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1

Parra-Rincón, Ernesto, Cristian A. Velandia-Huerto, Adriaan Gittenberger, et al. "The Genome of the “Sea Vomit” Didemnum vexillum." Life 11, no. 12 (2021): 1377. http://dx.doi.org/10.3390/life11121377.

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Tunicates are the sister group of vertebrates and thus occupy a key position for investigations into vertebrate innovations as well as into the consequences of the vertebrate-specific genome duplications. Nevertheless, tunicate genomes have not been studied extensively in the past, and comparative studies of tunicate genomes have remained scarce. The carpet sea squirt Didemnum vexillum, commonly known as “sea vomit”, is a colonial tunicate considered an invasive species with substantial ecological and economical risk. We report the assembly of the D. vexillum genome using a hybrid approach tha
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2

Zeng, Liyun, and Billie J. Swalla. "Molecular phylogeny of the protochordates: chordate evolution." Canadian Journal of Zoology 83, no. 1 (2005): 24–33. http://dx.doi.org/10.1139/z05-010.

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The deuterostomes are a monophyletic group of multicellular animals that include the Chordata, a phylum that exhibits a unique body plan within the metazoans. Deuterostomes classically contained three phyla, Echinodermata, Hemichordata, and Chordata. Protochordata describes two invertebrate chordate subphyla, the Tunicata (Urochordata) and the Cephalochordata. Tunicate species are key to understanding chordate origins, as they have tadpole larvae with a chordate body plan. However, molecular phylogenies show only weak support for the Tunicata as the sister-group to the rest of the chordates, s
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3

Moiseeva, E., C. Rabinowitz, I. Yankelevich, and B. Rinkevich. "'Cup cell disease' in the colonial tunicate Botryllus schlosseri." Diseases of Aquatic Organisms 60 (2004): 77–84. http://dx.doi.org/10.3354/dao060077.

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4

Auker, Linda A., and Candace A. Oviatt. "Factors influencing the recruitment and abundance of Didemnum in Narragansett Bay, Rhode Island." ICES Journal of Marine Science 65, no. 5 (2008): 765–69. http://dx.doi.org/10.1093/icesjms/fsm196.

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Abstract Auker, L. A., and Oviatt, C. A. 2008. Factors influencing the recruitment and abundance of Didemnum in Narragansett Bay, Rhode Island. – ICES Journal of Marine Science, 65: 765–769. The non-indigenous colonial tunicate Didemnum sp. A has been observed in Narragansett Bay, Rhode Island, since 2000. We compared weekly recruitment of the species and environmental parameters (i.e. temperature, salinity, chlorophyll a, dissolved oxygen, pH, and nutrient concentrations) over a 6-month period among three sites: (i) the University of Rhode Island Graduate School of Oceanography dock (GSO), (i
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5

Miao, Shichang, and Raymond J. Andersen. "Rubrolides A-H, metabolites of the colonial tunicate Ritterella rubra." Journal of Organic Chemistry 56, no. 22 (1991): 6275–80. http://dx.doi.org/10.1021/jo00022a012.

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6

Cohen, C. Sarah, Linda McCann, Tammy Davis, Linda Shaw, and Gregory Ruiz. "Discovery and significance of the colonial tunicate Didemnum vexillum in Alaska." Aquatic Invasions 6, no. 3 (2011): 263–71. http://dx.doi.org/10.3391/ai.2011.6.3.03.

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7

Kim, Hiyoung, Tae Gu Lee, Inho Yang, et al. "Antibacterial Bicyclic Fatty Acids from a Korean Colonial Tunicate Didemnum sp." Marine Drugs 19, no. 9 (2021): 521. http://dx.doi.org/10.3390/md19090521.

