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All Journal JURNAL PESISIR DAN LAUT TROPIS
Antonius P Rumengan
FPIK UNSRAT
Earth & Planetary Sciences

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STRUKTUR KOMUNITAS MANGROVE DI PESISIR DESA TATENGESAN, KECAMATAN POSOMAEN, KABUPATEN MINAHASA TENGGARA Maykel R Munaimbala; Carolus P Paruntu; Antonius P Rumengan
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 3 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.3.2021.38609

Abstract

The purpose of this study was to examine the structure of the mangrove community on the coast of Tatengesan, Posomaen District, Southeast Minahasa Regency, North Sulawesi. The data collection of the mangrove community structure used the line transect quadratic method measuring 10 m x 10 m 5 times. The research implementation period is 6 (six) months in 2021, starting from the preparation of proposals, data analysis, examination of research results, and the implementation of thesis examinations. Based on the results of the study, found 3 types of mangroves, namely: Rhizophora apiculata, Rhizophora mucronata, and Bruguiera gymnorrhiza. The value of the highest species relative density was found on transect 2 with a value of 88.33% by R. mucronata. For the value of the highest relative frequency of species on transects 1,2 and 3 by R. mucronata, namely 8.3 cm/m. The highest relative species cover was R. mucronata with a value of 76.99% on transect 2. The highest important value index was found in R. mucronata, which was 220.88 on transect 2. The highest diversity index was found on transect 3 with a value of 0.85. The highest evenness index was found on transect 1 with a value of 0.99. For further research, it is necessary to conduct an inventory of mangrove species using the roaming method to find out all the species in the research location.Keywords: Mangrove, Tatengesan, Community, Diversity and Evenness
STRUKTUR KOMUNITAS MANGROVE DI KELURAHAN TAPUANG, KECAMATAN TAHUNA, KABUPATEN SANGIHE Romario Pohos; Calvyn F.A Sondak; Antonius P Rumengan
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 3 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.3.2021.38611

Abstract

The information about mangrove forest community structure in Tapuang village has never been reported. The location of the mangrove forest in this village is near  to the settlements. Three line transects with 50 m distance were laid perpendicular to the shore. In each line transect, 5 quadrants (10 x 10 m2) were established. The data were analyzed using several parameters density, frequency, dominance, important index value and diversity. This study found 5 mangrove species namely Avicennia marina, Sonneratia alba, Sonneratia ovata, Rhizophora stylosa and Nypa fruticans. Avicennia marina was the most species found in each transects and had the highest density, frequency, and dominance values.  The highest important value index (INP) was found in  Avicennia marina  in transect 2 with a INP value 183.80. Mangrove species diversity index for tree category in each transect was low (H'≤1) ranges from 0.99.Key Words: Tapuang Village, Mangrove, Community Structure 
Co-Authors Calvyn F.A Sondak Carolus P Paruntu Maykel R Munaimbala Romario Pohos