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Journal : Edubiotik : Jurnal Pendidikan, Biologi dan Terapan

Morphological plasticity of uceng fish (Nemacheilus spp.): A statistical exploration of water quality influences in East Java’s river Rahayu, Dwi Anggorowati; Nugroho, Endik Deni; Sulung, Cahya Ajeng Valenta Tresna; Rusdianto, Rusdianto; Mamat, Noorhidayah Binti
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 10 No. 01 (2025): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v10i01.1383

Abstract

Morphological plasticity in aquatic organisms is an adaptive phenomenon that enables species to respond to changing environmental conditions, particularly in native fish species such as the Uceng fish. This study aims to: (1) describe the morphological variation of the Uceng fish and water quality parameters in three river locations in East Java; (2) analyze the relationship between water quality parameters and the morphological characteristics of the Uceng fish; (3) identify the water quality parameters that most affect morphological variation of fish through PCA analysis; and (4) model the relationship between water quality parameters as independent variables and fish morphological characteristics as dependent variables. This research employed a correlational approach with a cross-sectional comparative design, comparing fish samples from three different geographic locations: Blitar, Pasuruan, and Lumajang. Data analysis was conducted using correlation analysis, PCA, and multiple regression modeling. Measurement of the Morphological Characteristics of the Uceng Fish, Morphometric Measurement (14 characters). The results showed a significant negative correlation (r = -0.155, p = 0.017) between environmental factors and fish morphology, with approximately 33% of the morphological variation explained by the combination of environmental factors (DO, temperature, COD, and TDS). PCA analysis identified DO as the parameter with the strongest positive influence, while temperature, COD, and TDS showed negative effects. These findings emphasize the species’ adaptive capacity and underline the importance of monitoring environmental quality to support biodiversity conservation in increasingly impacted river ecosystems of East Java.
Molecular characterization of genus Tor from Indonesia based on 16S rRNA Rahayu, Dwi Anggorowati; Nugroho, Endik Deni; Azrianingsih, Rodiyati; Kurniawan, Nia
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 7 No. 01 (2022): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v7i01.1880

Abstract

Genus Tor is Indonesia's endangered local fish however, the reports on this species from South East Asia is currently limited. This study conducted to characterize molecular genetics and phylogenetic relationship of Tor fish from East Java, West Kalimantan, Padang and North Sumatra from BPBAT Bogor collection using a partial sequence of mtDNA 16S rRNA. A total of ten samples of Genus Tor were collected, then identified based on morphological characters, and the identification was confirmed using molecular data. PCR amplicons at 542 bp in length. The construction of phylogenetic topology was made based on ML and NJ method using Kimura-2 parameter model. Based on the phylogenetic topology showed that Tor fish from Pasuruan are closely related to Tor duoronensis from Padang with a bootstrap value of 66%, while Tor duoronensis fish from North Sumatra and Tor tambra from West Kalimantan are in separated clusters. This finding also contributes to the differentiate Genus Tor from Indonesia based on polymorphic sites
Diversity of bird agroforestry species in Sapen Nusantara Conservation Park of Mount Arjuno, Pasuruan Nugroho, Endik Deni; Rahayu, Dwi Anggorowati; Ainiyah, Roisatul; Fathurrohman, Amang; Ahwan, Zainul; Dayat, Muhammad; Wibisono, Mulyono; Aji, Fafit Rahmat; Kasiman, Kasiman
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 8 No. 01 (2023): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v8i01.1059

Abstract

The Sapen Nusantara Conservation Park is agroforestry that has certain vegetation. The vegetation in Sapen Nusantara Protected forest park seems to support the existence of birds as wildlife that need a living habitat. The presence of birds in the Sapen Nusantara Protected Forest Park is very important in supporting agroforestry vegetation. However, until now the diversity of bird species there has not been identified and recorded properly. The forest is one of the buffer forests of Mount Arjuno protection forest, the ecosystem must be protected. This study aims to analyze the diversity of bird species in the agroforest forest area in Sapen Nusantara Conservation forest park, Ledug Village, Pasuruan. The research was conducted in July 2021 using the direct observation method (point count) on ecotourism routes by calculating and recording the trails traversed using GPS, sampling by observing walking along the path/road accompanied by predetermined observation points, identification primarily based totally on MacKinnon et al., (2010) and information on the status of its protection. Data analysis used the Shannon-Wiener diversity index, evenness index, and species richness index. The results of the study identified 18 bird species from 16 families with a total of 169 individuals. Of all the birds found, 18 species are listed in IUCN status, and 4 are listed in the protected status PP No. P.106 of 2018 and 3 species are listed in the CITES category Appendix II. It is known that the Shannon diversity index (H'=2,547) is in the medium diversity category. species evenness index (E=0.9) with a high evenness category and stable community. Then the specific wealth index (R=3.31) with the category of species richness is classified as medium. The presence of birds in the Sapen Nusantara Conservation Park Forest indicates that the ecosystem in the forest is still maintained and this cannot be separated from the role of the community, especially the Ledug Lembaga Masyarakat Desa Hutan (LMDH), which manages and maintains the forest.