SUHAEMI, MUHAMMAD (2023) KELIMPAHAN KRUSTASEA PADA EKOSISTEM MANGROVE DESA KERTOMULYO, KECAMATAN TRANGKIL, KABUPATEN PATI (23dik188). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

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Abstract

ABSTRAK
(Muhammad Suhaemi 26020116140112. Kelimpahan Krustasea Pada Ekosistem Mangrove Desa Kertomulyo, Kecamatan Trangkil, Kabupaten Pati. Ita Riniatsih dan Chrisna Adhi Suryono).
Ekosistem mangrove merupakan salah satu habitat Krustasea sebagai tempat berlindung, berkembang biak dan sumber makanan. Krustasea umumnya ditemukan tersebar dan berkembang dengan hidup di dalam tanah (infauna), yang hidup di atas permukaan sedimen atau tanah (epifauna). Kelimpahan dari krustasea dipengaruhi oleh substrat dasar yang merupakan habitat untuk krustasea. Penelitian ini bertujuan untuk untuk mengetahui hubungan antara krustasea dengan substrat sedimen yang ada di vegetasi mangrove dilihat dari kelimpahan krustasea yang ada pada kawasan mangrove di Pantai Kertomulyo, Pati. Metode pengambilan data dengan menggunakan purposive sampling method. Hasil penelitian di Pantai Kertomulyo ditemukan secara umum ditemukan 4 spesies, yaitu: Avicennia alba, Avicennia lanata, Avicennia marina, dan Rhizopora mucronata, dimana kerapatan relatif mangrove pada setiap spesies didapatkan nilai pada Avicennia alba sebesar 21,89%, Avicennia lanata sebesar 39,06%, Avicennia marina sebesar 32,26% dan Rhizopora mucronata sebesar 6,792%. Tekstur sedimen di ekosistem mangrove Pantai Kertomulyo yang didapat
pada stasiun 1 tekstur sand didapatkan 69.156% dan 30.5764% termasuk silt. Pada stasiun 2 tekstur sand didapatkan 69.419% dan silt 30.58%. Stasiun 3 fraksi sand 65.5414% dan silt 34.6968%. Kelimpahan yang didapat pada stasiun satu sebanyak 43 ind/m², stasiun dua sebanyak 45 ind/m², dan pada stasiun tiga 24 ind/m².
Kata Kunci : Mangrove, Kelimpahan Krustasea, Kertomulyo, Pati

ABSTRACT
(Muhammad Suhaemi 26020116140112. Abudance crustasea Abundance in the Mangrove Forest Ecosystem in Kertomulyo Village, Trangkil, Pati Regency. Ita Riniatsih and Chrisna Adhi Suryono).
The mangrove ecosystem is a habitat for crustasea as a place of refuge, reproduction and a source of food. crustasea are generally found to be scattered and develop by living in the soil (infauna), which live on the surface of sediments or soil (epifauna). The abundance of crustasea is influenced by the base substrate which is the habitat for the crustasea. This study aims to determine the relationship between crustasea and sedimentary substrates in the mangrove vegetation seen from the abundance of crustasea in the mangrove area on Kertomulyo Beach, Pati. Methods of data collection using purposive sampling method. The results of the research at Kertomulyo Beach found that in general there were 4 species, namely: Avicennia alba, Avicennia lanata, Avicennia marina, and Rhizopora mucronata, where The relative density of mangroves in each species obtained values for Avicennia alba of 21.89%, Avicennia lanata of 39.06%, Avicennia marina of 32.26% and Rhizopora mucronata of 6.792%.The sediment texture in the Kertomulyo Beach mangrove ecosystem obtained at station 1, the
sand texture is obtained 69,156% and 30,5764% including silt. At station 2, the sand texture was obtained 69.419% and 30.58% silt. Station 3 has 65.5414% sand fraction and 34.6968% silt.The abundance obtained at station one was 43 ind / m², station two was 45 ind / m², and at station three was 24 ind / m².
Keywords : Mangroves, crustasea Abundance, Kertomulyo, pati.

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