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Image of Botryllus Gaertner 1774
Creatures » … » Animals » … » Tunicates » … » Styelidae » …

Star Ascidian

Botryllus schlosseri (Pallas 1766)

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Image of Star ascidian
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Image of Star ascidian
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Image of Star ascidian
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  • Image of Star ascidian
    Image of Star ascidian
    cc-by-nc-sa-3.0
    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.
  • Image of Star ascidian
    Image of Star ascidian
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    2005 California Academy of Sciences   CalPhotos
    Cosmopolitan organism found worldwide. Individual zooids are hermaphroditic; they do not self fertilize. Non-feeding 'tadpole' larvae settle to found new colonies. The larvae have the characteristics of a vertebrate embryo making them relatives of ours. Field of view 15 mm.
  • Image of Star ascidian
    Image of Star ascidian
    cc-by-nc-sa-3.0
    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.
  • Image of Star ascidian
    Image of Star ascidian
    cc-by-nc-sa-3.0
    2005 California Academy of Sciences   CalPhotos
    These adjacent Botryllus colonies share one allele of their 'fusibility gene' and consequently are undergoing fusion. They will form chimeras.
  • Image of Star ascidian
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "yellow form - on vertical faces of old concrete blocks beside Botryloides leachi, exposed at low tide". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "yellow form - on vertical faces of old concrete blocks beside Botryloides leachi, exposed at low tide". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "yellow form - on vertical faces of old concrete blocks beside Botryloides leachi, exposed at low tide". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Colony
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    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "orange form - in rockpool, on underside of loose rock". Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "orange form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "orange form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "orange form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Close-up - enlarged
    cc-by-nc-sa-3.0
    Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: "blue form - in rockpool, on underside of loose rock". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -2.4. Latitude (deg): 50.6. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: colony on underside of rock at low tide. Other taxa shown: Botrylloides leachii (orange) at top of picture. Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -4.8. Latitude (deg): 55.6. Longitude (deg/min): 4° 50' W. Latitude (deg/min): 55° 40' N. Vice county name: Ayrshire. Vice county no.: 75. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: on rock. Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -4.8. Latitude (deg): 55.6. Longitude (deg/min): 4° 50' W. Latitude (deg/min): 55° 40' N. Vice county name: Ayrshire. Vice county no.: 75. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: on rock. Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Longitude (deg): -4.8. Latitude (deg): 55.6. Longitude (deg/min): 4° 50' W. Latitude (deg/min): 55° 40' N. Vice county name: Ayrshire. Vice county no.: 75. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: on rock. Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
  • Image of Star ascidian
    Colony - close-up
    cc-by-nc-sa-3.0
    Longitude (deg): -4.8. Latitude (deg): 55.6. Longitude (deg/min): 4° 50' W. Latitude (deg/min): 55° 40' N. Vice county name: Ayrshire. Vice county no.: 75. Country: England. Stage: Colony. Identified by: Malcolm Storey. Comment: on rock. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.
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