The influence of fishing tools using different feed towards variation of Loligo sp. catches in the Takalar Sea of South Sulawesi, Indonesia

Fishery is one of the human activities to utilize aquatic resources in fresh, brackish and marine waters. This effort is made to meet the needs of human life for the availability of animal protein for growth and as a source of meeting other economic needs. Fishery business consists of components that are interrelated with one another, namely capture fisheries and aquaculture and supported by marketing and processing of fishery products. One of the fishing gear used by fishermen around the coast is a hand line. The purpose of this study was to find out which light are effective in the operation of hand line fishing gear in Takalar waters. The data collection technique was done by using the trial method (Expermental fishing), by conduction trials using two different lamps, namely LED lights (light emitting diode) and petromax lamps. This research was conducted in Takalar Waters in July-August 2020. The results showed that the size structure of the squid and cuttlefish caught on the LED lights ranged from 6- 27.5 cm, totaling 310 tail, weighing 41.15 kg (69.51%), whilw the size structure of the squid caught in the petromax lamp ranges 9,5-27,6 cm totaling 136 tail, weighing 17.91 kg (30.49%), significantly different from the result of t-student.

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Pengaruh warna lampu light emitting diode dalam air terhadap hasil tangkapan ikan Teri (Stolephorus commersonii) dengan bagan

JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP ◽

10.35800/jitpt.4.2.2019.24225 ◽

2019 ◽

Vol 4 (2) ◽

pp. 45

Author(s):

Christianti Triagneriauly Amos ◽

Revols Dolfi Chistian Pamikiran ◽

Patrice Nelson Isaak Kalangi ◽

Henry James Kumajas

Keyword(s):

Light Emitting Diode ◽

Block Design ◽

Green Water ◽

Fishing Gear ◽

Light Emitting ◽

Led Light ◽

Randomized Block Design ◽

Significant Difference ◽

Different Color ◽

Led Lights

Lift nets is one of the fishing gear which operate at the night. This fishing gear are using light as a aids to attract fish into the fishing area. Research on the use of LED lights in water on lift nets is carried out in Tateli Weru Waters, with the aim to see how the effect of using different color underwater LED lights on anchovy catches (Stolephorus commersonii), and knowing the amount of anchovy (Stolephorus commersonii) catch on lift net using the experimental method, where data is analyzed using Completely Randomized Block Design (RCBD), and continued by Least Significant Difference test (LSD). Trial of anchovy fishing (Stolephorus commersonii) was conducted in December 2018 for 10 days by operating boat lift nets using green, blue and green-blue LED lights. The results showed that the use of LED light colors in blue water had a very significant effect on the amount of anchovy catch (Stolephorus comersonii) compared to to the color of LED lights in green-blue and green water. Whereas the use of LED light colors in blue-green water with green is not statistically significantly different from the amount of anchovy caught (Stolephorus comersonii).ABSTRAKBagan merupakan salah satu alat penangkapan ikan yang dioperasikan pada malam hari. Alat tangkap ini menggunakan cahaya lampu sebagai alat bantu untuk menarik ikan masuk ke dalam area penangkapan. Penelitian mengenai penggunaan lampu LED dalam air pada bagan dilakukan di Perairan Tateli Weru, dengan tujuan untuk melihat bagaimana pengaruh penggunaan lampu LED bawah air dengan warna yang berbeda terhadap hasil tangkapan ikan teri (Stolephorus commersonii), serta mengetahui jumlah hasil tangkapan ikan teri (Stolephorus commersonii) pada bagan dengan menggunakan metode eksperimental, dimana data dianalisis dengan menggunakan Rancangan Acak Kelompok (RAK) dan dilanjutkan dengan uji Beda Nyata Terkecil (BNT). Uji coba penangkapan ikan teri (Stolephorus commersonii) dilakukan pada bulan Desember 2018 selama 10 hari dengan mengoperasikan bagan apung menggunakan lampu LED hijau, biru dan hijau-biru. Hasil penelitian menunjukkan bahwa penggunaan warna lampu LED dalam air biru memberikan pengaruh yang sangat nyata terhadap jumlah hasil tangkapan ikan teri (Stolephorus comersonii) dibandingkan warna lampu LED dalam air hijau-biru dan hijau. Sedangkan antara penggunaan warna lampu LED dalam air hijau-biru dengan hijau secara statistik tidak berbeda nyata terhadap jumlah hasil tangkapan ikan teri (Stolephorus comersonii).

