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 PERBANDINGAN STRUKTUR DAN KOMPOSISI MAKROALGA DI PANTAI DRINI DAN PANTAI KRAKAL

2020 ◽  
Vol 13 (2) ◽  
pp. 75-86
Author(s):  
Lukman Aziz ◽  
Abdul Razaq Chasani
Keyword(s):  
Random Distribution ◽  
Diversity Index ◽  
Similarity Index ◽  
Distribution Patterns ◽  
Ulva Lactuca ◽  
Morphological Description ◽  
Dominance Index ◽  
Importance Index ◽  
Index Value ◽  
Important Value Index

ABSTRACTDrini and Krakal Beach are two beaches in the Gunungkidul area which are crowded with visitors. The high human activity, directly and indirectly will affect marine organisms in the region, one of them is macroalgae. The purpose of this study is to find out information on diversity and distribution patterns of macroalgae in the Drini and Krakal Coast waters. Data was collected on 15 -17 September 2019. The method used in sampling is the quadratic transect method using a 1x1 m grid plot. At each location 25 plots were taken and then the data were analyzed in the form of important value index, diversity index, similarity index, dominance index and distribution patterns. Morphological description was also carried out for the characterization and manufacture of herbarium for sample identification. For identification, the method used was to compare samples with photographs, sketches, herbarium and descriptions from identification books. Macroalgae found in both locations consisted of 29 species, 23 genera, 21 families, 14 orders and 3 classes. The highest diversity is found in Rhodophyta phyla with 17 species and phylum with the lowest diversity is Heterokontophyta with four species. Drini Beach has a diversity index value and a higher similarity index compared to Krakal Beach. While the dominance index is higher in Krakal Beach. The species with the highest importance index in both locations is Ulva lactuca. On Drini Beach there are 14 species with random distribution patterns and 7 species with cluster distribution patterns while on Krakal Beach there are 16 species with random distribution patterns and 3 species with clumped distribution patterns.Keywords: Distribution Pattern, Diversity, Gunungkidul, Marine MacroalgaABSTRAKPantai Drini dan Krakal merupakan dua pantai diwilayah Gunungkidul yang ramai pengunjung. Tingginya aktifitas manusia, secara langsung manupun tidak langsung akan mempengaruhi organisme laut yang ada di wilayah tersebut, salah satunya makroalga. Tujuan dari penelitian ini adalah untuk mengetahui informasi keanekaragaman dan pola distribusi makroalga yang berada di wilayah perairan pantai Drini dan Pantai Krakal. Pengambilan data dilakukan pada 15-17 September 2019. Metode yang digunakan dalam pengambilan sampel yaitu metode transek kuadrat dengan menggunakan grid plot 1x1 m. Pada setiap lokasi diambil 25 plot kemudian dianalisis datanya berupa indeks nilai penting, indeks keanekaragaman, indeks kesamaan, indeks dominansi dan pola distribusi. Selain itu juga dilakukan deskripsi morfologi untuk karakterisasi dan pembuatan herbarium untuk identifikasi sampel.Untuk identifikasi, metode yang digunakan adalah dengan membandingkan sampel dengan foto, sketsa, herbarium dan deskripsi dari buku identifikasi. Makroalga yang ditemukan di kedua lokasi terdiri dari 29 spesies, 23 genus, 21 famili, 14 ordo serta 3 kelas. Keanekaragaman tertinggi terdapat pada filum Rhodophyta dengan 17 spesies dan filum dengan keanekaragaman terendah yaitu Heterokontophyta dengan empat spesies. Pantai Drini memiliki nilai indeks keanekaragaman dan indeks kesamaan yang lebih tinggi dibandingkan dengan Pantai Krakal. Sedangkan indeks dominansi terhitung lebih tinggi di Pantai Krakal. Spesies dengan indeks nilai penting tertinggi di kedua lokasi yaitu Ulva lactuca. Di Pantai Drini terdapat 14 spesies dengan pola distribusi acak dan 7 spesies dengan pola distribusi mengelompok sedangkan di Pantai Krakal terdapat 16 spesies dengan pola distribusi acak dan 3 spesies dengan pola distribusi mengelompok.Kata kunci: Pola Distribusi, Keanekaragaman, Gunungkidul, Makroalga laut

scholarly journals Diversity and abundance of insects at industrial plantation forest and natural forest ecosystems in Siak, Riau Province

