scholarly journals Distribution and Composition of Lobster Species Caught in Java Sea of East Java, Indonesia

2019 ◽  
Vol 20 (2) ◽  
pp. 49
Author(s):  
Arief Setyanto ◽  
Nabilla Artini Rachman ◽  
Eko Sulkhani Yulianto

Lobster resources are abundant in Indonesia waters. Lobster’s catch production is known as an important fishery commodity. A lobster fishery is considered important fisheries within the Indonesia fishe ies management zone. So that, its management plan is needed to be developed. As a consequence, preliminary study on lobster distribution by its species proportion or composition in their catches by its fishing ground and fishing season (month) are important to mitigate the resources. The study was conducted in Java Sea of East Java to explore the lobster species distribution and composition. The Java Sea is laid within the Fisheries Management Zone of the Republic of Indonesia number 712. Lobster catch data were collected from 4 regions (landing bases) across East Java. They are Lamongan, Bawean, Tuban and Sumenep. The data was collected from December 2016 - March 2017. These regions are representing over all biogeography of marine ecology of East Java. Statistical test for homogeneity of composition/proportion of species of lobster by its regions or location and time/month were analyzed and tested statistically using one way Analysis of Variance (ANOVA). The results shows that the composition o lobster species in each regions or location in different time/month are different. There were our species o lobster identified. They are Panulirus ornatus, P. homarus, P. polyphagus, and P. Versicolor. P. ornatus found in those four locations. All 4 species are caught in Lamongan. there are no species of P. Homarus have been caught in Bawean. In Tuban there is 3 species of Panulirus ornatus, P. polyphagus, and P. homarus. While in Sumenep there are only two species which are P. ornatus and P. Versicolor. Panulirus polyphagus is dominant in Lamongan, Bawean, and Sumenep while P. homarus is in Tuban. Those four species were caught in the month of December, January, February and March with P. Polyphagus as a dominant catch.

2021 ◽  
Vol 324 ◽  
pp. 01007
Author(s):  
Yulius Yulius ◽  
Vaninda Aidina ◽  
Muhammad Ramdhan ◽  
August Daulat

The fishing ground is identical and closely related to chlorophyll-a abundance in the waters, associated with its fisheries potential. This research has been conducted to determine the concentration and distribution of chlorophyll-a in the seas, especially in the Fisheries Management Area (FMA) 712 encompassing the Java Sea. The analysis used monthly time-series data collected from the satellite imagery over the last 11 years, taken through the ERDDAP website. The mean concentration of chlorophyll-a in the study area was 1.13 mg/l in June 2013. Based on 11 years of data processing, it can be concluded that the highest concentration of chlorophyll-a occurred in the west monsoon season from November to April, where increased rainfall caused the nutrient wash from terrestrial to the open waters. The lowest chlorophyll-a concentration happened in the east monsoon season from April to November, where the dry season arrived. The existence of pelagic fishes in FMA 712, such as Sardinella Lemurs and Sardinella Fimbriata, in waters highly influenced by the chlorophyll-a concentration, while Thunnus Sp. and Exocoetidae Sp. not affected significantly to the existence of chlorophyll-a concentration and its distribution.


2020 ◽  
Vol 21 (8) ◽  
Author(s):  
M. DANIE AL MALIK ◽  
NI PUTU DIAN PERTIWI ◽  
ANDRIANUS SEMBIRING ◽  
NI LUH ASTRIA YUSMALINDA ◽  
ENEX YUNIARTI NINGSIH ◽  
...  

Abstract. Al Malik MD, Pertiwi NPD, Sembiring A, Yusmalinda NLA, Ningsing EY, Astarini IA. 2020. Short Communication: Genetic structure of Longtail Tuna Thunnus tonggol (Bleeker, 1851) in Java Sea, Indonesia. Biodiversitas 21: 3637-3643. Thunnus tonggol (Longtail Tuna) is an economically important fish found in Indonesia waters, however, the information regarding this fish is lacking. Known to be a neritic fish and found in shallow water, Java Sea is one of the ideal habitats for T. tonggol species. Due to high fishing rates activities in Java Sea, a better management plan to ensure the conservation and fisheries sustainability around this area is needed, especially to protect T. tonggol population. In order to complete the Indonesian tuna data, we aim to study the diversity and genetic structure of T. tonggol in Java Sea at three different locations; i.e. Semarang, Banjarmasin, and Jakarta. In this study, population genetic methods with the marker of mitochondrial DNA (mtDNA) control region were used in population structure analysis. A total of 115 specimens were collected from the fish market around the area of study locations and amplified using polymerase chain reaction (PCR) and sequenced using Sanger methods. The result showed genetic diversity (Hd) value of 0.99366, and nucleotide diversity (π) value of 0.01906. Both of these values indicated high genetic diversity. Population analyses using Analysis of Molecular Variance (AMOVA) showed nonsignificant differences between the three populations of study (mixing population), with the ΦST value of 0,00375 (p-value > 0.05). Based on this result, the fisheries management for T. tonggol in Java Sea needs to be managed as one single population management.