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Five new bicyclic carboxylic acids were obtained by antibacterial activity-guided isolation from a Korean colonial tunicate Didemnum sp. Their structures were elucidated by the interpretation of NMR, MS and CD spectroscopic data. They all belong to the class of aplidic acids. Three of them were amide derivatives (1–3), and the other two were dicarboxylic derivatives (4 and 5). The absolute configurations were determined by a bisignate pattern of CD spectroscopy, which revealed that the absolute configurations of amides were opposite to those of dicarboxylates at every stereogenic centers. Comp
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8

Rinkevich, B., and I. L. Weissman. "3.5 Some genetic aspects of chimera resorption in a colonial tunicate." Developmental & Comparative Immunology 13, no. 4 (1989): 376. http://dx.doi.org/10.1016/0145-305x(89)90084-0.

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9

Long, Holly A., and Edwin D. Grosholz. "Overgrowth of eelgrass by the invasive colonial tunicate Didemnum vexillum : Consequences for tunicate and eelgrass growth and epifauna abundance." Journal of Experimental Marine Biology and Ecology 473 (December 2015): 188–94. http://dx.doi.org/10.1016/j.jembe.2015.08.014.

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10

Stach, Thomas, and Andreas Kirbach. "Larval convergence in a colonial tunicate: the organization of the sarcotubular complex in Ecteinascidia turbinata (Perophoridae, Phlebobranchiata, Tunicata, Chordata)." Zoomorphology 128, no. 1 (2008): 1–11. http://dx.doi.org/10.1007/s00435-008-0069-1.

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11

Stach, Thomas, and Andreas Kirbach. "Larval convergence in a colonial tunicate: the organization of the sarcotubular complex in Ecteinascidia turbinata (Perophoridae, Phlebobranchiata, Tunicata, Chordata)." Zoomorphology 128, no. 2 (2009): 197–98. http://dx.doi.org/10.1007/s00435-008-0083-3.

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12

Batista, Pedro Jatai, Genoveffa Nuzzo, Carmela Gallo, et al. "Chemical and Pharmacological Prospection of the Ascidian Cystodytes dellechiajei." Marine Drugs 22, no. 2 (2024): 75. http://dx.doi.org/10.3390/md22020075.

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Marine invertebrates are a traditional source of natural products with relevant biological properties. Tunicates are soft-bodied, solitary or colonial, sessile organisms that provide compounds unique in their structure and activity. The aim of this work was to investigate the chemical composition of the ascidian Cystodytes dellechiajei, selected on the basis of a positive result in biological screening for ligands of relevant receptors of the innate immune system, including TLR2, TLR4, dectin-1b, and TREM2. Bioassay-guided screening of this tunicate extract yielded two known pyridoacridine alk
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13

Franchi, Nicola, Francesca Ballin, Lucia Manni, Filippo Schiavon, and Loriano Ballarin. "Data on four apoptosis-related genes in the colonial tunicate Botryllus schlosseri." Data in Brief 8 (September 2016): 142–52. http://dx.doi.org/10.1016/j.dib.2016.05.017.

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14

Cotelle, N., S. Moreau, J. L. Bernier, J. P. Catteau, and J. P. Hénichart. "Antioxidant properties of natural hydroquinones from the marine colonial tunicate aplidium californicum." Free Radical Biology and Medicine 11, no. 1 (1991): 63–68. http://dx.doi.org/10.1016/0891-5849(91)90188-9.

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15

Pancer, Z., H. Gershon, and B. Rinkevich. "Direct Typing of Polymorphic Microsatellites in the Colonial Tunicate Botryllus schlosseri (Ascidiacea)." Biochemical and Biophysical Research Communications 203, no. 1 (1994): 646–51. http://dx.doi.org/10.1006/bbrc.1994.2231.

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16

Ferguson, Louis, Thomas Landry, Thomas Therriault, and Jeff Davidson. "Effectiveness of a neutral red viability protocol developed for two colonial tunicate species." Management of Biological Invasions 7, no. 2 (2016): 181–87. http://dx.doi.org/10.3391/mbi.2016.7.2.05.

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17

Kawamura, Kazuo, Sae Takeoka, Show Takahashi, and Takeshi Sunanaga. "In VitroCulture of Mesenchymal Lineage Cells Established from the Colonial Tunicate Botryllus primigenus." Zoological Science 23, no. 3 (2006): 245–54. http://dx.doi.org/10.2108/zsj.23.245.