2020 ◽  
Vol 1 (1) ◽  
pp. 28-32
Author(s):  
Asril Asril ◽  
Yossa Istiadi ◽  
Budi Tjahyono
Keyword(s):  
Forest Ecosystem ◽  
Diversity Index ◽  
Similarity Index ◽  
Sampling Technique ◽  
Natural Forest ◽  
Line Transect ◽  
Fluorescent Light ◽  
Plantation Forest ◽  
Species Diversity Index ◽  
Industrial Plantation

The objective of research is to find out the differences and similarities of insect diversity, abundance and composition between in industrial plantation forest (HTI) and natural forest (Arboretum) ecosystems. Field research was carried out in the Rasau Kuning area, Perawang  Barat Regency,  Riau Province, while specimens identification conducted at LIPI Biology Research Center Laboratory in February - March 2019. Line transect sampling technique and fluorescent light traps were used as methods for collecting insects from both two different ecosystems with three replications. The results found five order of insects i.e. Lepidoptera, Hemiptera, Coleoptera, Orthoptera, and Hymenoptera which consisting of  35 species in plantation forest ecosystem, and 26 species in natural forest ecosystem where both ecosystems dominated by Lepidoptera. Statistical analysis of research results show that two average insects species diversity index within both plantation forest (HTI) and natural forest (Arboretum) ecosystems is not different (t = 1,419; p0,05). The similarity index found very similar (23,56%) between both ecosystems. Predatory insects which was found in this study is Sycanus sp. (Hemiptera: Reduviidae) from the order of Lepidoptera.Penelitian ini bertujuan  untuk mengungkapkan perbedaan dan kesamaan keanekaragaman  jenis, kelimpahan, dan komposisi jenis serangga antara di ekosistem hutan tanaman industry (HTI) dengan ekosistem hutan alam (Arboretum). Penelitian lapang dilakukan di areal Rasau Kuning,  Kabupaten  Perawang  Barat, Provinsi Riau, sementara identifikasi specimen dilakukan di Laboratorium Pusat Penelitian Biologi LIPI, pada  bulan Pebruari  -  Maret  2019. Metode sampling  line transect  dan perangkap  cahaya  berflouresen digunakan untuk menangkap serangga di kedua ekosistem tersebut melalui 3 kali ulangan. Hasil studi menemukan 5 ordo serangga yaitu  Lepidoptera, Hemiptera, Coleoptera, Orthoptera, and Hymenoptera, dengan masing-masing  25 spesies terdapat di ekosistem hutan tanaman (HTI) dan 26 spesies di ekostem alam (Arboretum), yang mana keduanya didominasi ordo Lepidoptera. Melalui analisis statistik, hasil penelitian menunjukkan bahwa pada kedua ekosistem tidak terlihat adanya perbedaan indeks keanekaragaman jenis (t =1,419; p0,05). Begitu juga dengan indeks kesamaan menunjukan tingkat yang sangat sama (23,56%) antara kedua ekosistem tersebut. Pada kajian ini juga ditemukan spesies serangga predator yaitu Sycanus sp. ((Hemiptera; Reduviidae) dari ordo Lepidoptera.

scholarly journals STRUKTUR KOMUNITAS TERIPANG (HOLOTHUROIDEA) DI KAWASAN PANTAI DESA ONDONG KECAMATAN SIAU BARAT KABUPATEN SIAU TAGULANDANG BIARO1

2015 ◽  
Vol 2 (3) ◽  
pp. 99
Author(s):  
Syafludin Lagio ◽  
Lawrence J.L. Lumingas ◽  
Gaspar D. Manu
Keyword(s):  
Sea Cucumber ◽  
Marine Invertebrates ◽  
Diversity Index ◽  
Population Decline ◽  
Dispersion Pattern ◽  
Sample Collection ◽  
Dominance Index ◽  
Research Activities ◽  
Holothuria Atra ◽  
Equity Index

