^ a b academic.oup.com https://academic.oup.com/icb/article/50/3/456/620784. Retrieved 2023-04-19. {{cite web}}: Missing or empty |title= (help)
  5. ^ a b Cirivasi, Andrea (2019-08-13), Cigar jellyfish - Olindias phosphorica, retrieved 2023-04-19
  6. ^ a b "Olindias phosphorica, Cigar jellyfish". www.sealifebase.se. Retrieved 2023-04-19.
  7. ^ a b Lenhoff, Howard M.; Loomis, W. Farnsworth (1961). The biology of hydra and of some other coelenterates, 1961. Coral Gables, Fla: University of Miami Press.
  8. ^ a b jupiter.plymouth.edu http://jupiter.plymouth.edu/~lts/invertebrates/primer/text/hydrozoa.html#:~:text=Though%20these%20organisms%20feed%20on,with%20the%20filtering%20of%20water. Retrieved 2023-04-19. {{cite web}}: Missing or empty |title= (help)
  9. ^ a b Tardent, Pierre (1995-04). "The cnidarian cnidocyte, a hightech cellular weaponry". BioEssays. 17 (4): 351–362. doi:10.1002/bies.950170411. ISSN 0265-9247. {{cite journal}}: Check date values in: |date= (help)
  10. ^ a b "Jellyfish stings". UF Health, University of Florida Health. 2012-01-04. Retrieved 2023-04-19.
  11. ^ a b Otten, EJ (2018). "Venomous animal injuries. In: Walls RM, Hockberger RS, Gausche-Hill M, eds". mergency Medicine: Concepts and Clinical Practice. 9.
  12. ^ a b Hammond, George. "Hydrozoa". Animal Diversity Web. Retrieved 2023-04-19.
  13. ^ a b Shimomura, O; Johnson, F H (1975-04). "Chemical nature of bioluminescence systems in coelenterates". Proceedings of the National Academy of Sciences. 72 (4): 1546–1549. doi:10.1073/pnas.72.4.1546. ISSN 0027-8424. PMC 432574. PMID 236561. {{cite journal}}: Check date values in: |date= (help)CS1 maint: PMC format (link)
  14. ^ a b Shimomura, Osamu; Lukyanov, Konstantin A. (2018-09-06), "The Jellyfish Aequorea and Other Luminous Coelenterates", Bioluminescence, WORLD SCIENTIFIC, pp. 95–175, doi:10.1142/9789813277113_0005, ISBN 978-981-327-710-6, retrieved 2023-04-19
  15. ^ a b "Reed Bio 342". www.reed.edu. Retrieved 2023-04-19.
  16. ^ "Jellyfish stings". UF Health, University of Florida Health. 2012-01-04. Retrieved 2023-04-19.
  17. ^ a b Bardi, J.; Marques, A. (2007). "Taxonomic redescription of the Portuguese man-of-war, Physalia physalis (Cnidaria, Hydrozoa, Siphonophorae, Cystonectae) from Brazil". Iheringia. Série Zoologia. 97: 425–433.
  18. ^ a b "Hydrozoa", Wikipedia, 2023-04-03, retrieved 2023-04-19
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