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Niken Tunjung Murti Pratiwi
Departemen Manajemen Sumberdaya Perairan, Fakultas Perikanan Dan Ilmu Kelautan, IPB University
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Life‑History Responses of Daphnia to Catfish Kairomones: Does Ipomoea aquatica Function as an Effective Refuge? Mochamad Haikal Haikal; Majariana Krisanti; Niken Tunjung Murti Pratiwi; Pelita Octorina
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 32 No. 1 (2026)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2026.14136

Abstract

Zooplankton, particularly Daphnia sp., play a key role in aquatic food webs and exhibit strong life‑history plasticity in response to predation risk mediated by chemical cues (kairomones). Aquatic macrophytes such as water spinach (Ipomoea aquatica) are often assumed to provide refuge that may mitigate these effects. This study examined the influence of catfish (Clarias sp.) kairomones and the potential moderating role of I. aquatica on reproduction and survival of Daphnia sp. using an individual‑based bioassay with a randomized block design. Four treatments were applied: control, I. aquatica, kairomones, and kairomones + I. aquatica, observed in 15 days. Parameters measured included neonate number, age at first and second reproduction (AFR, ASR), Second Clutch/First Clutch ratio (C2/C1 ratio), and mortality. Kairomone exposure significantly reduced first‑clutch offspring production and delayed AFR, and induced compensatory reproduction in the second clutch, reflected by the highest C2/C1 ratios (K = 2.30; H = 2.11). Mortality was also highest in kairomone treatments (>42%). The presence of I. aquatica did not significantly mitigate kairomone effects and was associated with increased mortality relative to the control. These results indicate that chemical predator cues dominate over physical shelter in shaping Daphnia sp. life‑history strategies, with important implications for zooplankton dynamics in vegetated freshwater ecosystems.
Co-Authors . Winarlin Adham Panji Ahmad Muhtadi Ali Mashar Ali Mashar Ali Mashar Mashar Aliati Iswantari Ananda Diah Oktaviani Aprizal Junaidi Aprizal Junaidi Ari Sri Windyaswari Ari Wahyuni Ario Damar Asri Melani Ayu, Inna Puspa Bambang Widigdo Caesario, Rachmad Dudi Muhammad Wildan Dwi Yuni Wulandari Ega Hana Masitoh Masitoh Elfahmi Elfahmi, Elfahmi Enan Mulyana Adiwilaga Enan Mulyana Adiwilaga F Farlina Fahrauk Faramayuda Fahrauk Faramayuda, Fahrauk Farlina, F Febby Amanda Putri FERY KURNIAWAN Fifi Gus Dwiyanti Gatot Yulianto Grin Tommy Panggabean Hasibuan, Febya Rizki Hefni Effendi Herman Yulianto Herman Yulianto I Gusti Bagus Wiksuana Ichsan Suryo Wibowo Iskandar Iskandar Kadarwan Soewardi Khairunisa Harizqi Nurul Husna Kusumaningtyas, Al Izzha Liani Aliwu, Putri Majariana Krisanti Maria Tri Miarsih Masruhin Masruhin Maulana Rasyad, Rafi Maulid Wahid Yusuf Mazlan Mazlan Mochamad Haikal Haikal Mohammad Mukhlis Kamal Neri Kautsari Nirwana Lovandi, Mustika Novi Susetyo Adi Novi Susetyo Adi Novita MZ Nurhasana, Antika Nursiyamah, Siti Nursiyamah, Siti Oktiyas Muzaky Luthfi Pedryn Dirgantara Pelita Octorina Qadar Hasani Qadar Hasani Qadar Hasani Rachmad Caesario Radityani, Fitri Afina Rahmat Kurnia Randi FItriadi Rica Sumaryani Ridwan Affandi Ridzka Magfirah RIFKI TAJUDIN Ronauli, Eva Cristine Sakina, Edna Salsa Rizqyana Billa Sigid Hariyadi Sigid Hariyadi Soraya Riyanti Sulaiman, Goran Suryanti Afifah Sulaiman, Goran Suryanti Afifah Syahnan Aly Lubis Syamsiar, Syamsiar Tri Apriadi Wibowo, Ichsan Suryo Yuki Hana Eka Frandy Yusli Wardiatno Yusup, Maulid Wahid Zulfa, Istna Nabila ZULMI, REZA