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PERBEDAAN HASIL TANGKAPAN BAGAN APUNG YANG MENGGUNAKAN LAMPU MERKURI DENGAN LAMPU LED

Jurnal Penelitian Perikanan Indonesia ◽

10.15578/jppi.21.2.2015.123-130 ◽

2015 ◽

Vol 21 (2) ◽

pp. 123

Author(s):

Muhammad Sulaiman ◽

Mulyono S Baskoro ◽

Am Azbaz Taurusman ◽

Sugeng Hari Wisudo ◽

Roza Yusfiandayani

Keyword(s):

Fish Species ◽

Light Emitting Diode ◽

Electrical Energy ◽

Low Energy ◽

Heat Radiation ◽

Fishing Gear ◽

Mercury Lamp ◽

Light Emitting ◽

Led Lights ◽

Better Than

Teknik penangkapan ikan dengan alat tangkap bagan di Indonesia khususnya di Kabupaten Barru umumnya masih menggunakan lampu merkuri yang mana membutuhkan energi listrik yang cukup besar. Salah satu alternatif untuk mengurangi penggunaan energi listrik yang besar ini dapat digunakan jenis lampu hemat energi seperti lampu Light Emitting Diode (LED). Tujuan dari penelitian ini adalah untuk mengetahui perbedaan jenis ikan yang dominan tertangkap, komposisi jenis, dan berat ikan tertangkap antara bagan yang menggunakan lampu merkuri dengan lampu LED. Penelitian dilakukan di perairan Kabupaten Barru-Selat Makassar, Sulawesi Selatan. Lokasi pengamatan terletak pada posisi 4°22’48,7"-4°33’47,8"LS sampai dengan 119°25’05,0"-119°33’42,7"BT. Pengamatan lapang/uji coba penangkapan dilakukan pada periode Oktober-Nopember 2012 dan April-Mei 2013 (sebanyak 50 Trip penangkapan). Hasil penelitian menunjukkan bahwa komposisi hasil tangkapan bagan yang menggunakan lampu merkuri dan lampu LED didominasi oleh ikan teri hitam, teri putih, kembung lelaki, tembang, cumi-cumi, dan peperek, masing-masing sebanyak 90% dan 83%. Dengan komposisi jenis hasil tangkapan yang demikian ini menunjukkan bahwa lampu LED dapat digunakan sebagai alat bantu penangkapan ikan karena mampu memikat jenis ikan target dan cenderung hasil tangkapannya sama dengan menggunakan lampu merkuri yang digunakan nelayan bagan. Terdapat perbedaan berat hasil tangkapan bagan yang menggunakan lampu merkuri dari pada yang menggunakan lampu LED, namun dari nilai hasil tangkapan tampak tidak berbeda. Berat jenis hasil tangkapan yang dominan tertangkap dengan lampu LED sebanyak17,49 kg/watt sedangkan lampu merkuri sebanyak 4,89 kg/watt. Hasil ini menunjukkan bahwa bagan dengan lampu LED mendapatkan tangkapan lebih banyak dibandingkan dengan bagan lampu merkuri. Fishing techniques with lift-net fishing gear in Indonesia especially in Barru Regency still usemercury lamp which require considerable electrical energy. Lamps that require low energy is an alternative that can be used to reduce the use of electrical energy. Lamps that require low energy, longevity, low heat radiation, and is resistant to shocks is a Light Emitting Diode (LED). The purpose of this research was to determine differences in the dominant fish species caught, species composition, and weight of fish caught between the lif net fishing gear that uses a mercury lamp with LED lamp. The research was conducted in Barru waters regency, Makassar Strait, South Sulawesi on October-November 2012 and April-May 2013 (50 trips). Observation sites located on 4° 22' 48,7"- 4° 33' 47,8" LS up to 119° 25' 05,0"-119° 33' 42,7" BT. The composition of the catch between mercury lamps and LED lamps was dominated by black anchovy, white anchovy, indian mackerel, sardines, squid and golden ponyfish, respectively 90% and 83%. These results indicate that the LED lights can be used as fishing tools because it is able to attract the target fish species and tend to catch higher than mercury lamps that commonly used. The difference in weight of the catch by using a mercury lamp was statistically better than the LED lights, but the value of the catch of the two types of lamps are not statistically different. Catches based upon the weight per electrical power used to indicate that the LED lights (17.49 kg / watt) is better than themercury lamp (4.89 kg / watt).

