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2005 California Academy of Sciences
CalPhotos
This actually is a colonial filter feeding animal, though the individuals are borne in separate tubes of tunic. The 'filaments' of the light-bulbs form a groove in the wall of the pharynx, the endostyle. Here iodine is extracted from sea water to form a compound akin to thyroxin. Larvae are brooded at the base of each light-bulb.
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2015 California Academy of Sciences
CalPhotos
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2006 California Academy of Sciences
CalPhotos
Depth 15 m.
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2005 California Academy of Sciences
CalPhotos
A common solitary ascidian in the Indo-Pacific.
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2005 California Academy of Sciences
CalPhotos
This is the cloned, sexual phase of a pelagic tunicate. The individuals, each a sequential hermaphrodite, lie in a double chain oriented back to back. Eventually the chain will break apart and each individual will sexually produce an asexual solitary salp. Inconceivably large numbers of aggregate salps can cover hundreds of square miles of ocean.
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Slo.: nena logarica, Cr.: njena kockavica, vitka kockavica - ., syn.: Fritillaria messanensis subsp. gracilis (Ebel) Rix, Lilium gracile Ebel., Fritilaria neglecta Parl. - Habitat: open stony grassland but also in light Fagus sylvatica forest, calcareous, Karst, humus-rich rendzina soil ground with frequently outcropped carbonate rock, partly sunny, exposed to direct rain, average precipitations about 2.000 mm/year, average temperature 5-7 deg C, elevation 920 (3.020 feet), mountain submediterranean/Dinaric phytogeographical region. - Substratum: soil - Comment: Members of Fritilaria genus are all very tender and beautiful plants with large bell shaped flowers. Only two of them Fritillaria meleagris and Fritilaria orientalis grow in Slovenia and both are rare, endangered and protected. The same is true for Fritilaria gracilis, which unfortunately doesn't appear in my country but south of it in west Balkan peninsula Dinaric mountains (Orjen, Velebit, Prokletije). Endemic to coastal mountains of Croatia, Bosnia, Montenegro and north Albania it appears nowhere else in the world. - Enlisted in the Croatian Red book of rare and endangered species, marked by 'VU' representing a sensitive species. - Ref.: (1) . ili, Endemine biljke (Endemic plants), Svjetlost, Sarajevo (1984) (in Serbo-Croatian), p164. (2) http://www.academia.edu/4055930/Soziologie_und_standortbedingte_Verbreitung_tannenreicher_W%C3%A4lder_im_Orjen_Gebirge_Montenegro_ (3) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (1999) (in Slovene), p 654. (4) http://hirc.botanic.hr/fcd/DetaljiFrame.aspx?IdVrste=27263&taxon=Fritillaria+messanensis+Raf.+ssp.+gracilis+%28Ebel%29+Rix
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Slo.: nena logarica, Cr.: njena kockavica, vitka kockavica - ., syn.: Fritillaria messanensis subsp. gracilis (Ebel) Rix, Lilium gracile Ebel., Fritilaria neglecta Parl. - Habitat: open stony grassland but also in light Fagus sylvatica forest, calcareous, Karst, humus-rich rendzina soil ground with frequently outcropped carbonate rock, partly sunny, exposed to direct rain, average precipitations about 2.000 mm/year, average temperature 5-7 deg C, elevation 920 (3.020 feet), mountain submediterranean/Dinaric phytogeographical region. - Substratum: soil - Comment: Members of Fritilaria genus are all very tender and beautiful plants with large bell shaped flowers. Only two of them Fritillaria meleagris and Fritilaria orientalis grow in Slovenia and both are rare, endangered and protected. The same is true for Fritilaria gracilis, which unfortunately doesn't appear in my country but south of it in west Balkan peninsula Dinaric mountains (Orjen, Velebit, Prokletije). Endemic to coastal mountains of Croatia, Bosnia, Montenegro and north Albania it appears nowhere else in the world. - Enlisted in the Croatian Red book of rare and endangered species, marked by 'VU' representing a sensitive species. - Ref.: (1) . ili, Endemine biljke (Endemic plants), Svjetlost, Sarajevo (1984) (in Serbo-Croatian), p164. (2) http://www.academia.edu/4055930/Soziologie_und_standortbedingte_Verbreitung_tannenreicher_W%C3%A4lder_im_Orjen_Gebirge_Montenegro_ (3) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (1999) (in Slovene), p 654. (4) http://hirc.botanic.hr/fcd/DetaljiFrame.aspx?IdVrste=27263&taxon=Fritillaria+messanensis+Raf.+ssp.+gracilis+%28Ebel%29+Rix
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2005 California Academy of Sciences
CalPhotos
During the season of upwelling these pelagic tunicates, salps, may be swept into the outer bay filtering plankton as they swim. Tunicates, our cousins, are in the Phylum Chordata. This is the solitary phase; the ropelike chain is the cloned, sexual, aggregate phase that later will be extruded, often several hundred individuals.
