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Author Yamashita, Y.; Matsushita, Y.; Azuno, T.
Title Catch performance of coastal squid jigging boats using LED panels in combination with metal halide lamps Type Journal Article
Year 2012 Publication Fisheries Research Abbreviated Journal Fisheries Research
Volume 113 Issue 1 Pages 182-189
Keywords Squid jigging; LED; Metal halide lamp; Catch performance; GLM
Abstract Squid attracting light systems consisting of low power light emitting diode panels (LEDs) and conventional metal halide lamps (MHs) were tested to describe the influence of combinations of LEDs and MHs on squid catch. Fishing trials using LEDs (9 kW) and different numbers of MHs were carried out in August and September 2009 targeting two squid species: (1) Japanese common squid Todarodes pacificus in northern waters of the Sea of Japan (off Hokkaido) by 4 coastal squid jigging boats (19 gross tonnage) and (2) swordtip squid Photololigo edulis in western waters (off Iki) by 5 boats of the same class. Catches of both species tended to increase with the number of MHs. Generalized Linear Model analysis revealed that in addition to the number of MHs, the catch amount was influenced by fishing power (ability) of boat and by the monthly variation of squid abundance (only for P. edulis off Iki). The expected catch (number of boxes) was not proportional to the number of MHs. The largest catch was expected for P. edulis off Iki by using LEDs with 24 MHs. The optimal combination of LEDs and MHs for T. pacificus off Hokkaido was less clear because the combination with 36 MHs had the largest positive effect on the catch; this was the maximum number MHs used.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0165-7836 ISBN (up) Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 105
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Author Bramm, M.E.; Lassen, M.K.; Liboriussen, L.; Richardson, K.; Ventura, M.; Jeppesen, E.
Title The role of light for fish-zooplankton-phytoplankton interactions during winter in shallow lakes – a climate change perspective Type Journal Article
Year 2009 Publication Freshwater Biology Abbreviated Journal
Volume 54 Issue 5 Pages 1093-1109
Keywords ood availability; global warming; light manipulation; zooplanktivorous fish; zooplankton community structure
Abstract 1. Variations in the light regime can affect the availability and quality of food for zooplankton grazers as well as their exposure to fish predation. In northern lakes light is particularly low in winter and, with increasing warming, the northern limit of some present-day plankton communities may move further north and the plankton will thus receive less winter light.

2.&#8194;We followed the changes in the biomass and community structure of zooplankton and phytoplankton in a clear and a turbid shallow lake during winter (November–March) in enclosures both with and without fish and with four different light treatments (100%, 55%, 7% and <1% of incoming light).

3.&#8194;In both lakes total zooplankton biomass and chlorophyll-a were influenced by light availability and the presence of fish. Presence of fish irrespective of the light level led to low crustacean biomass, high rotifer biomass and changes in the life history of copepods. The strength of the fish effect on zooplankton biomass diminished with declining light and the effect of light was strongest in the presence of fish.

4.&#8194;When fish were present, reduced light led to a shift from rotifers to calanoid copepods in the clear lake and from rotifers to cyclopoid copepods in the turbid lake. Light affected the phytoplankton biomass and, to a lesser extent, the phytoplankton community composition and size. However, the fish effect on phytoplankton was overall weak.

5.&#8194;Our results from typical Danish shallow eutrophic lakes suggest that major changes in winter light conditions are needed in order to have a significant effect on the plankton community. The change in light occurring when such plankton communities move northwards in response to global warming will mostly be of modest importance for this lake type, at least for the rest of this century in an IPCC A2 scenario, while stronger effects may be observed in deep lakes.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0046-5070 ISBN (up) Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 106
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Author Perkin, E.K.; Hölker, F.; Tockner, K.
Title The effects of artificial lighting on adult aquatic and terrestrial insects Type Journal Article
Year 2014 Publication Freshwater Biology Abbreviated Journal Freshw Biol
Volume 59 Issue 2 Pages 368-377
Keywords biodiversity; connectivity; dispersal; high-pressure sodium lamp; light pollution; river
Abstract There is a growing concern that artificial light might affect local insect populations and disrupt their dispersal across the landscape. In this study, we investigated experimentally the effect of artificial light on flying insects in the field, with an emphasis on aquatic insects. We asked whether lights prevented the ability of insects to disperse across the landscape, a process that is crucial in colonising restored habitats.