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LED Lights Affecting Morphogenesis and Isosteroidal Alkaloid Contents in Fritillaria cirrhosa D. Don—An Important Chinese Medicinal Herb

Plants ◽

10.3390/plants9101351 ◽

2020 ◽

Vol 9 (10) ◽

pp. 1351

Author(s):

Chia-Chen Chen ◽

Maw-Rong Lee ◽

Chi-Rei Wu ◽

Hsin-Ju Ke ◽

Hui-Min Xie ◽

...

Keyword(s):

Morphological Changes ◽

Light Emitting Diode ◽

Basal Medium ◽

Gelling Agent ◽

Embryogenic Calli ◽

Chinese Medicinal Herb ◽

Light Emitting ◽

Light Spectra ◽

Led Lights ◽

Fritillaria Cirrhosa

Investigations were carried out to study the effects of light-emitting diode (LED) lights on growth and development of isosteroidal alkaloids in embryogenic calli of Fritillaria cirrhosa D. Don, an important traditional Chinese medicine herb. Calli were cultured in glass bottles, each containing 100 mL of Murashige and Skoog’s basal medium supplemented with 2% sucrose and 0.4% gellan gum powder, a gelling agent. These bottles were incubated in a specially designed plant growth chamber equipped with eight different LED lights consisting of single or combinations of four different light spectra emitting blue (450 nm), green (525 nm), red (660 nm), and far-red (730 nm) light. After three months of incubation, morphological changes in embryogenic calli were recorded, and LC-MS/MS analysis of cultures was carried out for peimisine, sipeimine, peiminine, and peimine. The highest number of somatic embryos and the maximum fresh weight was recorded in calli incubated under red (9R), infrared (9IR), and a combination of red+blue+infrared (3R3B3IR), respectively, in decreasing order. The highest contents of peimisine, peiminine, and peimine were recorded under red (9R) and infrared (9IR) lights, respectively. Eight LED lights had significant effects on the morphogenesis of embryogenic calli of F. cirrhosa D. Don and contents of isosteroidal alkaloids.

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Impedance Measures and a Mounting Technique for Drosophila: Larval Movements, Heart Rate, Imaging, and Electrophysiology

Methods and Protocols ◽

10.3390/mps3010012 ◽

2020 ◽

Vol 3 (1) ◽

pp. 12

Author(s):

Noah de Castro ◽

Robin Lewis Cooper

Keyword(s):

Neuromuscular Junctions ◽

Light Emitting Diode ◽

Bright Light ◽

Infrared Camera ◽

Synaptic Function ◽

Light Emitting ◽

The Media ◽

Led Lights ◽

Suitable Technique ◽

Larval Movement

Monitoring movements of larval Drosophila with electrical detection allows one to record the behaviors without the use of lights and cameras. This is a suitable technique when studying the use of light-sensitive proteins in optogenetic studies. Electrical measures are feasible to use in determining when a larva starts to move or continues to move after a light induced activation of channelrhodopsin. We have developed a technique using an electrical measure of the media as an index of larval movement. As a proof of concept, recordings with an infrared camera of the larval movement were simultaneous made with electrical measures. The two techniques parallel each other in their ability to index larval movements. Bright light-emitting diode (LED) lights used in optogenetic experiments tend to saturate the detectors of the camera unless filters are used and different filters maybe necessary depending on the LED spectrum and sensitivity of the camera. Impedance measures are independent of the type of LED or brightness. We also assessed the use of a non-solvent based glue (3M Vetbond) to hold larvae in place while measuring synaptic function of neuromuscular junctions, cardiac function and influence of modulators, or activation of light-sensitive channels.

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Discomfort glare caused by white LEDs having different spectral power distributions

Lighting Research and Technology ◽

10.1177/1477153517704996 ◽

2017 ◽

Vol 50 (6) ◽

pp. 921-936 ◽

Cited By ~ 5

Author(s):

WJ Huang ◽

Y Yang ◽

M Ronnier Luo

Keyword(s):

White Light ◽

Spectral Power ◽

Light Emitting Diode ◽

Light Emitting ◽

White Leds ◽

Significant Difference ◽

Discomfort Glare ◽

Led Lights ◽

Green Leds

This paper describes an experiment to investigate discomfort glare caused by white light-emitting diode (LED) lights having different spectral power distributions. It included two groups: a ‘Metamerism’ group and a ‘correlated colour temperatures (CCT)’ group. In the former group, it was found that white lights at 7000 K constructed from different blue LEDs and the same red and green LEDs gave about the same glare perception. In the latter group, there was a significant difference in glare perception between white lights having different CCTs. Finally, glare models, including unified glare rating (UGR) and the newly derived QUGRspd, and mUGRspd models, were tested using the data from the experiment. All of them gave quite accurate predictions of the data.

