scholarly journals Kajian Struktur Komunitas Krustasea Pada Kondisi Lingkungan Mangrove Di Desa Tireman Kabupaten Rembang

2020 ◽  
Vol 9 (4) ◽  
pp. 393-398
Author(s):  
Via Jeanieta Berliana Ardyatma ◽  
Sunaryo Sunaryo ◽  
Hadi Endrawati
Keyword(s):  
Environmental Parameters ◽  
Distribution Patterns ◽  
Research Station ◽  
Nursery Ground ◽  
Ecological Functions ◽  
Purposive Sampling ◽  
Feeding Ground ◽  
Plot Sampling ◽  
Mangrove Vegetation ◽  
Sampling Plot

ABSTRACT: Mangrove ecosystems are ecosystems located in coastal areas that are affected by tides so that the bases are always flooded. Mangroves have ecological functions that can support the growth of organisms in them. The ecological functions include nursery ground, feeding ground, and spawing ground for organisms living in it, one of which is crustaceans. The Rembang coastal area is used by the surrounding community to change the function of mangrove vegetation land into a pond area so that it can affect the existence of crustaceans. This study aims to determine the structure of the crustacean community including composition, abundance, diversity, uniformity, dominance, and distribution patterns of mangrove vegetation in Tireman Village, Rembang District, Rembang Regency. The study was conducted in April - May 2019. The method of determining the location using purposive sampling. Sampling uses a qualitative method with a 5x5 meter sampling plot with three repetitions. The material used is crustacean community structure data and environmental parameters. The results obtained were found 10 types from 4 families originating from 2 infra-orders (Brachyura and Anomura). The highest abundance is found in Station B of 1.59 individuals / m2. Diversity individuex is low to moderate (H '= 0.98 - 1.28) and uniformity individuex is low (e = 0.21 - 0.27), and there is no dominance at each research station (C = 0.34 - 0.47). The type of distribution pattern that is found is clustered (clumped). ABSTRAK: Ekosistem mangrove merupakan ekosistem yang terdapat pada daerah tepi pantai yang dipengaruhi oleh pasang surut air laut sehingga dasarnya selalu tergenang air. Mangrove mempunyai fungsi ekologi yang dapat menunjang pertumbuhan organisme yang ada di dalamnya. Fungsi ekologi tersebut meliputi nursery ground, feeding ground, dan spawing ground bagi organisme yang tinggal di dalamnya salah satunya krustasea. Wilayah pesisir Rembang dimanfaatkan oleh masyarakat sekitar untuk alih fungsi lahan vegetasi mangrove menjadi areal tambak sehingga dapat mempengaruhi keberadaan krustasea. Penelitian ini bertujuan untuk mengetahui struktur komunitas krustasea meliputi komposisi, kelimpahan, keanekaragaman, keseragaman, dominansi, dan pola sebaran pada vegetasi mangrove Desa Tireman Kecamatan Rembang Kabupaten Rembang. Penelitian dilaksankan pada bulan April – Mei 2019. Metode penentuan lokasi menggunakan purposive sampling. Pengambilan sampel menggunakan metode kualitatif dengan plot sampling 5x5 meter dengan tiga kali pengulangan. Materi yang digunakan adalah data struktur komunitas krustasea dan parameter lingkungan. Hasil penelitian yang diperoleh ditemukan 10 jenis dari 4 famili yang berasal dari 2 infra ordo (Brachyura dan Anomura). Kelimpahan tertinggi terdapat pada Stasiun B sebesar 1,59 individu/m2. Indeks keanekaragaman termasuk kategori rendah hingga sedang (H' = 0,98 – 1,28) dan indeks keseragaman kategori rendah (e = 0,21 – 0,27), dan tidak ada dominansi di setiap stasiun penelitian (C = 0,34 – 0,47). Pola sebaran jenis yang dijumpai yaitu mengelompok (clumped).

