scholarly journals DIVERSITY OF LAND ARTHROPODA ON PEOPLE’S PLANTATIONS AT JAWATONGAH VILLAGE, HATONDUHAN SUB-DISTRICT IN SIMALUNGUN NORTH SUMATERA

2020 ◽  
Vol 6 (3) ◽  
pp. 82
Author(s):  
Gunaria Siagian
Keyword(s):  
Data Analysis ◽  
Relative Abundance ◽  
Diversity Index ◽  
Similarity Index ◽  
Data Retrieval ◽  
Soil Arthropods ◽  
Dominance Index ◽  
The Village

This study aims to determine the diversity, abundance, dominance index, similarity index and inequality of land arthropods in the people's plantations in the village of Jawatongah, Hatonduhan Subdistrict, Simalungun Regency. This research was conducted in October 2019 until November 2019. Sampling was carried out at 5 stations in the People's plantation in Jawatongah Village, Hatonduhan District, Simalungun Regency. Data retrieval is done 3 times using trap traps. From the results of research and data analysis found 9 orders and 1 family consisting of 9 orders and 16 families consisting of: Formicidae, Flatidae, Silphidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Acobiidae, Acrididae, Phrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae. Lachesillidae, Liposcelidae, Pholidae, Araneidae, Ageleidae. The highest relative abundance of soil Arthropods was Tephritidae (71, 486%), the lowest was Liposcelidae and Aranidae (0.367%). The diversity index of the Athropods of the soil ranged from 0.996-1.536. The dominance index ranged from 0, 27155 - 0.53598. From these observations it can be seen that in general the Tephritidae group dominates all places in the study location. For the Arthropod similarity index of land in the smallholder plantations of Jawatongah village, Hatonduhan sub-district, Simalungun Regency, ranged between 55.56% - 80%. Knowledge and knowledge about diversity, abundance, status and distribution of animals are very important for humans and need to be preserved to improve the welfare of society, especially in agriculture.

scholarly journals KEANEKARAGAMAN FAMILI ARTHROPODA TANAH DI KAWASAN HUTAN PENDIDIKAN WANAGAMA KABUPATEN GUNUNGKIDUL DAERAH ISTIMEWA YOGYAKARTA

2019 ◽  
Vol 1 (2) ◽  
pp. 59-64
Author(s):  
Muhammad Muhibbuddin Abdillah ◽  
Wuri Handayani ◽  
Tatag Bagus Putra Prakarsa
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Soil Arthropods ◽  
Dominance Index ◽  
Evenness Index ◽  
Dominant Individual ◽  
Collection Point ◽  
Special Region

Wanagama Education Forest is the forest made by the ecosystem successions. Wanagama developed on barren hills located at Gunungkidul Province of Yogyakarta Special Region. The succession results providing a new habitat for the wild flora and fauna including soil arthropods. The soil arthropods having an important role in the ecosystem a detritivore etc. This study aimed to knowing soil arthropods diversity at Wanagama. The study conducted at Wanagama Education Forest in December 2017. The soil arthropods collected by six pitch fall trap that was spread at each collection point. Collected specimen by pitch fall trap method then identified and analyzed using diversity, evenness and dominance index. Based on the results, there is 25 family from 13 order of soil arthropods. Based on the data analysis diversity index results are H’=1, 53 and evenness index E=0, 47. The dominant individual is from Formicidae that playing a role as predators at Wanagama. Highest diversity is from Coleoptera order.

scholarly journals The Fish Fauna in Lakitan River, Musi Rawas Regency, South Sumatra

2019 ◽  
Vol 4 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Dian Samitra ◽  
Zico Fakhrur Rozi
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Similarity Index ◽  
Fish Fauna ◽  
Survey Method ◽  
Fish Diversity ◽  
Dominance Index ◽  
Ecological Index ◽  
Direct Sampling ◽  
Evenness Index

  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. 

scholarly journals Sea cucumber community in the coastal area of the Bahoi Village,West Likupang Sub-district, North Minahasa District

