Coral reef condition at north coastal of Haruku Island Maluku Tengah

Abstract This research was conducted in the waters on the north coastal of Haruku Island, in 2018, to analyze the condition of coral reefs in the area. The application of the manta-tow method was used as an initial survey of coral reef ecosystems at three research stations (Pelau, Waimital, and Hulaliu), and then the Point Intercept Transect (PIT) method approach was used to analyze the life form of benthic growth at each location at a depth of 3 and 10 meters. Analysis of the percentage of existing life forms was performed to determine the level of damage to coral reefs. The results showed that the percentage of hard coral cover at a depth of 3 meters for the three locations of Pelau, Waimital, and Hulaliu was 16.33%, 14.67%, and 65.3%, respectively. Meanwhile, the depth of 10 meters is 40.67%, 35%, and 66.67%. The condition of coral reefs at Pelau and Waimital stations at a depth of 3 meters is classified as poor, and at a depth of 10 meters is classified as moderate. Meanwhile, at Hulaliu Station, the condition of coral reefs at both depths was classified as good.</jats:p

Distribusi Spesies Teripang Berdasarkan Tipe Substrat pada Ekosistem Padang Lamun di Perairan Negeri Suli

Penelitian ini bertujuan untuk mengetahui penyebaran teripang berdasarkan karakteristik substrat yang ada di perairan intertidal Suli. Penelitian ini dilakukan di perairan Suli pada bulan November 2017. Data substrat yang diperoleh dianalisa dan diklasifikasikan berdasarkan Skala Shepards. Sedangkan data teripang diperoleh dari penelitian sebelumnya, dimana sampel teripang yang diperoleh kemudian dianalisa pada laboratorium untuk mengidentifikasi spesies yang ditemukan, berdasarkan analisa bentuk spikula secara mikroskopis. Data dipadukan untuk digunakan dalam membuat peta distribusi teripang berdasarkan karakter substrat yang ada. Data dianalisa secara deskriptif. Teridentifikasi 14 spesies teripang pada ekosistem padang lamun perairan Suli yang tersebar pada berbagai jenis substrat. Tipe substrat pada lokasi penelitian didominasi oleh susbtrat berpasir, dengan variasi substrat antara lain: pasir bercampur pasir sedang, pasir bercampur pasir kasar, pasir kasar bercampur pasir, kerikil bercampur pasir halus, dan karang/patahan karang. Dari beberapa variasi ini, tipe substrat yang paling mendominasi adalah pasir kasar bercampur pasir. Hasil penelitian menunjukkan bahwa ada penyebaran beberapa jenis teripang pada substrat tertentu, namun sebagian besar jenis teripang terdistribusi secara merata pada setiap jenis substrat. Jenis teripang Holothuria scabra, H. atra, dan Opheodosoma grisea ditemukan pada hampir semua tipe substrat. Kata Kunci: teripang, substrat, distribusi, ekosistem lamun, Sul

Habitat characteristcs and density of spotted seahorse Hippocampus kuda at waters of Ternate Island and surroundings, Maluku Utara, Indonesia

Abstract Seahorses are acknowledged as commodity due to the ornamental and the medical functions. The data of seahorses, particularly in Maluku Utara, has been undetermined yet. The study explores the habitat characteristcs and density of spotted seahorses Hippocampus kuda at waters of Ternate Island and surroundings. The study was held on January and December 2017 that located at waters of Ternate Island and surroundings. Purposive sampling method was implemented to determine the site of stations. The data were collected by applying the method of sampling quadrate (size of 10m x 10m). The characteristics of habitat of seahorse and the density of seahorse were described. The result illuminated that the seahorses were merely discovered at Station 1 and 2 (at south of Ternate Island). The highest density was found on April for the juveniles (3.3 ind/100 m2), as the broodstocks were on October (2.8 ind/100 m2). The presence of juveniles was noted high at Station 1 (75.81%) and none was found at Station 2. The broodstocks’ occurence was extremely high at Station 2 (male 46.77% and female 53.33%), whereas they were presented 24.20% at the Station 1 (male 14.52% and female 9.68%). The water quality at the site the seahorses were occured were temperature 29.1-29.2°C, transparency 1.5-1.7 m, salinity 25.3-25.5 ppt, pH 7.7-7.8, and DO 5.0-5.3 mg/l. The values were lower than the water quality at the site the seahorses were not found.</jats:p

Density and abundance of sea cucumber at seagrass ecosystem in Paperu Waters, Saparua Bay, Maluku

