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Journal : Berkala Perikanan Terubuk

Analysis of Alien Species Invasion in Marine Debris in Palu Bay, Central Sulawesi Roni Hermawan; Anita Treisya Aristawati; Eka Aji Pramita; Mubin Mubin; Rahmi Fitrawati; Finarti Finarti; Mohamad Akbar; Renol Renol; Alismi M Salanggon; Radhiyatul Ula
Berkala Perikanan Terubuk Vol 50, No 2 (2022): Juli 2022
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.50.2.1495 – 1501

Abstract

Marine debris provides habitat for several species. These species attach and carried (rafting) marine debris in all directions following the ocean currents. When stranded, these alien species will quickly develop because they have high survival and adaptation capabilities, these alien species will cause economic, ecological and social impacts. This research begins with a survey of the presence of marine debris that attached by alien species on coast of Palu Bay, then observations on the marine debris such as: size, weight, observations on alien species such as: type, size, colony size, ability to spread and survive, impact category based on literature. The aim of this study was to identify the types of alien species carried by marine debris in Palu Bay.  Calculating the amount of alien species carried by marine debris in Palu Bay. Based on the analysis, there are 3 alien species on the coast of Palu Bay. Lepas sp were 247 individuals, then Isognomon sp with 124 individuals and Saccostrea cuccullata d for 36 individuals. The species were found on wood, iron, coconut, PVC pipes, bamboo, nets and boat ropes as substrates.
Monitoring Coral Reefs using the Transect Intercept Line Method in Coastal Mamboro, Taipa, Kayu malue and mamboro Villages After the 2 Year Tsunami of Palu City, Central Sulawesi Province. Mohamad Akbar; Mohamad Musbah; Muliadin Muliadin; Alismi M Salanggon; Deddy Wahyudi; Renol Renol; Roni Hermawan
Berkala Perikanan Terubuk Vol 50, No 2 (2022): Juli 2022
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.50.2.1502 – 1508

Abstract

Coral reefs are very important ecosystems and have a direct economic impact on coastal communities. In addition, coral reef ecosystems also play a role in providing habitat for various kinds of marine organisms such as Echinoderms, Crustaceans, Polychaeta, Chordata, Molluscs, Annelids and free-living marine biota such as plankton and fish. Over-exploitation of coral reefs and their resources, changes in top land that cause sedimentation and other anthropogenic activities will cause damage to coral reefs. Increasing pressure can threaten the existence and sustainability of coral reef ecosystems and the biota that live in them. In 2018 there was an earthquake 7.4 Richter scale accompanied by tsunami, the impact was large of destruction of the aquatic biota habitat of coral reef ecosystem. The aims of this study were (1) to examine the condition of coral reefs in Palu Bay, (2) to examine the composition of coral reefs in Palu Bay. Coral reef data was collected using the Line Intercept Transect (LIT) method. For coral reef observations using a transect with a length of 25 m, with  every 50 cm observations or 50 points/transect. Each location were carried out 2 times. The results obtained shown the growth conditions of live coral were poor, but coral growth has started to improve. For water quality, it shown that the water quality in Palu Bay was suitable for coral reefs growth.