scholarly journals STATUS PERIKANAN BELIDA (CHITALA LOPIS) DI PROPINSI RIAU DAN STRATEGI PENGELOLAANNYA SECARA BERKELANJUTAN

2020 ◽  
Vol 12 (2) ◽  
pp. 87
Author(s):  
Estu Nugroho ◽  
Raden Roro Sri Pudji Sinarni Dewi ◽  
Aisyah Aisyah ◽  
Bambang Priono

Berbagai ancaman terhadap populasi belida di alam, seperti rendahnya nilai indikator ketersediaan induk di alam (15%), tingkat pemanfaatan yang tinggi, dan beberapa aturan perlindungan sebagai bukti adanya kekhawatiran kepunahan belida, menunjukkan perlunya upaya pelestarian tertentu menuju pengelolaan belida yang berkelanjutan. Kajian bertujuan untuk memformulasikan upaya menjaga keberlanjutan populasi belida di alam dan mendukung upaya peningkatan produksi, dengan melihat kondisi terkini perikanan belida baik dari aktifitas penangkapan maupun budidaya. Analisis sederhana dilakukan terhadap produksi dan hasil tangkapan belida di wilayah Propinsi Riau serta perkembangan kegiatan budidaya. Hasil menunjukan bahwa terdapat beberapa hal positif yang mendukung pemanfaatan belida sebagai komoditi budidaya. Dari sisi penangkapan, kontribusi belida terhadap total produksi perikanan perairan darat baik secara lokal (Riau) maupun nasional adalah relatif kecil, namun sampai dengan saat ini kebutuhan pasar dan industri lokal Riau hingga luar Riau masih bisa dipenuhi. Di samping itu, terdapat mekanisme pasar yang memberlakukan harga tinggi pada ukuran besar serta keberadaan lubuk larangan sebagai daerah yang dilindungi. Hal positif lainnya adalah latar belakang genetik yang memungkinkan pemanfaatan benih dan indukan dari lokasi Kampar dan Palembang untuk keperluan pemulihan di alam. Serta telah dikuasainya teknologi pemijahan belida dalam lingkungan terkontrol di luar habitat alaminya. Di sisi lain masih terdapat kondisi yang tidak mendukung keberlanjutan sumber daya ikan belida antara lain kondisi alami habitatnya yang sudah mengalami degradasi. Degradasi yang lebih nyata terlihat diduga lebih cepat berdampak jika dibandingkan dengan upaya pemulihannya. Budidaya diyakini mampu menjembatani percepatan pemulihan tersebut guna meningkatkan produksi ikan belida dalam hal ini.Various threats occurred to clown knifefish (belida) populations in wild nature, such as the low value of indicators for the availability of broodstock in nature (15%), high utilization rates, and several protection regulations as evidence of clown knifefish extinction concerns, indicate the need for certain conservation efforts towards sustainable clown knifefish management. The study aims to formulate efforts to maintain the sustainability of clown knifefish populations to population also the needs in increasing production, by looking at the current conditions of clown knifefish fisheries both from fishing and aquaculture activities. A simple analysis was carried out on the production and catch of clown knifefish in Riau Province as well as aquaculture. The results show that there are several positive things that support the use of clown knifefish as an aquaculture commodity. In terms of fishing, the contribution of clown knifefish to total inland fishery production both locally (Riau) and nationally is small relatively, however until now the market and industrial needs of local Riau to outside Riau can still be met. In addition, there is a market mechanism that imposes a high price on large sizes as well as the existence of ‘lubuk larangan’ as a protected area. Other positive is the genetic background that allows the use of seeds and broodstock from Kampar and Palembang locations for recovery purposes in nature. Also technological developments of spawning in a controlled environment outside their natural habitat. On the other hand, there is unsupported condition to the sustainability of clown knifefish resources, including the degradation of habitat. The more obvious degradation is seen having a faster impact than the recovery effort. Aquaculture is believed to be able to bridge the acceleration of the recovery in order to increase the production of clown knifefish in this case.