We set up six, c. 3.5 m high downward facing high-pressure sodium streetlights along a permanently connected oxbow in the Spree River of eastern Germany. We collected insects using 12 flight intercept traps, each with trays at three different heights (0.5, 1.5 and 2.5 m), placed at distances 0, 3, 40 and 75 m from the lights and 5, 8 and 80 m from water. The number of emerging aquatic insects in the study area was measured with six emergence traps. We emptied the traps 22 times between June and September 2010; the lights were on for 11 of these nights and off for the other 11.

In total, we caught almost 27 times as many insects at traps 0 m from the lights when the lights were on than when they were off. Most insects caught when the lights were on were aquatic, with Diptera being the most common order. Furthermore, the proportion of aquatic insects caught at traps 0, 3 and 40 m from the lights when they were on was significantly higher than when they were off. On lit nights, more aquatic insects were captured per hour and m2 (area in which flying insects were intercepted) at traps 0 m from the lights than emerged from per square metre per hour from the Spree River.

Our results suggest that adult aquatic insects can be negatively affected by artificial light and that city planners should take this into account when designing lighting systems along rivers.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0046-5070 ISBN (up) Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 107
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Author Picchi, M.S.; Avolio, L.; Azzani, L.; Brombin, O.; Camerini, G.
Title Fireflies and land use in an urban landscape: the case of Luciola italica L. (Coleoptera: Lampyridae) in the city of Turin Type Journal Article
Year 2013 Publication Journal of Insect Conservation Abbreviated Journal J Insect Conserv
Volume 17 Issue 4 Pages 797-805
Keywords Turin; insects; Coleoptera Lampyridae; Luciola italica; Urban environment; Fireflies; Light pollution; Ecological corridors; Green areas; Po River; Italy
Abstract Research was carried out in the city of Turin (Northern Italy) in order to assess the suitability of the urban environment for fireflies.The study started in 2007 with an artistic and scientific project promoted by Parco Arte Vivente (PAV—Park of living art). Citizens joining the project recorded 18 areas where they could observe fireflies, which were identified as Luciola italica L. (Coleoptera Lampyridae). All of the 18 areas recorded by citizens were then visited during the summer of 2009 and the abundance of L. italica was estimated using transects. In 12 sites the presence of the firefly was confirmed. The habitat structures of L. italica were woods interspersed with clearings in the urban districts in the hills, and parks along rivers in the lower and more populated part of the city. In sites where fireflies were observed, the level of illuminance measured was significantly lower than in areas where L. italica was absent. The analysis of the landscape around the study areas showed a negative correlation between the extent of urbanization and fireflies abundance. Survival of L. italica populations in the urban area of Turin is influenced by the extent of green areas and the level of artificial illumination. Parks lying among rivers preserve a level of darkness suitable for fireflies and are connected by woody strips growing along the banks of rivers, that probably function as ecological corridors.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1366-638X ISBN (up) Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 108
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Author Sinam, B.; Sharma, S.; Thakurdas, P.; Joshi, D.S.
Title Bright photophase accelerates re-entrainment after experimental jetlag in Drosophila Type Journal Article
Year 2012 Publication Die Naturwissenschaften Abbreviated Journal Naturwissenschaften
Volume 99 Issue 7 Pages 575-578
Keywords Animals; Circadian Rhythm/*physiology; Drosophila/*physiology/*radiation effects; *Light; Motor Activity/physiology; *Photoperiod
Abstract The efficacy of bright photophase (BP) in accelerating the re-entrainment of Drosophila biarmipes rhythm following 8 h phase advance and delay of light-dark (LD) cycle was examined by subjecting the flies to 24 h LD cycles with dim photophase (DP) at 30 lx and BP at 300 lx. Re-entrainment was analysed by using the activity onset, activity offset and the duration of activity. Following LD advance or delay, the BP flies re-entrained faster than the DP flies which was attributed to the enhanced zeitgeber strength of BP. Nevertheless, the re-entrainment was a protracted process even in the BP flies since the activity offsets underwent more transients than the activity onsets. Thus, this study demonstrates that the BP accelerates the re-entrainment in D. biarmipes. It, however, also reveals that the re-entrainment is a prolonged process when the activity onset and offset are regarded as the rhythm markers.
Address Center for Biological Rhythm Research, Ahmednagar College, Ahmednagar, 414001, MS, India
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-1042 ISBN (up) Medium
Area Expedition Conference
Notes PMID:22684252 Approved no
Call Number IDA @ john @ Serial 109
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