Abundance and Diversity of Diatom Class Bacillariophyceae in the Waters of Tanjung Luar Fish Landing Based

Diatom class Bacillariophyceae are world wide distribution and commonly dominated the phytoplankton community. The community of diatom class Bacillariophyceae of the waters Tanjung Luar Fish Landing Based (FLB) has never been reported. This study aims to determine the abundance and diversity of diatom class Bacillariophyceae. The sampling sites were determined by using a systematic random sampling method. Data of diatom class Bacillariophyceae were analyzed for species abundance, species diversity index and species dominance index calculations. The results showed, that the abundance of diatom class Bacillariophyceae species were 322.000 ind/L (low category), the species diversity index of diatom class Bacillariophyceae was 2.162 (moderate category), and the species dominance index was 0.138 (none of species dominance).

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KEANEKARAGAMAN JENIS GASTROPODA PADA EKOSISTEM HUTAN MANGROVE DESA SEBUBUS KECAMATAN PALOH KABUPATEN SAMBAS

JURNAL HUTAN LESTARI ◽

10.26418/jhl.v7i2.34561 ◽

2019 ◽

Vol 7 (2) ◽

Author(s):

Lisa Ernawati ◽

M Sofwan Anwari ◽

M Dirhamsyah

Keyword(s):

Species Diversity ◽

Mangrove Forest ◽

Diversity Index ◽

Species Abundance ◽

Mangrove Ecosystem ◽

Survey Method ◽

Species Diversity Index ◽

Dominance Index ◽

Species Dominance ◽

Mangrove Ecosystems

Gastropod is one the mollusk phylum that can adapted at the mangrove ecosystem. Gastropod are organisms that have an ecological role as forming detritus. The study aimed to examine species diversity of gastropods in the mangrove forest ecosystem of Sebubus Village, Paloh District, Sambas Regency. The study was conducted in April 2019, using the survey method. Observations found 6 families and 16 species of gastropods in the mangrove ecosystem. Gastropods species are Chicoreus capucinus, Nerita balteata, Neritina cornucopia, Nerita violacea, Cerithideopsilla alata, Cerithidiopsis quoyii, Cerithidea obtusa, Littoraria scabra, Littoraria undulata, Littoraria carinifera, Nassarius dorsatus, Cassarius dorsatus, Cassidula aurisfelis, Ellobium aurisjudae, Cassidula nucleus, Pythia plicata, and Ellobium gangeticum. Species diversity index of gastropod in zone 1 = 0.83, zone 2 = 0.73 and zone 3 = 0.79 in the low category. Species abundance index of gastropod in zone 1 = 15.3, zone 2 = 10.5, zone 3 = 15.8. Species evenness index of gastropod in zone 1 = 0.32, zone 2 = 0.30 and zone 3 = 0.30 categorized as low. Species dominance index of gastropod in zone 1 = 0.20, zone 2 = 0.28 and zone 3 = 0.25 are categorized as low. Species similiarity index of gastropod in zone 1 and 2 = 91.67%, zone 2 and 3 = 80.00%, zone 1 and 3 = 81.48 are categorized very high.Keywords: Diversity, Gastropods, Mangrove Ecosystems

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

JURNAL BIOLOGI TROPIS ◽

10.29303/jbt.v20i3.2343 ◽

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.

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PERAN REFUGIA SEBAGAI MEDIA KONSERVASI ARTHROPODA DI LAHAN PADI DESA DELIKSUMBER

VIABEL Jurnal Ilmiah Ilmu-Ilmu Pertanian ◽

10.35457/viabel.v15i2.1626 ◽

2021 ◽

Vol 15 (2) ◽

pp. 17-32

Author(s):

Ari Wijayanti ◽

Wiwin Windriyanti ◽

Noni Rahmadhini

Keyword(s):

