Sains Malaysiana 45(4)(2016): 535–539

Reproductive Parameters of Chalcorana labialis (Anura: Ranidae) from Peninsular Malaysia

(Parameter Pembiakan Chalcorana labialis (Anura: Ranidae) dari Semenanjung Malaysia)

S. SHAHRIZA¹*, J. IBRAHIM² & M.S. SHAHRUL ANUAR³

¹School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Pulau Pinang, Malaysia

²School of Distances Education, Universiti Sains Malaysia, 11800 Penang, Pulau Pinang, Malaysia

³School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Pulau Pinang, Malaysia

Diserahkan: 2 Disember 2014/Diterima: 2 Oktober 2015

ABSTRACT

Egg clutches of Chalcorana labialis were collected from their natural habitat at Sungai Junjong, Kedah, between March 1998 and February 1999. Egg clutches were typically encountered in temporary pools, rock pools and isolated pools at the edge of the river. In the laboratory several reproductive parameters including clutch size, egg diameter, hatching and metamorphosis rates were measured. The mean ± SD (range, N) of clutch size, egg diameter, hatching and metamorphosis rates of C. labialis were 1365.4 ± 421.1 (787-2100, 10) eggs, 1.36 ± 0.15 (1.12-1.68, 20) mm, 97.30 ± 0.99% (95.87-98.86, 10) and 4.15 ± 0.74% (3.1-5.8, 10), respectively. These results indicated that the successfully rate of larvae to become froglets is relatively low, although it was reared in the laboratory. To keep survived, almost all species of frogs produced eggs in a large quantity.

Keywords: Clutch size; egg diameter; frog; hatching; metamorphosis

ABSTRAK

Kelompok telur Chalcorana labialis telah dikutip dari habitat semulajadinya di Sungai Junjong, Kedah, antara Mac 1998 dan Februari 1999. Kebanyakan daripada kelompok telur tersebut ditemui di lopak sementara, lopak batu dan lopak-lopak terpisah yang berhampiran dengan sungai. Di makmal beberapa parameter pembiakan termasuklah saiz kelompok telur, diameter telur, peratus menetas dan metamorfosis telah diukur. Min ± SD (julat, N) bagi saiz kelompok telur, diameter telur, peratus menetas dan metamorfosis bagi C. labialis masing-masing ialah 1365.4 ± 421.1 (787–2100, 10) telur, 1.36 ± 0.15 (1.12–1.68, 20) mm, 97.30 ± 0.99% (95.87–98.86, 10) and 4.15 ± 0.74% (3.1–5.8, 10). Hasil kajian menunjukkan peratus larva yang berjaya menjadi anak katak adalah amat rendah, walaupun telah dipelihara di dalam makmal. Untuk meneruskan kemandirian, hampir kesemua spesies katak menghasilkan telur dalam kuantiti yang besar.

Kata kunci: Diameter telur; katak; kelompok telur; menetas; metamorphosis

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*Pengarang untuk surat-menyurat; email: shahriza20@yahoo.com