scholarly journals Korelasi antara Kelimpahan Kepiting dengan Kerapatan Mangrove di Desa Bedono Kecamatan Sayung Kabupaten Demak Jawa Tengah

2019 ◽  
Vol 8 (3) ◽  
pp. 307-313
Author(s):  
Ardi Ristiyanto ◽  
Ali Djunaedi ◽  
Chrisna Adhi Suryono
Keyword(s):  
Sampling Method ◽  
Nursery Ground ◽  
Mangrove Forests ◽  
Spawning Ground ◽  
Purposive Sampling ◽  
Feeding Ground ◽  
Plot Sampling ◽  
Sampling Locations ◽  
Crab Abundance ◽  
Sampling Plot

ABSTRAK : Hutan mangrove memiliki fungsi ekologis sebagai tempat pemijahan (spawning ground), asuhan (nursery ground), dan mencari makan (feeding ground). Tujuan dalam penelitian ini yaitu untuk mengetahui korelasi antara kelimpahan kepiting dengan kerapatan mangrove di ekosistem mangrove Desa Bedono, Kecamatan Sayung, Kabupaten Demak. Penelitian ini bersifat deskriptif eksploratif dengan pengambilan sampel menggunakan metode kualitatif dan penentuan lokasi sampling menggunakan purposive sampling method. Lokasi penelitian dibagi menjadi tiga stasiun yaitu A (Mangrove dekat muara), B (Tracking mangrove), C (Mangrove dekat Tambak). Sampel diambil dari plot sampling 5 m x 5 m dengan tiga kali pengulangan dan tiga waktu pengulangan di setiap stasiunnya. Hasil penelitian ini ditemukan 7 jenis kepiting yang termasuk ke dalam 4 famili, diantaranya adalah Ocypodidae (Uca vocans dan Uca coarctata), Grapsidae (Metoporgapsus latifrons dan Episesarma lafondi), Varunidae (Metaplax elegans dan Pseudograpsus albus) dan Sesarmidae (Parasesarma rutilimanum). Korelasi antara kelimpahan kepiting dengan kerapatan mangrove menunjukkan bahwa semakin tinggi nilai kerapatan mangrove maka semakin tinggi juga nilai kelimpahan kepiting. Nilai kelimpahan kepiting tertinggi terdapat di stasiun A (27633 ind/ha) dan kelimpahan terendah terdapat pada stasiun B (3833 ind/ha). ABSTRACT : Mangrove forests have ecological functions as a spawning ground, nursery ground, and feeding ground. The purpose of this study is to determine the correlation of an abundance of crabs with the density of mangroves in the mangrove ecosystems of Bedono Village, Sayung District, Demak Regency. This research was descriptive explorative with sampling using qualitative methods and determining sampling locations using a purposive sampling method. The research location is divided into three stations, namely A (Mangrove near the estuary), B (Tracking mangrove), C (Mangrove near the Pond). Samples were taken from a sampling plot of 5 m x 5 m with three repetitions and three repetitions of each station. The results of this study found 7 types of crabs belonging to 4 families, including Ocypodidae (Uca vocans and Uca coarctata), Grapsidae (Metoporgapsus latifrons and Episesarma lafondi), Varunidae (Metaplax elegans and Pseudograpsus albus) and Sesarmidae (Parasesarma rutilimanum). The correlation of the abundance of crabs with mangrove density shows that the higher the value of mangrove density, the higher the abundance of crabs. The highest value of crab abundance was found in station A (27633 ind/ha) and the lowest abundance was found at station B (3833 ind/ha).

scholarly journals DIPTEROCARPACEAE INVENTORY AT KETAMBE RESEARCH STATION, GUNUNG LEUSER NATIONAL PARK

2016 ◽  
Vol 7 (3) ◽  
pp. S83-S85
Author(s):  
Essy Harnelly ◽  
Iqbar . ◽  
Fauziah . ◽  
Agus Sara ◽  
Nir Fathiya ◽  
...  
Keyword(s):  
National Park ◽  
Research Station ◽  
Purposive Sampling ◽  
Number Of Species ◽  
Sampling Plot

