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Indri Manembu
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Earth & Planetary Sciences

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Identifikasi keanekaragaman lamun dan ekhinodermata dalam upaya konservasi Krisandy Bengkal; Indri Manembu; Calvyn Sondak; Billy Wagey; Joshian Schaduw; Laurence Lumingas
JURNAL PESISIR DAN LAUT TROPIS Vol. 7 No. 1 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.1.2019.22819

Abstract

Lamun memegang peran penting di komunitas pesisir karena merupakan salah satu faktor pendukung dari berbagai macam flora dan fauna, mempengaruhi produktivitas perairan pesisir, penstabil sedimen  mengontrol kejernihan dan kualitas air, serta dapat mempengaruhi ekosistem lain di sekitarnya. Tujuan dari penelitian ini adalah menganalisis keanekaragaman spesies lamun dan mengidentifikasi keanekaragaman ekhinodermata yang ditemukan di pesisir Kelurahan Tongkaina. Metode yang digunakan dalam penelitian ini yaitu metode Seagrass Watch. Data hasil penelitian, ditemukan lima jenis lamun, yaitu Cymodocea rotundata, Cymodocea serrulata, Thalassia hemprichii, Syringodium isoetifolium dan Enhalus acoroides yang terdiri dari dua famili yaitu Hydroccharitaceae dan Potamogentonaceae. Jenis lamun yang sering ditemui di Stasiun I adalah Cymodocea rotundata dengan nilai INP = 109,10 dan di Stasiun II Syringodium isoetifolium dengan nilai INP = 141,80. Enhalus acoroides adalah jenis lamun yang jarang ditemui pada kedua stasiun pengamatan, dengan nilai INP = 3,19 di Stasiun I dan di Stasiun II nilai INP = 52,30. Ditemukan tiga spesies ekhinodermata yang terdapat dalam transek kuadrat yaitu Protoreaster nodosus Ekhinothrix calamaris dan Linckia laevigata. Indeks keanekaragaman ekhinodermata di Stasiun I dengan nilai H' = 0,500 dan di Stasiun II dengan nilai H' = 0,410.
KONDISI TERUMBU KARANG PULAU MANTEHAGE KABUPATEN MINAHASA UTARA PROVINSI SULAWESI UTARA Ardy Kase; Indri manembu; Joshian Schaduw
JURNAL PESISIR DAN LAUT TROPIS Vol. 7 No. 3 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.3.2019.24466

Abstract

Coral reefs are coastal ecosystems with the highest level of diversity. Corals are invertebrates that are included in the Phylum Coelenterata (hollow animal) or Cnidaria. Whereas coral reefs are a collection of millions of polyps. Natural phenomena and various anthropogenic activities threaten the health and presence of Mantehage Island coral reefs and the lack of information about the health conditions of coral reefs on Mantehage Island. The purpose of this study is to determine the condition of coral reefs andto  provide baselines data on Mantehage Island. Data collection was done by using UPT  method (Underwater Photo Transect). Underwater Photo Transect carried out by underwater shooting using a digital camera that was shielded (housing). Image analysis were done using the CPCe software (Coral Point Count with Excel extensions). The results of coral reef health conditions at four stations on Mantehage Island shows, coral reef cover at each station as follows, station 1 (one) 53.00% were in good condition, station 2 (two) 25.40% were in a moderate condition, station 3 (three) 16.49% were in poor condition, and station 4 (four) 42.07% were in a moderate condition. From the four stations, the condition of Mantehage Island's coral reefs were in the moderate category with a percentage of 34.24%.Keywords:. Mantehage Island, Terumbu Karang, UPT, CPCe
Co-Authors Ardy Kase Billy Wagey Calvyn F. A. Sondak, Calvyn F. A. Joshian Schaduw Krisandy Bengkal Laurence Lumingas