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Dergiler / International Journal of Environment and Geoinformatics / 2026 / Volume: 5 Issue: 1

First record of a-sexual reproduction by fission in Holothuria (lessonothuria) verrucosa (Selenka, 1867) from coastal waters of Karachi, Pakistan

Quratulan Ahmed(Marine Reference Collection and Resources Centre, University of Karachi, Karachi, 75270, Pakistan)
Qadeer Mohammad Ali(Marine Reference Collection and Resources Centre, University of Karachi, Karachi, 75270, Pakistan)
Nurzafirah Mazlan(Department of Diagnostic and Health Science, Faculty of Health and Life Sciences, Management and Science University, Seksyen 13, Shah Alam, 25200 Selangor, Malaysia)
Levent Bat(University of Sinop, Fisheries Faculty, Department of Hydrobiology, Sinop, Turkey)
Sayfa
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Yayın Tarihi
2018-04-04
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Large growth of tentacle was also seen on Day 98 of the experiment with a final weight of the specimen P as 17.56 g and length as 9.7 cm.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:An experiment of a-sexual reproduction by fission was conducted on sea cucumber, Holothuria (Lessonothuria) verrucosa (Selenka, 1867) for 98 days.
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Temel Bulgular & Veri:Anterior fission was observed on Day 1 with the formation of fission on the body of the sea cucumber.
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Sonuç & Katkı:Large growth of tentacle was also seen on Day 98 of the experiment with a final weight of the specimen P as 17.56 g and length as 9.7 cm.
🔬Tür:Research Article
📍Kapsam:2 specimens
⚙️Değişkenler:Asexual reproduction · fission · Holothuria verrucosa

Abstract

An experiment of a-sexual reproduction by fission was conducted on sea cucumber, Holothuria (Lessonothuria) verrucosa (Selenka, 1867) for 98 days. Anterior fission was observed on Day 1 with the formation of fission on the body of the sea cucumber. Initial length of 14 cm and weight of 21 g was measured at Day 1 in an aquarium under laboratory condition. Complete fission was observed on Day 7 of experiment by formation of 2 specimens; A and P. Initial length and weight for A was 4.5 cm and 3.18 g, while P was 9.5 cm and 17.30 g respectively. Increased weight for specimen A was observed on Day 20 with the first observation of the formation of anal pore. Tentacles started to form on specimen P on Day 34. Complete formation of anus on specimen A was seen on the 98th day of experiment with final weight of 3.84 g and length of 4.6 cm. Large growth of tentacle was also seen on Day 98 of the experiment with a final weight of the specimen P as 17.56 g and length as 9.7 cm.

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Bu Makaleye Atıf Yap

Ahmed, Q., Ali, Q. M., Mazlan, N., Bat, L. (2018). First record of a-sexual reproduction by fission in Holothuria (lessonothuria) verrucosa (Selenka, 1867) from coastal waters of Karachi, Pakistan. International Journal of Environment and Geoinformatics, Volume: 5 Issue: 1. https://doi.org/10.30897/ijegeo.353267

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Kaynakça (1)

  1. Referee 1: Dr. Bülent Topaloğlu, Istanbul University [email protected] Referee 2: Dr. Ertan Dağlı, Ege University, [email protected]