SavedAdd your journal

Journals / Marine Science and Technology Bulletin / 2026 / Volume: 14 Issue: 2

First record of Calyptotheca alexandriensis (Cheilostomatida, Lanceoporidae) from Ras Juddi (Pasni) Makran coast, Northern Arabian Sea

Qadeer Mohammad Ali(The Marine Reference Collection and Resources Centre, 75270, Karachi, Pakistan)0000-0002-0499-0801
Ateeqa Baloch(The Marine Reference Collection and Resources Centre, 75270, Karachi, Pakistan)0009-0008-8036-3237
Quratulan Ahmed(The Marine Reference Collection and Resources Centre, 75270, Karachi, Pakistan)0000-0002-7597-2483
Paul D. Taylor(Department of Sciences, Natural History Museum, London SW7 5BD)0000-0002-3127-080X
Levent Bat(Sinop University, Fisheries Faculty, Department of Hydrobiology, 57000, Sinop, Türkiye)0000-0002-2289-6691
Pages
—
Publication Date
2025-06-30
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

This study contributes to the understanding of bryozoan biodiversity in the region and highlights the potential for further discoveries along the unexplored coastal areas of Pakistan.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The available information regarding bryozoans in coastal areas of Pakistan is limited.
📊
Key Findings & Data:This species was first reported in the Eastern Harbor of Alexandria, Egypt, as a distinctive deep orange erect foliaceous bryozoan and was observed abundantly on various hard substrates, such as rocks, ropes, metal pipes supporting marina piers, and ship hulls.
💡
Conclusion & Impact:This study contributes to the understanding of bryozoan biodiversity in the region and highlights the potential for further discoveries along the unexplored coastal areas of Pakistan.
🔬Design:Research Article
📍Scope:2021 Verileri
⚙️Variables:Calyptotheca alexandriensis · Lanceoporidae · New record

Abstract

The available information regarding bryozoans in coastal areas of Pakistan is limited. This research paper presents the first record of Calyptotheca alexandriensis from Ras Juddi (Pasni) along the Makran coast, and the second record globally of this species. This species was first reported in the Eastern Harbor of Alexandria, Egypt, as a distinctive deep orange erect foliaceous bryozoan and was observed abundantly on various hard substrates, such as rocks, ropes, metal pipes supporting marina piers, and ship hulls. The discovery adds a new record of the family, Lanceoporidae, and genus, Calyptotheca, to the bryozoan fauna of Pakistan, expanding its known distribution to the Northern Arabian Sea. The present specimens were collected during December 2021–October 2022 and subjected to detailed taxonomic analysis using light microscopy and scanning electron microscopy (SEM). This study contributes to the understanding of bryozoan biodiversity in the region and highlights the potential for further discoveries along the unexplored coastal areas of Pakistan.

🔖

Cite This Article

Ali, Q. M., Baloch, A., Ahmed, Q., Taylor, P. D., Bat, L. (2025). First record of Calyptotheca alexandriensis (Cheilostomatida, Lanceoporidae) from Ras Juddi (Pasni) Makran coast, Northern Arabian Sea. Marine Science and Technology Bulletin, Volume: 14 Issue: 2. https://doi.org/10.33714/masteb.1673110

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (22)

