scholarly journals Fish biodiversity in coral reefs and lagoon at the Maratua Island, East Kalimantan

2012 ◽  
Vol 13 (3) ◽  
pp. 145-150 ◽  
Author(s):  
HAWIS H. MADDUPPA
Keyword(s):  
Coral Reefs ◽  
East Kalimantan ◽  
Fish Biodiversity

scholarly journals CORAL REEF HABITAT CHANGING ASSESSMENT OF DERAWAN ISLANDS, EAST KALIMANTAN, USING REMOTE SENSING DATA

2010 ◽  
Vol 2 (-) ◽  
Author(s):  
MARLINA NURLIDIASARI ◽  
SYARIF BUDIMAN
Keyword(s):  
Remote Sensing ◽  
Coral Reef ◽  
Coral Reefs ◽  
Change Detection ◽  
Remote Sensing Data ◽  
Landsat Tm ◽  
East Kalimantan ◽  
Marine Diversity ◽  
Multi Temporal ◽  
Remote Sensing Techniques

Coral reefs in Dcrawan Islands are astonishingly rich in the marine diversity. However, these reefs are threatened by humans. Destructive fishing methods, such as trawl, blasting and cyanide fishing practise, are found to be the main cause of this degradation. The coral reefs habitat reduction is also caused by tourism activities due to trampling over the reef and charging organic and anorganic wastes. The capabilities of satellite remote sensing techniques combined with field data collection have been assessed for the coral reef mapping and the change detection of Derawan Island. Multi-temporal Landsat TM and ETM images (1991 and 2002) have been used. Comparison of the classified images of 1991 and 2002 shows spatial changes of the habitat. The changes were in accordance with the known changes in the reef conditions. The analysis shows the decrease of the coral reef and patchy seagrass percentage, while the increase of the algae composite and patchy reef percentage. Keywords : Coral Reef, Change Detection, Landsat-TM, Derawan

scholarly journals How many replicates to accurately estimate fish biodiversity using environmental DNA on coral reefs?

2021 ◽  
Author(s):  
Salomé Stauffer ◽  
Meret Jucker ◽  
Thomas Keggin ◽  
Virginie Marques ◽  
Marco Andrello ◽  
...  
Keyword(s):  
Coral Reefs ◽  
Environmental Dna ◽  
Fish Biodiversity

scholarly journals Rancang Bangun Remotely Operated Vehicle (ROV) untuk Monitoring Kondisi Terumbu Karang di Perairan Bontang

2021 ◽  
Vol 4 (2) ◽  
pp. 149-157
Author(s):  
Musa Payung ◽  
Abdul Zain
Keyword(s):  
Coral Reefs ◽  
Natural Resources ◽  
Control Device ◽  
Test Results ◽  
Remotely Operated Vehicle ◽  
Video System ◽  
East Kalimantan

Coral reefs and all the life in them are one of the natural resources owned by the Indonesian people that are invaluable. Bontang city, located in East Kalimantan, is dominated by the ocean. Observation of the condition of coral reefs has been carried out by diving (diving) or snorkeling. For certain conditions, such as difficult locations, it does not allow humans to dive and observe directly the condition of coral reefs. This study proposes an alternative observation of coral reefs in Bontang waters using ROV. ROV is an underwater explorer robot controlled by an operator with a control device. The ROV in this study uses the arduino mega2560 as a controller, the BTS7960 module as a motor driver, MS5540CM sensor, motor as a driver. The ROV is equipped with a camera to take pictures and display them on a monitor. The results show that the ROV can work in the water, the ROV movement can be controlled and can maneuver well. ROV can automatically maintain depth when not operated with a range of ± 5 cm. The camera video system works well. The image captured by the camera can be displayed on the monitor in realtime. From the test results, it was found that the delay was less than 1 second between the image captured by the camera and the image displayed.

scholarly journals Underwater robots provide similar fish biodiversity assessments as divers on coral reefs

2021 ◽  
Author(s):  
Mathilde Maslin ◽  
Silvain Louis ◽  
Karen Godary Dejean ◽  
Lionel Lapierre ◽  
Sébastien Villéger ◽  
...  
Keyword(s):  
Coral Reefs ◽  
Underwater Robots ◽  
Fish Biodiversity

scholarly journals Seagrass beds as the buffer zone for fish biodiversity in coastal water of Bontang City, East Kalimantan, Indonesia