Species Diversity ◽

Sampling Method ◽

Diversity Index ◽

Insect Pest ◽

Species Diversity Index ◽

Dominance Index ◽

Evenness Index ◽

Yellow Traps ◽

Richness Index

Rice is basic neet for Indonesia people. East Java experienced decrease rice production 2% in 2014, the problem was insect pest. Insecticides are dangerous that replaced use refugia attracting biological agens. Purpose of the research to discover the role of refugia as conservation medium in suppressing pets attacks and increasing the diversity arthropod populations in rice fields. This study uses a direct insect sampling method and uses traps such as sweep nets, yellow traps, pitfall traps and light traps. Identification of insects using an introduction to the study insect and iNaturalist. Analysis of the observational data quantitatively by calculating the species diversity index (H’), evenness index (E), Richness index (R) and dominance index (C) then tabulated using excel. observations indicate the number of insects found on land A (rice with refugia) was 5661 individuals consisting of 12 ordo, 61 family and 94 species. Meanwhile on land B (rice without refugia) was 3,198 individuals consisting of 11 ordo, 43 family and 56 species. Refugia affected the population of biological agens more on land A was 2707 individuals than on land B was 1215 individuals. While the pest population on land A much less as 364 individuals than on land B as 763 individuals. Tabulation from the calculation of the species diversity index as 0.142 and 0.118, the species evenness index as 0.030 and 0.025, the dominance index of 0.0004 and 0.0013 is classified as low, while the species richness index of 10.76 and 6.82 is classified as high.

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Study on the community structure of macrozoobenthos in Kobok and Kao estuaries, Kao Bay, North Halmahera

AQUATIC SCIENCE & MANAGEMENT ◽

10.35800/jasm.0.0.2014.7309 ◽

2014 ◽

pp. 62

Author(s):

Najib Hi Talib ◽

Lawrence J.L Lumingas ◽

Markus T Lasut

Keyword(s):

Community Structure ◽

Species Diversity ◽

Diversity Index ◽

Factorial Correspondence Analysis ◽

Species Diversity Index ◽

Dominance Index ◽

Sediment Types ◽

As Species ◽

Evenness Index ◽

Community Variables

This study aims to assess the community structure of macrozoobenthos in the estuary of Kobok and Kao rivers, Kao Gulf waters. Sampling was carried out in October 2014 at 10 sampling stations in both estuaries. Variables examined in this study were community variables, such as species composition and abundance, including species diversity index Shannon-Wiener (H '), species richness (SR) index, evenness index (J'), Berger-Parker dominance index (d) and 'assemblage' (group) of the macrozoobenthos using multivariate analysis such as classification and analysis of factorial correspondence analysis (AFK). This study obtained a total of 757 individuals of 61 species. Diversity Index (H ') ranged from 1.62 to 3.96, Evenness index (J ') from 0.63 to 1.26., richness (SR) index ranged from 2.83 to 4.45 and dominance index (d) 0.16 to 0.47. Classification analysis separated 4 interconnecting groups at the station or resident species that were in the similar sediment types. Correspondence Factorial Analysis for the station variables mostly responsible for the axial formation was stations mostly contributing to the formation of axes as the characteristic station of the axes, because it had relatively high contribution. Penelitian ini bertujuan untuk menilai struktur komunitas makrozoobentos di muara Sungai Kobok dan muara Sungai Kao perairan Teluk Kao. Pengambilan sampel dilaksanakan pada bulan oktober 2014 pada 10 stasiun sampling di kedua muara. Variabel yang dikaji dalam penelitian ini adalah variabel komunitas seperti komposisi dan kelimpahan spesies termasuk indeks keanekaragaman spesies Shannon-Wiener (H’), indeks kekayaan spesies (SR), indeks kemerataan spesies (J’), indeks dominasi Berger-Parker (d) serta ‘assemblage’ (grup) makrozoobentos dengan menggunakan analisis multivariate seperti analisis klasifikasi maupun analisis faktorial koresponden (AFK). Penelitian ini diperoleh total 757 individu yang termasuk dalam 61 spesies. Nilai Indeks Keanekaragaman (H’), berkisar dari 1.62-3,96. Nilai Indeks Kemerataan Spesies (J’), berkisar dari 0,63-1,26. Nilai Indeks kekayaan spesies (SR), berkisar dari 2,83-4,45 dan Nilai indeks dominasi (d), berkisar dari 0,16-0,47. Analisis klasifikasi telah memisahkan 4 grup yang saling berhubungan pada stasiun maupun spesies penghuni yang memiliki kemiripan dalam tipe sedimen. Sedangkan Analisis Faktorial Koresponden untuk variabel stasiun yang paling bertanggungjawab terhadap pembentukan sumbu-sumbu adalah (kontribusi absolut). Stasiun-stasiun yang paling berkontribusi dalam pembentukan sumbu juga sebagai stasiun karakteristik sumbu tersebut, karena memiliki kontribusi relatif yang juga tinggi.

