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Author Shimose, T.; Yokawa, K.; Tachihara, K.
Title Higher Catch Rates Around the Full Moon for Blue Marlin, Makaira Nigricans, in a Diurnal Trolling Fishery Type Journal Article
Year 2013 Publication Bulletin of Marine Science Abbreviated Journal Bms
Volume 89 Issue 3 Pages 759-765
Keywords fish; blue marlin; Makaira nigricans; Moon; moonlight; Feeding Behavior
Abstract The relationship between lunar phase and catch rates of blue marlin, Makaira nigricans Lacépède, 1802, in a diurnal trolling fishery at Yonaguni Island, southwestern Japan, was investigated. The mean catch per unit effort of blue marlin to lunar day was expressed by a periodic regression and significantly increased around the full moon. The stomach content index also significantly increased around the full moon in small blue marlin (<200 cm lower jaw–fork length), indicating that diurnal feeding activities of blue marlin increased around the full moon, especially for smaller individuals. The diurnal feeding activity is thought to be influenced by the nighttime activities of blue marlin and/or prey movements.
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Language Summary Language Original Title
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ISSN 0007-4977 ISBN Medium (up)
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 63
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Author Becker, A.; Whitfield, A.K.; Cowley, P.D.; Järnegren, J.; Naesje, T.F.; Crispo, E.
Title Potential effects of artificial light associated with anthropogenic infrastructure on the abundance and foraging behaviour of estuary-associated fishes Type Journal Article
Year 2013 Publication Journal of Applied Ecology Abbreviated Journal J Appl Ecol
Volume 50 Issue 1 Pages 43-50
Keywords fish; biology; ecology
Abstract As a consequence of a positive phototaxic response, the findings of this study suggest that artificial light often associated with man-made structures has the potential to alter fish communities within urban estuarine ecosystems by creating optimal conditions for predators. Future coastal developments should consider the ecological implications of lighting on aquatic communities. We recommend that lighting be minimized around coastal infrastructure and the use of red lights, which have limited penetration though water, be considered.
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0021-8901 ISBN Medium (up)
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 64
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Author Bos, A.R.; Gumanao, G.S.
Title The lunar cycle determines availability of coral-reef fishes at fish markets Type Journal Article
Year 2012 Publication Journal of Fish Biology Abbreviated Journal J Fish Biol
Volume 81 Issue 6 Pages 2074-2079
Keywords Animals; Commerce; Coral Reefs; *Fishes; *Moon; Philippines; Seafood/*statistics & numerical data
Abstract During 139 visits between March 2009 and May 2011, it was found that the availability of reef fishes at a local fish market in the Philippines was highly affected by the lunar cycle. The number of vendors selling reef fishes was significantly lower (13.4%) during third lunar quarters (full moon periods) than during the first, second and fourth lunar quarters (40.2, 25.0 and 30.0%, respectively). It is recommended that the influence of the lunar cycle on fish availability is considered when designing sampling strategies for catch surveys.
Address Netherlands Centre for Biodiversity Naturalis, RA Leiden, The Netherlands. arthurrbos@yahoo.com
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0022-1112 ISBN Medium (up)
Area Expedition Conference
Notes PMID:23130702 Approved no
Call Number IDA @ john @ Serial 65
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Author Mehner, T.
Title Diel vertical migration of freshwater fishes – proximate triggers, ultimate causes and research perspectives: Diel vertical migration in freshwater fishes Type Journal Article
Year 2012 Publication Freshwater Biology Abbreviated Journal
Volume 57 Issue 7 Pages 1342-1359
Keywords diel vertical migration; *Fishes; freshwater fish
Abstract 1.&#8194;Diel vertical migrations (DVM) are typical for many cold-water fish species such as Pacific salmons (Oncorhynchus spp.) and coregonids (Coregonus spp.) inhabiting deep lakes. A comprehensive recent overview of DVM in freshwater fish has not been available, however.

2.&#8194;The main proximate trigger of DVM in freshwater fish is the diel change in light intensity, with declining illumination at dusk triggering the ascent and the increase at dawn triggering the descent. Additional proximate cues are hydrostatic pressure and water temperature, which may guide fish into particular water layers at night.

