Hubungan Kerapatan Mangrove Dengan Kepadatan Gastropoda Di Kawasan Mangrove Desa Tungkal Satu Kecamatan Tungkal Ilir Kabupaten Tanjung Jabung Barat

Prahesti, Hasnaa (2025) Hubungan Kerapatan Mangrove Dengan Kepadatan Gastropoda Di Kawasan Mangrove Desa Tungkal Satu Kecamatan Tungkal Ilir Kabupaten Tanjung Jabung Barat. S1 thesis, UNIVERSITAS JAMBI.

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Abstract

Ekosistem mangrove tumbuh di muara sungai, daerah pasang surut atau tepi laut. Ekosistem mangrove berfungsi sebagai daerah asuhan, daerah mencari makan dan daerah pemijahan bagi bermacam-macam jenis hewan akuatik seperti ikan, crustacea, moluska, bivalvia, gastropoda dan lainnya. Tujuan penelitian ini untuk mengetahui hubungan antara kerapatan mangrove dengan kepadatan gastropoda. Penelitian ini dilaksanakan di Kawasan Wisata Mangrove Pantai Kelapa, Desa Tungkal Satu, Parit 9, Kecamatan Tungkal Ilir, Kabupaten Tanjung Jabung Barat, Provinsi Jambi, pada tanggal 1 Februari – 1 Maret 2025. Metode yang digunakan dalam penelitian ini adalah metode survey dan pengambilan data menggunakan metode LIT (line intercept transect) sebanyak 3 stasiun dengan ukuran plot 10 x 10 m dengan mengambil sampel mangrove berupa daun dan buah mangrove serta pengambilan sampel gastropoda. Peubah yang diamati dalam penelitian ini adalah hubungan kerapatan mangrove dengan kepadatan gastropoda yang terdiri dari kerapatan mangrove, jenis mangrove, komposisi jenis mangrove, kepadatan gastropoda dan jenis gastropoda. Berdasarkan hasil penelitian ditemukan 4 spesies mangrove yaitu jenis Sonneratia alba, Rhizopora mucronata, Avicennia alba, dan Nypa fruticans. Dengan nilai kerapatan mangrove berkisar dari 733,333 ind/ha – 1.266,666 ind/ha, dengan komposisi mangrove tertinggi ditempati oleh spesies Rhizopora mucronata dengan nilai 52 %. Gastropoda yang ditemukan teridentifikasi 10 spesies dengan kepadatan gastropoda tertinggi terdapat pada stasiun 3 dengan nilai 11.233,33 ind/ha. Indeks keanekaragamaan (H’) spesies 1,72-1,88 yang masuk kedalam kategori sedang. Indeks Keseragaman (E) dengan nilai 0,78 – 0,85 termasuk kategori tinggi. Indeks dominasi (C) dengan nilai 0,17 – 0,21 termasuk kedalam kategori rendah. Analisis regresi linear sederhana meenunjukkan nilai R2 = 0,1459 termasuk kedalam korelasi sangat lemah. Disimpulkan bahwa kawasan ekosistem mangrove pantai kelapa dalam kondisi stabil. Dengan kerapatan mangrove tidak memberikan pengaruh yang signifikan terhadap kepadatan gastropoda. Mangrove ecosystems grow at river mouths, tidal areas, or coastal areas. Mangrove ecosystems function as nurseries, feeding grounds, and spawning grounds for various types of aquatic animals such as fish, crustaceans, mollusks, bivalves, gastropods, and others. The purpose of this study was to determine the relationship between mangrove density and gastropod density. This study was conducted in the Kelapa Beach Mangrove Tourism Area, Tungkal Satu Village, Parit 9, Tungkal Ilir District, Tanjung Jabung Barat Regency, Jambi Province, from February 1 to March 1, 2025. The method used in this study was a survey and data collection using the LIT (line intercept transect) method at 3 stations with plot sizes of 10 x 10 m, taking mangrove samples in the form of leaves and mangrove fruits as well as gastropod samples. The variables observed in this study were the relationship between mangrove density and gastropod density, consisting of mangrove density, mangrove species, mangrove species composition, gastropod density, and gastropod species. Based on the research results, four mangrove species were found, namely Sonneratia alba, Rhizopora mucronata, Avicennia alba, and Nypa fruticans. The mangrove density ranged from 733.333 ind/ha to 1,266.666 ind/ha, with the highest mangrove composition occupied by the species Rhizopora mucronata with a value of 52%. Ten species of gastropods were identified, with the highest gastropod density found at station 3 with a value of 11,233.33 ind/ha. The species diversity index (H’) ranged from 1.72 to 1.88, which falls into the moderate category. The evenness index (E) ranged from 0.78 to 0.85, which falls into the high category. The dominance index (C) ranged from 0.17 to 0.21, which falls into the low category. Simple linear regression analysis showed an R² value of 0.1459,which falls into the very weak correlation category. It is concluded that the coastal mangrove ecosystem in Kelapa is in a stable condition. Mangrove density does not significantly influence gastropod density.

Type:	Thesis (S1)
Uncontrolled Keywords:	Gastropods, Mangrove Density, Coconut Beach
Subjects:	L Education > L Education (General)
Divisions:	Fakultas Peternakan > Pemanfaatan Sumber Daya Perikanan
Depositing User:	PRAHESTI
Date Deposited:	10 Nov 2025 07:09
Last Modified:	10 Nov 2025 07:09
URI:	https://repository.unja.ac.id/id/eprint/87578

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