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Bioeksperimen: Jurnal Penelitian Biologi
Published by Universitas Muhammadiyah Surakarta
ISSN : -     EISSN : -     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol 10, No 2: September 2024" : 4 Documents clear
Diversity of Waterbirds in the Wetland of Pangpang Bay Essential Ecosystem Area, Banyuwangi, Indonesia Fahrani, Elyn; Susintowati, Susintowati; Nugrahani, Magdalena Putri; Sungkono, Sungkono; Prasetyo, Yusuf Eko
Bioeksperimen: Jurnal Penelitian Biologi Vol 10, No 2: September 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v10i2.23863

Abstract

The Essential Ecosystem Area (KEE) of Teluk Pangpang, Banyuwangi is a wetland that is passed by the East Asia Australia Flyway (EAAF) bird migration route. This study aims to study the diversity, and abundance of waterfowl species, and the relationship between the existence of waterfowl species and environmental factors in each type of wetland habitat. This study was conducted in October 2023-January 2024 using the "Concentration Count" method on each type of wetland habitat, observations were made for 2-3 hours concerning the tidal schedule of seawater. Based on observations, 34 species of waterbirds were found in all wetland habitats with a total number of 7468 individuals. The mud stretch of Muncar Beach has the highest species diversity with a total of 32 species of waterbirds, while the Kili-Kili mangrove habitat has the lowest level of species diversity with a total of 5 species of waterbirds. There have been 22 species of migratory waterbirds, 8 species of resident waterbirds, and 4 species of migratory resident waterbirds. Based on IUCN status, 5 species were found to be near threatened (NT), and 3 species were endangered (EN). The abundance of the highest waterbird species, namely Bulbulus ibis,  is 3742 individuals that dominate the mangrove habitat. The value of the index of waterfowl species diversity in each type of wetland habitat is included in the medium category (H'=1,895 – 2,594.), except for the low category of mangrove habitat (H'=0.719). The results of the PCA show that the existence of waterfowl is influenced by habitat conditions and environmental parameters (temperature, air humidity, light intensity, salinity).
Composition and Zonation of Mangrove Vegetation in Ujung Pangkah, Gresik, Indonesia Mabruroh, Arofatul Syabina; Firdhausi, Nirmala Fitria; Bahri, Saiful; Rachmawati, Yuanita; Munir, Misbakhul
Bioeksperimen: Jurnal Penelitian Biologi Vol 10, No 2: September 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v10i2.23819

Abstract

Ujung Pangkah Gresik is a significant mangrove area with both ecological and economic functions. Ecologically, it prevents seawater intrusion and abrasion, while economically, it supports sectors like tourism, forestry, fisheries, and ecotourism. This research aims to identify mangrove species diversity and zoning patterns in Ujung Pangkah using survey methods to assess diversity, density, dominance, importance value, and zoning. Four species were found (Avicennia marina, Avicennia officinalis, Rhizophora stylosa, Ceriops tagal) with 454 individuals. The diversity value is moderate at 1.86. The highest and lowest densities were 0.52 and 0.01, respectively. Avicennia marina is the dominant species with an importance index of 273.69. The area has a mixed zoning pattern.
Efficacy of Endophytic Bacteria Pantoea dispersa Strain DSM 30073 on The Growth of Ipomoea reptans Rahayu, Triastuti; Sidiq, Yasir; Anhari, Minhatul Ulya; Zulperi, Dzarifah
Bioeksperimen: Jurnal Penelitian Biologi Vol 10, No 2: September 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v10i2.23183

Abstract

Pantoea dispersa strain DSM 30073 is an endophytic bacterium isolated from the Ambon banana plant. From in vitro tests, this strain shows characteristics such as PGPB (Plant Growth Promoting Bacteria) and can support the growth of Cavendish banana plants, but its effect on Ipomoea reptans is unknown. The purpose of this study was to determine the efficacy of endophytic bacteria Pantoea dispersa strain DSM 30073 against the growth of Ipomoea reptans. The research design used was a one-factor Complete Randomized Design (CRD), namely inoculation frequency (P): control (P0), one-time inoculation (P1), and two-time inoculation (P2). The inoculum was confirmed to be pure by gram staining and cultured on NB medium with a 24-hour shake at room temperature. After 24 hours, the cells were harvested, and a suspension was made by adding Ringer's solution until it reached an OD600 nm of 0.8 – 1. Seeds were sterilized using 70 % alcohol followed by 1 % NaOCl for 1 minute each, then washed using sterile aquadest 3 times.  Sterile seeds were inoculated with an inoculum suspension for 30 minutes (P1). After inoculation, seeds are planted on a sterile soil medium. Repeated inoculation is carried out on the 11th day (P2). The growth of Ipomoea reptans is observed: plant height (cm), number of leaves (strands), leaf stretch (cm), wet weight of the plant (g), root length (cm), and number of roots (total). After 30 days, data on plant height 16.1 cm (control) – 17.4 cm (inoculation), wet weight of plants 1.1 g (control) – 1.4 g (inoculation 2 times), number of leaves 7 strands (control) – 8 strands (inoculation 2 times), and leaf stretch 10.2 cm – 10.9 cm (inoculation 2 times). Inoculation of Pantoea dispersa strain DSM 30073 had no effect on plant height growth, wet weight, leaf number, and leaf stretch but was significantly different in root parameters. It can be concluded that the Pantoea dispersa was not seen to support the growth of Ipomoea reptans significantly until 30 days after inoculation.
Diversity and Conservation Status of Gelodok Fish (Perciformes: Gobiidae) in East Pohuwato Coastal Area, Gorontalo Province, Indonesia Cono, Titi Hawanda Metania; Hasim, Hasim; Hamidun, Marini Susanti; Baderan, Dewi Wahyuni. K; Dunggio, Iswan
Bioeksperimen: Jurnal Penelitian Biologi Vol 10, No 2: September 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v10i2.23114

Abstract

This study aims to determine the diversity and conservation status of Gelodok fish in the Pohuwato Coastal Mangrove Area. Data collection techniques were carried out by surveying the location to see the conditions and determine the sampling site. Sampling was done by cruising method using 3x3 meter size net. The fish found then analyzed the level of diversity and conservation status. The results showed that the spadefish found in the mangrove area of East Pohuwato Village consisted of two species of spadefish, namely Periophthalmus malaccensis and Periophthalmus argentilineatus with a diversity value of 0.17016 classified as low diversity. The conservation status of Periophthalmus malaccensis is included in the Data Deficient (DD) category and Periophthalmus argentilineatus is included in the Least Concern (LC) category based on the IUCN Red List of Threatened Species (IUCN)

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