This research was about Dipterocarpaceae inventory at Ketambe Research Station, Gunung Leuser National Park. The research was done on July 2015. Determination of sampling plot was using purposive sampling. The parameter observed was species as well as number of species. The result showed that there were 5 species of Dipterocarpaceae found in the sampling plot. All the species found were belongs to tribe of Shoreae namely; Shorea johorensis, Shorea parvifolia, Hopea dryobalanoides, Shorea lepidota, and Parashorea lucida.Key words: Dipterocarpaceae, inventory, Gunung Leuser National Park

scholarly journals Estimasi Simpanan Karbon Pada Ekosistem Mangrove Di Desa Pasar Banggi Dan Tireman, Kecamatan Rembang Kabupaten Rembang

2019 ◽  
Vol 8 (1) ◽  
pp. 62-68
Author(s):  
Riani Mardliyah ◽  
Raden Ario ◽  
Rudhi Pribadi
Keyword(s):  
Carbon Storage ◽  
Sampling Method ◽  
Plant Biomass ◽  
Mangrove Ecosystem ◽  
The Body ◽  
Research Station ◽  
Body Parts ◽  
Ecological Functions ◽  
Purposive Sampling ◽  
Mangrove Trees

Ekosistem mangrove memiliki fungsi ekologis sebagai penyerap dan penyimpan karbon. Mangrove menyerap CO2 pada saat proses fotosintesis, kemudian mengubahnya menjadi karbohidrat dengan menyimpannya dalam bentuk biomasa. Tujuan penelitian untuk mengestimasi simpanan karbon pada tegakan dan substrat mangrove yang berada di Desa Pasar Banggi dan Desa Tireman, Kabupaten Rembang. Pengambilan sampel dilakukan pada bulan Juni - Juli 2018. Metode yang digunakan yaitu purposive sampling method dan eksploratif, dengan dasar pertimbangan berupa jenis, kerapatan serta diameter pohon mangrove. Pengambilan sampel dilakukan di tiga stasiun dengan kondisi rapat, sedang dan jarang. Setiap stasiun penelitian dibagi menjadi tiga plot penelitian, pengukuran diameter pohon dilakukan pada transek ukuran 10 x 10 m, diameter yang di ukur pada setiap plot yaitu hanya kategori pohon (diameter ≥ 5 cm). Berdasarkan hasil penelitian, didapat bahwa simpanan karbon pada tegakan mangrove di Desa Pasar Banggi sebesar 9.620,451 ton/ha, dan Desa Tireman sebesar 4.633,618 ton/ha, sedangkan estimasi simpanan karbon pada substrat mangrove di Desa Pasar Banggi sebesar 920,982 ton/ha dan Desa Tireman sebesar 471,929 ton/ha. Mangrove ecosystems have ecological functions as carbon sinks and stores. Mangroves absorb CO2 during photosynthesis, then convert it to carbohydrates by storing it in the form of biomass in the body parts of mangrove plants. Research on the estimation of carbon stocks is very necessary to support the improvement of world climate. The sampling was conducted on June 2018 until July 2018. This research used  purposive sampling and explorative method, with the consideration of the type, density and diameter of mangrove trees. Conducted in three stations with varying in the mangrove ecosystem conditions. Each research station was divided into three research plots, tree diameter measurements were carried out on 10 x 10 m transects, the diameter measured in each plot was only trees (≥ 5 cm diameter). The result of this research, it is found that carbon storage in mangrove stands Pasar Banggi Village is 9,620,451 ton/ha, and Tireman Village is 4,633,618 ton/ha. While  estimated carbon storage the mangrove substrate in Pasar Banggi Village is 920,982 ton/ha and Tireman Village is 471,929 ton/ha. These result that estimates carbon storages in mangrove stands are greater than estimates of carbon storage on mangrove substrate. The estimation of carbon storage in the mangrove stands increases with increasing of plant biomass and mangrove density, while estimates of carbon storage on the substrate are tsuspected to be more influenced by organic matterial and the location reseach. 