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18

Paetzold, Christine, Donna Giberson, Jonathan Hill, John Davidson, and Jeff Davidson. "Effect of colonial tunicate presence on Ciona intestinalis recruitment within a mussel farming environment." Management of Biological Invasions 3, no. 1 (2012): 15–23. http://dx.doi.org/10.3391/mbi.2012.3.1.02.

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19

Bao, Baoquan, Hung The Dang, Ping Zhang та ін. "Bicyclic α,ω-dicarboxylic acid derivatives from a colonial tunicate of the family Polyclinidae". Bioorganic & Medicinal Chemistry Letters 19, № 21 (2009): 6205–8. http://dx.doi.org/10.1016/j.bmcl.2009.08.094.

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20

Rinkevich, Baruch, and Claudette Rabinowitz. "Initiation of epithelial cell cultures from palleal buds of Botryllus schlosseri, a colonial tunicate." In Vitro Cellular & Developmental Biology - Animal 33, no. 6 (1997): 422–24. http://dx.doi.org/10.1007/s11626-997-0058-6.

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21

Ben-Hamo, Oshrat, Amalia Rosner, Claudette Rabinowitz, Matan Oren, and Baruch Rinkevich. "Coupling astogenic aging in the colonial tunicate Botryllus schlosseri with the stress protein mortalin." Developmental Biology 433, no. 1 (2018): 33–46. http://dx.doi.org/10.1016/j.ydbio.2017.10.023.

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22

Manni, Lucia, Chiara Anselmi, Francesca Cima, et al. "Sixty years of experimental studies on the blastogenesis of the colonial tunicate Botryllus schlosseri." Developmental Biology 448, no. 2 (2019): 293–308. http://dx.doi.org/10.1016/j.ydbio.2018.09.009.

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23

Littler, M. M., and D. S. Littler. "A colonial tunicate smothers corals and coralline algae on the Great Astrolabe Reef, Fiji." Coral Reefs 14, no. 3 (1995): 148–49. http://dx.doi.org/10.1007/bf00367232.

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24

Weissman, Irving L. "Stem cells are units of natural selection for tissue formation, for germline development, and in cancer development." Proceedings of the National Academy of Sciences 112, no. 29 (2015): 8922–28. http://dx.doi.org/10.1073/pnas.1505464112.

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It is obvious that natural selection operates at the level of individuals and collections of individuals. Nearly two decades ago we showed that in multi-individual colonies of protochordate colonial tunicates sharing a blood circulation, there exists an exchange of somatic stem cells and germline stem cells, resulting in somatic chimeras and stem cell competitions for gonadal niches. Stem cells are unlike other cells in the body in that they alone self-renew, so that they form clones that are perpetuated for the life of the organism. Stem cell competitions have allowed the emergence of competi
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25

Ishii, Teruhisa, Euichi Hirose, and Yasuho Taneda. "Tunic Phagocytes Are Involved in Allorejection Reaction in the Colonial Tunicate Aplidium yamazii (Polyclinidae, Ascidiacea)." Biological Bulletin 214, no. 2 (2008): 145–52. http://dx.doi.org/10.2307/25066671.

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26

Pyo, Joo-Yeon, and Sook Shin. "A New Record of Invasive Alien Colonial Tunicate Clavelina lepadiformis (Ascidiacea: Aplousobranchia: Clavelinidae) in Korea." Animal Systematics, Evolution and Diversity 27, no. 2 (2011): 197–200. http://dx.doi.org/10.5635/kjsz.2011.27.2.197.

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27

Rabinowitz, C. "In vitro delayed senescence of extirpated buds from zooids of the colonial tunicate Botryllus schlosseri." Journal of Experimental Biology 207, no. 9 (2004): 1523–32. http://dx.doi.org/10.1242/jeb.00899.

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28

Myers, Philip E. "Space versus other limiting resources for a colonial tunicate, Botrylloides leachii (Savigny), on fouling plates." Journal of Experimental Marine Biology and Ecology 141, no. 1 (1990): 47–52. http://dx.doi.org/10.1016/0022-0981(90)90156-7.