Abstract Sea cucumbers, Holothurians, are high economic value resources according to their utilization for food and medicine. Due to the roles affect the increasing of sea cucumber exploitation in natural, the sea cucumbers are consequently categorized as endangered species. People in Saparua Island have been utilized the resources for years, including people in Paperu. Hence, the research was carried out to analyze the density and abundance of sea cucumber species at the seagrass ecosystem on Paperu Waters Saparua Bay. The research was conducted in October 2017 by using the linear transect method which consisted of three stations and 9 transects. The results showed that no less than eight species were found on the site, which were classified into one order, two families, and three genera. The eight species are approximately found in various densities and abundance, i.e. Bohadschia bivittata, B. marmorata, B. vitiensis, Holothuria atra, H. edulis, H. leucospilota, H. scabra, and Stichopus horrens. The highest density and abundance was found at species Bohadschia vitiensis and B. bivittata, respectively 0,16 ind.m−2 and 5.336 ind, while the lowest density and abundance were found at species H. leucospilota (0,04 ind.m−2 and 1.334 ind).</jats:p

Perencanaan Strategis SI/TI Menggunakan Metode Ward And Peppard di Institusi Pendidikan (Studi Kasus: SMK Bina Nusantara Ungaran)

Business competition in this Fast-paced information age has become very tight. especially in the field of education. Thus the organization must have a business strategy that is very mature in order to face the competition. The application of information systems and technology has become one of the most influential business strategies for staying in competition. Bina Nusantara Vocational School has implemented an information system and technology, but apparently it has not run optimally because some parts have not yet implemented an information system. In this study discusses how to plan an IS / IT strategy using ward and peppard methods with supporting analyzes such as Value Chain Porter's, SWOT, and McFarlan's Strategic Grid. Which produces a portfolio of IS / IT that is aligned with the vision and mission and roadmaps of its implementation to support the business processes that are run and make the Bina Nusantara Vocational School excel in education

Mineral contents in flesh of abalone Haliotis squamata fed with different live feeds

Abstract Mineral contents in flesh of abalone Haliotis squamata were analyzed by using Atomic Absorption Spectrophotometer method. Samples of abalone Haliotis squamata used in this research were treated by three types of live feed, i.e. Gracillaria sp., Ulva sp., and mix of Gracillaria sp. and Ulva sp. Flesh of abalone H. squamata contained of some mineral i.e. K, Ca, Mn, Zn, Fe, Cu, Hg, and Mg. In the flesh of abalone H. squamata fed with those feeds, K had the highest value followed by Mg while the lowest was Cu. In food, Ulva sp contain the highest K followed by Ca with the lowest was Cu. In contrast, Ca had the highest value in Gracillaria sp followed by Mg while the lowest was Cu.</jats:p

Plastic pollution on the beaches of outer Ambon Bay

Abstract Plastic pollution in the marine environment is a global problem, which is currently in particular concern because this pollutant can be a negative impact on ecosystems. Identification of group plastic can be a solution to plastic debris management strategy throughout Outer Ambon Bay (OAB). The purpose of this study was to determine and analyze the composition and percentage of plastic debris in OAB and analyze the density of plastic debris in OAB according to the plastic group. The research findings from 20 sampling sites showed that the plastic debris category found was mostly plastic packaging, 86% on the coast of the Jasirah Leitimur and 78% on the Jasirah Leihitu. The highest density of plastic waste was found at Tantui and Mardika shores located in Jasirah Leitimur. The sampling site in Jasirah Leihitu shows that Rumahtiga and Liliboy have the highest density of plastic. Overall, the dominant group of plastic found on the shores of Outer Ambon Bay is plastic packaging.</jats:p

Valuasi Ekonomi Sumberdaya Perikanan Tangkap di Perairan Negeri Waai Kecamatan Salahutu Maluku

The potency of capture fishery resources at Waters of Waai allows the fishermen to utilize it in order to support the community economy. However, if it is not carried out following the principles of sustainable fisheries, it can cause problems such as overfishing, overcapacity and resource degradation. The study aims to estimate the economic value of capture fishery resources at Waters of Waai as one of the basic to determine the sustainable fisheries management. Primary data collection was carried out on 7 purse seine business owners and analyzed using the effect on production (EOP) approach. The result found that the demand functions of capture fishery resources at Waters of Waai were influenced by price (X1), income (X2), age (X3), business experience (X4) and number of dependants (X5). Amount of consumer surplus is Rp 642.113.972 per fisherman per year and the economic value of capture fishery resources at Waters of Waai is Rp 55.256.403 per hectare per year