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All Journal Jurnal Ilmiah Dan Karya Mahasiswa Jurnal Cakrawala Pendidikan dan Biologi (jucapenbi)
Rahajeng Galuh Tribuana
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Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Other

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Literatur Review: Kajian Evolusi Paus Balin Secara Filogenetik dan Molekuler Na’illah Ega Sivana; Rahajeng Galuh Tribuana; Rifqi Ilham; Muhimatul Umami
Jurnal Ilmiah Dan Karya Mahasiswa Vol. 3 No. 1 (2025): JURNAL ILMIAH DAN KARYA MAHASISWA (JIKMA)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jikma.v3i1.2863

Abstract

The evolution of Mysticeti (baleen whales) shows a unique transition from teeth to baleen, a specialized keratin structure that allows mass filtering methods to utilize zooplankton as a primary food source. This process includes significant anatomical, morphological, and molecular changes in their evolutionary history. This study examines paleontological, ontogenetic, and molecular evidence to understand the evolutionary mechanisms of tooth loss and the emergence of baleen. Genetic analysis shows inactivating mutations in enamel genes such as MMP20, ACP4, and KLK4 that promote the loss of enamel and teeth in Mysticeti. Paleontological findings indicate proto-baleen in Aetiocetidae as an important transitional stage to modern baleen structures. This study highlights the evolution of unique adaptations in Mysticeti that enabled their ecological success as the world's largest filter-feeding predators.
Analisis Bioetika Mengenai Eksploitasi Sturgeon (Acipenser sturio) dalam Industri Caviar dan Dampaknya terhadap Kelestarian Spesies Rahajeng Galuh Tribuana; Sani Shofi Muthmainah; Vutri Suci Fatimah; Tri Cahyanto
Jurnal Cakrawala Pendidikan dan Biologi Vol. 2 No. 4 (2025): Desember: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i4.885

Abstract

Intensive exploitation of fish for caviar production currently threatens the extinction of sturgeon, one of the ancient fish species. Sturgeon egg harvesting is often carried out in inhumane ways, such as dissecting and killing parent fish, causing the natural sturgeon population to decline. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) regulates the international trade of sturgeon and caviar, but weak law enforcement, high market demand, and widespread illegal trade all exacerbate the conservation status of this species. Conversely, caviar aquaculture, often considered an alternative, raises new bioethical issues, including long-term stress on fish, disease spread, decline in animal health, and the risk of hybridization that could threaten the genetic integrity of sturgeon populations. From a bioethical and environmental ethics perspective, it is difficult to justify the consumption of caviar as a luxury commodity at the expense of ecosystem sustainability and animal welfare. Therefore, sturgeon conservation requires a comprehensive approach that includes reducing consumer demand, improving legislation and enforcement, and preserving and restoring sturgeon's natural habitats.
Co-Authors Muhimatul Umami Na’illah Ega Sivana Rifqi Ilham Sani Shofi Muthmainah Tri Cahyanto Vutri Suci Fatimah