Abstract. Purwanto RH, Mulyana B, Sari PI, Hidayatullah MF, Marpaung AA, Putra ISR, Putra AD. 2021. The environmental services of Pangarengan mangrove forest in Cirebon, Indonesia: conserving biodiversity and storing carbon. Biodiversitas 22: 5609-5616. Pangarengan mangrove forest in Cirebon, Indonesia, plays a vital role in providing ecosystem services, such as conserving biodiversity and storing carbon. The area of the Pangarengan mangrove forest is relatively small, but it is home to diverse flora and fauna. Also, it can mitigate climate change by storing carbon. Unfortunately, no specific records exist on biodiversity and carbon stock in the Pangarengan mangrove forest. This study aimed to record the diversity of flora and fauna of the Pangarengan mangrove using a survey approach and to estimate its carbon stocks using a non-destructive sampling method, except for seedlings, on 78 sampling plots, distributed randomly along the banks of the Cipaluh River. The results revealed that the flora consisted of 24 species, and the fauna was composed of 12 species. The mangrove species in the Pangarengan mangrove forest was dominated by Rhizophora mucronata. The carbon stocks varied among species or the life stages of plants (seedlings, saplings, poles, and trees). The carbon stock of Avicennia marina trees was the highest (110.810 MgC/ha), and the lowest was the seedlings of the Avicennia alba (0.005 MgC/ha). Furthermore, the interpretation of the images showed that the Pangarengan mangrove forest area is 21.5 ha. The mangrove forest is located in the coastal area of the Java Sea, 2.4 km from the residential area of Pangarengan village. It is crucial to preserve the Pangarengan mangrove forest because it functions as a source of biodiversity and carbon storage.
Sofiyanti N, Iriani D, Fitmawati, Marpaung AA. 2019. Morphology, palynology, and stipe anatomy of four common ferns from Pekanbaru, Riau Province, Indonesia. Biodiversitas 20: 327-336. The fern explorations had been conducted in Pekanbaru, Riau Province from 2013 to 2017. The objectives of this study were to characterize the morphological characters, to examine the spore features and stipe anatomy characters of four common ferns from Pekanbaru. The specimens were collected from the fields using the exploration method from 21 study sites from 10 sub-districts. The spores were then observed using a digital microscope. A total of four fern species were known as the most common fern species in this region, i.e., Dicranopteris linearis, Stenochlaena palustris, Nephrolepis biserrata, and Davalia denticulata. This study examined the morphology, palynology and stipe anatomy of these four common ferns from Pekanbaru, Riau. The anatomical preparation was conducted using paraffin method while spore preparation using acetolysis method. We found dimorphic ferns (Stenochlaena palustris and Davallia denticulata) and monomorphic ferns (Dicranopteris linearis and Nephrolepis biserrata). The vascular bundle of stipes of four species examined is similar, i.e., amphicribral concentric, however, the vascular bundles within the species varies in size. We also observed similar type of stele, atactostele, among the species. The spore features found in this study were monolete and trilete with prolate and subprolate shape. The result of this study supports the anatomical data of the examined species.
Abstrak: Pulau Rangsang meupakan salah satu pulau utama di Kabupaten Kepulauan Meranti, Provinsi Riau yang mempunyai keunikan habitat bagi berbagai jenis flora termasuk golongan tumbuhan paku. Namun data mengenai keanekaragaman flora paku di pulau ini belum pernah dilaporkan sebelumnya. Tujuan dari penelitian ini adalah untuk menginventarisasi jenis-jenis tumbuhan paku di Pulau Rangsang serta mengkarakterisasi morfologi dan sporanya. Pengambilan sampel dilakukan dengan metode eksplorasi sedangkan pembuatan preparat spora dengan metode asetolisis dan tanpa asetolisis. Sebanyak 23 jenis tumbuhan paku telah di identifikasi di lokasi kajian, yang tergolong dalam 8 Famili, 3 Ordo dan 1 Divisi Polypodiophyta. Tipe dasar spora yang ditemukan adalah monolete, dan trilete, dengan laesura monosulkat dan trikomonosulkat. Tipe spora berdasarkan ukuran yang ditemukan adalah ukuran spora medium dan spora besar.Kata Kunci: Morfologi, kawasan pesisir, paku laut, palinologi, sporaAbstract: Rangsang Island is one of main island of Kepulauan Meranti, Riau Province that poses a uniqe habitat for flora including ferns. However, the data of fern diversity from this island had not been reported. The aim of this study were to inventory ferns from Rangsang Island and to characterize their morphologies and spore characteristics. Sample collection was carried out using exploration method, while spore preparation used acetolysis and non acetolysis method. A total of 23 fern species are identified from the study sites. They belong to 8 families, 3 orders from Division Polypodiophyta. Basic spore type observed in this study are monolete and trilete, with monosulcate and trichomonosulcate laesura. Spore types based on its size found in this study are medium and large spore.Keywords: coastal area, morphology, palynology, sea fern, spore
Mangrove Pangarengan yang terletak di Pesisir Kecamatan Pangenan, Kabupaten Cirebon masih terbatas informasi tentang keanekaragaman tumbuhannya. Penelitian ini bertujuan untuk mengetahui keanekaragaman tumbuhan yang ada di kawasan hutan mangrove Pangarengan Cirebon. Penelititan ini merupakan penelitian deskriptif dengan pengambilan data menggunakan metode jelajah. Analisis data dilakukan dengan menggunakan metode deskripsi keanekaragaman tumbuhan (description method to species diversity). Identifikasi dan klasifikasi data berdasarkan jenis yang ditemukan. Berdasarkan hasil penelitian, ditemukan sebanyak 24 spesies tumbuhan yang berasal dari kelas yang sama yaitu Magnoliopsida, dan terdiri atas 10 ordo, 15 Famili, dan 23 Genus. Famili yang paling banyak ditemukan adalah Asteraceae yaitu sebanyak 5 spesies. Perawakan tumbuhan yang dijumpai pada penelitian ini adalah pohon, liana, perdu, dan herba. Berdasarkan hasil pengamatan di lapangan, tumbuhan yang mendominasi di kawasan hutan mangrove Pangarengan adalah mangrove sejati Rhizophora mucronata yang banyak tumbuh di sepanjang tepi sungai, dan Avicennia marina yang banyak ditemukan di sepanjang tepi laut
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