Makrobenthos Sebagai Indikator Tingkat Kesuburan Tambak Di Pantai Utara Jawa Tengah

2017 ◽  
Vol 19 (1) ◽  
pp. 38
Author(s):  
Fuad Muhammad ◽  
Munifatul Izzati ◽  
Moch. Abdul Mukid

Makrobenthos that live in the mangrove forest can be used to predict the role or contribution of mangrove ecosystems as a source of natural food for the environment. The aims of research to determine the structure, composition, abundance, diversity makrobenthos of the mangrove ecosystem. The study was conducted by comparing the community structure makrobenthos in pond ecosystem with mangrove vegetation constituent . The location of this study include three areas , Mangunharjo (Semarang), Surodadi (Demak) and  Pasarbangi (Rembang). The result can shows makrobentos species composition is dominated by gastropods ( 18 species) , Bivalvia ( 13 species ) , Polychaeta ( 3 types ) , and crustaceans ( 2 types ) . Cerithium and Littorina scabra is a type that has a high density of the mangrove ecosystem . There are differences in the abundance and diversity of plankton and makrobenthos at three study sites. In general Pasarbangi Coast has the highest abundance and diversity . Macrozoobenthos community structure in mangrove ecosystems that exist in the three study sites in a stable state , species diversity and distribution of the number of individuals of each type of uniform . Pasarbangi area with mangrove vegetation polyculture farms , have high primary productivity . This shows the level of primer productivity at the site is also high . Keywords: community structure, macrobenthos, pond ecosystem

2020 ◽  
Vol 5 (1) ◽  
pp. 64-77
Author(s):  
Djainudin Alwi ◽  
Sandra Hi. Muhammad ◽  
Henderson Herat

Ekosistem mangrove berperan sebagai habitat berbagai jenis satwa, salah satunya yaitu makrozoobenthos. Makrozoobenthos berperan sebagai konsumen primer dan ada pula yang berperan sebagai konsumen sekunder atau konsumen yang menempati tempat yang lebih tinggi. Pada umumnya, Makrozoobenthos merupakan makanan alami bagi berbagai satwa perairan yang berukuran besar. Penelitian ini bertujuan menganalisis kelimpahan makrozoobenthos dan menganalisis struktur komunitas makrozoobenthos di kawasan ekosistem mangrove Daruba Pantai. Penelitian ini dilaksanakan pada bulan November sampai Desember 2019 yang berlokasi di kawasan Mangrove Desa Daruba Pantai. Pengambilan data menggunakan metode sampel kuadrat (Quadrat Sampling) dengan ukuran plot 1x1 m2. Metode analisis data menggunakan analisis indeks ekologi seperti kelimpahan individu, kelimpahan relatif, keanekaragaman jenis, keseragaman dan dominasi. Hasil penelitian menunjukan kelimpahan individu makrozoobenthos tertinggi berada pada stasiun ke I yaitu 33,333 (Ind/m2) dan terendah berada di stasiun I dan II yaitu Polymesoda bengalensis 1,111 (Ind/m2). Sedangkan Kelimpahan Relatif tertinggi ada di stasiun II yaitu Episesarma (0,200 %) dan terendah ada di stasiun I dan II yaitu Polymesoda bengalensis (0,007 %). Hasil analisis indeks ekologi Keanekragaman (H’) stasiun I yaitu (2,146), stasiun II (2,158) dan stasiun III (2,131) termasuk dalam kategori sedang. Indeks Keseragaman (E) pada stasiun I berkisar (0,895), stasiun II (0,900), sedangkan pada stasiun III (0,925) termasuk dalam kategori tinggi. Indeks Dominasi pada stasiun I yaitu (0,132), stasiun II (0,132) dan pada stasiun III yaitu (0,130) termasuk dalam kategori rendah.THE DIVERSITY AND ABUNDANCE OF MACROZOOBENTHOS IN MANGROVE ECOSYSTEMS AT DARUBA VILLAGE COASTAL PULAU MOROTAI REGENCY. Mangrove ecosystems play a role as a habitat for various species of animals, one of which is macrozoobenthos. Macrozoobenthos acts as the primary consumer and some have a role as secondary consumers or consumers who occupy a higher place. In general, Macrozoobenthos is a natural food for a variety of large aquatic animals. This research aims to analyze the abundance of macrozoobenthos and analyze the structure of the macrozoos community in the area of the Daruba Coastal mangrove ecosystem. This research was conducted from November to December 2019 located in the Mangrove area of Daruba Pantai Village. Retrieval of data using the method of quadratic sampling (Quadrat Sampling) with a plot size of 1x1 m2. Data analysis methods use ecological index analysis such as individual abundance, relative abundance, species diversity, uniformity, and dominance. The results showed the highest abundance of macrozoobenthos individuals were at a station I which was 33,333 (Ind / m2) and the lowest was at stations I and II namely Polymesoda bengalensis 1.111 (Ind / m2). While the highest relative abundance in at station II, Episesarma (0.200%) and the lowest are at a station I and II, Polymesoda bengalensis (0.007%). The results of the analysis of the Ecological diversity index (H ') of Station I, namely (2,146), Station II (2,158) and Station III (2,131) are included in the medium category. The Uniformity Index (E) at a station I ranges (0.895), station II (0.900), while at station III (0.925) is included in the high category. The Domination Index at a station I (0.132), station II (0.132) and at station III (0.130) are in a low category.