scholarly journals Ekologi Mangrove Di Pesisir Kecamatan Tongas Dan Sumberasih Kabupaten Probolinggo, Jawa Timur

2019 ◽  
Vol 8 (2) ◽  
pp. 218-222
Author(s):  
Dyah Wijaya ◽  
Suryono Suryono ◽  
Nirwani Soenardjo
Keyword(s):  
Environmental Conditions ◽  
Research Finding ◽  
Sampling Method ◽  
Program Planning ◽  
Avicennia Marina ◽  
Rehabilitation Program ◽  
Purposive Sampling ◽  
Breast Height ◽  
Plot Sampling ◽  
Mangrove Vegetation

Komunitas mangrove menempati area diantara darat dan laut yang memiliki kondisi lingkungan berbeda satu sama lain. Tujuan penelitian ini untuk mengetahui struktur vegetasi mangrove dan mengetahui kesesuaian jenis mangrove yang sesuai untuk perencanaan program rehabilitasi mangrove di Desa Bayeman Kecamatan Tongas dan Desa Pesisir Kecamatan Sumberasih Kabupaten Probolinggo. Penelitian dilakukan pada Bulan Maret 2015 sampai Januari 2016. Pengambilan data vegetasi dilakukan dengan metode purposive sampling dan setiap transek dibuat plot sampling. Setiap individu pohon (plot 10 m x 10 m) dan sapling (anakan) (subplot 5 m x 5 m) diidentifikasi dan diukur diameternya setinggi dada (±1,3 m). Sementara seedling (semai) dihitung jumlah masing-masing spesies dan persentase penutupannya (subplot 1 m x 1 m). Hasil penelitian di Desa Bayeman ditemukan 7 spesies mangrove dan 1 jenis spesies di Desa Pesisir. Vegetasi pohon mangrove di Desa Bayeman dan Desa Pesisir berada dalam kondisi baik. Vegetasi Mangrove di Desa Bayeman didominasi spesies Xylocarpus mollucensis dan untuk Desa Pesisir adalah Avicennia marina. Vegetation mangrove occupy the area between land and sea that have environmental conditions differ from one another. The purpose of this studied to know about the structure and composition of mangrove vegetation for rehabilitation program planning in Bayeman Sub-District of. Tongas and Pesisir Sub-Districk Sumberasih, District of Probolinggo , East Java. The studied was conducted in March, 2015 to January, 2016. Vegetation data was done with purposive sampling method and every transect was made with plot sampling method. Each tree (plot 10 m x 10 m) and sapling (subplot 5 m x 5 m) was identified and measured on diameter at breast height (± 1.3 m).  Meanwhile, Seedling calculated the amount of each species and the percentage of cover (subplot 1 m x 1 m). The research finding at Bayeman shows that there are seven mangroves and one mangrove shows in Pesisir. The mangrove vegetation at Bayeman and Pesisir in good conditions. Mangrove vegetation at Bayeman is dominated by Xylocarpus mollucensis and Mangrove vegetation at Pesisir is dominated Avicennia marina .   

scholarly journals Komposisi dan Tutupan Kanopi Vegetasi Mangrove di Perairan Bakauheni, Kabupaten Lampung Selatan

2020 ◽  
Vol 9 (4) ◽  
pp. 444-452
Author(s):  
Ilham Kuncahyo ◽  
Rudhi Pribadi ◽  
Ibnu Pratikto
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Canopy Cover ◽  
Health Condition ◽  
Sampling Station ◽  
Hemispherical Photography ◽  
Mangrove Species ◽  
Purposive Sampling ◽  
Plot Sampling ◽  
Mangrove Vegetation

