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HUBUNGAN KERAPATAN MANGROVE DAN PRODUKSI SERASAH MANGROVE TERHADAP KELIMPAHAN GASTROPODA DI PERAIRAN DOMPAK TANJUNGPINANG Supriadi, Agis Dita; Karlina, Ita; Idris, Fadhliyah
Dinamika Maritim Vol 7 No 1 (2018): Dinamika Maritim, Vol. 7 No. 1, August 2018
Publisher : Coastal and Marine Resources Research Center, Raja Ali Haji Maritime University, Tanjungpinang, Indonesia

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The purpose of this study is to determine the relationship between mangrove density and mangrove litter production to the abundance of gastropods in Dompak Tanjungpinang waters. This research is done by random sampling method as much as 3 station or 15 plot of quadrant transect with plot size 10x10 m. Collected data is tabulated and grouped by variable type, mangrove density data and mangrove litter production as variable (X) and gastropod abundance as variable (Y). From the results of simple linear regression analysis there is a relationship between mangrove density to gastropod abundance with coefficient value (R2) 0,1756 or 17,56% and relation of mangrove litter production to gastropod abundance with coefficient value (R2) 0,1498 or 14,98% . Sampling of mangroves litter by mounting litter traps measuring 10x10 m. Production of mangrove litter at station I with value 344,253 gbk/100m2/15hari, value at station II is 234,353 gbk/100m2/15hari, and value at station III is 386,574 gbk/100m2/15hari. Factors that affect the high low litter production are mangrove and wind density.

STUDI JENIS DAN KERAPATAN LAMUN (SEA GRASS) UNTUK PENGELOLAAN BERKELANJUTAN DI KAWASAN PERAIRAN PULAU ABANG KEPULAUAN RIAU Karlina, Ita; Idris, Fadhliyah
Dinamika Maritim Vol 6 No 2 (2018): Dinamika Maritim, Vol. 6 No. 2, February 2018
Publisher : Coastal and Marine Resources Research Center, Raja Ali Haji Maritime University, Tanjungpinang, Indonesia

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Penelitian tentang studi jenis dan kerapatan Lamun Seagrass di Pulau Abang Batam Kepulauan Riau. Metode yang di gunakan dalam penelitian ini adalah metode transek 1 x 1 m, dengan tiga stasiun yang masing-masing dilakukan 3 transek kuadran dengan masing-masing transek terdiri dari 10 plot. Stasiun 1 Dekat mangrove, menghadap laut, saat pasang, cuaca cerah kedalaman hingga 2 m dan stasiun 2 Lamun berasosiasi dengan jenis-jenis makroalga, saat surut, cuaca cerah, menghadap laut kedalaman mencapai 1.5 m). melihat kerapatan dan penutupan lamun dengan melihat frekuensi kemunculan jenis lamun dan nilai tengah kelasnya untuk melihat kerapatan dan penutupannya. ditemukan 9 jenis lamun yaitu Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, Cymodocea rotundata, Halodule uninervis, Halodule pinivolia, Halodule ovalis, Syringodium isoetifolium, Thalassodendron cilliatum. Substrat didominasi oleh substras pasir dan pasir berbatu. Distribusinya ada disetiap stasiun, namun paling banyak ada di stasiun 1 dengan jenis paling mendominasi adalah halodule sp, sedangkan di stasiun 2 banyak di dominasi oleh halodule sp dan enhalus acoroides. Kerapatan lamun paling rendah ada distasiun 2. Pengelolaan yang sesui di kawasan lamun yaitu pengelolaan berbasis ekologi.

HUBUNGAN KERAPATAN MANGROVE DAN PRODUKSI SERASAH MANGROVE TERHADAP KELIMPAHAN GASTROPODA DI PERAIRAN DOMPAK TANJUNGPINANG Supriadi, Agis Dita; Karlina, Ita; Idris, Fadhliyah
Dinamika Maritim Vol 7 No 1 (2018): Dinamika Maritim, Vol. 7 No. 1, August 2018
Publisher : Pusat Penelitian Sumberdaya Pesisir dan Laut, Universitas Maritim Raja Ali Haji, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

The purpose of this study is to determine the relationship between mangrove density and mangrove litter production to the abundance of gastropods in Dompak Tanjungpinang waters. This research is done by random sampling method as much as 3 station or 15 plot of quadrant transect with plot size 10x10 m. Collected data is tabulated and grouped by variable type, mangrove density data and mangrove litter production as variable (X) and gastropod abundance as variable (Y). From the results of simple linear regression analysis there is a relationship between mangrove density to gastropod abundance with coefficient value (R2) 0,1756 or 17,56% and relation of mangrove litter production to gastropod abundance with coefficient value (R2) 0,1498 or 14,98% . Sampling of mangroves litter by mounting litter traps measuring 10x10 m. Production of mangrove litter at station I with value 344,253 gbk/100m2/15hari, value at station II is 234,353 gbk/100m2/15hari, and value at station III is 386,574 gbk/100m2/15hari. Factors that affect the high low litter production are mangrove and wind density.