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Kelimpahan dan Keanekaragaman Kupu-kupu di Kawasan Taman Nasional Gunung Merbabu, Jawa Tengah

Bioma Berkala Ilmiah Biologi ◽

10.14710/bioma.18.2.173-179 ◽

2016 ◽

Vol 18 (2) ◽

pp. 173

Author(s):

Dian Ratna Sari ◽

Mochamad Hadi ◽

Rully Rahadian

Keyword(s):

National Park ◽

Sampling Method ◽

Diversity Index ◽

Species Abundance ◽

Habitat Diversity ◽

Mountain Forest ◽

Habitat Types ◽

Key Word ◽

Abundance And Diversity ◽

Forest Habitats

Butterflies are insects that have very important role in the ecosystem, they are as a pollinator of plants. Butterfly also can be used as a bio-indicator of environmental quality. This study aims to determine the species abundance and diversity of butterflies in the area of Merbabu Mountain National Park. This research was conducted in September and November 2016 in four habitat types, i.e., mixed forests, pine forests, mountain forests and streams. The study was conducted using a purposive sampling method. The data analysis used abundance index and diversity index. There are 454 individuals wich includes 61 species and 6 families. There are 11 dominant species of butterflies in Merbabu Mountain National Park, but only Ypthima pandocus that dominates in all the habitat that studied. Mycalesis moorei and Mycalesis sudra are dominant in all forest habitats and its not dominant in the habitat of the streams. Papilio peranthus and Parantica albata are dominant and only in mountain forest habitat. Diversity of butterflies in the area of Merbabu Mountain National Park can be categorized as moderate with the diversity index from 2,11 – 3,37. Key word: Butterflies, diversity, abundance, Merbabu Mountain National Park

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KEANEKARAGAMAN JENIS IKAN DI SUNGAI DIGOEL DISTRIK EDERA KABUPATEN MAPPI

Musamus Fisheries and Marine Journal ◽

10.35724/mfmj.v1i1.1503 ◽

2018 ◽

pp. 1-14

Author(s):

Robert S. Buhdy ◽

Norce Mote ◽

Edy HP. Melmambessy

Keyword(s):

Species Diversity ◽

Relative Abundance ◽

Fish Species ◽

Diversity Index ◽

Survey Method ◽

Fishing Gear ◽

Species Diversity Index ◽

Dominance Index ◽

Abundance Index ◽

Evenness Index

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.

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KEANEKARAGAMAN DAN KOMPOSISI IKAN PADA KONDISI PASANG DAN SURUT DI MUARA SUNGAI KELAY KABUPATEN BERAU KALIMANTAN TIMUR

Jurnal Pendidikan Matematika dan IPA ◽

10.26418/jpmipa.v10i2.25868 ◽

2019 ◽

Vol 10 (2) ◽

pp. 11

Author(s):

Yudistira Yudistira ◽

Jusmaldi Jusmaldi ◽

Medi Hendra

Keyword(s):

Species Diversity ◽

Fish Species ◽

Sampling Method ◽

Diversity Index ◽

High Tide ◽

Similarity Index ◽

Wiener Index ◽

Dominance Index ◽

East Kalimantan ◽

Evenness Index

Research on diversity and composition of fish at low tide and high tide condition in downstream Kelay River, District Berau, East Kalimantan is not yet know. The purpose of this research was to determine diversity and composition of fish that present at low tide and high tide condition in downstream Kelay River. In research using purposive sampling method and various sizes gill nets used. Results of this research shows that fish were collected at three locations sampling in downstream Kelay River consist of 14 species, 9 families, and 953 individuals. Based on the number of species, diversity Shannon-Wiener index and dominance index has stable of communities, with high value of diversity index (H'=1.975), high evenness index (E=0.749), and low value of dominance index (D= 0.173). The number of fish species found at low tide were 11 species and at high tide were 12 species. The similarity index of fish species at low tide and high tide condition were 64.3%.

