scholarly journals KEANEKARAGAMAN JENIS IKAN FAMILI CYPRINIDAE DI SUNGAI ARIUNG KECAMATAN PUTUSSIBAU UTARA KABUPATEN KAPUAS HULU

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Sy Tarmizi Septian ◽  
Hari Prayogo ◽  
M Dirhamsyah

The cyprinidae family is a true freshwater fish that dominant in Indonesian fresh waters and the main in habitant of the most population in several rivers in Kalimantan. One of river that found cyprinidae family is Ariung river in Mendalam Village, North Putussibau District, Kapuas Hulu Regency, West Kalimantan. This study aims to obtain data on the fish diversity of the cyprinidae in Ariung River. The method used in this research is survey method and direct observation in the field. Determination of sampling points with purposive sampling and followed systematically based on environmental conditions. The results showed as many as 5 observation stations found 187 individuals belonging to 15 types, among them are Barbichthys laevis, Barbodes schwanenfeldii, Cyclocheilichtys apogon, Hampala macrolepidota, Labiobarbus ocellatus, Osteochilus hasselti, Osteochilus kappenii, Osteochilus microcephalus, Osteochilus pleurotaenia, Osteochilus waandersii, Puntioplites bulu, Rasbora caudimaculata, Rasbora sp, Thynnichthys polylepis dan Thynnichthys thynnoides. Based on the results of data analysis, the dominant index of fish in the Ariung river shows low dominance. Values (C) from the five observation stations ranged from 0.135 - 0.284. The index of fish species diversity in the Ariung river shows moderate species diversity. Diversity index (H ') values for the five stations ranged from 1.322 - 2.130. Evenness index (E) values at the five stations are at 0.912 – 0.953 and a wealth index (R) at the five stations has a high wealth of R > 4.Keywords: Ariung Rivers, Cyprinidae Family, Fish Diversity

2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Novita Putri Sesar ◽  
Iskandar A M ◽  
Togar Fernando Manurung

Natural orchids are one of the flora in Mount Poteng which is included of Raya Pasi Nature Reserve located at Singkawang City, West Kalimantan Province. Orchids have economic value for source of income and be beneficial to ecology that needs to be protected. The altitudes and environmental factors strongly affected the presence of orchid species.The research aims to record the diversity of natural orchids species based on the altitudes place in Mount Poteng. The research was conducted on February 28 until March 28, 2020. This research uses survey method. The research sample was taken using double plots method and to determine sample plots locations is conducted by purposive. The total number of the sample plots is 16 plots and each plot measure 20 by 50 meters. Based on the result of research found 19 species of natural orchids that consist of 348 individuals. The results analysis of the diversity index of orchid species in whole of altitudes at Mount Poteng is 1,338 that is included medium range. The highest species diversity index of 1,300 occurred at altitude of 400-500 m asl and the lowest species diversity index at altitude of 700-725 m asl that is 0,594. Orchid species which found in whole of altitudes is Dendrobium crumenatum. Furthermor, there were found the orchid species on certain heights are Cleisostoma scortechinii, Cordiglottis filiformis, Ludisia discolor, and Phalaenopsis pantherina at altitude of 400-500 m asl and species of Bromheadia finlaysoniana and Pomatocalpa latifolia found at altitude of 700-725 m asl.Keywords: altitudes, mount poteng, orchids, species diversity


Author(s):  
Erwin Theofilius ◽  
Zahidah Hasan ◽  
Asep Agus Handaka ◽  
Herman Hamndani

This study conducted to determine the water quality of Situ Ciburuy based on the structure of the gastropod community as a bioindicator. The survey method used in this study based on collecting data directly at the research area (purpose sampling method).  For instance, species and density of gastropods were descriptively analyzed, using diversity index and evenes index. For instance, The findings showed that level of water quality in  Situ Ciburuy based on gastropods bioindicators was lightly polluted. That is indicated by the low to moderate diversity of gastropods, which ranges from 1.31-1.98. The Shannon evenness index (0,73-0.95) revealed low gastropod species diversity in Situ Ciburuy, indicating low evenness of gastropod in Situ Ciburuy.


bionature ◽  
2019 ◽  
Vol 20 (2) ◽  
pp. 140
Author(s):  
Rian Tahapary ◽  
Hasan Tuaputty ◽  
Sintje Liline ◽  
Tri Santi Kurnia ◽  
Muhammad Tarmizi Kubangun

Abstract. One of the ecological roles of seagrass beds is as fish habitat and the presence of seagrasses can affect the diversity and density of fish in a water. Distribution of seagrass vegetation in the waters of the village of Akoon is quite extensive with conditions that are also quite diverse, allowing the many types of fish that live in the seagrass beds in the village of Akoon. Nusalaut, Central Maluku Regency. The results of the study describe the types of fish that are in the seagrass beds in the village of Akoon are 17 species with 80 individuals. Fish species diversity index in the seagrass beds in Akoon village, Nusalaut sub-district was 2,434, evenness index was 0.859, and wealth index was 1,900. Fish in seagrass beds in Akoon village, Nusalaut sub-district have a density value of 0.2 ind / m2. Keywords: diversity, density, seagrass fish, Akoon Village


