Primary productivity analysis of phytoplankton and community structure of macrobenthos based on mangrove density in the conservation area of Tarakan City, East Kalimantan

Taqwa, Amrullah; Supriharyono, Supriharyono; Ruswahyuni, Ruswahyuni

doi:10.13057/bonorowo/w030103

Cited by 4 publications

(6 citation statements)

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“…The value of the similarity index indicates the similarity of the types of macrobenthos fauna which composes a very high community (Taqwa et al, 2017) at a location that different. The similarity index at all research stations is within the range 86-98%.…”

Section: Resultsmentioning

confidence: 99%

Condition of Seagrass Beds Ecosystem on Poncan Gadang Island Based on Macrozoobenthos Diversity

Elpiyani

Diaz

Ranza

et al. 2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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The seagrass ecosystem of Poncan Gadang island is one of the ecosystems that often come under pressure due to ecotourism activities. Pressure on these ecosystems can have an impact on the diversity of the types of animals that live in them. This research is aimed at knowing the condition of seagrass ecosystems based on the diversity of macrozoobenthos that live in them. The observation point is divided into 5 stations. At each point, a square transect of 1x1 meters is made as many as 10 pieces. Collection of macrozoobenthos samples is carried out by the hand sorting method. The samples collected were then identified at the Ecology Laboratory of the Faculty of Teacher Training and Education, University of Labuhanbatu. Data analysis uses the shannon wienner index (H'), Dominance Index (C') and Similarity Index (IS) formulas. Data analysis was done by computer program Plymouth Routines In Multivariate Ecological Research (Primer) 7th version. The results showed that there were 30 species of macrozobenthos living in the seagrass ecosystem of Poncan Gadang island, with a diversity index (H') of 3.031-3.191, a dominance index (C') of 0.0038 - 0.0053, then a similarity index (IS) of 86.792 – 98.305%. This result indicates the condition of the seagrass beds ecosystem of Poncan Gadang Island is in good condition, with a moderate level of uniformity, low dominance and high similarity

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Section: Resultsmentioning

confidence: 99%

Condition of Seagrass Beds Ecosystem on Poncan Gadang Island Based on Macrozoobenthos Diversity

Elpiyani

Diaz

Ranza

et al. 2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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“…Separate the sieve based on the net size, then weigh the sieve results from each net size. Substrate samples that passed the 2 mm sieve were further analyzed using the hydrometric method 9 .…”

Section: Methodsmentioning

confidence: 99%

“…Once cool, weigh it using a digital scale. The final weight minus the weight of the empty petri dishes is the sample weight of 0.0005 mm (clay) 9 . Furthermore, the sample in the petri dish was dried in an oven for 2 hours, then chilled in a desiccator.…”

Section: Methodsmentioning

confidence: 99%

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Contribution of the Mangrove ecosystem to the Gastropod community at pantai Bahagia vilage, Muara Gembong, West Java

Dwijaya¹,

Krisnanti²,

Ramdhani³

2021

Genbinesia J. Biol

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The Mangrove ecosystem of Muara Gembong has been under continuing stress by land occupation, land conversion, and abrasion. This research was aimed to reveal the mangrove and gastropods community structure circumstance. A contribution of the environmental factor was also assessed to evaluate the interaction among them and to track the changes of the ecosystem. This research was conducted by purposive sampling in 3 sampling sites, these were a full reforestation site (A), a central site, that was exist by natural process (B), also a moderate reforestation site (C), with 3 sampling replication each site. About 4 mangrove species within shoreline has been progressively important as a protective flood barrier and abrasion at Muara Gembong. The highest gastropod diversity was found in the B1 site, while the highest dominance was found in A2. The C2 site is the only site that showed us a uniform dispersion of gastropods when the other sites showed a clumped dispersion. It can be implied that the ecosystem has been gradually degraded. Eigen and loading value from Canonical Correspondence Analysis (CCA) revealed that a gastropods community was holistically affected by pH, basal area, canopy, substrate, and TDS. The community of gastropods was influenced 62.14% by pH, and 34.29% by basal area. while the highest dominance was found in A2. The C2 site is the only site that showed us a uniform dispersion of gastropods when the other sites showed a clumped dispersion. It can be implied that the ecosystem has been gradually degraded.

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“…Keanekaragaman spesies mangrove ditemukan lebih tinggi di kawasan konservasi Kota Tarakan, Kalimantan Timur dibandingkan dengan lokasi penelitian saat ini dengan 12 spesies mangrove dalam 5 famili (Taqwa et al, 2013). Tetapi, jumlah spesies mangrove di daerah penelitian ini lebih banyak dibandingkan dengan di Pulau Maitara, Maluku Utara yang terdiri dari empat spesies mangrove yaitu Rhizophora apiculata, Rhizophora mucronata, Rhizophora Stylosa dan Soneratia alba.…”

Section: Analisis Dataunclassified

Diversity of Molluscs Associated with Mangroves on The Gerupuk Beach in Central Lombok in 2023

Dasilva,

Syukur,

Mahrus

2023

JBT

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Mangrove ecosystems have an important role in coastal areas. One of the roles of mangroves is to protect the shoreline and prevent seawater intrusion. Molluscs are one of the mangrove association biota whose lives are influenced by the presence of mangrove forests. Therefore, the purpose of this study was to determine the diversity of molluscs and the relationship between mangrove density and limiting molluscs to the coastal mangrove area of Gerupuk Beach, Central Lombok. Sampling of molluscs used the quadrate sampling method with purposive sampling by taking into account the mangrove species found in the observation plots. The data obtained were then analyzed with the charisma index, associations, and Pearson's correlation coefficient. The results of this study obtained 13 species of Molluscs consisting of 12 species of the Gastropod family and 1 species of the Bivalvia family. The Brachyura diversity index at the research station was moderate with a value between 1.48–1.88. Furthermore, there were 8 species of Molluscs associated with 4 species of mangrove from 13 species of Molluscs found. The linear regression equation y = 0.1429x + 0.0007 with a Pearson correlation coefficient (r) of 0.57 indicates a strong relationship between the independent variable (x) mangrove density and the dependent variable (y) exposure to molluscs. The conclusion of this study is that the diversity of molluscs in the mangrove area of Gerupuk Beach is included in the moderate category and there is a significant relationship between mangrove density and mollusk attractions.

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Primary productivity analysis of phytoplankton and community structure of macrobenthos based on mangrove density in the conservation area of Tarakan City, East Kalimantan

Cited by 4 publications

References 0 publications

Condition of Seagrass Beds Ecosystem on Poncan Gadang Island Based on Macrozoobenthos Diversity

Condition of Seagrass Beds Ecosystem on Poncan Gadang Island Based on Macrozoobenthos Diversity

Contribution of the Mangrove ecosystem to the Gastropod community at pantai Bahagia vilage, Muara Gembong, West Java

Diversity of Molluscs Associated with Mangroves on The Gerupuk Beach in Central Lombok in 2023

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