2020 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Andia Tri Fritama Lumbu ◽  
Lawrence J. L. Lumingas ◽  
Gaspar D. Manu
Keyword(s):  
Sea Cucumber ◽  
Diversity Index ◽  
Similarity Index ◽  
Sampling Technique ◽  
Distribution Patterns ◽  
Line Transect ◽  
Dominance Index ◽  
Holothuria Scabra ◽  
Research Site ◽  
Holothuria Atra

This research is conducted in the coastal waters of Bahoi Village, West Likupang Sub-district, North Minahasa District with the aims to know the types of sea-related environmental factors in the research site and know the community structure of the sea cucumber including the density, Index of diversity, dominance index, and distribution patterns. Data collection was done by using the line transect method, and sampling technique by using quadrat. The results of the study found 5 species of sea cucumber i.e. Holothuria atra,  Holothuria scabra,  Bohadschia marmorata, Actinopyga echinites, and  Bohadschia vitiensis. The individual density of all species is 0.12 ind/m2, and the diversity index (H ') 0.950. The value of the similarity index/compatibility obtained is e = 0.918. The result of the calculated dominance index of sea cucumber species is 1.0 and the pattern of spreading species of sea cucumber in the research site shows a random spread pattern because the value of dispersion index  (I) approaches 1 (one). Keywords: community; Sea cucumber; Bahoi; Dominance; Diversity.AbstrakPenelitian ini dilakukan di perairan pantai desa Bahoi, Kecamatan Likupang Barat, Kabupaten Minahasa Utara dengan tujuan untuk mengetahui jenis-jenis teripang yang ada di lokasi penelitian dan mengetahui struktur komunitas teripang yang meliputi kepadatan, indeks keanekaragaman, indeks dominasi, dan pola penyebaran. Pengambilan data dilakukan dengan metode line transek, dan teknik pengambilan sampel dengan mengunakan kuadrat. Hasil penelitian ditemukan 5 spesies teripang yaitu Holothuria atra, Holothuria scabra, Bohadschia marmorata, Actinopyga echinites dan Bohadschia vitiensis. Kepadatan individu dari seluruh spesies yaitu 0,12 ind/m2, indeks keanekaragaman (H’) 0,950. Nilai indeks kemerataan/keserasian diperoleh nilai indeks e = 0,918. nilai indeks dominasi spesies teripang diperoleh 1,0 dan pola penyebaran spesies teripang dilokasi penelitian menunjukkan pola sebaran acak (random) dikarenakan nilai indeks dispersi (I) mendekati 1 (satu).Kata Kunci : Komunitas; Teripang; Perairan Bahoi; Dominasi; Keanekaragaman

scholarly journals Assessment and Composition of Fish in the River District Maro Merauke

2018 ◽  
Vol 73 ◽  
pp. 04006
Author(s):  
Edy H.P Melmambessy ◽  
Irianis L. Latuperissa ◽  
Marius Agustinus Welliken ◽  
Nova Suryawati Monika ◽  
Rosa Delima Pangaribuan
Keyword(s):  
Data Analysis ◽  
Species Composition ◽  
Diversity Index ◽  
Survey Method ◽  
Frequency Diversity ◽  
Lates Calcarifer ◽  
Dominance Index ◽  
Gill Net ◽  
Scomberomorus Commerson ◽  
Index Value

