Macrozoobenthos diversity as bioindicator of water quality in the Bilah river, Rantauprapat

Harahap, Arman; Barus, Ternala Alexander; Mulya, Miswar Budi; Ilyas, Syafruddin

doi:10.1088/1742-6596/1116/5/052026

Cited by 41 publications

(88 citation statements)

References 4 publications

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“…The higher the DO concentration in the waters, the higher its quality and vice versa, which might impact the existence of macrozoobenthos (Sahidin et al 2018). Moreover, Harahap et al (2018) presented that DO is positively correlated with macrozoobenthos and may indeed be employed as a bioindicator as well as a determinant of water quality.…”

Section: Relationship Between Macrozoobenthos Diversity and Environme...mentioning

confidence: 97%

“…The Pearson correlation with SPSS 21.0 software has been employed in examining the relationship between the value of the Macrozoobenthos Diversity Index (H') and environment conditions (Table 10). The presence of macrozoobenthos in mangrove waters is strongly influenced by various environmental factors: temperature, pH, salinity, and DO (Harahap et al 2018). The availability of the DO parameter with a value of 0.68 is strongly correlated with macrozoobenthos diversity in mangrove waters, so it can be assumed that DO affects the presence of macrozoobenthos in mangrove waters.…”

Section: Relationship Between Macrozoobenthos Diversity and Environme...mentioning

confidence: 99%

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Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

et al. 2021

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Hasibuan IM, Amelia R, Bimantara Y, Susetya IE, Susilowati A, Basyuni M. 2021. Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia. Biodiversitas 22: 5600-5608. The mangrove forest offers a habitat for a variety of marine species, including macrozoobenthos. Macrozoobenthos live at the bottom of the waters on hard to muddy substrates, where they break down mangrove debris, ensuring microorganisms' ease in decomposing organic matter into inorganic materials that provide nutrients to producers in the water. The study aimed to determine the vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia. This research was executed with vegetation analysis, employing a sampling method in the form of plots, as many as three transects and 66 plots. The sampling of macrozoobenthos was conducted on the substrate surface, roots, and mangrove trunk for three stations and nine plots with a size of 1 m x 1 m. We found 10 true mangrove species where Avicennia marina was the most abundant, found at each seedling, sapling, and tree-stage with an important value index (IVI) of 64.62%, 75.73%, and 92.12%, respectively. Overall, the number of individuals in the species found was 1666.67/Ha at the seedling stage, 1090.91/Ha at the sapling stage, and 842.42/Ha at the tree stage. Seven macrozoobenthos species were found and classified into four classes of Gastropoda, Polychaeta, Mollusca, and Arthropoda, with population abundance values being 9.33 ind/m2 at a station I, 7.44 ind/m2 at station II, and 8.78 ind/m2 at station III. The diversity index (H') of the observed location was determined to be 1.63-2.06, which was classified into the medium category, while H' macrozoobenthos ranging from 1.54-1.81 were classified into the low to moderate category. The observed parameters' physical and chemical factors presented that the condition of the waters in the research area is still considered suitable for supporting macrozoobenthos life, with dissolved oxygen being strongly correlated to macrozoobenthos diversity.

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Section: Relationship Between Macrozoobenthos Diversity and Environme...mentioning

confidence: 97%

Section: Relationship Between Macrozoobenthos Diversity and Environme...mentioning

confidence: 99%

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

et al. 2021

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“…The fish samples obtained were put into a plastic bag containing 70% alcohol and labeled containing information about the data location and sample specifications. Fish-sized big, besides being soaked in alcohol, also injected formalin 4% (Harahap et al 2018). Fish specimens before being preserved first photographed and recorded local names, especially for fish species that already have local names.…”

Section: Study Area and Sampling Sitesmentioning

confidence: 99%

Population dynamics of anchovy pekto (Stolephorus waitei) in the waters of Malacca Strait, North Sumatra, Indonesia