2021 ◽  
Vol 7 (2) ◽  
pp. 163
Author(s):  
Ali Mujahidin ◽  
Rika Pristian Fitri Astuti ◽  
Ifa Khoiria Ningrum

This study is a literature review with the normative approach. To achieve the desired objectives, the authors collected data consisting of primary and secondary data. The data obtained through the previous discussion of some theses, books, websites, supported by guidelines of the Qur�an and Al-Hadith. In gathering the data, the researcher uses the method of a documentary, and with the way the method of indirect observation, by visiting the library in search of data. The result of this research that Ibn Taimiyyah had two views in pricing, the first is valid pricing, second is invalid pricing. And valid pricing can be done by the government to stabilize the economic condition which is called intervention. The goal of intervention is to ensure social justice and prosperity of society. Intervention mechanisms are divided into two, namely direct and indirect. Direct intervention in the form of Al-Hisbah, the character of the institution as a corporate planner, set the market mechanism that is not fair. Besides, in the particular circumstances that required the intervention price, for example when there was war and famine, so all the high-priced goods, or when there was speculation in the market, which requires the seller to sell goods, or when there was speculation in the market, which requires the seller to sell goods with high price levels. While the indirect intervention was implemented in the educational problems and the fulfillment of public facilities such as transport and communication.


Author(s):  
Salmiah ◽  
Charloq ◽  
Thomson Sebayang

Grouper is one of the non-oil and gas export commodities that has the potential to be developed. As fish, fish consumption is much needed for restaurants and luxury hotels. The weight range of 500 - 100 grams / head, especially in living conditions, has a high price compared to in the form of dead fish.In 1999, research and development for multi-species harchery carried out jointly by the Gondol Marine Aquaculture Research Center with JICA first successfully produced mass of duck grouper seeds, cromileptes altivelis and tiger grouper seeds (Kawahara, et. Al ., 2000; Sugama et.al., 2001). Whereas to mass produce sunu grouper seeds in 2005. Technology development has been disseminated to government and private hatcheries, so that the production of duck grouper seeds has increased dramatically and more than 1 million seeds in 2001 (Kawahara and Ismi, 2003). This technology is also applied to the production of tiger grouper seeds, Ephinephelus fuscoguttatus by private hatcheries. In 2002, tiger grouper seed production was more than 2.6 million. For sunu groupers up to now, more than 0.5 million in 2006.Belawan Sicanang Village Medan Belawan District Medan City is an island surrounded by several tributaries which empties into the Deli River. 40% of the population are fishermen who are looking for shrimp or fish in the river and land pond farmers. Grouper is one of the fish that lives naturally in the waters of Belawan Sicanang Village which has high economic value. But environmental damage such as logging of mangroves due to the low alternatives of community livelihoods, changes in the function of land, continuous capture of the land causes the grouper population to continue to decline.The use of the river for floating cages in grouper aquaculture can reduce the reduced supply of groupers from the natural habitat of fishermen's catches produced by this region. Cheaper cost analysis compared to terrestrial aquaculture can improve the welfare of fishermen and support culinary commodities in the development of Mango Sicanang ecotourism which is being promoted by the community and the local government.


2016 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
Ilamsyah Ilamsyah ◽  
Dona Listyanto Pangestu ◽  
Reza Zulian Pramana

T.CHUGOKU PAINTS INDONESIA is a private company engaged in the manufacture of paints for industrial needs with the quality and formulation of Japan. A company that produces various types of paint for the plant. Ranging from the manufacture of special paint ships, power plants, steel and wood to meet customer needs in the field of industri.di where this company. Still barcode creation process is still manual and not integrated with a web so that it can facilitate the manufacture and control in the manufacture of barcode goods. Technological developments in the computer system enables improvement in all branches of production, such as the manufacture of goods still manual barcode, barcode creation process is slow and depends on the conditions. Due to the manufacture of barcode system that has been using the web will bring an ease to the company to be able to indulge easily. The use of computer systems is very important in supporting a company's development in today. Computer use can also facilitate and expedite the processing, storing important data even as the company's own material. The methodology used is a method ofresearch that began by conducting surveys, interviews, and analysis according to the theory of the books that can support the design manufacture goods barcode. From these results, PT. CHUGOKU PAINTS INDONESIA can improve produtivitas and performance of the company to be competitive in the business world that is increasingly tight. In addition, with this research the company has a better ability to present and future.