Maro River is one of the major rivers in Merauke Regency that has a width of about 43-900 m and length of 300 km. The purpose of this study is to find out the type and composition of fish caught using gill net in Maro River, Merauke Regency. This study was conducted in Maro River, Merauke Regency from May to June 2014. It was conducted using survey method. The data analysis included: species composition, relative abundance, availability frequency, diversity index and dominance index. The results of showed 1,084 fish in 17 species with the following composition; 490 of Kurtus gulliveri species (37,01%), 212 of Eleutheronema tetradactylum species (20,33%), 170 of Polydactylus plebeius species (16,30%), 75 of crassilabris Cinetodus species (7,19%), 64 of Cinetodus froggatti species (6,14%), 37 of Argyrosomus amoyensis species (3,55%), 20 of Mugil cephalus species (1,92%), 15 of Megalops cyprinoides species (1,53%), 15 of Thryssa scratchleyi species (1,4%), 12 of Lebtobrama sp species (1,15%), 9 of Lates calcarifer species (0,86%), 7 of Marilyna meraukensis species (0,67%), 7 of Scomberomorus commerson species (0,67%), 5 of Nibea squamosal species (0,48%), 4 of Rhinoptera javanica species (0,38%), 3 of Harpadon microchir species (0,29%) and 1 of Datnioides campbelli species (0,10%). Based on the availability frequency, there are 37 species with a percentage of 100%, 37 species with 67% and 7 species with 33%. The diversity of fish has a moderate value of 1<H’<3. The obtained dominance index value is close to 0, then it is stated that there is no species found to be dominant.

scholarly journals Abundance and Diversity of Diatom Class Bacillariophyceae as Bioindictaor of Pollution in the Waters of Tanjung Luar Fish Landing Based

2021 ◽  
Vol 20 (3) ◽  
pp. 525
Author(s):  
Niswatul Audah ◽  
Lalu Japa ◽  
M. Yamin
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Similarity Index ◽  
Pollution Level ◽  
Dominance Index ◽  
Systematic Random Sampling ◽  
Species Similarity ◽  
Sample Points ◽  
Abundance And Diversity

Tanjung Luar is coastal water used as a waste disposal area for Fish Landing Based (FLB) activities. However, the condition of the waters with phytoplankton as a bioindicator has never been reporting. This research aims to know Bacillariophyceae in terms of abundance, diversity, and measurement of environmental pollution variables. Methods Sampling at the study location was determined by a systematic random sampling method. Data analysis Bacillariophyceae were determined using formula abundance, diversity index, and dominance index. The index of similarity of species between sample points was determined based on the Bray-Curtis Cluster Analysis. Furthermore, the results showed an abundance of Bacillaryophyceae of 322,000 individuals / L classified as low, the diversity index of Bacillariophyceae of 2.162 classified as moderate, and a dominance index of 0.138 (without dominating species). The results showed that the highest species similarity index was between sample points II and III (57.9%), and the lowest species similarity index between sample points I and II was 23.7%. Water pollution on the waters of PPI Tanjung Luar is classified as moderate pollution level and oligotrophic fertility.

scholarly journals The diversity of trees species in Taman Wisata Alam Ruteng, East Nusa Tenggara

1970 ◽  
Vol 6 (2) ◽  
Author(s):  
DEDE SETIADI
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Similarity Index ◽  
Research Use ◽  
Index Species ◽  
Yield Value ◽  
Evenness Index ◽  
Parallel Direction ◽  
Value Diversity

The objectives of this research were to know important value, diversity index, evenness index, and similarity index species of tree in Taman Wisata Alam of Ruteng. This research use Centered Quatered Method with transek longly is band follow the example of 200 m with parallel direction of contour. At entire all area specified by 7 station of perception that is station I area of Mocok with height 600 m asl, station II area of Ponggeok with height 750 m asl, station III area of Lempang Paji with height 900 m asl, station IV area of Uluwae with height 1050 m asl, station V area of Nggalakleleng 1200 m asl, station VI area of Gololalong with height 1350 m asl, and station VII area of Mano with height 1500 m asl. From result data analysis hence can be taken by some conclusion of the following: (i) In each height perceived by species having highest important value different each other. Species having high important value at entire all station of present is Elaeocarpus floribundus, Podocarpus amarus, Ehretia timorensis, Knema cinerea, Elaeocarpus sp., Prunus sp., and Litsea sp. (ii). Diversity index was between 0,98-1,51, the value enter in low category. (iii). Eveness index of species at entire all station of perception relative is of equal was between 0,847-1,020. (iv). According of similarity index at entire all station which compared of generally lowering. There are no combination of station of perception which compared yield value of similarity index at > 75%.© 2005 Jurusan Biologi FMIPA UNS SurakartaKey words: diversity, trees, Taman Wisata Alam Ruteng, East Nusa Tenggara.