2021

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Abstract. Mulya MB, Jhon AH, Harahap ZA. 2021. Population dynamics of anchovy pekto (Stolephorus waitei) in the waters of Malacca Strait, North Sumatra, Indonesia. Biodiversitas 22: 2693-2698. Anchovy pekto or Stolephorus waitei (Engraluidae: Clupeiformes) is one of the fish in the eastern coastal part of North Sumatra, occupying the waters of Malacca Strait. This research presents the population dynamics of S. waitei following its age, growth, mortality, and recruitment pattern based on the length-frequency data. Fork length (FL) and total weight (TW) data of S. waitei were collected at three sites from April to September 2018. A total of 1994 specimens with FL from 4.0 to 6.7 cm and TW from 0.2 to 2.3 g with the length-weight relationship of TW = 0.073FL3.0046 (R2=0.765) indicated a near isometric and positive allometric growth in the water region. The relative condition factor (Kn) ranged from 1.01 to 1.02, indicating an estimate of good condition of the fishes. The growth parameters based on von Bertalanffy was 6.56 cm (L?) with the growth coefficient (K) of 0.34 yr-1 and t0 (anchovy age at zero length ) of 0.6506. The total mortality (Z), natural mortality (F), and catch mortality (M) of S. waitei were 0.64, 1.39, and 0.75 yr-1 respectively, which suggest that the fishing activities of S. waitei are still in normal intensity. The recruitment pattern of S. waitei was stable between April and August with its peak in June by 14.21%. The fishing activities may then be limited during the spawning months (May to June) of S. waitei to maintain their population in the Strait of Malacca.

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“…According to Haryadi et al (2019), habitat degradation and alteration affect the structure of the ecosystem including the native vegetation within, so it is necessary to monitor the changes that occur. In the context of Barumun River, the conversion of land into plantation areas such as oil palm (Elaeis guineensis) and seasonal crop farming such as cucumber (Cucumis sativus), cowpea (Vigna unguiculata), and smooth pigweed (Amaranthus hybridus), are potential threats to the sustainability of the watershed and its surrounding ecosystem in the Labuhanbatu District as documented from the biodiversity monitoring of its benthic organisms (Harahap et al 2018;Harahap et al 2021). Ideally, tree vegetation should dominate the riparian to support the sustainability of the river ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Plant diversity, structure and composition of vegetation around Barumun Watershed, North Sumatra, Indonesia

et al. 2021

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Abstract. Rambey R, Susilowati A, Rangkuti AB, Onrizal O, Desrita, Ardhi R, Hartanto A. 2021. Plant diversity, structure and composition of vegetation around Barumun Watershed, North Sumatra, Indonesia. Biodiversitas 22: 3250-3256. Watershed ecosystem plays an important role in water and soil conservation which is supported by vegetation around watershed. As such, vegetation analysis is beneficial to assess the current state of watershed vegetation and monitor future changes. Barumun Watershed, located in South Labuhanbatu District, North Sumatra Province, Indonesia, is under threat due to habitat degradation and land conversion for plantation and agriculture. This research aimed to investigate the diversity, structure and composition of vegetation in the Barumun River including its smaller streams (rivulets). Data were collected using a combination of line transect and quadratic plots arranged systematically. The total observation plots were 48 plots, consisting of 24 plots in Barumun River, 12 plots in Tasik Rivulet and 12 plots in Titi Kembar Rivulet. The results documented a total of 51 plants in the studied sites in Barumun Watershed in which 37 species were found in Barumun River, 20 species in Tasik Rivulet and 17 species in the Titi Kembar Rivulet. Plant species consisted of several habitus including herbs, palms, shrubs, climbers and trees. The trees consisted of 22 species (43.13%), herbs 22 species (43.13%), climbers 3 species (5.88%), shrubs two species (3.92%), and palm two species (3.92%). The highest Importance Value Index (IVI) for tree community was recorded in the Barumun River from Hevea brasiliensis (108.28), followed by Cryptocarya sp. (123.24) in the Titi Kembar Rivulet. In addition, the highest IVI for pole, sapling, seedling, and shrub was recorded from Muntingia calabura (Barumun River), Nauclea orientalis (Tasik Rivulet), Psychotria viridiflora (Tasik Rivulet), and Calamus axillaris (Titi Kembar Rivulet), respectively. The plant diversity in Barumun Watershed was categorized from low to moderate level of richness.

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Macrozoobenthos diversity as bioindicator of water quality in the Bilah river, Rantauprapat

Cited by 41 publications

References 4 publications

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

Population dynamics of anchovy pekto (Stolephorus waitei) in the waters of Malacca Strait, North Sumatra, Indonesia

Plant diversity, structure and composition of vegetation around Barumun Watershed, North Sumatra, Indonesia

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