Kondisi kesehatan vegetasi mangrove yang berada di daratan dan pulau – pulau kecil sangat penting dalam menjaga keseimbangan ekosistem pesisir dan laut. Perbedaan kondisi tumbuh mangrove dapat mempengaruhi dinamika perubahan vegetasi dan tutupan kanopi mangrove. Penelitian ini bertujuan untuk menganalisis struktur, komposisi dan tutupan kanopi mangrove di Perairan Bakauheni, Kabupaten Lampung Selatan. Metode yang digunakan dalam penelitian ini yaitu metode deskriptif. Penentuan titik atau stasiun sampling dengan menggunakan metode purposive sampling. Metode pengambilan data vegetasi mangrove dengan metode plot sampling dan pengambilan data tutupan kanopi mangrove dengan metode hemispherical photography. Penelitian ini dilakukan di 4 lokasi yaitu Desa Kramat (DK), Desa Muara Bakau (DMB), Pulau Rimau Balak (PRB), dan Pulau Kandang Balak (PKB) yang terdiri dari 4 stasiun penelitian. Hasil penelitian menunjukkan bahwa kawasan Perairan Bakauheni yang terdiri dari 4 lokasi peneltiian ditemukan 14 spesies mangrove di dalam plot dan di luar plot penelitian. Nilai Kerapatan mangrove berkisar 966–1634 ind/ha. Nilai Indeks Keanekaragaman (H’) dan Keseragaman (J’) di lokasi penelitian termasuk dalam kategori rendah. Hasil persentase tutupan kanopi mangrove termasuk kategori padat berkisar 72,04±13,18% – 86,41±1,08%. The health condition of mangrove vegetation on land and small islands is very important in maintaining the balance of coastal and marine ecosystems. Differences in mangrove area conditions can affect the dynamics of changes in vegetation and mangrove canopy cover. This study aims to analyze the structure, composition and cover of mangrove canopies in Bakauheni Waters, South Lampung Regency. The method used in this research is descriptive method. Determination of the point or sampling station using purposive sampling method. The method of collecting mangrove vegetation data using plot sampling method and mangrove canopy cover data collection using hemispherical photography method. This research was conducted in 4 locations, namely Kramat Village (DK), Muara Bakau Village (DMB), Rimau Balak Island (PRB), and Kandang Balak Island (PKB) consisting of 4 research stations. The results showed that the Bakauheni Waters area which consisted of 4 research sites found 14 mangrove species inside the plot and outside the research plot. Mangrove density values range from 966-1634 ind/ha. The value of Diversity Index (H') and Uniformity (J') in the study location is included in the low category. The percentage yield of mangrove canopy cover including the dense category ranges 72.04±13.18% - 86.41±1.08%.

scholarly journals Pola sebaran jenis makroalga di zona intertidal perairan Malang Rapat Kecamatan Gunung Kijang, Kabupaten Bintan, Kepulauan Riau, Indonesia

2020 ◽  
Vol 4 (2) ◽  
pp. 65
Author(s):  
Amilia Jamilatun ◽  
Febrianti Lestari ◽  
Susiana Susiana
Keyword(s):  
Intertidal Zone ◽  
Environmental Parameters ◽  
Distribution Patterns ◽  
Quality Parameters ◽  
Research Station ◽  
Factors Affecting ◽  
Line Transects ◽  
Different Characteristics ◽  
Macro Algae