STUDI JENIS DAN KERAPATAN LAMUN (SEA GRASS) UNTUK PENGELOLAAN BERKELANJUTAN DI KAWASAN PERAIRAN PULAU ABANG KEPULAUAN RIAU Karlina, Ita; Idris, Fadhliyah
Dinamika Maritim Vol 6 No 2 (2018): Dinamika Maritim, Vol. 6 No. 2, February 2018
Publisher : Pusat Penelitian Sumberdaya Pesisir dan Laut, Universitas Maritim Raja Ali Haji, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian tentang studi jenis dan kerapatan Lamun Seagrass di Pulau Abang Batam Kepulauan Riau. Metode yang di gunakan dalam penelitian ini adalah metode transek 1 x 1 m, dengan tiga stasiun yang masing-masing dilakukan 3 transek kuadran dengan masing-masing transek terdiri dari 10 plot. Stasiun 1 Dekat mangrove, menghadap laut, saat pasang, cuaca cerah kedalaman hingga 2 m dan stasiun 2 Lamun berasosiasi dengan jenis-jenis makroalga, saat surut, cuaca cerah, menghadap laut kedalaman mencapai 1.5 m). melihat kerapatan dan penutupan lamun dengan melihat frekuensi kemunculan jenis lamun dan nilai tengah kelasnya untuk melihat kerapatan dan penutupannya. ditemukan 9 jenis lamun yaitu Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, Cymodocea rotundata, Halodule uninervis, Halodule pinivolia, Halodule ovalis, Syringodium isoetifolium, Thalassodendron cilliatum. Substrat didominasi oleh substras pasir dan pasir berbatu. Distribusinya ada disetiap stasiun, namun paling banyak ada di stasiun 1 dengan jenis paling mendominasi adalah halodule sp, sedangkan di stasiun 2 banyak di dominasi oleh halodule sp dan enhalus acoroides. Kerapatan lamun paling rendah ada distasiun 2. Pengelolaan yang sesui di kawasan lamun yaitu pengelolaan berbasis ekologi.

Potensi Pengembangan Budidaya Pada Kawasan Konservasi Perairan Datok Bandar Kabupaten Lingga Razai, Tengku Said; Ulfah, Fitria; Lestari, Febrianti; Apdillah, Dony; Karlina, Ita; Idris, Fadhliyah; Febrianto, Try
Dinamika Lingkungan Indonesia Vol 8, No 2 (2021)
Publisher : Universitas Riau

The development of aquaculture in the Marine Protected Area (KKP) has to recognize the sustainability and the balancing of the ecosystem in that area. It causes limited rights of users who want to develop their business, where the issuance of permits and business management regulations is an obligation that must be followed by aquaculture business developers in the KKP area. The study aimed was to formulate the technical directions in developing the potential for aquaculture business in the Marine Protected Area of Datok Bandar (KKPD) at Lingga Regency. The method used in this research is a descriptive quantitative using analysis of the carrying capacity of the environment for aquaculture, water quality parameters, and a participatory approach. The results showed that the potential area to be developed for aquaculture was 3,736.01 ha. However, based on the carrying capacity analysis, only 268,420 ha or 7.2% from the existing potential can be utilized for aquaculture. Furthermore, based on the water quality measurements for aquaculture, the KKPD area was divided into 3 designations groups of aquaculture areas, namely the KJT, KJA, and seaweed. The number of aquaculture business units that were allowed in this area was 16,776 units consisting of 10,066 small business units and 6,710 medium business units with 7 types of superior fish. The limitation of land area and some business units in conservation areas were important to ensure the sustainability of the environment in the future. The implication of this research could be used as a basis for issuing aquaculture business permits, and to ensure that small-scale aquaculture fishermen have a large proportion. In addition to ensuring the existence of local communities who were generally small farmers, conservation areas were very vulnerable to environmental changes, so the risk factors and impacts of business utilization were important to consider.