scholarly journals Community Structure of Gastropods in Seagrass Meadows at Coastal Area of Nusi and Gersen, Nabire Regency

2020 ◽  
pp. 89
Author(s):  
Marce Souisa ◽  
Simon P. Leatemia ◽  
Selfanie Talakua
Keyword(s):  
Coastal Waters ◽  
Diversity Index ◽  
Similarity Index ◽  
Seagrass Habitat ◽  
Dominance Index ◽  
Seagrass Meadows ◽  
Physical Chemical ◽  
Seagrass Ecosystem ◽  
Measurement Results ◽  
Chemical Factors

Gastropods plays an important role in the food chain on seagrass ecosystem and its existence are depend on the physical-chemical factors in the seagrass ecosystem. This study aims to determine the density and diversity of gastropods associated in seagrass habitat in Nusi and Gersen coastal waters. The measurement results of some physical-chemical waters variables, are still quite good for the life of gastropods. Species composition of gastropod in Nusi at higher than at the Gersen, but instead of individual density in Gersen more higher than Nusi. Diversity index of gastropods at Nusi station is higher (3,757) than Gersen (3.053), on the contrary the eveness and dominance index are higher at Gersen station than Nusi station. Community similarity index by species is low between the two stations, which indicates that the species of gastropods at both stations is quite different. The influence of human activity and higher utilizatin of gastropods in Nusi has lowered the density of gastropods in seagrass habitat, so it needs awareness efforts on the importance of gastropods and the seagrass habitat for coastal ecosystem.

scholarly journals Coral Fishes At Artificial Reef In Bunaken National Park Arakan, South Minahasa Regency

2017 ◽  
Vol 5 (2) ◽  
pp. 155
Author(s):  
Riezky H. S. Wuwumbene ◽  
Ari B. Rondonuwu ◽  
Victor N. R. Watung
Keyword(s):  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Diversity Index ◽  
Artificial Reef ◽  
Data Retrieval ◽  
Artificial Reefs ◽  
Visual Census ◽  
Reef Fish Species ◽  
The Village

Artificial reefs already placed in the coast of the village of Arakan, South Minahasa regency since June 2015. Artificial reef, that would be the location of research are concrete and iron, mostly be the medium of coral transplantation. The pupose of the research are (1). To know the species coral reef fish (2). To know the number of each species and the density of the coral reef fish (3). To know the structure of coral reef fish communities. Data retrieval be done use with Visual Census Method in the 51 squaremeter area (lenght = 8,5 m, width = 6 m). This research find 15 families with 29 coral reef fish species and 1341  individual. The diversity index of artificial reefs with moderate diversity index and relative abudance is found in species Dascyllus trimaculatus 34,731 %,  Plotosus lineatus 21,593 %, and Dascyllus reticulatus 21,174 %.Keywords: Artificial reef, Community Structure, Arakan. ABSTRAKTerumbu buatan sudah diletakan pada perairan desa Arakan Kabupaten Minahasa Selatan pada bulan Juni 2015. Terumbu buatan yang menjadi lokasi penelitian berjenis beton dan besi, model yang terbuat dari besi lebih banyak diarahkan sebagai media transplantasi karang. Penelitian ini bertujuan untuk (1) Mengetahui kekayaan spesies ikan karang (2) Mengetahui kelimpahan individu dan kepadatan relatif ikan karang (3) Mengetahui struktur komunitas ikan karang. Pegambilan data dilakukan menggunakan metode Sensus Visual dengan luas pengamatan pada terumbu buatan  seluas 51 m2 (panjang = 8,5 meter dan lebar = 6 meter). Penelitian ini menemukan 15 famili dengan 29 spesies ikan karang dan kelimpahan individu total 1341 individu. Indeks keanekaragaman di daerah terumbu buatan dengan nilai indeks keanegaraman yang sedang dengan indeks dominasi rendah dan kelimpahan relatif terdapat pada spesies Dascyllus trimaculatus dengan nilai 34,731 %, Plotosus lineatus dengan nilai 21,593 %, dan Dascyllus reticulatus dengan nilai 21,174 %.Kata Kunci : Terumbu Buatan, Struktur Komunitas, Arakan.