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2006 California Academy of Sciences
CalPhotos
Depth 12 m. Height about 4 cm. These solitary tunicates are broadcast spawners.
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2005 California Academy of Sciences
CalPhotos
In the Fall when this colony was photographed most tadpole larvae already have been released. Photographed at 20 m depth.
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2005 California Academy of Sciences
CalPhotos
These solitary tunicates characteristically are borne on a slender stalk of about 3 cm and armed with spicules. Fertilization of these hermaphrodites is external. Depth 13 m.
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1999 California Academy of Sciences
CalPhotos
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1999 California Academy of Sciences
CalPhotos
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2005 California Academy of Sciences
CalPhotos
These colonial tunicates harbor symbiotic, prokaryotic algae which account for the bright green color. The tunicates are accompanied by a species of red tunicate.
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2005 California Academy of Sciences
CalPhotos
Each individual in this colony lives for about seven days and then dies by 'programmed cell death.' Here new individuals are being budded off lateral to the smaller senescent ones.
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2005 California Academy of Sciences
CalPhotos
Adjacent Botryllus colonies will fuse if they share one allele of a common 'fusibility gene.' Here, lacking such an allele, the colonies recognize each other as non-self and rejection occurs in a reaction analogous to human organ rejection following transplantation. Field of view 15 mm.
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Photographed in the seagrass bed
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2006 California Academy of Sciences
CalPhotos
Depth 14 m.
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2005 California Academy of Sciences
CalPhotos
As with other colonial tunicates, the smaller pores are the filter feeder's intake pores; several of them share the larger excurrent pores. The tunicate's tadpole larvae may spend from a few minutes to several hours in the plankton before metamorphosis. Depth 16 m.
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2005 California Academy of Sciences
CalPhotos
This filter-feeding colonial animal is a chordate--it's in the same phylum we are. The tiny apertures are intake pores; several of them share the larger common excurrent pores. The animals are hermaphroditic; they reproduce sexually with typical tunicate tadpole larvae. 12 m deep.
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2000 California Academy of Sciences
CalPhotos
found in Monterey Bay Canyon
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2015 California Academy of Sciences
CalPhotos
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Slo.: nena logarica, Cr.: njena kockavica, vitka kockavica - ., syn.: Fritillaria messanensis subsp. gracilis (Ebel) Rix, Lilium gracile Ebel., Fritilaria neglecta Parl. - Habitat: open stony grassland but also in light Fagus sylvatica forest, calcareous, Karst, humus-rich rendzina soil ground with frequently outcropped carbonate rock, partly sunny, exposed to direct rain, average precipitations about 2.000 mm/year, average temperature 5-7 deg C, elevation 920 (3.020 feet), mountain submediterranean/Dinaric phytogeographical region. - Substratum: soil - Comment: Members of Fritilaria genus are all very tender and beautiful plants with large bell shaped flowers. Only two of them Fritillaria meleagris and Fritilaria orientalis grow in Slovenia and both are rare, endangered and protected. The same is true for Fritilaria gracilis, which unfortunately doesn't appear in my country but south of it in west Balkan peninsula Dinaric mountains (Orjen, Velebit, Prokletije). Endemic to coastal mountains of Croatia, Bosnia, Montenegro and north Albania it appears nowhere else in the world. - Enlisted in the Croatian Red book of rare and endangered species, marked by 'VU' representing a sensitive species. - Ref.: (1) . ili, Endemine biljke (Endemic plants), Svjetlost, Sarajevo (1984) (in Serbo-Croatian), p164. (2) http://www.academia.edu/4055930/Soziologie_und_standortbedingte_Verbreitung_tannenreicher_W%C3%A4lder_im_Orjen_Gebirge_Montenegro_ (3) A. Martini et all., Mala Flora Slovenije, Tehnina Zaloba Slovenije (1999) (in Slovene), p 654. (4) http://hirc.botanic.hr/fcd/DetaljiFrame.aspx?IdVrste=27263&taxon=Fritillaria+messanensis+Raf.+ssp.+gracilis+%28Ebel%29+Rix
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1999 California Academy of Sciences
CalPhotos
botryllus