Karakteristik Sarang Peneluran Penyu Lekang (Lepidochelys olivacea) di Pantai Jeen Yessa, Papua Barat - Indonesia

Pub Date : 2024-01-11 DOI:10.14710/jmr.v13i1.38103

Arifatul Hasanah, Duaitd Kolibongso, Deasy Lontoh

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引用次数: 0

Abstract

Pantai Jeen Yessa merupakan salah satu tempat bertelur bagi beberapa spesies penyu di Pasifik Barat, dengan sekitar 75% peneluran terjadi di pantai utara semenanjung Bentang Laut Kepala Burung di wilayah Abun, Papua Barat. Wilayah ini memiliki karakteristik suhu yang tinggi dan kelembaban yang rendah. Kedua faktor tersebut memainkan peran penting dalam keberhasilan reproduksi. Penelitian ini merupakan salah satu studi pertama mengenai karakteristik morfologi sarang penyu lekang (L. olivacea) di Pantai Jeen Yessa, dan diharapkan dapat memberikan kontribusi terhadap pengetahuan regional mengenai spesies ini serta membantu dalam pengelolaan perlindungan setempat. Survei ini dilakukan di tiga lokasi selama musim bertelur pada Mei-Juli 2022. Karakteristik sarang L. olivacea: rata-rata bagian atas sarang 30 ± 5,41 (rata-rata ± SD) cm (kisaran 20 - 43 cm, n = 34); bagian bawah sarang 42 ± 5,14 (rata-rata ± SD) cm (kisaran 32 - 54 cm, n = 34); dan lebar sarang 27,3 ± 4,87 (rata-rata ± SD) cm (kisaran 18 - 38 cm, n = 34). Masa inkubasi antara kedua lokasi bervariasi: Warmamedi 62,5 hari ± 4,5 dan Batu Rumah 48,7 hari ± 1,8 (rata-rata ± SD). Rata-rata keberhasilan penetasan adalah 78,3%, dan tingkat kematian 21,7% (jumlah telur yang dihitung = 2.367). Penelitian lebih lanjut mengenai metode inkubasi buatan sangat disarankan, karena ini bisa menjadi pilihan penting untuk melestarikan populasi penyu. Jeen Yessa Beach is one of the nesting sites for several turtle species in Western Pasific, with approximately 75% of nesting occurring on the northern coast of the Bird’s Head Seascape peninsula in the Abun region of West Papua. This region is characterized by high temperatures and low humidity. Both factors play an important role in reproductive success. This is one of the first studies on the morphological characteristics of the nest of the olive ridley turtle (L. olivacea) on the Jeen Yessa beach, and it is expected to contribute to regional knowledge of this species and aid in local protection management. The survey was conducted in three locations during the nesting season in Mei-July 2022. L. olivacea nest characteristics: average nest top 30 ± 5.41 (mean ± SD) cm (range 20 – 43 cm, n = 34); nest bottom 42 ± 5.14 (mean ± SD) cm (range 32-54 cm, n = 34); and a nest width of 27.3 ± 4.9 (mean ± SD) cm (range 18 – 38 cm, n = 34). The incubation period between the two sites varies: Warmamedi 62.5 days ± 4.5 and Batu Rumah 48.7 days ± 1.8 (mean ± SD). The average hatching success was 78.3%, and the mortality rate was 21.7% (eggs counted = 2,367). More research into artificial incubation methods is recommended, as this could be an important option for preserving some sea turtle populations.

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印度尼西亚西巴布亚 Jeen Yessa 海滩 Olive Ridley 海龟（Lepidochelys olivacea）巢的特征

Jeen Yessa 海滩是西太平洋多个海龟物种的筑巢地之一，约 75% 的筑巢活动发生在西巴布亚阿本地区鸟头海景半岛的北海岸。该地区的特点是气温高、湿度低。这两个因素对繁殖的成功与否起着重要作用。本研究是对珍耶萨海滩橄榄利海龟（L. olivacea）巢形态特征的首次研究之一，预计将有助于增进该地区对该物种的了解，并有助于当地的保护管理。调查于 2022 年 5 月至 7 月的筑巢季节在三个地点进行。L. olivacea巢的特征：平均巢顶30 ± 5.41（平均±标准差）厘米（范围20 - 43厘米，n = 34）；巢底42 ± 5.14（平均±标准差）厘米（范围32 - 54厘米，n = 34）；巢宽27.3 ± 4.87（平均±标准差）厘米（范围18 - 38厘米，n = 34）。两个地点的孵化期各不相同：温暖地62.5天±4.5天，峇都鲁玛48.7天±1.8天（平均值±标准差）。平均孵化成功率为 78.3%，死亡率为 21.7%（统计卵数 = 2,367 枚）。强烈建议进一步研究人工孵化方法，因为这可能是保护海龟种群的一个重要选择。 Jeen Yessa 海滩是西太平洋多个海龟物种的筑巢地之一，约 75% 的筑巢活动发生在西巴布亚阿本地区鸟头海景半岛的北部海岸。该地区的特点是气温高、湿度低。这两个因素对繁殖的成功都起着重要作用。这是对 Jeen Yessa 海滩上橄榄脊龟（L. olivacea）巢穴形态特征的首次研究之一，预计将有助于加深该地区对这一物种的了解，并有助于当地的保护管理。调查于 2022 年 5 月至 7 月的筑巢季节在三个地点进行。L. olivacea巢的特征：平均巢顶30 ± 5.41（平均值±标准差）厘米（范围20 - 43厘米，n = 34）；巢底42 ± 5.14（平均值±标准差）厘米（范围32 - 54厘米，n = 34）；巢宽27.3 ± 4.9（平均值±标准差）厘米（范围18 - 38厘米，n = 34）。两个地点的孵化期各不相同：沃玛米迪62.5天±4.5，峇都鲁玛48.7天±1.8（平均值±标准差）。平均孵化成功率为 78.3%，死亡率为 21.7%（卵数 = 2,367 枚）。建议对人工孵化方法进行更多研究，因为这可能是保护某些海龟种群的重要选择。

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