Author(s):  
Robert S. Buhdy ◽  
Norce Mote ◽  
Edy HP. Melmambessy

Fisheries production in the mainland waters of Mappi Regency is larger (27.48%) compared to marine fisheries (8.53%).  Edera District is one of the districts in Mappi District which contributes to the potential of fisheries specifically for mainland waters. This study aims to determine the diversity of fish species in the Digoel River, Edera District, Mappi Regency. The fishing gear used is gill nets, stocking nets, fixed lines, fishing rods and spoon nets (tanggo).  The study was conducted in August - October 2017 using the survey method. The variables analyzed were the species diversity index, evenness index, dominance index and relative abundance index.  The results of the study obtained 28 species of fish which were divided into 8 orders of 20 families and 28 species. The value of the diversity of fish species is moderate, the Evenness value is relatively stable and evenly distributed, the type of dominance in Di shows that there is no dominance of species and the relative abundance of Kr is medium. Keywords:  Digoel River; Diversity; Evenness; Dominance and Relative Abundance.


2019 ◽  
Vol 4 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Dian Samitra ◽  
Zico Fakhrur Rozi

  Fish diversity in the Lakitan River is not well recorded, even though the data is important to add information about the diversity of freshwater fish in Indonesia. This study aims to study fish composition and ecological index in the Lakitan River. The study was conducted in the Lakitan River, Musi Rawas Regency, South Sumatra Province. The method used was the survey method. The direct sampling was done at 5 stations, the numbering of stations followed the direction of the river from upstream to downstream. The data at each station are tabulated based on species, family and order. Data analysis in-cludes a diversity index, evenness index, dominance index, and sim-ilarity index. The fish caught during the study were 418 individuals, which were identified into 20 species and 11 families. Barbonymus gonionotus is the most captured species in the Lakitan River. Cypri-nidae is the most captured family (9 species). The highest diversity index was found at station 5, with the number of fish collected was 16 species. The evenness index at 5 stations showed the equivalent species distribution and stable communities. The domination index at 5 stations were at, low category. The similarity index between sta-tions in Lakitan River which ranging from 0.65 – 0.97. These results indicate that fish diversity in the Lakitan River medium biodiversity. 


2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Andri Maulidi ◽  
Mohamad Jakaria ◽  
Nurul Fitriyana ◽  
Muhammad Rizki

A large number of forests at Munggu Village, Ngabang District, Landak Regency have been converted into oil palm and rubber plantations. As consequences, natural habitats in the region have been fragmented and species diversity, including herpetofauna, has been decreased. This study aimed to assess herpetofauna diversity in four different habitats in Munggu Village: (1) forests, (2) Landak river, (3) tourist areas, and (4) rubber plantations. Data collection used Visual Encounter Survey (VES) for 8 days.[u1]  The results showed that the total of 24 herpetofauna species: 15 amphibians’ species (4 families) and 9 reptiles species (6 families) have been recorded from the four sampled areas. Of the four locations 11 species were found in river habitat in the forest, 4 species in the location of Landak river, 8 species in tourism sites and 9 species in rubber plantations. The Shannon-Wiener (H') diversity index in all four habitats was classified as moderate. In the river location in the forest, H' was 2.14, in the Landak river it was 1.28, in the tourism sites it was 1.71 and in the rubber plantation it was 1.87. However, the evenness index (E) for the herpetofauna community in all four locations was >0.80. Habitat loss and habitat destruction are among the causes of decline in amphibian and reptile populations. Knowing the diversity of herpetofauna, it is hoped that the community and stakeholders can collaborate to secure the herpetofauna in Munggu Village.


2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Yosef Joni ◽  
Erianto Erianto ◽  
Sarma Siahaan

Riam Solang tourism object is one of the natura attractions in Senakin Village Sengah Temila district Landak Regency with area 16,192.98 (161 km). Birds are one component of the ecosystem that has an importan role in supporting the life cycle of an organism. This situation can be seen from the food chains and webs of life that make up living systems with other ecosystem components such as plants with insects The purpose of this study was to obtain data on the diversity of diurnal bird species in the Riam Solang ecotourism Sengah Temila, District Landak Regency West Kalimantan Province. The results of the study are expected to be able to provide scientific data and information on the diversity of diurnal bird species in the Riam Solang canyon ecotourism Sengah Temila, District Landak Regency West Kalimantan Province. The results of diversity diurnal bird species in Riam Solang that in first path the diversity index was 2.8695, in the second path the diversity index was 2.7129, in the third path the diversity index was 2.6944, and in the fourth path the diversity index is 2.7754. While the results of type evenness index in the frist lane was 0,9018, in the second path the evenness index is 0,8911, in the third path evenness index is 0,8994, and in the fourth path evenness index is 0,8979. The results of the type wealth index found at the study site are in first path the wealth type index is 4,6656, in the second path the wealth index 4,2386, in the third path wealth index 4,1318, and in the fourth path the wealth type index is 4,4504.Keyword: Diurnal Bird, Diversity, Riam Solang, Species


