Biodiversity of Macroalgae in Coastal Areas of Drini, Yogyakarta, Indonesia

BIODIVERSITY OF MACROALGAE IN COASTAL AREAS OF DRINI ,

YOGYAKARTA, INDONESIA

Zulfikar Achmad Tanjung*, Mei Ria Santi, Yeni Rahmawati,

and Eka Sunarwidhi Prasedya

Marine Study Club, Faculty of Biology, Gadjah Mada University, Yogyakarta

*E-mail : za_tanjung@yahoo.com

Abstract

A comprehensive investigation on macroalgae communities has been conducted in coastal areas of Drini, Yogyakarta on December 2009. Coastal areas of Drini has a unique ecosystem. It has seagrass bed (Thalasia hemprichii) beside seaweed bed. The objectives of the present study were to investigate the biodiversity and frequency of macroalgae species in this coast. Sample taken by combining quadrat plot and line transect (NaGISA protocol). The biodiversity comprised of 15 species from 15 genus and 10 family. In high tide Padina minor have the higest relative abundance  that is  45.89% and also have the highest importance index (67.04). In mid tide Padina minor have the higest relative abundance  that is  24.74%, and followed Borgesenia forbesii 23.81%, Chaetomorpha linum 15.56%, and Laurencia corallopsis 13.47%. The highest importance index in mid tide is Borgesenia forbesii (40.48). In low tide Laurencia corallopsis have the highest relative abundance  that is 17.13%, and followed Chaetomorpha linum 16.15%, Padina minor 15.02%, Valonia aegagropila 13.20%, Borgesenia forbesii 12.5%, and Gellidiela sp. 10.53%. The highest importance index in low tide is Borgesenia forbesii (27.92). In 1 m depth, Borgesenia forbesii have the higest relative abundance  that is  28.49%, and followed Laurencia corallopsis 23.65%, Chaetomorpha linum 23.47%, and Valonia aegagropila 13.08%. The highest importance index in 1 m depth is Borgesenia forbesii (49.64).

Key words: biodiversity, macroalgae, Drini, seagrass bed

4 thoughts on “Biodiversity of Macroalgae in Coastal Areas of Drini, Yogyakarta, Indonesia

  1. Dian Pribadi Perkasa says:

    “Coastal areas of Drini has a unique ecosystem. It has seagrass bed (Thalasia hemprichii) beside seaweed bed.”
    — Line 2-3 —-

    Apa relevansi keunikan tersebut dengan data biodiversitas dan frekuensi makroalga yang anda dapatkan dari penelitian anda di ekosistem ini? Atau informasi itu bukan bagian dari hipotesis yang anda susun, hanya untuk nambah panjang abstrak n latar belakang aja?

  2. ZA Tanjung says:

    Sebenarnya hal yang ditanyakan memang adalah hipotesis dan tujuan dari penelitian ini.
    Untuk biar tambah panjang abstractnya, memang kami diminta untuk etended abstract. sehingga kalimat tersebut kami cantumkan.

  3. Dian Pribadi Perkasa says:

    Maaf saya belum dapat jawaban untuk pertanyaan saya yang pertama.

    Jika memang hal itu merupakan hipotesis dan tujuan dari penelitian ini, saya hanya memperoleh data penelitian saja dari extended abstract ini, belum ada jawaban dari hipotesis yang anda susun.

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