3.&#8194;Ultimate causes of DVM encompass bioenergetics efficiency, feeding opportunities and predator avoidance. None of these factors alone can explain the DVM in all cases. Multi-factorial hypotheses, such as the ‘antipredation window’ combined with the thermal niche hypothesis, are more likely to explain DVM. It is suggested that planktivorous fish move within a layer sufficiently well illuminated to capture zooplankton, but too dark for predators to feed upon the migrating fish. In complete darkness, fish seek layers with a temperature that optimises bioenergetics efficiency. The strength of each factor may differ from lake to lake, and hence system-specific individual analyses are needed.

4.&#8194;Mechanistic details that are still poorly explored are the costs of buoyancy regulation and migration, the critical light thresholds for feeding of planktivorous and piscivorous fish, and predator assessment by (and size-dependent predation risk of) the prey fish.

5.&#8194;A comprehensive understanding of the adaptive value of DVM can be attained only if the behaviour of individual fish within migrating populations is explicitly taken into account. Size, condition and reproductive value differ between individuals, suggesting that migrating populations should split into migrants and non-migrants for whom the balance between mortality risk and growth rate can differ. There is increasing evidence for this type of partial DVM within populations.

6.&#8194;Whereas patterns of DVM are well documented, the evolution of DVM is still only poorly understood. Because experimental approaches at realistic natural scales remain difficult, a combination of comprehensive data sets with modelling is likely to resolve the relative importance of different proximate and ultimate causes behind DVM in fish.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0046-5070 ISBN Medium (up)
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 66
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Author Rodrí­guez, A.; Garcí­­a, D.; Rodrí­guez, B.; Cardona, E.; Parpal, L.; Pons, P.
Title Artificial lights and seabirds: is light pollution a threat for the threatened Balearic petrels? Type Journal Article
Year 2015 Publication The Wilson Journal of Ornithologynithology Abbreviated Journal J. of Ornith.
Volume 156 Issue 4 Pages 893-902
Keywords Animals; birds; shearwater; Balearic shearwater; Puffinus mauretanicus; Scopoli's shearwater; Calonectris diomedea; European storm-petrel; Hydrobates pelagicus; Balearic Islands; Mediterranean; light pollution; biology; ecology; conservation
Abstract Petrels are among the most threatened group of birds. On top of facing predation by introduced mammals and incidental bycatch, these seabirds have to deal with an emerging threat, light pollution, which is increasing globally. Fledglings are disoriented and attracted to artificial lights in their maiden night flights from their nests to the sea. Once grounded, they are exposed to multiple threats leading to high mortality. We report on numbers of three petrel species (Balearic shearwater Puffinus mauretanicus, Scopoli's shearwater Calonectris diomedea, and European storm-petrel Hydrobates pelagicus) rescued on the Balearic Islands, Mediterranean Sea, in the period 1999-2013. We assessed the proportion of grounded fledglings in the population and colonies impact based on radiance levels measured from a nocturnal satellite image. We also calculated the radius of light pollution impact. At least 304 fledgling birds were found stranded due to attraction to artificial lights, fatally affecting 8.5 % of them. The proportion of grounded fledglings ranged between 0.13 and 0.56 % of the fledglings produced annually. The body mass of Balearic and Scopoli's shearwater fledglings decreased with rescue date. Light-induced mortality increased during the fledging period for Scopoli's shearwaters. Birds were rescued at a mean distance of 4833 m from the nearest colony, and between 30 and 47 % of colonies were exposed to light-polluted areas. Although impact seems to be low for all species, urban development and, consequently, the increase in light pollution in the proximity of the colonies should be taken into account to reduce as much as possible this emerging source of mortality.
Address Department of Evolutionary Ecology, Estación Biológica de Doñana (CSIC), Avda. Américo Vespucio s/n, 41092, Seville, Spain; airamrguez@ebd.csic.es
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Publisher English Place of Publication English Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2193-7206 ISBN Medium (up)
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1185
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