2017 ◽  
Vol 8 (2) ◽  
pp. 613-624
Author(s):  
Nella Tri Agustini ◽  
Dietriech G. Bengen ◽  
Tri Prartono

Lokan shell Geloina erosa closely related to mangrove ecosystem in Enggano island. Mangrove is one supplier of organic materials required by Lokan shell. The research conducted in September 2015 - January 2016 at mangrove ecosystems in Kahyapu coastal area, aims to analyse lokan shells Geloina erosa conditions and its association with mangrove ecosystems. Sampling of mangrove vegetation was taken using line transect and lokan shell sampling using plot in mangrove ecosystem. The results show that mangrove condition of the Kahyapu coastal area was in healthy condition for the growth of lokan shell. Lokan shell are significantly assosiated with mangrove in Kahyapu coastal area of Enggano Island.


PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261620
Author(s):  
Abdullahi Bala Alhassan ◽  
Mohammed Othman Aljahdali

Mangrove ecosystems are some of the most productive and important sinks for sediment globally. Recently, there has been an increasing interest in possible causes of stress in mangroves, such as nutrient limitation, high salinity, solar radiation and temperature. We measured different factors casing stress and determined how they influenced oxidative stress and growth biomarkers in six study sites dominated by mangroves; Al Lith, South Jeddah, Dahban, Thuwal, Rabigh and Mastorah. Significant differences (P < 0.05) were recorded in water salinities and temperatures, nitrogen and phosphorus content in sediments, and antioxidant enzyme activities in different study sites. The highest salinity (40.75 ‰) and temperature (29.32°C) were recorded in the Rabigh mangrove stand, which corresponds to the lowest dissolved oxygen (5.21 mg/L). Total organic carbon, total nitrogen and total phosphorus in sediment across the study areas were in the order Rabigh>Thuwal>Dahban>Al Lith>South Jeddah>Mastorah. Total nitrogen in mangrove leaves at Rabigh was the highest and about 1.3 times higher than the total nitrogen in South Jeddah mangrove ecosystem, very different from the ratio of total nitrogen in the sediments at Rabigh and South Jeddah mangrove ecosystems. The average values of δ13C (-17.60‰) and δ15N (2.84‰) in the six mangrove ecosystems, and the highest δ13C (-13.62‰) and δ15N (4.39‰) at Rabigh in the sediments suggest that nutrient input differed among study sites. Higher nutrient levels at Rabigh mangrove ecosystem were attributed to restricted circulation, camel grazing and land runoff with agricultural waste during seasonal flooding events. However, N limitation and possibly salinity contributed to stress in Al Lith, South Jeddah, Dahban, Thuwal, Rabigh, and Mastorah mangrove ecosystems. Salinity (r = 0.9012) contribute more to stress at Rabigh.