2019 ◽  
Vol 5 (3) ◽  
pp. 108
Author(s):  
Erick Budi Setiawan

<p>Indonesia is one of the archipelagic states in the world that has a very important role for international shipping, so there is a need for security controls to maintain the sovereignty of the territorial waters of the Republic of Indonesia by providing 3 shipping lines that can be passed by ships from other countries to be able to cross through the archipelagic sea lane. One of them is ALKI-I which crosses the Natuna Sea, Karimata Strait, Java Sea, and Sunda Strait. One of the joint operations carried out by the TNI to anticipate all forms of violations and threats in ALKI-I is the ALKI-I Security Operation. The main theory used in the discussion of this research is the Interoperability theory, supported by several theories including integration theory, system theory, theory coordination, and security theory. This research uses an explanative qualitative approach using Nvivo Software for processing data obtained from in-depth interviews with operations executors. The results of the analysis conducted using the Miles, Huberman and Saldana models found that the impact caused by the problem was that the operation was not yet effective and efficient.</p><p>Keywords: ALKI-I Security Operation, Interoperability Theory, Miles Huberman and Saldana models analysis, NVivo Software, The Doctrine Of Joint Operations</p>


2018 ◽  
Vol 197 ◽  
pp. 13006
Author(s):  
Frederikus Fios

The fulfillment of renewable energy supported by environmentally friendly technology is important for the Indonesian people especially in the border areas of Indonesia and Timor Leste today. This is a preliminary study that aims to map the possibility of wind energy in the border areas of Indonesia and Timor Leste, especially in North Central Timor District, East Nusa Tenggara Province, Indonesia. The method of research is the qualitative method with participatory observation approach. The results of the study found that the potential of wind energy in Mount Ainiut that can generate electricity of 7 x 3.5 = 24.5 Megawatts can be consumed 20,000 homes and small industries scattered around the West Timor Region. Local people are also open to accept the construction of microgrid electric technology facilities based on wind energy that is environmentally friendly. The findings of potential wind and acceptance of local communities can be important information for the Indonesian government to adopt relevant policies to support development efforts to provide electricity for communities in Indonesia's border regions of Indonesia and Timor Leste where satisfactory electricity needs are not yet met. Collaboration of the private and government sectors, especially the ministries in charge of the mineral resources of the Republic of Indonesia is very important. This has a positive impact on the economic growth of societies in the border areas of Indonesia and Timor Leste.


2020 ◽  
Vol 191 (2) ◽  
pp. 133-137
Author(s):  
Z Curguz ◽  
G Venoso ◽  
Z S Zunic ◽  
D Mirjanic ◽  
M Ampollini ◽  
...  

Abstract The requirements about radon measurements in schools and public buildings included in most of the national and international legislations are generally restricted to all the rooms located at the ground floor and basement, assuming the soil beneath the building as the main source of indoor radon. In order to verify such an assumption for small buildings having at maximum two floors, a preliminary study was performed in 50 schools located in 15 municipalities of the Republic of Srpska. Results of this study suggest that a protocol requiring measurements at the ground floor only may be considered adequate. Due to the high radon spatial variability for rooms at the ground floor, it is preferable to require measurements in a high number of rooms (preferably in all of them) in order to assess the compliance with the reference level established by the legislation.


2017 ◽  
Vol 864 ◽  
pp. 351-356
Author(s):  
Tae Hyoung Kim ◽  
Chang U Chae ◽  
Yu Jin Kim ◽  
Su Hyun Jo ◽  
Sang Hee Kim

The purpose of this study is to construct of database for greenhouse gas (GHG) emission reduction technologies through the analysis of domestic and foreign green building certifications, as part of inventory study of greenhouse gas reduction technologies. For this purpose, analyzing G-SEED, LEED, BREEAM, CASBEE cert3ifications, derived the three categories associated with GHG reduction technologies and investigated the technologies related to standards of the three categories. As a result, commercially available GHG reduction domestic technologies database was constructed based on GHG reduction technology groups. After analyzing domestic and international environment-friendly building certifications (G-SEED, LEED, BREEAM, CASBEE), three categories (ecological environment, materials & resources, energy) associated with GHG reduction technology were derived. The certification standards by category and GHG reduction technologies were analyzed, and GHG reduction technology group was classified. Based on the list of the classified GHG reduction technologies, GHG reduction technologies commercialized in the Republic of Korea were kept as database.