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29

Paetzold, Christine, Jonathan Hill, and Jeff Davidson. "Efficacy of high-pressure seawater spray against colonial tunicate fouling in mussel aquaculture: inter-annual variation." Aquatic Invasions 7, no. 4 (2012): 555–66. http://dx.doi.org/10.3391/ai.2012.7.4.012.

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30

ELOLA, M. T., and G. R. VASTA. "Lectins from the Colonial Tunicate Clavelina picta Are Structurally Related to Acute-Phase Reactants from Vertebrates." Annals of the New York Academy of Sciences 712, no. 1 Primordial Im (1994): 321–23. http://dx.doi.org/10.1111/j.1749-6632.1994.tb33583.x.

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31

Osborne, Kristin L., and William A. Hubbard. "Underwater Video Mapping of Benthic Habitats in Buzzards Bay, Massachusetts Records the Pelagic Colonial Pyrosome Tunicate Pyrosoma atlanticum." Northeastern Naturalist 25, no. 3 (2018): N19—N23. http://dx.doi.org/10.1656/045.025.0303.

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32

Carman, Mary, David Grunden, and Danielle Ewart. "Coldwater reattachment of colonial tunicate Didemnum vexillum fragments to natural (eelgrass) and artificial (plastic) substrates in New England." Aquatic Invasions 9, no. 1 (2014): 105–10. http://dx.doi.org/10.3391/ai.2014.9.1.09.

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33

Kawamura, Kaz, and Takeshi Sunanaga. "Role of Vasa, Piwi, and Myc-expressing coelomic cells in gonad regeneration of the colonial tunicate, Botryllus primigenus." Mechanisms of Development 128, no. 7-10 (2011): 457–70. http://dx.doi.org/10.1016/j.mod.2011.09.001.

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34

Nicola, Franchi, and Ballarin Loriano. "Morula cells as key hemocytes of the lectin pathway of complement activation in the colonial tunicate Botryllus schlosseri." Fish & Shellfish Immunology 63 (April 2017): 157–64. http://dx.doi.org/10.1016/j.fsi.2017.02.003.

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35

Franchi, Nicola, and Loriano Ballarin. "Preliminary characterization of complement in a colonial tunicate: C3, Bf and inhibition of C3 opsonic activity by compstatin." Developmental & Comparative Immunology 46, no. 2 (2014): 430–38. http://dx.doi.org/10.1016/j.dci.2014.05.014.

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36

Morris, James A., and Mary R. Carman. "Fragment reattachment, reproductive status, and health indicators of the invasive colonial tunicate Didemnum vexillum with implications for dispersal." Biological Invasions 14, no. 10 (2012): 2133–40. http://dx.doi.org/10.1007/s10530-012-0219-8.

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37

Topić Popović, Natalija, Bojan Hamer, Ivančica Strunjak-Perović, et al. "Biological, Biochemical and Elemental Traits of Clavelina oblonga, an Invasive Tunicate in the Adriatic Sea." Animals 15, no. 10 (2025): 1371. https://doi.org/10.3390/ani15101371.

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Clavelina oblonga is an invasive tropical tunicate recently introduced into the Adriatic Sea as a consequence of globalization and climate change. Mussel aquaculture sites provide an ideal environment for this colonial ascidian, where it has recently become the dominant fouling species. This study represents the first investigation of its biological and physical characteristics, as well as its proximal, fatty acid, macroelement, trace element, and toxic metal composition. The entire-tissue chemical composition of C. oblonga resulted in 95.44% moisture. Its composite structure revealed several
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38

Nydam, Marie L. "Evolution of Allorecognition in the Tunicata." Biology 9, no. 6 (2020): 129. http://dx.doi.org/10.3390/biology9060129.

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Allorecognition, the ability to distinguish self or kin from unrelated conspecifics, plays several important biological roles in invertebrate animals. Two of these roles include negotiating limited benthic space for colonial invertebrates, and inbreeding avoidance through self-incompatibility systems. Subphylum Tunicata (Phylum Chordata), the sister group to the vertebrates, is a promising group in which to study allorecognition. Coloniality has evolved many times independently in the tunicates, and the best known invertebrate self-incompatibility systems are in tunicates. Recent phylogenomic
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39

Anselmi, Chiara, Federico Caicci, Tommaso Bocci, et al. "Multiple Forms of Neural Cell Death in the Cyclical Brain Degeneration of A Colonial Chordate." Cells 12, no. 7 (2023): 1041. http://dx.doi.org/10.3390/cells12071041.

