Abstract
Serangan Island is one of the tourism destinations in Bali which is administratively belong to the municipality of Denpasar. Tourism development near with the segrass habitat cause the segrass ecosystem being degraded in the waters of Serangan Island. This study was aimed to determine the diversity and conditions of seagrass species which were observed from the density and percentage of seagrass coverage and to examine the effect of water quality on the percentage of seagrass coverage. This research was conducted from February to March 2017 on Serangan Island using quantitative descriptive method. Sampling was conducted at three stations by taking data and samples of seagrass, measuring water quality (temperature, salinity, pH, turbidity, substrate observation) and analyze of nitrates and phosphates content. Seven types of seagrass species were found i.e. Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Halodule pinifolia, Syringodium isoetifolium, and Thalassodendron ciliatum. The study showed that the diversity index value was in the medium category. The density of seagrass was classified as very tight (condition scale of 5). The highest density was found on Cymodocea rotundata spesies at station I about 777 ind/m2. The highest percentage of seagrass coverage (79,55%) was found in station I which classified as good condition, while station II and station III were classified as damaged condition with value 13.65% and 20,79% respectively. Finally, the water quality parameters have relatively low effect to seagrass coverage percentage.
Highlights
Abstrak Pulau Serangan merupakan salah satu destinasi Pariwisata di Bali yang secara administratif masuk ke dalam wilayah Kotamadya Denpasar
of the tourism destinations in Bali which is administratively belong to the municipality of Denpasar
near with the segrass habitat cause the segrass ecosystem being degraded in the waters of Serangan Island
Summary
Lamun (seagrass) merupakan merupakan tumbuhan berbiji (angiospresmae) yang berbunga dan hidup pada perairan dangkal yang masih mendapatkan cahaya matahari sehingga mampu menghantarkan zat-zat hara, oksigen dan menggangkut hasil metabolisme lamun pada lingkungan sekitarnya (Hartati et al, 2012; Rahman et al, 2016; Wagey, 2013). Perairan Pulau Serangan termasuk pada ekosistem pesisir yang banyak dimanfaatkan untuk berbagai aktifitas manusia, pariwisata serta pembangunan dan reklamasi Pulau Serangan yang berdampak pada kondisi padang lamun yang mengakibatkan banyak terjadinya degradasi (Rahardiarta et al, 2019). Selain itu kegiatan budidaya rumput laut di Pulau Serangan yang menggunakan metode lepas dasar dan metode apung dapat menutupi dan menghilangkan lamun sehingga lamun cenderung mengalami kematian serta penambatan dan penjangkaran perahu dalam jangka waktu lama pada areal padang lamun secara langsung mematikan lamun yang ada di bawah kapal (Sudiarta, 2011). Penelitian ini menjadi penting dilakukan untuk mengetahui keadaan atau kondisi padang lamun di Perairan Pulau Serangan sehingga sebagai dapat menjadi informasi dalam pengembangan dan pemanfaatan wilayah pesisir di Pulau Serangan guna menjaga kelestarian ekosistem padang lamun.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