2021 ◽  
Vol 6 (2) ◽  
pp. 85
Author(s):  
Eka Yuliawati ◽  
Budi Afriyansyah ◽  
Nova Mujiono

<strong>Mangrove gastropod community in Perpat and Bunting Rivers, Belinyu District, Bangka Regency</strong>. Perpat and Bunting in Bangka Regency have an adequate and natural mangrove ecosystems. However, studies on the structure of the gastropod community in this ecosystem is lacking. This study aimed to discover the structure of the gastropod community in the mangrove ecosystem. This study was carried out from October to November 2019 in riverine mangrove area located in Perpat and Bunting Rivers, District Belinyu, Bangka Regency. Samples were taken from 10 x 10 m plot from six observed stations. A total of 578 individuals of gastropoda were collected, comprised of seven families and 14 species. Number of species ranged from 4 to 9, while number of individuals ranged from 35 to 214. <em>Cerithidea quoyii</em> was a dominant species with 270 individuals (47%) and found in all stations. Gastropods community was in labile condition and prone to environmental change. Species composition of gastropods were similar in both rivers with nine identical species. However, epifaunal species were found separately from arboreal species


DEPIK ◽  
2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Mirza Karnanda ◽  
Zainal A. Muchlisin ◽  
Muhammad A. Sarong

The objective of the present study was to analyze the community structure of mangrove vegetation in Pidie District, Aceh Province and to plan its management strategies. The study was conducted from August to November 2014 in three subdistricts namely Batee, Kota Sigli, and Simpang Tiga. A total of three sampling stations were determined purposively at every subdistrict where every station has two substations and every substation has three sampling plots of 10 m x 10 m. In addition, a total of 297 respondents as representative of the fish farmer, fishermen, and other stakeholders were interviewed to collect data to plan the management strategies using the SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis. The results showed that there were six species of mangrove found in Pidie District namely Avicennia alba, A. officinalis, A. marina, Rhizophora mucronata, R. apiculata and Sonneratia alba. For seedlings and saplings categories can be classified into very good condition, except in Kecamatan Batee  where S. alba for seedlings was classified into moderate damage and the saplings was in highly damaged condition. The mangrove of trees category was classified into heavily damaged condition. The management strategies of mangrove ecosystem in Kabupaten Pidie can be done by maximizing the function of mangrove ecosystems by replanting the species of mangrove that match with the habitat for their life so that can produce the specific functions; improve the role of government and society in controlling and monitoring the mangrove ecosystems; and establish the local regulations about the management of mangrove ecosystems in Kabupaten Pidie.Penelitian ini bertujuan untuk menganalisis struktur komunitas vegetasi mangrove dan menetapkan strategi pengelolaannya di Kabupaten Pidie Provinsi Aceh. Penelitian ini dilaksanakan pada Agustus sampai November 2014 pada tiga kecamatan yaitu Kecamatan Batee, Kota Sigli, dan Kecamatan Simpang Tiga. Metode yang digunakan dalam penelitian ini adalah metode survei. Pada setiap lokasi ditetapkan dua sub statiun pengamatan dan setiap pengamatan dengan tiga titik transek dimana transek berupa kuadrat berukuran 10 m x 10 m. Pengambilan data mangrove dilakukan dengan transek kuadrat berukuran 10 m x 10 m untuk kategori pohon plot 5 m x 5 m unuk kategori pancang dan 2 m x 2 m untuk kategori semai. Sedangkan untuk data strategi pengelolaan mangrove dengan mewawancarai 297 responden yang merupakan perwakilan beberapa petani tambak dan nelayan di Kecamatan Batee, Kota Sigli, Kecamatan Simpang Tiga dan perwakilan stakeholder terkait. Strategi pengelolaan ekosistem mangrove di Kabupaten Pidie dianalisis menggunakan formula SWOT (Strengths, Weaknesses, Opportunities, Threats). Hasil penelitian menunjukkan bahwa ditemukan 6 spesies mangrove di Kabupaten Pidie, yaitu Avicennia alba, A. officinalis, A. marina, Rhizopora mucronata, R. apiculata dan Sonneratia alba. Mangrove di lokasi penelitian untuk tingkat semai dan pancang dapat dikategorikan dalam kondisi sangat baik, kecuali di Kecamatan Batee S. alba pada tingkat semai dikategorikan rusak ringan dan pada tingkat pancang dalam kondisi rusak berat. Mangrove tingkat pohon pada lokasi penelitian dikategorikan rusak berat. Strategi pengelolaan ekosistem mangrove di Kabupaten Pidie dapat dilakukan dengan memaksimalkan fungsi ekosistem mangrove berupa penanaman kembali jenis-jenis mangrove tertentu yang sesuai dengan habitat hidupnya sehingga menghasilkan fungsi tertentu; meningkatkan peran pemerintah dan masyarakat; melakukan pengawasan dan monitoring secara berkala di ekosistem mangrove; serta merumuskan peraturan daerah tentang pengelolaan ekosistem mangrove di Kabupaten Pidie.


