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the entire colony to traverse higher in the water column; the inverse is also the case. In addition to assisting in prey location, pneumatophores are integral in the survival of the entire colony, because if water conditions became less optimal due to pH fluctuation, temperature variations or anoxic water zones, the colony is capable of evacuating out of the area.
339:
is facilitated by the presence of a pneumatophore, a regulating air-float that allows the colony to displace itself both above and below the pycnocline depending on prey availability and ocean conditions. Expanding the air-float increases buoyancy in the water, producing a steep enough contrast for
298:
spp. have been classified as having a
Physonectae body plan, containing a pneumatophore towards the surface of the colony, and a nectosome towards the base. Individual zooids orientated in either polyp or medusae forms, such as gastrozooids and nectophores (medusae). The orientation of these zooids
438:
which had coiled itself into a spiral form. The outer "ring" was estimated to be 47 meters (154 feet) long, with an estimated total length of 119 meters (390 feet). This would make it longer than any other animal on the planet, if one includes colonial animals, although individuals of the
360:
are colonial organisms and exhibit a high level of communication. Smaller zooids are concentrated at the front of the organisms and are responsible for minute movements such as turning. The larger zooids are located at the back and are responsible for the bulk of the forward momentum.
281:
are carnivorous invertebrates, which have been documented to feed on small fish, crustaceans, copepods, other plankton, and even other siphonophores. They do so by extending long, curtain-like nematocyst rows into the water column, for prey to become paralyzed.
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found in 2020, measuring approximately 119 metres, was found coiled in a unique, spiraled shape, increasing the surface area covered in the pycnocline and increasing the potential of trapping prey.
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abandon the hunting, motile lifestyle for a more sessile, ambush lifestyle, where the coils of threadlike tubes can be most efficiently extended to entrap and incapacitate prey. The newsworthy
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differs to achieve optimal function within the colony, serving a role in locomotion, propulsion, feeding, and defense. Most
Physonectae are described as jellyfish-shaped, though
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Despite appearing to be a single multicellular organism, they are actually a floating colony of polyps and medusoids, collectively known as
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proves to be an exception in this instance, aligned more laterally than rounded, such as conventional jellyfish.
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rely on nematocyst rows to inject toxins and incapacitate prey for the colony to feed. As the
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System der
Acalephen. Eine ausführliche Beschreibung aller medusenartigen Strahlthiere
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585:"Watch This Giant, Eerie, String-Like Sea Creature Hunt for Food in the Indian Ocean"
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In 2020 researchers working off the coast of
Western Australia came across an
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grow, and chance of the colony splitting increases, movements are reduced and
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off the coast of Europe. It was displaying a net-like feeding pattern in the
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559:"What The Heck Is This Long, Hypnotic Stringy Thing Floating in The Ocean?"
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utilize nectophores by producing jet-like propulsion by excreting water.
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252:, was first documented in 1815 with the discovery and description of
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270:. Few species have been well-defined within the genus otherwise.
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The following species are classified within the genus
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248:, named by Baltic-German physician and naturalist
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352:is facilitated by the presence of nectophores.
258:(the "string jellyfish"), by French naturalist
1135:Taxa named by Johann Friedrich von Eschscholtz
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609:The Guinness Book of Animal Facts and Feats
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1101:
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471:. Berlin: Ferdinand Dümmler. p. 143.
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404:Siebert, Pugh, Haddock & Dunn, 2013
394:Siebert, Pugh, Haddock & Dunn, 2013
14:
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266:, and was documented to have rows of
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1001:7106c042-d38d-438b-96a9-33b3d2e42307
821:EF12D951-1FF4-4AC0-8FC2-13B0D67DECFC
795:3F6387A9-FF43-E2E7-85D8-FF6FDF7B64F9
769:4f3f9ad4-9f05-4a9d-988b-fe300d787178
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447:) are known to be nearly as large.
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25:
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537:World Register of Marine Species
503:World Register of Marine Species
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311:Predatory siphonophores such as
250:Johann Friedrich von Eschscholtz
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335:Vertical displacement for the
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221:. It is the only genus in the
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1:
450:
343:
1073:. You can help Knowledge by
348:Horizontal displacement for
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239:
7:
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495:"Apolemiidae Huxley, 1859"
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364:
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1130:Bioluminescent cnidarians
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523:Schuchert P, ed. (2022).
493:Schuchert P, ed. (2022).
467:Eschscholtz, Fr. (1829).
260:Charles Alexandre Lesueur
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61:Scientific classification
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41:
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533:World Hydrozoa database
499:World Hydrozoa database
477:10.5962/bhl.title.64070
290:Siphonophores, such as
1069:-related article is a
557:Koumoundouros, Tessa.
441:lion's mane jellyfish
589:Smithsonian Magazine
27:Family of cnidarians
1140:Siphonophorae stubs
424:(Stepanjants, 1967)
400:Apolemia rubriversa
529:Eschscholtz, 1829"
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1009:Open Tree of Life
777:Open Tree of Life
631:Taxon identifiers
617:978-0-85112-235-9
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379:Apolemia contorta
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195:Stepanjants, 1967
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16:(Redirected from
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414:(Lesueur, 1815)
410:Apolemia uvaria
390:Apolemia lanosa
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563:ScienceAlert
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1120:Apolemiidae
934:iNaturalist
877:Apolemiidae
863:Apolemiidae
857:Wikispecies
833:Apolemiidae
702:iNaturalist
542:16 November
508:16 November
307:Nematocysts
268:nematocysts
227:Apolemiidae
162:Eschscholtz
138:Apolemiidae
128:Physonectae
18:Apolemiidae
1114:Categories
594:2021-01-27
451:References
344:Nectophore
244:The genus
124:Suborder:
654:Q18520770
286:Body plan
240:Discovery
223:monotypic
176:See text
84:Kingdom:
78:Eukaryota
884:BioLib:
848:Q3620683
842:Wikidata
648:Wikidata
639:Apolemia
527:Apolemia
436:Apolemia
371:Apolemia
358:Apolemia
354:Apolemia
350:Apolemia
337:Apolemia
325:Apolemia
321:Apolemia
317:Apolemia
313:Apolemia
301:Apolemia
296:Apolemia
292:Apolemia
279:Apolemia
246:Apolemia
214:Apolemia
200:Tottonia
183:Synonyms
170:Species
156:Apolemia
134:Family:
108:Hydrozoa
98:Cnidaria
94:Phylum:
88:Animalia
74:Domain:
36:Apolemia
1024:7195895
816:ZooBank
720:1371043
694:2264902
611:(1983)
568:May 26,
430:Notable
365:Species
274:Feeding
225:family
192:Ramosia
151:Genus:
114:Order:
104:Class:
1037:135345
1021:uBio:
1014:536356
998:NZOR:
991:316168
965:718955
952:108396
939:510785
808:135393
782:536355
766:NZOR:
759:316169
707:510784
615:
382:sensu
234:zooids
164:, 1829
145:, 1859
143:Huxley
1065:This
1032:WoRMS
947:IRMNG
913:7NFYM
900:24335
887:43621
803:WoRMS
790:Plazi
733:51421
715:IRMNG
681:7NPFH
668:24336
1071:stub
986:NCBI
960:ITIS
926:3937
921:GBIF
895:BOLD
754:NCBI
728:ITIS
689:GBIF
663:BOLD
613:ISBN
570:2020
544:2022
510:2022
973:NBN
908:CoL
872:ADW
741:NBN
676:CoL
473:doi
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443:(
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