This study aims to determine the distribution patterns, and environmental parameters of macro algae waters in the Intertidal Zone of Malang Rapat waters Gunung Kijang District, Bintan Regency. This research was conducted in October-December 2019. The purposive sampling method was applied to 5 research station based on the different characteristics of each station that found macro algae. Macro algae sampling was carried out at each observation station using line transects. Placing transect lines at every station to collect 3 macro algae along 50 m, the determination of the first plot is based on the first point of finding macro algae that are drawn perpendicular to the coastline with a distance between the lines of 30 m. The results found 8 species of macro algae (seaweed) from 3 divisions namely Caulerpa serrulate, Halimeda opuntia, Chaetomorpha crassa, Sargassum polycystum, Sargassum cristaefolium, Padina australis, Gracilaria salicornia, Galaxaura fastigiate. Distribution patterns of macro algae in the waters of Malang Rapat between -4,212 - 1,708 with the category grouping at station 1 and equivalent at station 2, 3, 4, 5. Each station is dominated by brown algae with the genus Sargassum. Factors affecting the distribution of macro algae in intertidal zone are lights, temperature, pH, current and substrate. All water quality parameters fulfilled the optimum growth requirements of seaweed.

scholarly journals HUBUNGAN KERAPATAN LAMUN DENGAN KELIMPAHAN LARVA IKAN DI PULAU PRAMUKA, KEPULAUAN SERIBU JAKARTA

2016 ◽  
Vol 5 (3) ◽  
pp. 111-118
Author(s):  
Saraswati Saraswati ◽  
Agus Hartoko ◽  
Sasanti Retno Suharti
Keyword(s):  
Sampling Method ◽  
Fish Larvae ◽  
Survey Method ◽  
Nursery Ground ◽  
Aquatic Biota ◽  
Ecological Functions ◽  
Purposive Sampling ◽  
Close Relationship ◽  
Seagrass Ecosystems ◽  
Seagrass Density

ABSTRAKStadia larva merupakan fase awal daur kehidupan bagi ikan. Larva adalah biota perairan yang bersifat planktonik dan termasuk kedalam jenis meroplankton. Ekosistem Padang Lamun di Pulau Pramuka memiliki fungsi ekologis yang cukup penting di wilayah pesisir, dimana ekosistem ini merupakan salah satu daerah asuhan dan daerah mencari makan bagi larva ikan. Adanya perbedaan tingkat kerapatan lamun dan keberadaan makanan dapat memberikan pengaruh terhadap kelimpahan larva ikan. Sehingga hal tersebut menjadi landasan dilakukannya penelitian mengenai Hubungan Kerapatan Lamun Terhadap Kelimpahan Larva Ikan di Pulau Pramuka, Kepulauan Seribu Jakarta. Penelitian ini bertujuan untuk mengetahui kelimpahan larva ikan pada kerapatan lamun yang berbeda dan mengetahui pengaruh kerapatan lamun terhadap kelimpahan larva ikan. Metode yang digunakan adalah metode survei dengan penentuan titik sampling menggunakan metode purposive sampling. Hasil yang diperoleh adalah pada stasiun I tingkat kerapatan lamun padat (34156 individu/100m2) nilai kelimpahan larva ikan sebesar 756 individu/200m2 terdiri dari 8 famili. Stasiun II kerapatan sedang (26410 individu/100m2) nilai kelimpahan larva ikan yaitu 579 individu/200m2 terdiri dari 6 famili, dan stasiun III ketapatan jarang (6321 individu/100m2) nilai kelimpahan larva ikan sebesar 426 individu/200m2 yang terdiri dari 4 famili. Nilai korelasi antara kelimpahan larva ikan dengan kerapatan lamun yaitu sebesar r = 0,772. Berdasarkan hal tersebut dapat disimpulkan bahwa terdapat hubungan yang erat antara kelimpahan dan komposisi famili larva ikan dengan kerapatan lamun. Semakin tinggi nilai kerapatan lamun maka semakin tinggi pula nilai kelimpahan dan komposisi famili larva ikan. Begitu pula semakin rendah nilai kerapatan lamun maka nilai kelimpahan dan komposisi larva ikan juga semakin rendah. Kata Kunci : Kerapatan Lamun; Larva Ikan; Kelimpahan; Pulau Pramuka ABSTRACTLarval stage is the early phase of the life cycle for the fish. The larvae are aquatic biota that are planktonic and included into the type meroplankton. Seagrass ecosystems in Pramuka Island, has important ecological functions in coastal areas, where the ecosystem is one of the nursery ground and feeding ground for fish larvae. The big difference the density of seagrass and the presence of food can influence abundance of fish larvae. Thus, it will be the base for doing this research on The relations between Seagrass Density and Fish Larvae Abundance in Pramuka, Seribu Island Jakarta. This research aims to determine the abundance of fish larvae in different seagrass densities and determine the influence of the seagrass density on the abundance of fish larvae. The method used is survey method in determining the point of sampling using purposive sampling method. The results obtained are at station I the densities in dense seagrass (34156 individuals/100m2) abundance of fish larvae value at 756 individuals/200m2 consisting of eight families. Station II medium density (26410 individuals/100m2) the value of the abundance of fish larvae is 579 individuals/200m2 consisting of 6 families, and station III precision rarely (6321 individuals/100m2) the value of fish larvae abundance at 426 individuals/200m2 consisting of 4 families. The correlation values between the abundance of fish larvae with the density of seagrass in the amount of r = 0,772. Based on the above, we can conclude that there is a close relationship between the abundance and composition of fish larvae families with seagrass density. The higher the density of seagrass, the higher the families abundance and composition of fish larvae. Similarly, the lower the density value then the value of seagrass abundance and composition of fish larvae are also lower. Keywords: Sea Grass Density; Fish Larvae; Abundance; Pramuka Island.