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Human neuronal loss occurs through different cellular mechanisms, mainly studied in vitro. Here, we characterized neuronal death in B. schlosseri, a marine colonial tunicate that shares substantial genomic homology with mammals and has a life history in which controlled neurodegeneration happens simultaneously in the brains of adult zooids during a cyclical phase named takeover. Using an ultrastructural and transcriptomic approach, we described neuronal death forms in adult zooids before and during the takeover phase while comparing adult zooids in takeover with their buds where brains are ref
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40

Harp, J. A., H. C. Boyd, and I. L. Weissman. "The colonial tunicate : I. Blood cell autoreactivity related to colony asexual stage. II. Polymorphic antigens detected by monoclonal antibodies." Developmental & Comparative Immunology 10, no. 1 (1986): 105. http://dx.doi.org/10.1016/0145-305x(86)90068-6.

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41

Goldstein, Oron, Edna Ayerim Mandujano-Tinoco, Tom Levy, et al. "Botryllus schlosseri as a Unique Colonial Chordate Model for the Study and Modulation of Innate Immune Activity." Marine Drugs 19, no. 8 (2021): 454. http://dx.doi.org/10.3390/md19080454.

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Understanding the mechanisms that sustain immunological nonreactivity is essential for maintaining tissue in syngeneic and allogeneic settings, such as transplantation and pregnancy tolerance. While most transplantation rejections occur due to the adaptive immune response, the proinflammatory response of innate immunity is necessary for the activation of adaptive immunity. Botryllus schlosseri, a colonial tunicate, which is the nearest invertebrate group to the vertebrates, is devoid of T- and B-cell-based adaptive immunity. It has unique characteristics that make it a valuable model system fo
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42

Carvalho, Pedro, and Sérgio Bonecker. "Tunicata, Thaliacea, Pyrosomatidae, Pyrosomella verticillata (Neumann, 1909): first record from the southwest Atlantic Ocean." Check List 4, no. (3) (2008): 272–74. https://doi.org/10.15560/4.3.272.

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43

Hoeksema, Bert W., Rosalie F. Timmerman, Roselle Spaargaren, et al. "Morphological Modifications and Injuries of Corals Caused by Symbiotic Feather Duster Worms (Sabellidae) in the Caribbean." Diversity 14, no. 5 (2022): 332. http://dx.doi.org/10.3390/d14050332.

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Some coral-associated invertebrates are known for the negative impact they have on the health of their hosts. During biodiversity surveys on the coral reefs of Curaçao and a study of photo archives of Curaçao, Bonaire, and St. Eustatius, the Caribbean split-crown feather duster worm Anamobaea sp. (Sabellidae) was discovered as an associate of 27 stony coral species (Scleractinia spp. and Millepora spp.). The worm was also found in association with an encrusting octocoral (Erythropodium caribaeorum), a colonial tunicate (Trididemnum solidum), various sponge species, and thallose algae (mainly L
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44

Hoeksema, Bert W., Rosalie F. Timmerman, Roselle Spaargaren, et al. "Morphological Modifications and Injuries of Corals Caused by Symbiotic Feather Duster Worms (Sabellidae) in the Caribbean." Diversity 14, no. 5 (2022): 332. http://dx.doi.org/10.3390/d14050332.