Morphometric Characteristic and Growth Responses of Enhalus acoroides Seedlings Under Different Substrate Composition Treatment Aditya Hikmat Nugraha; Said Almahdi; Aminatul Zahra; Ita Karlina
Journal Omni-Akuatika Vol 17, No 2 (2021): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2021.17.2.883

Seagrass transplantation in the large-scale requires a large number of seagrass individu from donor ecosystem. This may give negative impact as damage and reducing the number of seagrass in donor ecosystem. One of methods to overcome this case is by developing transplants using seagrass nut as source for seed. Substrate is one of factors that influence the growth of seagrass. The aim of this study was to compare the effect of differences in substrate composition on morphologi and growth of Enhalus acoroides seeds. Observations were carried out by treatment using mud, sand and mixed substrates sand with mud. The survival rate of Enhalus acoroides seeds was quite high of 100% but it had a lower value of 93.30% on sand substrate. The longest leaf is on the mud substrate with a length of 5.9 cm, the leaf width has the same size in each substrate with a value of 0.4 cm, the highest number of leaves were found in the sand and mixture substrate with 5 strands, the longest root size was in the mixed substrate with a length of 5 cm. The growth of Enhalus acoroides seagrass seeds did not show any significant difference. The highest growth was found in the mud substrate with a value of 0.10 cm/day. Keywords: Enhalus acoroides, seagrass,seed, substrate, transplantation

SEBARAN JENIS DAN TUTUPAN LAMUN DI PERAIRAN PULAU BINTAN Aditya Hikmat Nugraha; Putri Ramadhani; Ita Karlina; Susiana Susiana; Try Febrianto
JURNAL ENGGANO Vol. 6 No. 2 (2021)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.6.2.%p

Ekosistem padang lamun tersusun atas tumbuhan tingkat tinggi yang memiliki kemampuan hidup terendam di bawah permukaan laut. Pulau Bintan yang terletak di Kawasan Kepulauan Riau merupakan salah satu daerah di Indonesia yang memiliki ekosistem padang lamun dengan keanekaragaman dan tutupan lamun yang tinggi. Ekosistem padang lamun di wilayah tersebut tersebar hampir diseluruh wilayah pesisir Pulau Bintan. Penelitian ini bertujuan untuk mengkaji sebaran jenis, tutupan lamun di perairan Pulau Bintan. Metode pengamatan ekosistem padang lamun dengan menggunakan transek garis dengan bantuan transek kuadrat. Hasil dari penelitian ini menunjukan bahwa total terdapat 7 spesies lamun yang ditemukan di 5 lokasi meliputi spesies Enhalus acoroides, Thalassia hemprichii, Halophila ovalis, Halodule uninervis, Halophila minor, Cymodocea rotundata dan Syringodium isotifolium. Nilai tutupan lamun tertinggi ditemukan di stasiun 1 Berakit yaitu 59.88%. Stasiun 5 Pengudang merupakan stasiun yang banyak ditemukan lamun yaitu 6 spesies lamun. Secara umum lamun yang berada di perairan Pulau Bintan memiliki tutupan sedang. Kata Kunci : Bintan,Lamun, Sebaran, Tutupan

ASOSIASI KERANG LOKAN (Geloina erosa) PADA EKOSISTEM MANGROVE DI TANJUNG UNGGAT KECAMATAN BUKIT BESTARI KOTA TANJUNGPINANG Yuni Sinta Pratiwi; Try Febrianto; ika Anggraeni; Ita Karlina; Mario Putra Suhana; Aditya Hikmat Nugraha
JURNAL ENGGANO Vol. 6 No. 1 (2021)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.6.1.11-24

Kerang Lokan (Geloina erosa) merupakan salah satu biota yang hidup pada ekosistem mangrove. Ekosistem mangrove di Tanjung Unggat telah mengalami pengurangan luasan diakibatkan aktivitas manusia seperti pemukiman, transportasi kapal, aktivitas bongkar muat, aktivitas galangan kapal dan reklamasi. Penelitian ini dilaksanakan pada bulan Februari – Mei 2020 pada ekosistem mangrove di Tanjung Unggat Kecamatan Bukit Bestari Kota Tanjungpinang. Penelitian ini bertujuan untuk mengetahui asosiasi Kerang Lokan (Geloina erosa) pada ekosistem mangrove. Penentuan titik sampling diambil dengan metode purposive sampling sedangkan pengambilan data vegetasi mangrove digunakan transek garis sepanjang 50 m dengan transek 10x10m (Pohon), 5x5m (Anakan) serta pengambilan sampel Kerang Lokan diambil dengan menggunakan plot 5x5m didalam area mangrove. Hasil penelitian menunjukkan bahwa kerapatan mangrove di Tanjung Unggat tergolong jarang dan terdapat 8 jenis mangrove (Avicennia lanata, Rhizophora apiculata, Sonnetaria alba, Rhizophora stylosa, Rhizophora mucronata, Bruguiera parviflora, Xylocarpus granatum dan Avicennia alba). Kerang Lokan berasosiasi pada mangrove dan jenis substrat di lokasi penelitian. Kata Kunci : Asosiasi, Geloina erosa, Mangrove, Tanjung Unggat