2018 ◽  
Vol 19 (3) ◽  
pp. 1044-1053 ◽  
Author(s):  
ADITYA IRAWAN ◽  
SUPRIHARYONO SUPRIHARYONO ◽  
JOHANNES HUTABARAT ◽  
AMBARIYANTO AMBARIYANTO
Keyword(s):  
Coral Reef ◽  
Fish Species ◽  
Sampling Period ◽  
Buffer Zone ◽  
Line Transect ◽  
Seagrass Beds ◽  
East Kalimantan ◽  
Fish Biodiversity ◽  
Species Population ◽  
Local Fisherman

Irawan A, Supriharyono, Hutabarat J, Ambariyanto. 2018. Seagrass beds as the buffer zone for fish biodiversity in coastalwater of Bontang City, East Kalimantan, Indonesia. Biodiversitas 19: 1044-1053. The purpose of this study was to demonstrate theimportance of seagrass beds as a buffer zone for fish biodiversity in a coastal ecosystem. The sampling of seagrass and fish were done inseagrass beds associated with mangrove (ST1) and coral reef (ST2). Sampling period was executed from May 2011 to May 2017.Sampling was done on the lowest tide with a six-month interval. Seagrass sampling was carried out using line transect, and fishsampling was performed using set net (belat local name) operated by local fisherman. The results showed that seagrass beds at ST1composed of C. rotundata and E. acoroides and that at ST2 composed of C. rotundata, E. acoroides, H. pinifolia, H. minor and T.hemprichii. The total number of individual was 42574 divided into 112 fish species. There were 17 species (population: 15.18%)associated explicitly with ST1 and 39 species (population: 34.82%) specifically associated with ST2 while 56 fish species (population:50.0%) were prevalently spread in both stations. This research proved the existence of seagrass beds as a buffer zone for fishbiodiversity.

Cryptobenthic fish biodiversity and microhabitat use in healthy and degraded coral reefs in SE Sulawesi, Indonesia

2012 ◽  
Vol 42 (4) ◽  
pp. 433-442 ◽  
Author(s):  
Gabby N. Ahmadia ◽  
Frank L. Pezold ◽  
David J. Smith
Keyword(s):  
Coral Reefs ◽  
Microhabitat Use ◽  
Fish Biodiversity

scholarly journals Reef fishes biodiversity and conservation at the largest Brazilian coastal Marine Protected Area (MPA Costa dos Corais)

2021 ◽  
Vol 19 (4) ◽  
Author(s):  
Pedro H. C. Pereira ◽  
Luís G. F. Côrtes ◽  
Gislaine V. Lima ◽  
Erandy Gomes ◽  
Antonio V. F. Pontes ◽  
...  
Keyword(s):  
Coral Reefs ◽  
Reef Fish ◽  
Fish Species ◽  
Large Scale ◽  
Marine Protected Area ◽  
Reef Fishes ◽  
Conservation Strategies ◽  
Multiple Use ◽  
Fish Biodiversity ◽  
Southwestern Atlantic Ocean

Abstract Coral reefs harbor one of the largest fish biodiversity on earth; yet information on reef fishes is still absent for many regions. We analyzed reef fish richness, distribution, and conservation on the largest Brazilian multiple use coastal MPA; which cover a large extent of coral reefs at the SWA. A total of 325 fish species have been listed for MPA Costa dos Corais, including Chondrichthyes (28 species) and Actinopterygii (297). Fish species were represented by 81 families and the most representative families were Carangidae (23 species), Labridae (21) and Gobiidae (15). The MPA fish richness represented 44% of all recorded fish species of the Southwestern Atlantic Ocean (SWA) highlighting the large-scale importance of this MPA. A total of 40 species (12%) are registered at Near Threatened (NT), Vulnerable (VU), Endangered (EN) or Critically Endangered (CR). This study reinforces the importance of MPA Costa dos Corais on reef fish biodiversity and conservation and emphasize the urgent need of conservation strategies.

Sign in / Sign up

Export Citation Format

Share Document