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Mapping Seagrass Distribution and Cover in Morotai Island District, North Maluku Province

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Last updated: 01 Jan 2025

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Abstract

Seagrass is a type of marine plant that offers significant ecological and human benefits. It is found in many tropical waters, including those around Morotai Island. However, reliable scientific information about the condition of seagrass beds in Indonesia, particularly in Morotai Island Regency, still needs improvement. This research analyzed the distribution and coverage of seagrass in Morotai Island Regency, conducted from June to September 2024. Seagrass samples were collected from six sub-districts: South Morotai, East Morotai, North Morotai, Morotai Jaya, Southwest Morotai, and Rao Island. Observations were conducted in situ, and distribution maps were created using ArcView GIS. Seagrass coverage was assessed using the transect plot method. The results revealed 12 species of seagrass in Morotai Island Regency. Out of 81 observation points, seagrass was found in 64 locations across the six sub-districts. The distribution of specific species is as follows: Enhalus acoroides at 37 points (45.68%), Thalassia hemprichii at 46 points (56.79%), Cymodocea serrulata at 34 points (41.98%), Cymodocea rotundata at 43 points (53.09%), Halodule uninervis at 25 points (30.86%), Halodule pinifolia at 37 points (45.68%), Thalassodendron ciliatum at 2 points (2.47%), Halophila minor at 16 points (19.75%), Halophila ovalis at 18 points (22.22%), Halophila spinulosa at 5 points (6.17%), Halophila decipiens at 1 point (1.23%), and Syringodium isoetifolium at 27 points (33.33%). The seagrass coverage in Morotai Island ranges from sparse to dense. Overall, the water conditions in Morotai Island Regency are still relatively good for supporting seagrass growth.

DOI

10.21608/ejabf.2024.392241

Keywords

Seagrass, Seagrass distribution, Seagrass cover, Seagrass mapping, Morotai Island

Authors

First Name

Nur

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et al.

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Volume

28

Article Issue

6

Related Issue

51371

Issue Date

2024-11-01

Receive Date

2024-11-17

Publish Date

2024-11-01

Page Start

373

Page End

398

Print ISSN

1110-6131

Online ISSN

2536-9814

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https://ejabf.journals.ekb.eg/article_392241.html

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https://ejabf.journals.ekb.eg/service?article_code=392241

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21

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Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Mapping Seagrass Distribution and Cover in Morotai Island District, North Maluku Province

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Article

Created At

23 Dec 2024