CD Skripsi

Karakteristik Akar Napas Pohon Api-Api (Avicennia Alba) Pada Pantai Bermangrove Di Wilayah Bengkalis, Riau

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This research, conducted in Sepahat Village, Bengkalis Regency, Riau, aimed to reveal the morphological and morphometric characteristics of Avicennia alba pneumatophores in intertidal habitats experiencing sediment accretion. Pneumatophore samples were collected along transect lines, set at 10-meter intervals perpendicular to the coastline. From 34 excavatable pneumatophores, findings showed the substrate texture at the study site was predominantly sand (73.7%), with the highest organic matter content (37.1%) in the back zone. Only two tree species were present: Avicennia alba (locally known as "api-api") and Sonneratia alba ("perepat"), with Avicennia alba being dominant. Each pneumatophore comprised two sections: an upper, greenish, and denser part, and a lower, pale whitish part with a less dense structure. Pneumatophore density ranged from 102-233 roots/m², averaging 154 roots/m². Those emerging above the substrate surface measured 1-25 cm in height, averaging 6.9 cm, with most not exceeding 10 cm. The total pneumatophore height varied from 82-530 mm, with an average of 226 mm. Lenticels, essential for gas exchange, were found exclusively on the upper pneumatophore surface, numbering 64-176 per pneumatophore. Nutritional roots were also observed growing laterally from the pneumatophores, particularly on the lower section. The upper part averaged 2.3 nutritional roots per pneumatophore (172 mm long), while the lower part averaged 4.8 roots per pneumatophore (121.4 mm long). Notably, 65% of the Avicennia alba pneumatophores at the site were buried, which likely hindered their gas exchange function. This also suggests significant sediment accumulation or accretion occurring at the research location.

Keywords : Avicennia Alba, Api-Api, Bengkalis

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1803112077

Penerbit

Pekanbaru : Universitas Riau FMIPA Biologi., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1803112077

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Mutia

Versi lain/terkait

Lampiran Berkas

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