Sunscreen use and awareness of chemical toxicity among beach goers in Hawaii prior to a ban on the sale of sunscreens containing ingredients found to be toxic to coral reef ecosystems

This study aims to analyze the density of megabenthos in coral reef ecosystems in the waters of Perlang Village. This research was conducted in November 2019 in the waters of Perlang Village with the megabentos data collection method using the Bentos Belt Transect (BBT) method based on COREMAP CTI LIPI (2017) with 5 data collection stations. The results found 603 individuals consisting of 9 species from 4 megabenthos families in coral reef ecosystems. Species found at the study site are Diadema setosum, Diadema antillarium (Familli Deadematidae), Drupella cornus, Drupella rugosa (Family Murcidae), Trochus sp, Trochus conus, Tectus pyramis (Family Trochidae), Tridacna gigas, and Tridacna maxima (Family Tridacnidae) . The highest attendance percentage of all stations was obtained by Diadema setosum of 47.93% (289 people). Percentage of live coral cover from 5 observation stations ranged from 57.44% - 91.78%. Observation pensions that received the highest percentage of cover values were at pension 2 with 91.78% in the very good category.

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Representative benthic habitat mapping on Lovina coral reefs in Northern Bali, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d221108 ◽

2021 ◽

Vol 22 (11) ◽

Author(s):

Anggita Kartikasari ◽

TODHI PRISTIANTO ◽

RIZKI HANINTYO ◽

EGHBERT ELVAN AMPOU ◽

TEJA ARIEF WIBAWA ◽

...

Keyword(s):

Coral Reef ◽

Coral Reefs ◽

Habitat Mapping ◽

Benthic Habitat ◽

Coral Rubble ◽

Spatial Coverage ◽

Coral Reef Ecosystems ◽

Optical Imagery ◽

Sentinel 2

Abstract. Kartikasari A, Pristianto T, Hanintyo R, Ampou EE, Wibawa TA, Borneo BB. 2021. Representative benthic habitat mapping on Lovina coral reefs in Northern Bali, Indonesia. Biodiversitas 22: 4766-4774. Satellite optical imagery datasets integrated with in situ measurements are widely used to derive the spatial distribution of various benthic habitats in coral reef ecosystems. In this study, an approach to estimate spatial coverage of those habitats based on observation derived from Sentinel-2 optical imagery and a field survey, is presented. This study focused on the Lovina coral reef ecosystem of Northern Bali, Indonesia to support deployment of artificial reefs within the Indonesian Coral Reef Garden (ICRG) programme. Three specific locations were explored: Temukus, Tukad Mungga, and Baktiseraga waters. Spatial benthic habitat coverages of these three waters was estimated based on supervised classification techniques using 10m bands of Sentinel-2 imagery and the medium scale approach (MSA) transect method of in situ measurement.The study indicates that total coverage of benthic habitat is 61.34 ha, 25.17 ha, and 27.88 ha for Temukus, Tukad Mungga, and Baktiseraga waters, respectively. The dominant benthic habitat of those three waters consists of sand, seagrass, coral, rubble, reef slope and intertidal zone. The coral reef coverage is 29.48 ha (48%) for Temukus covered by genus Acropora, Isopora, Porites, Montipora, Pocillopora. The coverage for Tukad Mungga is 8.69 ha (35%) covered by genus Acropora, Montipora, Favia, Psammocora, Porites, and the coverage for Baktiseraga is 11.37 ha (41%) covered by genus Montipora sp, Goniastrea, Pavona, Platygyra, Pocillopora, Porites, Acropora, Leptoseris, Acropora, Pocillopora, Fungia. The results are expected to be suitable as supporting data in restoring coral reef ecosystems in the northern part of Bali, especially in Buleleng District.

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Building the Capacity and Knowledge about Coral Rehabilitation of Tour Guides in Lemukutan Island

MITRA Jurnal Pemberdayaan Masyarakat ◽

10.25170/mitra.v5i2.2853 ◽

2021 ◽

Vol 5 (2) ◽

pp. 157-166

Author(s):

Dahlia Wulan Sari ◽

Achis Martua Siregar ◽

Tia Nuraya ◽

Elliska Murni Harfinda ◽

Mordik Erdiansyah

Keyword(s):

Coral Reef ◽

Test Results ◽

West Kalimantan ◽

Tour Guides ◽

Aquatic Resource ◽

Post Test ◽

Coral Reef Ecosystems ◽

Nahdlatul Ulama ◽

Tourism Attractions ◽

Department Faculty

The coral reef ecosystem is one of the marine tourism attractions on Lemukutan Island, West Kalimantan. However, currently, some locations are in a relatively degraded condition, which should be addressed. One solution to this problem is coral transplantation activities involving tour guides. As part of the effort to rehabilitate the coral reef habitats, the Aquatic Resource Management Department, Faculty of Agriculture, Nahdlatul Ulama University, West Kalimantan, conducted community development activities to increase the capacity and knowledge of tour guides regarding coral reef ecosystems and coral transplantation techniques. This training was attended by fifteen tour guides from the Lemukutan Guide Group and ARTUNA (Anak Remaja Teluk Cina) Group. The participants were previously trained under PT Pertamina (Persero) and Yayasan Jejak Pesisir Nusantara. This training was carried out in three stages: (i) materials presentation and discussions, (ii) direct practice on the field, and (iii) evaluation. The post-test results showed that the training had increased participants' understanding of coral reef ecosystems and coral transplantation techniques by 40,00% and 33,33%, respectively.

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