2016 ◽  
Vol 11 (1) ◽  
pp. 65-71 ◽  
Author(s):  
K B. Bindu ◽  
G Jayapal

Mangrove ecosystems are prone to die due to both anthropogenic and natural effects. The present study is a case study of how the formation of sand bars affects the natural mangrove ecosystem and becoming a threat to its rich biodiversity of flora and fauna. The Kadalundi – Vallikkunnu Community Reserve located in Kozhikode and Malappuram Districts in Kerala State is the first community reserve of Kerala, declared in 2007 which spread across 1.5 sq. km. andthis area includes Kadalundi bird sanctuary, mangroves and estuarine. These area mainly affected by numerous biotic interferences like over fishing, collection of oyster and mussels, mining of sand and lime and also retting of coconut. The formation of sand bars at the mouth of the river has resulted in the massive die back of the mangrove vegetation, especially that of Avicennia Marina which is one of the five species of mangroves found in the Kadalundi – Vallikunnu community reserve. The illegal utilization of land for coconut plantation, urbanization and dumping of urban waste near the mouth of the river had made the problem highly complicated. The present study highlights the need for urgent measures to be adopted from the authorities to ensure community participation for restoration of community reserve.


2017 ◽  
Vol 4 (2) ◽  
pp. 171
Author(s):  
Luh Pt Priyandayani ◽  
I Gede Hendrawan ◽  
Widiastuti Karim

Mangrove at Tahura Ngurah Rai Bali contributes the organic material into environment. Polychaeta is one of the main benthic macrofauna that has important role in accumulating organic material to mangrove ecosystem. The purpose of this research is to explain the abundance and diversity of Polychaeta such as Rhizophora mucronata, mix mangrove and Sonneratia alba at Tahura Ngurah Rai. The sampling of Polychaeta using corers with diameter 17 cm and height 18 cm those sink in the substrate. The abundance was analyzed by the Krebs and diversity was analyzed by Shannon Wiener index. There were five genus of Polychaeta, such as Heteromastus, Marphysa, Laeonereis, Nereis, and Paranaitis. The highest abundance of Polychaeta was found in mixed stations (432 ± 57,37 ind/m2), and the lowest abundance was in R. mucronata (414 ± 79,93 ind/m2). The abundance of Polychaeta in the three stations did not differ significantly because it was influenced by the dominant substrate of sandy clay. The highest Polychaeta diversity was found in S. alba (0,704), followed by the mixed station (0,642), and the lowest was in R. mucronata. The value of Polychaeta diversity on the three stations differed significantly because of the comparison between the type and total number of individuals in each station that varied. The Polychaeta diversity index in the three stations is low, while the Polychaeta abundance value in each station is quite abundant. The result showed that the stability of the Polychaeta community in the mangrove ecosystem is unstable.


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Yanuar Rustrianto Buwono

The Bengkak coastal area is one of the coastal areas which is a marine fishery activity with a natural mangrove ecosystem of ± 9 ha bordered by reed mangrove and opposite to TN West Bali mangrove. Environmental pressure with the presence of human activities such as the extraction of mangrove wood causes the growth and development of mangroves not optimal and affects the potential of mangrove ecosystems so research needs to be done to determine the diversity of mangrove ecosystems on the coast of Bengkak Village, Banyuwangi District. Observations in the whole mangrove ecosystem have low species diversity criteria, namely H 'ranging from 0.20 - 0.67 and dominated by A. marina species from the families Avicenniaceae and R. mucronata from the family Rhizophoraceae. While the density of species in all observation stations found that mangrove stands ranged from 967 - 82,000 Ind / Ha. The density of A. marina mangrove vegetation was identified as the highest in the seedling phase of 7,500 Ind / Ha, the sapling phase was 74,000 Ind / Ha and the tree phase was 567 Ind / Ha. The lowest type of R. mucronata was identified in the seedling phase of 5,000 Ind / Ha, sapling phase of 8,000 Ind / Ha and tree phase of 400 Ind / Ha. Environmental factors in the form of nutrients such as leaf litter and the quality of the aquatic environment also influence the growth and development of mangrove ecosystems. environmental conditions in the mangrove zone have the texture of sandy soil and sandy mud, temperatures range from 23 - 33 °C, pH ranges from 7 and salinity ranges from 23 - 36 ‰. These environmental conditions support the growth and development of the species of mangrove Avicennia sp. and Rhizopora sp. so that it is dominant and spreads on the coast of Bengkak Village.