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

2020 ◽  
Vol 13 (2) ◽  
pp. 112-121
Author(s):  
Sudiyar . ◽  
Okto Supratman ◽  
Indra Ambalika Syari
Keyword(s):  
Negative Impact ◽  
Principal Component ◽  
Environmental Parameters ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Random System ◽  
System Method ◽  
Relationship Of ◽  
The Relationship ◽  
Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m²,  The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

scholarly journals Physiological Response of Thallasia hemprichii on Antrophogenic Pressure In Pari Island, Seribu Islands, DKI Jakarta

2017 ◽  
Vol 22 (1) ◽  
pp. 40 ◽  
Author(s):  
Aditya Hikmat Nugraha ◽  
Dietriech G. Bengen ◽  
Mujizat Kawaroe
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Physiological Responses ◽  
Research Station ◽  
Marine Biota ◽  
Nursery Ground ◽  
Thalassia Hemprichii ◽  
Growth Physiology ◽  
Rhizome Growth ◽  
Seagrass Ecosystem

Seagrass ecosystem is one of tropical marine ecosystem and have important function. The function of ecosystem like a feeding and nursery ground for marine biota. Antrophogenic pressure is one of threat for seagrass ecosystem sustainability. This research study about effect antropogenic pressure for seagrass Thallasia hemprichii physiology response in some different location at Great Barrier Pari Island. The physiology response study cover growth, heavy metal bioaccumulation and histology analysis. The result shows that growth of leaf and rhizome Thalassia hemprichii have positif correlation with nutrient consentration in environment. The highest growth of leaf Thalassia hemprichii at 2nd station (4.16 mm.day-1) and the highest growth of rhizome Thalassia hemprichii at 4th station (1.3 mm.day-1). Seagrass can accumulation heavy metal from environment. The highest heavy metal accumulation is Pb. Not correlation between heavy metal consentration in seagrass with heavy metal concentration from environment. Analysis histology result that not damage seagrass tissue in all research station. Keyword : Bioacumulation,Growth,Physiology,Seagrass, Thalassia hemprichiiSeagrass ecosystems is one of the tropical marine ecosystems that have important functions, among others as a feeding and nursery ground for marine life. Anthropogenic stress is one of the threats that may inhibit the survival of seagrass ecosystems. This study examines the effects of anthropogenic pressures on physiological responses of seagrass Thalassia hemprichii at several different locations in Pari Islands. Physiological responses studied were leaves and rhizome growth, bioaccumulation of heavy metals and histological tissue analysis on seagrass. The results showed that the growth response of seagrass has a positive correlation with the nutrients in the environment. Seagrass leaf growth is highest at Station 2 (4.16 mm.day-1) and rhizome growth is highest at Station 4 (1.3 mm.day-1). Seagrass accumulate heavy metals from the environment and accumulation of heavy metals is highest on Pb. There is no correlation between the concentration of heavy metals in the seagrass and environment. The results of histological analysis showed that there was no damage to the tissue of seagrass leaf and rhizome. Keywords : Bio-acumulation, Growth, Physiology, Seagrass, Thalassia hemprichii