Sosialisasi penyemaian bibit dari buah Enhalus acoroides untuk menjaga keberlanjutan ekosistem Lamun di Desa Pengudang Pulau Bintan Ita Karlina; Aditya Hikmat Nugraha; Dony Apdillah; Jelita Rahma Hidayati; Esty Kurniawati
Unri Conference Series: Community Engagement Vol 3 (2021): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.3.148-155

Seagrass ecosystems contribute to food security, climate change mitigation, and biodiversity, yet they are vulnerable to changes in the environment. Environmental factors, both natural and human-caused, are the primary cause of the loss in the area of seagrass ecosystems. Transplanting or sowing seagrass is one method for addressing this issue. The goal of this project is to maintain the seagrass environment and give coastal people with knowledge so that they may contribute to the conservation of coastal habitats, particularly seagrass ecosystems, in Pengudang Village, Bintan. The seeding process starts with a search for seagrass in areas with a dense seagrass habitat. Enhalus acoroides was chosen as the seeding object in this investigation. The findings revealed that 78% of respondents were highly aware of the existence of seagrass ecosystems (perception), 28% were very aware of the function and existence of seagrass ecosystems (understanding), and 86% significantly participated in seagrass ecosystem conservation (participation).

Analisis Target strength Kuda Laut (Hippocampus comes) Terhadap Ukuran Feren Rika Susanti; Dony Apdillah; Ita Karlina
Jurnal Kelautan Tropis Vol 25, No 2 (2022): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v25i2.13409

Seahorses are marine biota that have distinctive body characteristics that can be distinguished from other fish. Male seahorses have brood pouches. Estimation of the presence of seahorses is still very limited, an effective approach is needed to detect the presence of seahorses. The approach is carried out with an underwater acoustic approach to predict the presence of seahorses by looking at observations, namely the strength of the target. This study aims to analyze the value of Target Strength (TS) of seahorses based on size. The method used is the method of collecting experimental data. The seahorse used collected ten samples. The object placement method uses the ikat method. The TS response value was recorded using a Simrad EK-15 instrument with a frequency of 200kHz and morphometric measurements were performed. Morphometric measurements in the form of standard length measurements, seahorse head length to record acoustic signals in 3 conditions, namely females, non-pregnant males and pregnant males. Analysis of the relationship between the value of the target strength with seahorse morphometrics using statistical analysis, namely linear regression, ANOVA analysis and Tukey's follow-up test. The resulting seahorse is a species of Hippocampus. The distribution range of the resulting TS response values ranges from -58.38 dB to -67.75 dB. The result of this study is the influence of the measuring variable on the TS value formed Kuda laut merupakan biota laut yang memiliki karakteristik tubuh unik yang dapat di bedakan dari ikan lainnya. Pendugaan keberadaan kuda laut di alam masih sangat terbatas, saat ini masih menggunakan teknik visual statistik yang bersifat sampling point. Pendekatan underwater acoustic diperlukan untuk menduga keberadaan dari kuda laut di perairan, dibutukan informasi nilai pantulan akustik yang dikenal dengan target strength. Penelitian ini bertujuan untuk menganalisis nilai Target strength (TS) dari kuda laut berdasarkan ukuran. Metode yang perekaman sinyal akustik pada lingkungan alami dari habitat kuda laut. Kuda laut yang digunakan berjumlah sepuluh sampel denan metode pemeruman menggunakan thetred method. Perekaman nilai respon TS menggunakan alat scientific echosounder Simrad EK-15 frekuensi 200kHz. Pengukuran morfometrik berupa pengukuran panjang standar, panjang kepala. Data akustik dianalisis dengan perangkat lunak Sonar-5 Pro, selanjutnya analisis statistik regresi linear. Hasil penelitian menujukan hubungan nilai target strength rata-rata berkisar antara -58,38 (SD±2,93) sampai dengan -67,75 dB (SD±1,26). Hubungan TS terhadap panjang standar (PS) menunjukan hubungan positif, semakin besar ukuran kuda laut maka semakin besar pula nilai TS. Dengan formulasi TS = 20,62 log10 (PS) – 84,32 [dB], dengan koefisien determinasi sebesar 14,1 %. Sementara itu hubungan TS terhadap Panjang Kepala (PK) diformulasikan menjadi TS = 11,43 log10 (PK) – 67,72 [dB] dengan koefisien determinasi 4,1 % lebih rendah dibandingkan dengan variabel panjang standar. Hasil ini telah mempertegas bahwa ukuran kuda laut dapat mempengaruhi nilai TS.

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