Sea cucumbers is a group of marine invertebrates belonging to class  holothuroidea. At this time, the hunting for sea cucumber is not just targetted on the expensive species, but also the cheap one. The exploitation pressure has caused population decline which  can cause changes in their community structure. This research was aimed to understand the types of sea cucumber, analyze the structure of the community sea cucumber which includes the density of individuals, diversity index, the dominance index, interspecific  and the dispersion pattern. Sample collection was done at night at the lowest tide in December, 2013. Based on the research activities in the coastal areas of Ondong, west Siau district, Siau-Tagulandang-Biaro regency, 7 species of holothuroidea were found : Holothuria atra, Holothuria leucospilota, Actinopyga echinites, Actinopyga lecanora, Bohadschia argus, Bohadschia marmorata and bohadschia vitiensis, respectively with mean individual density of 0.797 ind/m2, diversity index (H’ = 1.718), equity index or harmony (e = 0. 883), dominance index (C = 0.218), interspecific association between 7 species forming 5 pairs of positive associations and 16 pairs of negative association andrandomdistribution. Keywords : Structure communities, sea cucumber, Ondong, Sitaro   ABSTRAK Teripangadalah sekelompokinvertebrata lautyang termasuk dalam kelasHolothuroidea. Pada saat ini, perburuanuntukteripangtidak hanyaditargetkanpada spesiesmahal, tetapi jugayang murah. Tekananeksploitasitelah menyebabkanpenurunan populasiyang dapat menyebabkanperubahan pada strukturkomunitasnya. Penelitian inibertujuan untukmemahami jenisteripang, menganalisisstrukturteripangyang meliputikepadatanindividu, indeks keanekaragaman, indeksdominasi, asosiasi antar spesies danpola penyebaran. Pengambilan sampeldilakukanpada malam harisaat surut terendahpada bulan Desember2013.Berdasarkankegiatan penelitiandiwilayah pesisirOndong, kecamatan SiaubaratKabupatenSiau-Tagulandang-Biaro, ditemukan 7spesiesteripang : Holothuriaatra, Holothurialeucospilota, Actinopygaechinites, Actinopygalecanora, Bohadschiaargus, Bohadschiamarmoratadanbohadschiavitiensis,masing-masing dengankepadatan individurata-rata0.797ind/m, indeks keanekaragaman(H' = 1.718), indekskemerataan atau keserasian(e = 0.883), indeksdominansi(C = 0.218), asosiasiantar 7spesiesmembentuk5pasangasosiasipositif dan16pasangasosiasinegatif danpenyebaran acak.   Kata kunci : Struktur komunitas, teripang, Ondong, Sitaro   1Bagian dari skripsi 2Mahasiswa Program Studi Manajemen Sumberdaya Perairan FPIK-UNSRAT 3Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi

scholarly journals The STRUKTUR KOMUNITAS TERIPANG (Holothuroidea) DI PERAIRAN PANTAI DESA NAMTABUNG, KECAMATAN SELARU, KABUPATEN KEPULAUAN TANIMBAR

2021 ◽  
Vol 17 (1) ◽  
pp. 10-17
Author(s):  
Maria Matrutty ◽  
D Wakano ◽  
S Suriani
Keyword(s):  
Community Structure ◽  
Distribution Pattern ◽  
Coastal Waters ◽  
Sea Cucumber ◽  
Diversity Index ◽  
Relative Distribution ◽  
Stable Category ◽  
Holothuria Scabra ◽  
A Value ◽  
Holothuria Atra

Sea cucumber is an invertebrate which is widely used by the community as food and medicine. The purpose of this study is to analyze the community structure of sea cucumber (Holothuroidea) in the coastal waters of Namtabung Village, Selaru District, Tanimbar Islands Regency. The used method to collect sea cucumber samples was the linear quadratic transect method with the number of observation stations as many as three stations, the samples of sea cucumbers obtained will be identified using an identification book. The results showed that there were four species of sea cucumber from the Holothuridea family, genus Holothuria and Bohadschia with the types namely Holothuria scabra, Holothuria edulis, Holothuria atra, and Bohadschia marmorata. Holothuria scabra has the highest density of 0.202 ind / m2. The highest relative abundance was shown by Holothuria edulis at 28.12%. The type of diversity index value is 1.3662 which means moderate diversity, and the dominance index is 0.2533, which means that there are no dominant species. The relative distribution pattern is at ˃ 1, which means that the distribution pattern is clustered. The highest index of importance was Holothuria scabra with a value of 91.07%. Overall, the sea cucumber community structure in the coastal waters of Namtabung Village is in the stable category. The highest index of importance was Holothuria scabra with a value of 91.07%. Overall, the community structure of sea cucumber in the coastal waters of Namtabung Village is in the stable category.   ABSTRAK Teripang merupakan hewan tidak bertulang belakang yang banyak dimanfaatkan oleh masyarakat sebagai bahan pangan dan obat-obatan. Tujuan dari penelitian ini adalah menganalisis struktur komunitas teripang (Holothuroidea) di perairan pantai Desa Namtabung Kecamatan Selaru, Kabupaten Kepulauan Tanimbar. Metode yang digunakan untuk pengambilan sampe teripang adalah metode transek linear kuadrat dengan jumlah stasiun pengamatan sebanyak tiga stasiun, sampel teripang yang diperoleh akan diidentifikasi menggunakan buku identifikasi. Hasil penelitian menunjukan terdapat empat spesies teripang dari famili Holothuridea, genus Holothuria dan Bohadschia dengan jenis-jenis yaitu Holothuria scabra, Holothuria edulis, Holothuria atra, dan Bohadschia marmorata. Kepadatan tertinggi dimiliki oleh jenis Holothuria scabra sebesar 0,202 ind/m2. Kelimpahan relative tertinggi ditunjukkan oleh Holothuria edulis sebesar 28,12%. jenis Nilai indeks keanekaragaman sebesar 1,3662 yang artinya keanekaragaman sedang, dan indeks dominansi 0,2533 yang artinya tidak terdapat spesies yang mendominansi. Pola penyebaran relatif  berada pada angka ˃ 1 yang artinya pola sebaran bersifat mengelompok. Indeks nilai penting tertinggi adalah Holothuria scabra dengan nilai 91,07%. Secara keseluruhan, struktur komunitas teripang di daerah perairan pantai Desa Namtabung berada dalam kategori stabil.   Kata kunci: Struktur komunitas, teripang, indeks ekologi, Desa Namtabung, Maluku    