2015 ◽  
Vol 21 (1) ◽  
pp. 53
Author(s):  
Duto Nugroho ◽  
Ria Faizah ◽  
Andhika P. Prasetyo ◽  
M. Badrudin

North Kalimantan Province, notably Tarakan City marine waters, is one of the important fishing ground in boundary area among Sulu Sulawesi Marine Ecoregion. It produces approximately 100 mt/annum of Bombay duck (<em>Harpadon nehereus</em>) with valued of US$ 750,000. The sustainability of this fishery is a crucially concern given the following: substantial economic contribution, significant dependence of small-scale fishers on this species for their livelihoods. The fishing intensities considerable and growing threats to their habitats. To evaluate the vulnerability of individual species to over exploitation, the spawning potential ratio (SPR) approach applied to describe the status of its existing fisheries. This approach provides the ability to determine fishing mortality as reference points to enhance its sustainability. The objective of this study is to understand this fish biomass resilience to harvesting. The calculated SPR based on the value of estimated length of first capture or Lc at 208 mm is equivalent to the SPR of 28%. With a base line of stocks are generally thought to risk recruitment declining when SPR &lt;20%, recent finding indicated that the existing fishery can be generally described as nearly fully exploited. In recognition of this sector’s has an ecological importance and socio-economic significance, the sustainable development of Bombay duck fisheries should be initiated through developing local fishery committee to provide a their local fishery management plan.


2019 ◽  
pp. 9-26
Author(s):  
Sławomir Zwolak

The considerations of the article focus on the planning power exercised by a municipality as a unilateral and authoritative determination of the purpose of the land and its development. The municipality in the capacity of a planning au­thority cannot assume an absolute and unlimited power and must act within the limits determined by applicable and binding laws. Hence, in the implementation of its land development tasks, the municipality (or local authorities) are bound by the provisions of the Constitution of the Republic of Poland and other relevant laws that govern the planning authority granted to municipalities. Exceeding the limits of this planning power will occur when planning solutions prove to be arbitrary and lack substantive justification. Defective legal solutions include not only solutions that violate the law, but also those that result from a potential abuse of the competence of the municipality. Determining the land purpose and the manner of its management must reflect a reasonable and real need for the solution adopted. When the latter is detached from the legal and factual status of the land in question, a violation of planning power arises. When a municipality adopts a local plan which introduces certain restrictions in the use of the property right that is protected in the Constitution, it is obliged to apply legal measures that will be the least onerous for individual entities and which will remain in a rational proportion to the intended purposes. However, certain situations that will lead to the conflict of interests are unavoidable. Settling these conflicts in the process of law-making requires, each time, the weighing off the interests of individual property owners and the public interest of the whole local community. Individual owners may sue the municipal planning authority on the grounds of the abuse of its planning power when adopting a local land management plan and such legal actions may be effective.


2018 ◽  
Vol 5 (2) ◽  
pp. 46-50
Author(s):  
Catur Wulan ◽  
Wulan Ayu Fitria

Consumption of iron tablet 1 tablet per day during pregnancy can cause constipation. Based on the results of preliminary study in the Bandar Village, Pacitan through interviews with 14 pregnant women there were 12 pregnant women who consumed iron tablet regularly and 8 pregnant women complain of difficulty to defecate while not experiencing constipation 4 pregnant women. From two pregnant women who did not consume fe tablets they didn’t get constipation. The purpose of this study was to determine the relationship consuming Fe tablet with constipation in pregnant women. This type of research is quantitative with cross sectional design conducted in March 2016. The population of all pregnant women in Bandar Village Bandar Subdistrict District of Pacitan as many as 33 pregnant women. The respondents ware all pregnant women in the Bandar Village Bandar district Pacitan. Using total sampling technique, the research was conducted on March 1 until March 30, 2016. The variable in this study is the fe tablet intake and incidence of constipation. The research instrument used was observation about fe tablet consumption and interviewing about incidence of constipation. The data were tabulated and analyzed using a statistical test Chi Square test determined significant with p> 0.05. From the results showed that majority of 19 pregnant women (57.5%) consume iron tablet regularly, and majority of 18 pregnant women (54.5%) got constipation. There was a relationship consuming Fe tablet constipation with in pregnant women in the Bandar Village district ofPacitan. Evidenced by the significant level of 0.000> 0.05 so that Ho refused. Based on the results of the study, the researcher suggested to health workers to provide counseling to pregnant women about how to consume tablets fe correetly and balanced with foods contaiming high in fiber.


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