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Tide pools diversity in Bojonglarang-Jayanti Nature Reserve, West Java, Indonesia

Ocean Life ◽

10.13057/oceanlife/o010201 ◽

2017 ◽

Vol 1 (2) ◽

pp. 43-48 ◽

Cited By ~ 1

Author(s):

TRI DEWI KUSUMANINGRUM PRIBADI ◽

AUFA AULIA KANZA

Keyword(s):

Species Diversity ◽

Water Temperature ◽

Air Temperature ◽

Nature Reserve ◽

Diversity Index ◽

Extreme Conditions ◽

Species Diversity Index ◽

Dominance Index ◽

West Java ◽

Abiotic Parameters

Pribadi TWK, Kanza AA. 2017. Tide pools diversity in Bojonglarang-Jayanti Nature Reserve, West Java, Indonesia. Ocean Life 1: 43-48. Tide pools are micro-ecosystem in the intertidal zone, which have unique characteristics such as extreme water temperature range. Organisms living in it can survive by adapting to these extreme conditions. Study on community structure of macroinvertebrate in tide pools and along with the influencing environmental conditions has been carried out to observe species that can survive in such extreme conditions. Quantitatively, descriptive study on biotic and abiotic parameters was done by observing the tide pools, which passed 500-meter transect line parallel to the shoreline. Analyses of the biotic parameters included varied species, dominant species, species richness, species diversity index, dominance index, important value index, and macroalgal coverage. The observed abiotic parameters comprised water and air temperature, light intensities, conductivity, salinity, depth of tide pools in low tide conditions, extensive of tide pools, pH, and DO (Dissolved Oxygen). Results in physical parameter measurements showed that the water temperature, light intensity, and conductivity were at the high category, while air temperature, salinity, and depth of water were in the normal category. The results showed 31 species of macroinvertebrate of 21 families and 6 classes, with the highest relative abundance on Ophionereis dubia by 0.56. Macroalgal was dominated by Sargassum polycystum with 7.62% coverage. Species Diversity Index of macroinvertebrate was 2.53, with Dominance Index 0.85. These indexes indicated the dominance of particular macroinvertebrate species, which have the tendency to be adaptive to extreme water temperature range.

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The Community of Chlorophyta as Bioindicator of Water Pollution in Pandanduri Dam District of Terara East Lombok

JURNAL BIOLOGI TROPIS ◽

10.29303/jbt.v20i3.2344 ◽

2021 ◽

Vol 20 (3) ◽

pp. 546

Author(s):

Zikriah Zikriah ◽

Imam Bachtiar ◽

Lalu Japa

Keyword(s):

Water Pollution ◽

Diversity Index ◽

Selenastrum Capricornutum ◽

Species Diversity Index ◽

Dominance Index ◽

Species Dominance ◽

Community Activities ◽

A Value ◽

Wiener Diversity Index

The Pandanduri Dam has a function as a support for agricultural irrigation water and also supports community activities so that it will affect the quality of its waters. The quality of the water needs to be analyzed because it can affect the aquatic ecosystem. This study aims to determine the level of water pollution in the Pandanduri Dam based on the phytoplankton community from the Chlorophyta Division. This type of research is descriptive exploratory. Sampling was carried out at 5 stations that were haphazardly selected with ecological representativeness consideration. Phytoplankton data were analyzed using the abundance formula, Shannon-Wiener diversity index, PIELOU uniformity index, and Simpson dominance index. The phytoplankton from the Chlorophyta Division found in the Pandanduri Dam were 14 species that are Pediastrum duplex var. Gracillimum, Gonium sp. 1, Gonium sp. 2, Coelastrum reticulatum, Scenedesmus acuminatus, Cosmarium sp., Chlamydomonas nasuta, Chlamydomonas sp., Selenastrum capricornutum, Monoraphidium dybowskii, Monoraphidium contortum, Monoraphidium irregular, Westella botryoides, and Kirchneriella lunaris consisting of 4 orders (Sphaeropleales, Chlorococcales, Chlamydomonadales and Desmidiales) and 10 genera (Pediastrum, Coelastrum, Scenedesmus, Gonium, Cosmarium, Chlamydomonas, Selenastrum, Monoraphidium, Westella, and Kirchneriella). The species diversity index of 2.21 is classified as moderate diversity, the species uniformity index is 0.83 which indicates even species growth, and the species dominance index indicates that no species dominates with a value of 0.12. The level of water pollution in the Pandanduri Dam was found in the moderate pollution category (oligotrophic).

