Records of sea star (Echinodermata, Asteroidea) diversity in a disturbed tropical seagrass meadow

Fairoz, Mohamed Farook Mohamed; Rozaimi, Mohammad; Nastasia, W. F.

doi:10.32800/amz.2018.16.0243

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Collected samples were preserved in an icebox and taken to the laboratory for documentation and species identification. The specimens were identified by using following taxonomical descriptions and keys, Poutiers (1998); Tan and Clements (2008); Chan (2009); Wong (2009); Cob et al 2012; Hamli et al (2013); Fairoz et al (2018); Herbert et al (2018). All taxonomic names were rechecked with WoRMS (2020).…”

Section: Collection Of Samplesmentioning

confidence: 99%

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

et al. 2020

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Abstract. Al-Asif A, Hamli H, Abu Hena MK, Idris MH, Gerusu GJ, Ismail JB, Karim NU. 2020. Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia. Biodiversitas 21: 4606-4615. Present study dealt with the on faunal and in faunal assemblage from seagrass bed, mangrove area, and adjacent non-mangrove and seagrass (NMS) in Punang-Sari estuary, Lawas, Sarawak, Malaysia. Samples were collected from June to July 2019 by using quadrates and handpicking from the outside the sampling area to know the real checklist of surface macrofauna in this area. A ten-meter transect line was settled in three habitat areas where sampling was performed by putting three quadrates (0.35m×0.35m). Epifauna and infauna samples were collected from inside the quadrate and sieved using 0.4 mm mesh size sieve. A total of 111 species of gastropod (87 species from 30 families), bivalve (18 species from 9 families), Polychaeta (2 species), echinoderms (1 species), and crustacean (3 species) were recorded during the study period. Seagrass meadows comprised most diverse and abundant faunal (50 species) assemblage followed by mangrove habitats (48 species), and NMS (20 species). The dendrogram revealed two significant habitats in the sampling site. PCA analysis revealed, seagrass habitat sheltered a higher number of species followed by mangrove and NMS area. Jaccard similarity index revealed seagrass and mangrove habitats (0.42) contains the highest similar species amongst all habitats compared to mangrove and non-seagrass-mangrove area (0.26). Out of total species recorded (101), only ten species were reported as least concern, and 2 species hold deficient data status, and the rest are not evaluated. Bio-assemblage in seagrass habitat was found rich compared to other habitats, which could be useful for future ecological investigation and marine ranching.

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Section: Collection Of Samplesmentioning

confidence: 99%

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

et al. 2020

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“…Lokasi kawasan kajian ini terletak di muara Sungai Pulai, Johor (1°20′3″N 103°32′58″E). Kedua-dua kawasan kaya dengan taburan spesies rumput laut (Ahmad et al 2015) dan organisma marin bentik (Ara et al 2011;Arshad et al 2010;Cob et al 2014;Fairoz et al 2018;Shi et al 2014). Meskipun dataran rumput laut Tanjung Adang kelihatan semakin pulih akibat pembinaan pelabuhan Tanjung Pelepas namun pembangunan sedang giat dirancang untuk kawasan tersebut.…”

Section: Bahan Dan Kaedah Kawasan Kajianunclassified

Sumber Penyumbang Karbon ke dalam Sedimen Dataran Rumput Laut di Muara Sungai Pulai, Johor, Malaysia

Hidayah¹,

Rozaimi²,

Nadzir³

2019

JSM

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ABSTRAKTerdapat banyak kajian karbon biru yang menggunakan kaedah penjejak isotop untuk mendapatkan maklumat mengenai sumbangan sumber bahan organik (OM) di dalam sedimen. Objektif kajian ini terbahagi kepada dua iaitu untuk mengetahui sumbangan sumber kepada takungan OM dan untuk membandingkan keberkesanan penggunaan dua jenis isotop stabil (δ 13 C dan δ 15 N) atau satu jenis isotop stabil (δ 13 C) dalam menentukan sumbangan OM di kawasan persampelan. Sampel rumput laut, makroalga, seston dan epifit di kawasan muara Sungai Pulai dianalisis dan diukur menggunakan jisim aliran nisbah isotop (IRMS). Analisis isotop stabil melalui R (SIAR) pula digunakan untuk menganggarkan sumbangan relatif keempat-empat sumber tersebut kepada takungan OM sedimen. Sampel seston mencatatkan nilai tertinggi (53 -98%) dan rumput laut mencatatkan nilai terendah (7%) dalam sumbangan OM di dalam sedimen dataran rumput laut. Ini menunjukkan sumber luar (aloktonus) memainkan peranan yang penting kepada penambahan zarah terampai. Menggunakan dua penjejak isotop stabil, plot kepadatan menunjukkan sumbangan yang lebih kecil oleh seston (96.18 -99.82%) berbanding menggunakan satu penjejak isotop stabil (89.15 -99.75%). Terdapat perbezaan bererti (p<0.05) antara nilai julat peratus kebolehpercayaan (CI95%) penggunaan dua penjejak isotop stabil (δ 13 C dan δ 15 N) dan nilai julat peratus kebolehpercayaan (CI95%) penggunaan satu penjejak isotop stabil (δ 13 C). Hal ini menunjukkan nilai julat peratus kebolehpercayaan (CI95%) penggunaan dua penjejak isotop stabil lebih kecil iaitu bermaksud kebolehpercayaan adalah lebih tinggi melalui kaedah ini dalam pemodelan sumbangan sumber OM di kawasan kajian. Kata kunci: Bahan organik; isotop stabil; model pencampuran Bayesian; SIAR ABSTRACTThere are many blue carbon studies using isotopic tracer methods to obtain information on the source contribution of organic materials (OM) in the sediment. The objectives of this research were to identify the sources contributing to the sediment OM pool, and to compare the reliability of using dual stable isotopes (δ 13 C and δ 15 N) or single stable isotope (δ 13 C) in determining the source contributions of OM in the sampling area. Seagrass, macroalgae, seston and epiphyte samples in Sungai Pulai estuary were analyzed and measured using isotopic ratio mass spectrometry (IRMS). The relative contribution of the four sources to the OM pool sediment was estimated by using Stable Isotope Analysis in R (SIAR). Seston recorded the highest value (53 -98%) and seagrass recorded the lowest value (7%) in OM contribution in the sediments of the seagrass meadow. This shows that external input (allochthonous) plays an important role in the addition of suspended particles. By using dual stable isotope tracer, density plots showed a smaller range of contribution by seston (96.18 -99.82%) than using a single tracer (89.15 -99.75%). There is a significant difference (p<0.05) between the value of the reliability percentage range (CI95%) using dual stable isotope tracer (δ 13 C and δ 15...

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Status, Biodiversity, and Ecosystem Services of Seagrass Habitats Within the Coral Triangle in the Western Pacific Ocean

et al. 2022

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Records of sea star (Echinodermata, Asteroidea) diversity in a disturbed tropical seagrass meadow

Cited by 5 publications

References 13 publications

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

Sumber Penyumbang Karbon ke dalam Sedimen Dataran Rumput Laut di Muara Sungai Pulai, Johor, Malaysia

Status, Biodiversity, and Ecosystem Services of Seagrass Habitats Within the Coral Triangle in the Western Pacific Ocean

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