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Data Communication Security Issues of Wi-Fi over Li-Fi

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c4489.098319 ◽

2019 ◽

Vol 8 (3) ◽

pp. 1977-1981

Keyword(s):

Light Emitting Diode ◽

Denial Of Service ◽

Data Communication ◽

Electrical Signal ◽

Visible Light Communications ◽

Light Emitting ◽

Security Issues ◽

The One ◽

Audio Video ◽

Led Lights

Visible Light Communications (VLC) system is called Light Fidelity One such example, analog data is passed to a LED (Light-Emitting Diode) bulb (using signal processing technology), after that it transmits data (which is implanted in its beam) to the detector or photodiode. The small commutes in the brisk feeble of LED bulbs is modulated by the receiver circuit into electrical signal. The signal is then reversed into a duplex data runnel that could be recognized in the same way that of audio, video and web programs that run on devices that has internet enabled. Wi-Fi is vulnerable to breaches involving various security issues such as Rouge Access Points, Denial of Service, Wireless Trespasser, Data Interruption, End point attacks etc. To overcome such restrictions, this paper proposes application level substructure for data communication using Li-Fi (Light Fidelity) Technology. By using LED lights as a transmission medium, the indoor wireless communication is achieved in much faster rate than the one WiFi (Wireless Fidelity) can provide.

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Phototactic Response of the Oriental Armyworm, Mythimna separata (Lepidoptera: Noctuidae), to Light-Emitting Diode Lights of Different Wavelengths

10.20944/preprints201905.0014.v1 ◽

2019 ◽

Author(s):

Kil-Nam Kim ◽

Hye-Sung Song ◽

Ryong-Jin Choe ◽

Zhi-Juan Huang ◽

Qiu-Ying Huang ◽

...

Keyword(s):

Light Emitting Diode ◽

Insect Pest ◽

Light Trap ◽

Mythimna Separata ◽

Light Emitting ◽

Led Light ◽

Phototactic Response ◽

Green Led ◽

Oriental Armyworm ◽

Led Lights

Recently, light traps using light-emitting diode (LED) lights have been applied to monitor or control insect pests. The oriental armyworm, Mythimna separata Walker, is an important insect pest that has caused damage to several cereal crops, including corn, wheat and rice. The present study aims to seek out a sensitive wavelength causing high phototactic response in M. separata. The study evaluated the phototactic responses of M. separata moths to several LED lights of different wavelengths and luminance intensities under laboratory condition. Results showed that green (520 nm) LED light resulted in significant phototactic response of M. separata moths compared to LED lights of other wavelengths. Additionally, the highest attraction rate of the moths to green LED light appeared in luminance intensity group of 200 lux compared to the other intensities groups. Experiments under optimum conditions based on the above experiments revealed that the green LED light exhibited the strongest attraction rate (64.44%) among all experimental groups. An experiment performed in a net cage also showed that green LED light resulted in the highest phototactic response of M. separata moths, 1.7 times more than a commercial black light used as control. These findings clearly demonstrate that M. separata moths have a high sensitivity to the green LED light. Therefore, a light trap equipped with green LED light could be useful for monitoring and controlling M. separata moths.

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Joule Thief Sebagai Boost Converter Daya LED Menggunakan Sel Volta Berbasis Air Laut

JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI ◽

10.36722/sst.v4i2.254 ◽

2018 ◽

Vol 4 (2) ◽

pp. 52

Author(s):

Anwar Mujadin ◽

Suci Rahmatia

Keyword(s):