2019 ◽  
Vol 7 (3) ◽  
Author(s):  
. Mazlan ◽  
Siti Masitoh Kartikawati ◽  
. Burhanuddin

Arboreal ants are ants that do activities and spend their lives in tree. Roles of this organism are to serve as decomposers, pollinators, predators and indicators. Ant species diversity constitutes a chain for ecosystem stability. They are responsible as decomposing insects making their presence becomes ecologically vital. Research on ant species diversity in mangrove forest remains insufficient. One of the reasons possibly is that fact that mangrove is an ecosystem which is affected by sea tide. This research aims at gathering data about ant species diversity based on types of mangrove forest vegetation located in Setapuk Besar, Singkawang City. The research used a survey method by observing types of trees whose diameter was 10 cm and above. Additionally, the tree should have a large number of ants. The data was collected through fly sheet trap set under, in the mid, and above the tidal level. Findings revealed 6 types of ants consisting 4 sub-families in 6 types of the trees i.e. Rhizopora mucronata, Avicennia lanata, Hibiscus tiliaceus, Terminalia capatta, Nypa fruticans, and Bruguiera cylindrical.. Based on the diversity index of those 6 types of trees, the divercity of arboreal ants spesies could be categorized low (H’<1). The highest diversity was nypa fruticans vegetation by 0.325. This was because the tree contains sugar level and carbohydrate. The lowest diversity was Hibiscus tiliaceus and Termialia catappa. The H’ value was 0. One of the reasons was because only one species of ants can be found in both trees, namely Oecophylla smaragdina.Keywords: Arboreal Ants, Diversity, Mangrove, Singkawang


2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Furwoko Kirno ◽  
Dwi Astiani ◽  
Hanna Artuti Ekamawanti

The activities of the community around the peat swamp forest cause disruption of the ecosystem from the sustainability of the forest area's resources. Land clearing and peatland fires also affect the presence of ferns. The new environmental conditions due to changes in land cover cause ferns to be affected by these changes. Kuala Dua Village Kubu Raya Regency has secondary peat swamp forest and open peat land due to fires 3-4 years earlier so it is overgrown with a variety of new types of flora, one of which is a type of fern. The objective of the study is to describe species diversity of ferns and their site conditions in secondary peat swamp forests and open peatlands of Kuala Dua Village, Kubu Raya District. This research was conducted with survey method using multiple plot samples. The plots determination was done by purposive sampling which was taken place on the site where there were many species of ferns land. Three plots were on each land covered condition with a plot size of 5 m x 5 m that divided into 25 of a 1 m x 1 m sub plots. The results show that 5 species of ferns found in peat swamp forest and 4 species of ferns were found on open peatlands. The species that has the highest INP value in the forest was Asplenium belangeri and the species that has the INP value in open peatland was Nephrolefis falcata. Dominant Index, Spesies Diversity Index and Spesies Abudance Index were 0,12 and 0,18; 0,30 and 0,36; 0,51 and 0,52 on the forest and open peatland respectively. The Similarity Index value (IS) of ferns in secondary peat swamp forest and open peatland is 44%. The study shows dissimility of species fern in peat swamp forests and open peatlands.Keywords: Open peatland, Pteridophyta, secondary peat swamp forest


2021 ◽  
Vol 267 ◽  
pp. 01035
Author(s):  
Ziqi Zhang ◽  
Lei Yang ◽  
Dongxu Han ◽  
Hongyan Shen

An investigation of phytoplankton community and water quality for M River was conducted in December 2019.The results showed that 38 species of phytoplankton belonging to 6 phyla and 26 genera were collected. Among them, Bacillariophyta is the richest species, which accounted for 34.21%, followed by Cyanophyta with 26.32% and Chlorophyta with 28.95%. The density of phytoplankton was 63.0*106 inds/L which indicated as eutrophic water body. The highest density was Bacillariophyta, accounting for 51.03%. The Shannon-Wiener diversity index (H’) varied from 1.34 to 2.24, the Margalef Species diversity index (d) varied from 2.71 to 3.85, and the Pielou evenness index (J) varied from 0.38 to 0.67. According to the integrative analysis results of H’, d and J, M River water quality belongs to oligo-polluted, but individual sites belong to meso-polluted.


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