Crustaceana ◽  
2013 ◽  
Vol 86 (12) ◽  
pp. 1441-1451 ◽  
Author(s):  
Maria C. Morales ◽  
Jaime Meruane

The present study is a review of the main inland water malacostracan species of northern Chile: Cryphiops caementarius (Molina, 1782). This species sustains the local fisheries in northern and central Chilean hydrographical basins. Cryphiops caementarius, in Chile known as the northern river shrimp, is endemic to rivers west of the Andes Mountains in Peru, and south from Chancay-Lambayeque River and the rivers in the northern Chilean littoral up to 32°55′S. Research on this species in its natural habitat consigned between 1958 to 2008 was directed to population knowledge, including mainly the existing populations in rivers in the Regions of Atacama and Coquimbo. Important advances were also made with regards to the study of the embryonic development, biology, life cycle and reproduction that serve as a basis for the technological development of juvenile production in a controlled environment.


Author(s):  
E. R. Macagno ◽  
C. Levinthal

The optic ganglion of Daphnia Magna, a small crustacean that reproduces parthenogenetically contains about three hundred neurons: 110 neurons in the Lamina or anterior region and about 190 neurons in the Medulla or posterior region. The ganglion lies in the midplane of the organism and shows a high degree of left-right symmetry in its structures. The Lamina neurons form the first projection of the visual output from 176 retinula cells in the compound eye. In order to answer questions about structural invariance under constant genetic background, we have begun to reconstruct in detail the morphology and synaptic connectivity of various neurons in this ganglion from electron micrographs of serial sections (1). The ganglion is sectioned in a dorso-ventra1 direction so as to minimize the cross-sectional area photographed in each section. This area is about 60 μm x 120 μm, and hence most of the ganglion fit in a single 70 mm micrograph at the lowest magnification (685x) available on our Zeiss EM9-S.


Author(s):  
L. P. Hardie ◽  
D. L. Balkwill ◽  
S. E. Stevens

Agmenellum quadruplicatum is a unicellular, non-nitrogen-fixing, marine cyanobacterium (blue-green alga). The ultrastructure of this organism, when grown in the laboratory with all necessary nutrients, has been characterized thoroughly. In contrast, little is known of its ultrastructure in the specific nutrient-limiting conditions typical of its natural habitat. Iron is one of the nutrients likely to limit this organism in such natural environments. It is also of great importance metabolically, being required for both photosynthesis and assimilation of nitrate. The purpose of this study was to assess the effects (if any) of iron limitation on the ultrastructure of A. quadruplicatum. It was part of a broader endeavor to elucidate the ultrastructure of cyanobacteria in natural systemsActively growing cells were placed in a growth medium containing 1% of its usual iron. The cultures were then sampled periodically for 10 days and prepared for thin sectioning TEM to assess the effects of iron limitation.


2019 ◽  
Vol 3 (6) ◽  
pp. 707-711 ◽  
Author(s):  
Andrew Peterson ◽  
Adrian M. Owen

In recent years, rapid technological developments in the field of neuroimaging have provided several new methods for revealing thoughts, actions and intentions based solely on the pattern of activity that is observed in the brain. In specialized centres, these methods are now being employed routinely to assess residual cognition, detect consciousness and even communicate with some behaviorally non-responsive patients who clinically appear to be comatose or in a vegetative state. In this article, we consider some of the ethical issues raised by these developments and the profound implications they have for clinical care, diagnosis, prognosis and medical-legal decision-making after severe brain injury.


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