Keanekaragaman Spons pada Ekosistem Padang Lamun di Perairan Malang Rapat, Kabupaten Bintan

Fidayat, Fidayat; Lestari, Febrianti; Nugraha, Adiya Hikmat

doi:10.31629/akuatiklestari.v4i2.2469

Cited by 3 publications

(2 citation statements)

References 10 publications

(11 reference statements)

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“…Lamun (Seagrass) merupakan tumbuhan tingkat tinggi yang memiliki akar, batang, dan daun. Lamun termasuk kedalam kelompok Angiospermae yang hidup terbenam di lingkungan perairan (Fidayat et al, 2021). Ekosistem lamun memiliki peranan penting untuk organisme di perairan yaitu tempat berkembang biak (spawning ground), tempat mencari makanan (feeding ground), dan bioindikator pencemaran lingkungan (Rustam, 2019).…”

Section: Pendahuluanunclassified

Hubungan Kondisi Padang Lamun dengan Persentase Tutupan Mikroalga Epifit di Ekosistem Padang Lamun Pantai Prawean Bandengan dan Semat, Jepara

Rahman,

Riniatsih,

Setyati

2024

J. Mar. Res.

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Ekosistem lamun merupakan salah satu komponen paling penting di wilayah pesisir laut. Fungsi lamun berkaitan dengan bioekologi dari interaksi makhluk hidup yang tinggal di wilayah ekosistem tersebut dengan lingkungannya. Komponen makhluk hidup dalam ekosistem lamun salah satunya mikroalga epifit. Epifit menempel pada substrat atau lamun itu sendiri dan menjadi bioindikator kualitas perairan. Tidak selalu memiliki dampak baik, epifit juga terkadang memiliki dampak buruk bagi ekosistem padang lamun dengan jumlah tertentu yang dapat menurunkan produktivitas lamun. Penelitian ini dilakukan untuk mengetahui persentase mikroalga epifit ekosistem padang lamun yang berada di Pantai Prawean Bandengan dan Pantai Semat, Jepara. Data yang dikumpulkan berupa data penutupan dan kerapatan lamun dengan metode line transect quadrat, data persentase tutupan epifit yang mengacu pada metode seagrass watch, data parameter kualitas air (suhu, salinitas, pH, kecepatan arus, kecerahan), dan data konsentrasi nutrien (nitrat dan fosfat). Hasil penelitian menunjukkan bahwa komposisi jenis lamun lebih banyak di Pantai Prawean Bandengan (Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Oceana serrulata, Halodule uninervis, Halophila ovalis). Penutupan padang lamun paling tinggi juga terdapat di Pantai Prawean Bandengan dengan nilai rata-rata 39,87% sedangkan pada Pantai Semat memiliki persentase sebanyak 26,94%. Data persentase tutupan epifit tertinggi pada Pantai Semat dengan nilai 27,17% disusul oleh Pantai Prawean Bandengan dengan nilai 25,25%. Hal ini menunjukkan bahwa kategori padang lamun tergolong sedang. Substrat pada Pantai Prawean Bandengan berjenis fine sand sedangkan pada Pantai Semat berjenis gravel. Data menyimpulkan bahwa ekosistem padang lamun baik di Pantai Prawean Bandengan maupun Pantai Semat memiliki kondisi sedang. Seagrass ecosystems are one of the most important components in coastal marine areas. The function of seagrasses is related to the bioecology of the interaction of living things that live in the ecosystem area with their environment. One of the components of living things in seagrass ecosystems is epiphytic microalgae. Epiphytes attach to the substrate or seagrass itself and become bioindicators of water quality. Not always having a good impact, epiphytes also sometimes have a bad impact on seagrass ecosystems with certain amounts that can reduce seagrass productivity. This study was conducted to determine the percentage of epiphytic microalgae in seagrass ecosystems in Prawean Bandengan Beach and Semat Beach, Jepara, East Java, Indonesia. The data were collected by counting the seagrass closure, seagrass density measure using line transect quadrat method, epiphyte cover percentage data referring to seagrass watch method, water quality parameter data (temperature, salinity, pH, current speed, brightness), and nutrient concentration data (nitrate and phosphate). The results showed that seagrass species composition was more abundant at Prawean Bandengan Beach (Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Oceana serrulata, Halodule uninervis, Halophila ovalis). The highest seagrass cover was also found in Prawean Bandengan Beach with an average value of 39.87% while Semat Beach had a percentage of 26.94%. Data on the percentage of epiphyte cover was highest at Semat Beach with a value of 27.17% followed by Prawean Bandengan Beach with a value of 25.25%. This shows that the seagrass category is classified as moderate. The substrate at Prawean Bandengan Beach is fine sand type while Semat Beach is gravel type. The data concludes that the seagrass ecosystem in both Prawean Bandengan Beach and Semat Beach has a moderate condition.