Electromagnetic Field ◽

Electric Current ◽

Light Emitting Diode ◽

Boost Converter ◽

Experimental Results ◽

Power Transfer ◽

Light Emitting ◽

Electric Circuits ◽

Led Lights

Abstrak – Joule-Thief adalah salah satu rangkaian listrik untuk konservasi energi dengan menggunakan teknis medan elektromagnetik arus transien pada sebuah coil. Sirkuit ini dioperasikan menggunakan sebuah MOSFET sebagai saklar untuk meregenerasi tegangan dan arus listrik dalam satuan waktu kemudian disalurkan pada beban light emitting diode (LED). Dari hasil eksperimental, sel volta berbasis air laut dengan tegangan jepit 0.8V mampu mengaktifkan lampu LED dengan konfigurasi rangkaian serial. Hasilnya menunjukkan bahwa power transfer maksimum dari sirkuit Joule-thief sangat efektif sebagai pemasok daya beban 60 LED. Kata Kunci - Joule Thief, Boost Converter Daya LED, Sel Volta Berbasis Air Laut Abstract – Joule-Thief is one of the electric circuits for conservation energy by using electromagnetic field trancient current in a coil. This circuit is operated using a MOSFET as a switch to regenerating the voltage and current flowing along the coil. The electric current accumulates in the coil then in unity of time will be supplied to the light emitting diode (LED) load. From experimental results, water sea voltaic cells based with 0.8V clamp voltage are able to activate LED lights in serial circuit configurations. The results shown that power transfer joule-thief circuit is very effective capable of supplying LED up to 60 LEDs. Keywords - Joule Thief, Boost Converter Power LED, Sea-Based Voltaic Cells

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Case Study for Replacement of Conventional Lights by Led Lights

Journal of Science and Engineering ◽

10.3126/jsce.v7i0.26789 ◽

2019 ◽

Vol 7 ◽

pp. 44-51

Author(s):

Indu Duwal

Keyword(s):

Energy Saving ◽

Energy Demand ◽

Light Emitting Diode ◽

Light Sources ◽

Demand And Supply ◽

Light Emitting ◽

Return Of Investment ◽

Science Group ◽

Led Lights

With the increment in the gap between the demand and supply of energy, various alternatives for decreasing the demand of energy are major concern for the various stakeholders. In order to decrease the energy demand by lighting various energy efficient lights are available in market. However it is difficult to convince the residents to change conventional artificial light sources, since lighting system is an essential part in the building which ensures the comfort, productivity and safety of the occupants in the buildings. Among the various Light Emitting Diode (LED) lights are termed as one of the most efficient energy saving lights which aims to save almost more than 50 % of energy demand than that of CFL lights with same power of illumination. Hence, this study is carried out to calculate energy saving percentage after replacing the conventional lights like florescent, mercury lights and other forms of conventional lights by LED lights. Additionally the study also was focused to evaluate feasibility of the replacement of lights by LED lights in terms of energy saving and return of investment. The research was carried out in building used by Agrotechnology and Food Science (AFSG) science group of Wageningen University in the Netherlands. The results from the study showed that almost 50% of the energy can be saved after replacement by LED lights with around 5 years for return of investment. However, factors like 1) Number of operating hours, 2) Price of lights, 3) Energy cost, 4) Labour cost for replacement and adjustment and 5) Number of replacement and adjustment per hour are the influential features that effects in the performance of various types of lights

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Using Social Marketing to Spur Residential Adoption of ENERGY STAR®-Certified LED Lighting

Social Marketing Quarterly ◽

10.1177/1524500415577429 ◽

2015 ◽

Vol 21 (2) ◽

pp. 61-78 ◽

Cited By ~ 6

Author(s):

P. Wesley Schultz ◽

Julie Colehour ◽

Jill Vohr ◽

Lara Bonn ◽

Ashlee Bullock ◽

...

Keyword(s):

Social Marketing ◽

Light Emitting Diode ◽

Lessons Learned ◽

Control Group ◽

Light Emitting ◽

Energy Star ◽

Led Lighting ◽

Incandescent Bulb ◽

Star Program ◽

Led Lights

Recent technological advancements in lighting have produced light bulbs that are dramatically more efficient than the traditional incandescent bulb. Yet despite these benefits, the marketplace has been slow to adopt these newer and more efficient bulbs. To help facilitate this change, the Environmental Protection Agency’s ENERGY STAR program conducted a series of pilot behavior change campaigns to encourage residents to purchase and install ENERGY STAR-certified light-emitting diode (LED) lights. Campaigns were conducted with Duke Energy and Efficiency Vermont aimed at encouraging residents to purchase and install certified LED lighting in their homes. The campaigns used community-based social marketing (CBSM) as the platform for developing the overarching strategy and were developed to highlight the benefits of certified LED lights and to decrease the barriers. In Vermont, a school-based fund-raiser was used to promote certified LED bulbs, and in North Carolina, special in-store lighting events were held at Home Depot and Costco retail locations. Both programs were implemented using a control group, and quantitative outcomes were tracked. Reported results highlight the increase in sales of certified LEDs associated with the campaigns. Survey data are also reported from participants in the two campaigns, along with tests for spillover of the newly adopted behavior into other lighting purchases and behaviors. The lessons learned from these two CBSM pilots are synthesized into turnkey materials that can be adopted by other organizations looking to promote the adoption of LED lights.

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