scholarly journals Jenis–Jenis Teripang (Holothuroidae) di Perairan Kampung Auki Distrik Padaido Kabupaten Biak Numfor, Papua

2018 ◽  
Vol 3 (1) ◽  
pp. 24-31
Author(s):  
Bia C. Pallo ◽  
Nikki Lewaherilla
Keyword(s):  
Sea Cucumber ◽  
Sea Water ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Study Data ◽  
Holothuria Scabra ◽  
Transect Line ◽  
Lack Of Information ◽  
Holothuria Atra ◽  
Index Of Diversity

Sea cucumber is one of important commodity in Papua. Beside play role as protein source, sea cucumber also important cosmetic ingredient. Despite Papua has rich in sea natural resources, until now still lack of information on diversity of sea cucumber in Papua, therefore, this study aim to identify the species and diversity of sea cucumber of one of sea cucumber in sea water of Auki island. The study has conducted during March–April 2010. Transect line was used in this study. Data were collected from 3 station, five transect lines were placed at each station. Abiotic factors such as salinity, temperature and pH of sea cucumber habitat were also collected during the study. Diversity index was calculated by using Shannon-Wienner formula. It was found that index of diversity sea cucumber (H) at 0.23. Sea cucumber species found were Actinopyga lecanora, Actinopyga miliaris, Bohadschia similis, Bohadschia marmorata, Bohadschia vitiensis, Holothuria scabra, Holothuria scabra var versicolor, Holothuria atra, Holothuria argus dan Holothuria coluber. Key words: Species diversity, Sea cucumber commodity, Auki Island.

scholarly journals KEANEKARAGAMAN KEPITING BIOLA PADA KAWASAN HUTAN MANGROVE DESA KARIMUNTING KECAMATAN SUNGAI RAYA KEPULAUAN KABUPATEN BENGKAYANG

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Hanafi Hanafi ◽  
M Sofwan Anwari ◽  
Ahmad Yani
Keyword(s):  
Fiddler Crab ◽  
Diversity Index ◽  
Species Abundance ◽  
Similarity Index ◽  
Sampling Technique ◽  
Fiddler Crabs ◽  
Species Diversity Index ◽  
Transect Line ◽  
Species Similarity ◽  
Index Value

Karimunting Village is a coastal area that has a mangrove with contained several faunas in it, one of which is a fiddler crab. The fiddler crab is a Decapoda ordo and it is included in the Ocypodidae family. This study aims to collect data on the diversity of fiddler crabs in Karimunting Village. The method used in this study is a survey, while the sample is collected by applying the transect line with a purposive sampling technique. The transect line is 500 m length, with a total of three lanes. There are ten plots of 1x1 meter in size in each transect lines to pick up fiddler crabs. Fiddler crabs species were found in 6 species, namely Uca paradussumieri, Uca annulipes, Uca forcipata, Uca rosea, Uca crassipes and Uca tetragonon. The Shannon-Winner species diversity index (H') of fiddler crabs in 1st and 2nd lanes both are categorized medium, while in the 3rd lane is categorized low. The range of values H'=0,3-1,5. The value of species abundance index (Xi) ranges from 3-16.6 ind/m2. The value of evenness index (e) ranges from 0,72 to 0,84. The dominance index value (C) ranges from 0,3 to 0,5 categorized as the absence of the dominant species of fiddler crab. Comparison of species similarity index (IS) for each lane is categorized differently, for the 1st and 2nd lane the index is 91% and categorized as having high species similarity, then in 2nd and 3rd lane the index is 75% and categorized as having a medium species similarity, whereas the index for 1st and 3rd is 60%, therefore it is categorized as having low species similarity.Keyword: Diversity, Fiddler Crab, Karimunting Village