2021 ◽  
Vol 17 (1) ◽  
pp. 138-146
Author(s):  
Wazim R Sharif ◽  
Phillip NB Da Silva

There is limited data on the fungal diversity in mangrove ecosystems in Guyana. This study investigated fungal diversity during the dry season in three selected coastal mangrove ecosystems along the Corentyne Coast of East Berbice, Guyana. Sampling was conducted within randomly established 50 m x 50 m plots containing 20 mini transects of length 12.5 m x 10 m in the overwash mangrove ecosystem at each of six study sites within the three study locations. Samples retrieved from the study plots included leaf, bark, soil and fruiting bodies. These were placed into separate bags and labelled appropriately. Environmental parameters were recorded at each study plot. Fruiting bodies were used to identify macrofungal species, and the leaf, bark and soil were used to prepare cultures from which microfungal samples were identified. The species that were identified were used to compile a checklist of fungal species, and diversity indices were calculated. A total of thirty (30) species were recorded, nine (9) of which were microfungi identified from the cultured samples and twenty-one (21) species were identified from macrofungal fruiting bodies retrieved at the study sites. The results further revealed that an increase in pH and salinity and a decrease in temperature resulted in an increase in species richness. Tidal activity also appeared to reduce species richness. Aspergillus, Rhizopus and Trichoderma were the dominant species at the three study sites with high relative species abundance. There also appeared to be some instances of substrate specificity.


2019 ◽  
Vol 4 (2) ◽  
pp. 208-221
Author(s):  
Ucu Yanu Arbi ◽  
Hendrik Alexander William Cappenberg ◽  
Yaya Ihya Ulumuddin ◽  
Mujizat Kawaroe ◽  
Ristiyanti Marsetyowati Marwoto

Terletak di sekitar Selat Madura, Kabupaten dan Kota Probolinggo merupakan habitat dari vegetasi mangrove, tetapi keberadaan hutan mangrove di lokasi ini sebagian besar telah dikonversi menjadi areal pertambakan. Vegetasi mangrove yang tersisa tumbuh hanya di pematang tambak dan di sekitar bagian pantai. Potamididae merupakan satu-satunya famili dari gastropoda dimana semua anggotanya hanya dapat ditemukan berasosiasi dengan vegetasi mangrove. Tujuan dari penelitian ini adalah untuk mengetahui komposisi spesies keong Potamididae di areal pertambakan Probolinggo. Penelitian dilakukan pada bulan Februari dan April 2013 menggunakan metode Purposive Random Sampling di tujuh stasiun penelitian. Identifikasi spesies keong Potamididae dilakukan terutama berdasarkan karakter morfologi cangkang. Hasil penelitian menunjukkan bahwa delapan spesies keong Famili Potamididae ditemukan pada lokasi ini. Keberadaan vegetasi mangrove, jarak terdekat dengan garis pantai, suhu, salinitas dan pola arus serta pasang surut air laut dicatat sebagai faktor pendukung pertumbuhan dan perkembangan keong di lokasi penelitian. Hasil dari penelitian ini diharapkan dapat membuka peluang penelitian selanjutnya untuk mengetahui peran dan pengaruh keong Potamididae bagi kesehatan ekosistem habitat mangrove di area pertambakan.COMPOSITION OF POTAMIDID SNAILS IN THE MANGROVE ECOSYSTEM OF PROBOLINGGO POND AREA, EAST JAVA. Located around Madura Strait, Probolinggo City and Regency is a home for mangrove vegetation, but the mangrove forest in this are mostly has been converted into aquaculture ponds. The mangrove relic grows in the pond embankment and the narrow strip along the seaside. Potamididae is the only family of gastropods in which all members can only found associated with mangrove vegetation. The aim of this research was to determine species composition of potamidid snails in the pond environment of Probolinggo. The research was conducted in February and April 2013 using Purposive Random Sampling method in seven sampling stations. The species identification of the snails was based primarily on morphological shell characters. The results showed that eight species of Family Potamididae were found at the sites. The presence of mangrove trees, the distance to nearest coastline, temperature, salinity, and the pattern of ocean current and tide seemed to support the snails to grow and thrive in the study sites. The results of this study are expected to open up opportunities for further research to determine the role and influence of potamidid snails on the ecosystem health of mangrove habitat in the pond environment.


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