scholarly journals MORFOMETRIK LAMUN Thalassia hemprichii BERDASARKAN TIPE SUBSTRAT DI PERAIRAN PANTAI TANJUNG TIRAM, POKA, TELUK AMBON DALAM

2021 ◽  
Vol 17 (2) ◽  
pp. 77-89
Author(s):  
Jessico H Sermatang ◽  
Charlotha I Tupan ◽  
Laura Siahainenia
Keyword(s):  
Environmental Conditions ◽  
Sampling Method ◽  
Environmental Parameters ◽  
Nutrient Content ◽  
Flowering Plant ◽  
Substrate Type ◽  
Thalassia Hemprichii ◽  
Purposive Sampling ◽  
Significant Difference ◽  
Parameters Analysis

Seagrass as a flowering plant can live from muddy substrates to coral fractures. Differences in the characteristics of substrate type, nutrient content and aquatic environmental conditions can affect morphometric seagrass. The purpose of the study was to analyze environmental conditions and nutrient content as well as the morphometric characteristics of T. hemprichii seagrass based on differences in substrate type. This study was conducted in the waters of Tanjung Tiram Coastal, Poka from February-April 2021. Seagrass sampling was using the purposive sampling method. Data analysis was conducted using ANOVA with SPSS. The results of environmental parameters analysis showed that the water conditions of Tanjung Tiram, Poka are still at the tolerance limit intended for seagrass life. The substrate consists of sand substrate, gravel mixed sand substrate and mud substrate. The results of ANOVA showed that there was a significant difference in the content of sedimentary nutrients, especially phosphates in each substrate type and there was a significant difference in morphometric seagrass based on differences in substrate type and nutrient content.   ABSTRAK Lamun sebagai tumbuhan berbunga dapat hidup mulai dari substrat berlumpur sampai dengan patahan karang. Perbedaan karakteristik jenis substrat, kandungan nutrien dan kondisi lingkungan perairan dapat mempengaruhi morfometrik lamun. Tujuan dari penelitian ini adalah menganalisis kondisi lingkungan dan kandungan nutrien serta karakteristik morfometrik lamun T. hemprichii berdasarkan perbedaan tipe substrat. Penelitian ini dilaksanakan di Perairan Pantai Tanjung Tiram, Poka pada Bulan Februari-April 2021. Pengambilan sampel lamun menggunakan metode purposive sampling. Analisis data menggunakan ANOVA dengan SPSS. Hasil analisis parameter lingkungan, menunjukan bahwa kondisi perairan Tanjung Tiram, Poka masih berada pada batas toleransi yang diperuntukan untuk kehidupan lamun. Substrat terdiri dari substrat pasir, pasir campur kerikil dan lumpur. Hasil anova menunjukan bahwa terdapat perbedaan kandungan nutrien sedimen khususnya fosfat secara signifikan pada masing masing tipe substrat dan terdapat perbedaan morfometrik lamun secara signifikan berdasarkan perbedaan tipe substrat dan kandungan nutrien. Kata Kunci: morfometrik, nutrien, substrat, Tanjung Tiram, Thalassia hemprichii

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