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 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 KEANEKARAGAMAN JENIS BURUNG PADA HUTAN DATARAN RENDAH DI KOMPLEKS GUNUNG BULUSARAUNG TAMAN NASIONAL BANTIMURUNG BULUSARAUNG

PERENNIAL ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 16
Author(s):  
Risma Illa Maulany ◽  
Jumriah Lira ◽  
Amran Achmad ◽  
Nida' Sari Achmad
Keyword(s):  
National Park ◽  
Wildlife Conservation ◽  
Diversity Index ◽  
Bird Species ◽  
Similarity Index ◽  
Bird Diversity ◽  
Line Transect ◽  
Lowland Forest ◽  
South Sulawesi ◽  
Bird Watching

Lowland Forest at the complex of Bulusaraung mountain  in the Bantimurung Bulusaraung National Park is one of important habitat of birds in South Sulawesi. This study aimed to identify bird’s diversity in the Lowland Forest of Bantimurung Bulusaraung National Park for ecotourism purposes. This research was carried out for 2 months between April and May 2018. The data were gathered by using line transect method. The data were analyzed by using Shannon-Weiner diversity index, Evenness index, Margalef species richness index, and Sorensen Similarity index. The result of the study showed that, there were 23 species of birds found in the three lines of observation tracks. There were 19 species  found in Balleanging, 12 species  in Kattokaddaro and 15 species  found in Tompobulu.The highest value of bird diversity index was found in Tompobulu (H '= 1,73) followed by Balleanging (H' = 1,54) and Kattokaddaro routes (H '= 1,43). Therefore, the diversity of bird species in the three observation pathways can be used as objects and attractions in the development of ecotourism based on bird watching in wildlife conservation efforts.

scholarly journals DIVERSITY OF SEA CUCUMBER (ECHINODERMATA: HOLOTHUROIDEA) IN SABU RAIJUA WATERS, SABU ISLAND, EAST NUSA TENGGARA

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Marcelien Dj Ratoe Oedjoe ◽  
Crisca B. Eoh
Keyword(s):  
Water Quality ◽  
Sea Cucumber ◽  
Eating Habits ◽  
Good Condition ◽  
Time Data ◽  
Composition Distribution ◽  
Holothuria Scabra ◽  
Sandy Substrate ◽  
Data Analyses ◽  
Holothuria Atra

Sea cucumber has an ecological function as an organic decomposer in sediment and nutrient producer within a food chain. In addition, sea cucumber has also economic values as fisheries and trade commodities. The pupose of this research was to investigate diversity of sea cucumber in the Sabu Raijua waters, East Nusa Tenggara Province. Samples were collected from Sabu Raijua waters in July -August 2014 using transect quadrant of 1x1 m2 during the lowest low tide in daytime at 13:00-16:00 and nighttime at 18.00-22.00 Central Standar Local Time. Data analyses on the sea cucumber were based on composition, density, distribution, and eating habits. The results showed that there were 8 species that can be classified into 3 families i.e., the Holothuridae (Holothuria nobilis, Holothuria scabra, Holothuria atra, Holothuria edulis, Holothuria impatiens, and Holothuria leucospilato); the Actinopyga (Actinopyga lecanora); and the Bohadshia (Bohadschia argus). The density of Holothuria nobilis was 5.651 individual/m2, Holothuria atra of 4.409 individual/m2, Holothuria scabra of 3.294 individual/m2; Holothuria edulis of 3.102 individual/m2; Bahaschia argus of 2.102 individual/m2; Holothuria mexicana of 2.088 individual/m2; Holothuria impatiens of 2.044 individual/m2; and Actinopyga lecanora of 1.037 individual/m2. Of these sea cucumber species, 17.3% were distributed on sandy substrate and 82.7% on seagrass and coral subtsrates. All sea cucumber species have a posi-tive association with its environment indicating that the water quality was still in a good condition.   Keywords: sea cucumber, association, diversity, composition, distribution

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