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Section: Pendahuluanunclassified

Hubungan Kondisi Padang Lamun dengan Persentase Tutupan Mikroalga Epifit di Ekosistem Padang Lamun Pantai Prawean Bandengan dan Semat, Jepara

Rahman,

Riniatsih,

Setyati

2024

J. Mar. Res.

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“…Indonesia diperkirakan terdapat sekitar 1.500 jenis gastropoda (Nontji dalam Wati, 2013dalam Febriyanti, 2016. Gastropoda adalah hewan berukuran relatif besar yang menarik dengan nama perdagangan snail dan secara lokal lebih dikenal siput-siputan.…”

Section: Pendahuluanunclassified

Diversity of Gastropods and Bivalvia in Jukung Bay Waters, Pemongkong Village, Jerowaru District, East Lombok Regency

Ardiansyah,

Paryono,

Waspodo

2023

JBT

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Several activities affect the distribution of gastropods and bivalves, one of which is the activity of the community around the coast which is thought to affect water quality. The entry of organic and inorganic contaminants into coastal waters is thought to cause a decrease in water quality followed by changes in physics, chemistry and biology. The purpose of this study was to determine the diversity of gastropods and bivalves in the waters of Jukung Bay, Ujung Betok Hamlet, Pemongkong Village, Jerowaru District, East Lombok Regency. This research was conducted in Ujung Betok Hamlet (Tukung Bay Waters), Pemongkong Village, Jerowaru District, East Lombok Regency. the study was conducted from October 2022 to July 2023. The results showed that the highest species abundance was found in the Gastropoda class Nassarius sp with an abundance of 31 individuals/m2. The highest gastropod and bivalves diversity index value was obtained at point 3, namely 0.42 individuals/m2. The highest gastropod and bivalves uniformity index value was obtained at point 2 with a uniformity index value of 0.28. The dominance index value obtained was 0.1-0.56 individuals/m2 included in the moderate dominance category. Based on the results and discussion it is known that the abundance of gastropods and bivalves in the coastal waters of Jukung Bay which were analyzed totaled 108 individuals. The diversity index (H') obtained in this study ranged from 0.41-1.39 individuals/m2. The uniformity found ranged from 0.14 to 0.28 individuals/m2. The dominance index obtained ranged from 0.1 to 0.56 individuals/m2.

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Seagrass community structure in the waters of Terkulai Island, Tanjungpinang City

Yani,

Susiana,

Nugraha

et al. 2024

Akuatikisle: J. Aqua. Coast. & Isle

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Seagrass ecosystem is a coastal ecosystem where seagrass grows as the dominant vegetation and can live permanently below sea level. Of course, the existence of human activities that do not care about the coastal environment has an impact on changes in seagrass communities in supporting coastal ecosystems. This study aims to determine the structure of the seagrass community in Terkulai Island Waters, Tanjungpinang City, this research was conducted in May 2023. Determination of the sampling point was carried out using the purposive sampling method with 4 stations that have seagrass distribution. Observation of seagrass was carried out using the modified line transect method where the line transect was placed at the starting point where seagrass was found until the end point was not found, the transect placement was chosen based on the longest area of the seagrass stretch and as a benchmark the transect placement was squared 50 x 50 cm then each line transect length was divided by 10% to get the squared distance between transects. The results of the study found 3 types of seagrass in the waters of Terkulai Island namely Enhalus acoroides, Thalassia hemprichii, Halophila ovalis. Seagrass Thalassia hemprichiii has the highest density when compared to other seagrass species with density values ranging from 764 to 1928 shoots/m2. If categorized, the value of seagrass cover at each station is included in the medium category. For seagrass biomass the Enhalus acoroides type is larger when compared to other seagrass species. The results of PCA (Principal Component Analysis) showed that seagrass cover was closely related to the environmental parameter characteristics of depth, brightness, salinity.

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Keanekaragaman Spons pada Ekosistem Padang Lamun di Perairan Malang Rapat, Kabupaten Bintan

Cited by 3 publications

References 10 publications

Hubungan Kondisi Padang Lamun dengan Persentase Tutupan Mikroalga Epifit di Ekosistem Padang Lamun Pantai Prawean Bandengan dan Semat, Jepara

Hubungan Kondisi Padang Lamun dengan Persentase Tutupan Mikroalga Epifit di Ekosistem Padang Lamun Pantai Prawean Bandengan dan Semat, Jepara

Diversity of Gastropods and Bivalvia in Jukung Bay Waters, Pemongkong Village, Jerowaru District, East Lombok Regency

Seagrass community structure in the waters of Terkulai Island, Tanjungpinang City

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