  1. Abdelsalam, K. M., Taylor, P. D., & Dorgham, M. M. (2017). A new species of Calyptotheca (bryozoa: Cheilostomata) from Alexandria, Egypt, southeastern Mediterranean. Zootaxa, 4276(4), 582-590. https://doi.org/10.11646/zootaxa.4276.4.9
  2. Ahmed, M., Rizvi, S. H. N., & Moazzam, M. (1978). Final technical report on the studies on the settlement and control of marine organisms in the cooling systems of coastal installations. Institute of Marine Biology, University of Karachi.
  3. Ali, Y. (2006). Report of the survey conducted by KSDC in the year 2005-2006. p.6
  4. Anonymous (2025). Calyptotheca Harmer, 1957. Retrieved on May 27, 2025 from https://www.bryozoa.net/cheilostomata/lanceoporidae/calyptotheca.html
  5. Aslam, S., Siddiqui, G. H., Kazmi, J., & Moura, C. J. (2019). First occurrence of the non-indigenous bryozoan Amathia verticillata (Della Chiaje, 1882) at the Hab River mouth in Pakistan. Regional Studies in Marine Science, 30, 100706. https://doi.org/10.1016/j.rsma.2019.100706
  6. Baig, H. S. (2014). The mobile and sessile fauna associated with some ecological remarks Caulerpa taxifolia. Pakistan Journal of Oceanography, 7(1), 31-40.
  7. Bock, P. (2024). World List of Bryozoa. Calyptotheca Harmer, 1957. World Register of Marine Species. Retrieved on May 27, 2024, from https://www.marinespecies.org/aphia.php?p=taxdetails&id=110934
  8. Bock, P. (2025). World List of Bryozoa (version 2025-05-01). In O. Bánki, Y. Roskov, M. Döring, G. Ower, D. R. Hernández Robles, C. A. Plata Corredor, T. Stjernegaard Jeppesen, A. Örn, T. Pape, D. Hobern, S. Garnett, H. Little, R. E. DeWalt, J. Miller, & T. Orrell, Catalogue of Life (Annual Checklist 2025). Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgr6n-3bb
  9. Boonzaaier, M. K. (2017). Diversity and zoogeography of South African Bryozoa. [Ph.D. Dissertation. University of the Western Cape].
  10. Cumming, R. L., & Tilbrook, K. J. (2014). Six species of Calyptotheca (Bryozoa, Cheilostomata, Lanceoporidae) from the Gulf of Carpentaria and northern Australia, with description of a new species. Zootaxa, 3827(2), 147-169.https://doi.org/10.11646/zootaxa.3827.2.2
  11. Florence, W. K., Hayward, P. J., & Gibbons, M. J. (2007). Taxonomy of shallow-water Bryozoa from the west coast of South Africa. African Natural History, 3(1), 1-58.
  12. Guha, A. K., & Gopikrishna, K. (2007). Some fossil Ascophoran bryozoans from Tertiary sequences of western Kachchh, Gujarat. Journal of the Palaeontological Society of India, 52(2), 195-222. https://doi.org/10.1177/0971102320070207
  13. Haq, S. M., Moazzam, M., & Rizvi, S. H. N. (1978). Studies on marine fouling organisms from Karachi coast I. Preliminary studies on the intertidal distribution and ecology of fouling organisms at Paradise Point. Pakistan Journal of Zoology, 10, 103-115.
  14. Javed, M., & Mustaquim, J. (1995). The occurrence of fouling organisms on navigational buoys in the Manora Channel, Pakistan. In Thompson, M. F., & Tirmizi, N. M. (Eds.), The Arabian Sea: Living marine resources and the environment (pp. 99-100). CRC Press.
  15. Javed, M., & Tirmizi, N. M. (1993). Four species of Bugula (Bryozoa: Bugulidae) new to the Pakistan coast (northern Arabian Sea). Pakistan Journal of Zoology, 25(4), 285-288.
  16. Javed, M.J. (1990). Systematic study of Bryozoa from Sindh (Karachi) and Makran (Gadani and Sunari) coasts. (M.Phil. Dissertation), Centre of Excellence in Marine Biology, University of Karachi,.p.114
  17. Karim, S. I. (1970). Bryozoa of the genus Bugula of Karachi coast. Records of the Zoological Survey of Pakistan, 17-23.
  18. Kazmi, Q. B., Naushaba, R., Moazzam, M., & Kazmi, M. A. (2019). Pakistani Marine Faunal Biodiversity Inventory and Taxonomic Resources.Zoological Society Pakistan. p.721.
  19. Menon, N. R. (1973). Species of the suborder Ctenostomata (Bryozoa) from Indian waters. In: Zeitzschel, B. (Ed.), The Biology of the Indian Ocean, pp. 407-408. Chapman and Hall, London.https://doi.org/10.1007/978-3-642-65468-8_36
  20. National Oceanic and Atmospheric Administration (2024). MZGdb Atlas Bryozoa (Indian Ocean). https://www.st.nmfs.noaa.gov/copepod/collaboration/metazoogene/atlas/html-src/short__T4000076__o05.html
  21. Ostrovsky, A. N., Cáceres-Chamizo, J. P., Vávra, N., & Berning, B. (2011). Bryozoa of the Red Sea: history and current state of research. Annals of Bryozoology, 3, 67-97.
  22. Sanjay, M. S., Venkatraman, C., Louis, S., Shrinivaasu, S., & Yogesh Kumar, J. S. (2022). New distributional records of Indo-Pacific Bryozoans from East and West coast of India. Indian Journal of Geo-Marine Sciences,50(09), 714-722.https://doi.org/10.56042/ijms.v50i09.66667