scholarly journals Ecological Index of Fouling Organisms in Different Media In Daruba Morotai Island District

2021 ◽  
Vol 56 (2) ◽  
pp. 375-384
Author(s):  
Djainudin Alwi ◽  
Rinto Muhammad Nur ◽  
Nurafni ◽  
Kismanto Koroy ◽  
Iswandi Wahab ◽  
...  
Keyword(s):  
Diversity Index ◽  
Data Retrieval ◽  
Ecological Indices ◽  
Dominance Index ◽  
Retrieval Method ◽  
Ecological Index ◽  
A Value ◽  
Fouling Organisms ◽  
Floating Pier ◽  
Number Of Individuals

On the port pole is very much found biota attached. The biota is barnacles (Balanus sp). The attachment does not only occur in natural substrates. It may also occur in different means of human interest, such as ships and docks. This research is devoted to macroscopic biofouling, whose attachment is massif on the dock pole. This study aims to determine the species and ecological index of biota fouling in different media in the Daruba Morotai Island Regency. The data retrieval method uses a quadratic with a scale of 20×100 cm2. This study used three media, namely wood media (speedboat wooden pier), iron media (speedboat floating pier), and concrete media (Imam Lastori's main pier). Ecological indices analyzed include abundance, Diversity Index, Uniformity Index, and Dominance Index. The analysis results found the most number of macrobiofouling species in the wood medium (7 species). The largest number of individuals found is Branchidontes sp. (661 individuals). The findings of the study of the maximum macrofouling abundance are found in concrete media with a value of 491. Diversity in all media is classified as medium with a value of H' on wood media 1.22, iron media 1.04, and concrete media 1.34. The uniformity index (E) of all three media indicates the uniformity of broad populations with the maximum E found in concrete media 0.84. The study of dominance in wood media by 0.41, iron media 0.48, and concrete media 0.32 showed that dominance is poor.

scholarly journals Diversity of Arthropods in Different Rice Varieties in Bantul Regency

2020 ◽  
Vol 24 (2) ◽  
pp. 188
Author(s):  
Indah Sri Lestari ◽  
Edhi Martono ◽  
Arman Wijonarko
Keyword(s):  
Diversity Index ◽  
Transition Process ◽  
Research Area ◽  
Dominance Index ◽  
Rice Varieties ◽  
The Family ◽  
Family Level ◽  
High Yielding Varieties ◽  
The Village ◽  
Planting Season

High-yielding varieties are used as one of the technologies to increase rice productivity in Indonesia. Varieties, however, invite the arrival of arthropod during their growing phase. One of the method to manage arthropods during the growing stage is the use of high-yielding varieties. In this trial, IR-64, Ciherang, Situ Bagendit, Mekongga and Mixed Varieties were used. The mixed variety is a combination of IR-64, Ciherang, Situ Bagendit and Mekongga. These rice varieties are the most common varieties used by farmers in Bantul Regency. To collect arthropods, the traps used were sweep net, yellow sticky and pitfall traps. The purpose of this study was to determine arthropod’s diversity, evenness and dominance in different rice plant varieties in one planting season. The study was conducted in the village of Wijirejo, Pandak, Bantul, Yogyakarta. The observations were conducted in the evening between 16.00–18.00 p.m., with the interval of twice a week for 5 observations. Arthropods were identified up to the family level. This research resulted in the diversity index (Shannon-Winner) of 1.97–2.82 which is categorized as medium, the evenness index of 0.61–0.71, categorized as medium and the dominance index of 0.10–0.22, categorized as lower level. The ecosystemof the research area was unstable in diversity, evenness, and dominance due to the transition process, and it took quite some times to stabilize the rice fields. Therefore, a more thorough research is still necessary, especially for the ricegrowing season to follow.

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