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Some coral-associated invertebrates are known for the negative impact they have on the health of their hosts. During biodiversity surveys on the coral reefs of Curaçao and a study of photo archives of Curaçao, Bonaire, and St. Eustatius, the Caribbean split-crown feather duster worm Anamobaea sp. (Sabellidae) was discovered as an associate of 27 stony coral species (Scleractinia spp. and Millepora spp.). The worm was also found in association with an encrusting octocoral (Erythropodium caribaeorum), a colonial tunicate (Trididemnum solidum), various sponge species, and thallose algae (mainly L
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45

Kassmer, Susannah H., Delany Rodriguez, and Anthony W. De Tomaso. "Evidence that ABC transporter-mediated autocrine export of an eicosanoid signaling molecule enhances germ cell chemotaxis in the colonial tunicate Botryllus schlosseri." Development 147, no. 15 (2020): dev184663. http://dx.doi.org/10.1242/dev.184663.

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46

Teed, Laura, Claire Goodwin, Peter Lawton, Anaïs Lacoursière-Roussel, and Kristin Dinning. "Multiple perspectives on the emergence of the invasive colonial tunicate Didemnum vexillum Kott, 2002 in the western Bay of Fundy, Atlantic Canada." BioInvasions Records 13, no. 3 (2024): 713–38. http://dx.doi.org/10.3391/bir.2024.13.3.12.

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47

CHAVANICH, SUCHANA, NIMMANORADEE KETDECHA, VORANOP VIYAKARN, and SOMCHAI BUSSARAWIT. "Preliminary Surveys of the Commensal Amphipod, Leucothoe Spinicarpa (Abildgaard, 1789), in the colonial tunicate, Ecteinascidia thurstoni Herdman, 1891, in the Andaman Sea, Thailand." Publications of the Seto Marine Biological Laboratory. Special Publication Series. 8 (2007): 97–101. http://dx.doi.org/10.5134/70906.

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48

Qarri, Andy, Yuval Rinkevich, and Baruch Rinkevich. "Employing marine invertebrate cell culture media for isolation and cultivation of thraustochytrids." Botanica Marina 64, no. 6 (2021): 447–54. http://dx.doi.org/10.1515/bot-2021-0035.

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Abstract Thraustochytrids, a common group of marine eukaryotic protists, have drawn considerable scientific and industrial interest due to their ability to synthesize high levels of bioactive compounds, including polyunsaturated fatty acids, docosahexaenoic acid, squalene and carotenoids, and their new applications for biofuels. The pharmaceutical and industrial potential of thraustochytrids necessitate effective isolation of new strains and establishment of axenic cultures. To date, existing isolation protocols have used baiting and direct plating methods to generate axenic cultures with vari
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49

Lyle, Joanna T., Robert K. Cowen, Su Sponaugle, and Kelly R. Sutherland. "Fine-scale vertical distribution and diel migrations of Pyrosoma atlanticum in the northern California Current." Journal of Plankton Research 44, no. 2 (2022): 288–302. http://dx.doi.org/10.1093/plankt/fbac006.

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Abstract Blooms of the colonial pelagic tunicate Pyrosoma atlanticum in 2014–2018 followed a marine heatwave in the eastern Pacific Ocean. Pyrosome blooms could alter pelagic food webs of the northern California Current (NCC) by accelerating the biological pump via active transport, fecal pellet production and mortality events. Although aggregations of P. atlanticum have the potential to shape marine trophic dynamics via carbon export, little is known about pyrosome vertical distribution patterns. In this study, we estimated the distribution of P. atlanticum in the NCC along transects off of O
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50

Kaplan, Katherine A., Deborah R. Hart, Karen Hopkins, et al. "Evaluating the interaction of the invasive tunicate Didemnum vexillum with the Atlantic sea scallop Placopecten magellanicus on open and closed fishing grounds of Georges Bank." ICES Journal of Marine Science 74, no. 9 (2017): 2470–79. http://dx.doi.org/10.1093/icesjms/fsx076.

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Abstract An invasive colonial tunicate (Didemnum vexillum) was initially observed on Georges Bank in 1998, and it has since spread in benthic environments on fishing grounds and areas closed to bottom-fishing. It can form dense mats on gravel substrates that are also a preferred habitat for the Atlantic sea scallop (Placopecten magellanicus), which supports one of the most valuable commercial fisheries in the United States. We used HabCam, a vessel-towed underwater imaging system, to investigate the spatial distributions of P. magellanicus and D. vexillum in a region that includes fishing grou
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