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Fluktuasi Fitoplankton pada Kawasan Konservasi Rajungan Perairan Betahwalang Demak

Jurnal Kelautan Tropis ◽

10.14710/jkt.v22i2.6296 ◽

2019 ◽

Vol 22 (2) ◽

pp. 191

Author(s):

Elsa Lusia Agus ◽

Rudhi Pribadi ◽

Subagiyo Subagiyo

Keyword(s):

Water Quality ◽

Species Diversity ◽

Diversity Index ◽

Phytoplankton Abundance ◽

Species Diversity Index ◽

Dominance Index ◽

Conservation Area ◽

Factors Affecting ◽

Protection Zone ◽

Water Conditions

Phytoplankton is an organism that had an effect on life waters and can be used as the parameters in monitoring water quality. Distribution of phytoplankton in the waters can be for biomonitoring which can be used to make protection zone. This study will examine the distribution and composition of phytoplankton in The crab conservation area in Betahwalang Waters, Demak. This research divided into three stations in estuaries and the sea s. Each sampling was done once a month. Samples were taken using a plankton net. The results found three classes of phytoplankton, namely Bacillariophyceae class, Cyanophyceae class and Dinophyceae class. The number of genera found in the river area (37 genera), at the estuary station as much (38 genera) and the sea station as much (31 genera). Fluctuation in phytoplankton abundance at each station is quite varied. The abundance of phytoplankton in January was 1.030.400 cells/L, in February it was 936.800 cells/L, and in March it was 643.600 cells/L. The highest abundance occurs in the estuary area, then the river and the lowest in the sea. The value of species diversity index (H ') is in the range of 2.57-3.03. Uniformity index values range from 0.86 to 0.94. The dominance index from 0.06 to 0.14. Factors affecting the abundance and dominance of phytoplankton are water conditions and the rainy season. Fitoplankton merupakan organisme yang mempunyai pengaruh besar terhadap kehidupan di suatu perairan baik langsung maupun tidak langsung dan dijadikan sebagai salah satu parameter dalam pemantauan kualitas perairan.Fitoplankton di perairan dapat dijadikan suatu ukuran bahwa Kawasan tersebut dapat dijadikan sebagai zona perlindungan biota.Penelitian ini mengkaji fluktuasi fitolankton pada Kawasan konservasi rajungan di Perairan Betahwalang, Demak. Penelitian ini dilakukan pada 3 stasiun yang terletak disungai, muara sungai, dan laut. Pengambilan sampel dilakukan setiap bulan selama tiga bulan menggunakan planktonnet. Hasil penelitian ditemukan 3 kelas yaitu kelas Bacillariophyceae, Cyanophyceae dan Dinophyceae.Jumlah genus yang ditemukan pada area sungai, muara sungai dan laut berturut-turut 37 genus, 38 genus dan 31 genus. Fluktuasi kelimpahan fitoplankton di setiap stasiun cukup bervariasi.Kelimpahan fitoplankton pada bulan Januari sebesar 1.030.400 sel/L, pada bulan Februari sebesar 936.800 sel/L, dan pada bulan Maret sebesar 643.600 sel/L. Kelimpahan tertinggi terjadi pada daerah muara, kemudian sungai dan terendah di laut. Sedangkan nilai indeks keanekaragaman jenis (H’) berada pada kisaran 2,57-3,03. Nilai indeks keseragaman berkisar 0,86-0,94. Sedangkan indeks dominasi berkisar 0,06-0,14. Faktor yang mempengaruhi kelimpahan dan dominasi fitoplankton adalah kondisi perairan dan musim hujan.

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