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  • 1
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    Modeling and Analysis of Marine Environmental Problems (2011)
    Tokyo : TERRAPUB
    Details
    Keywords: marine environment ; environmental pollution ; marine pollution
    Description / Table of Contents: Ecosystem Modeling of the Oregon Shelf: Everything but the Kitchen Sink / Y. H. Spitz / pp. 1-9 --- Marine Ecosystem Simulation in the Indonesian Seas / Y. Sasai, A. R. Kartadikaria, Y. Miyazawa and K. Nadaoka / pp. 11-17 --- Response of Nutrients and Primary Production over the Shelf in the East China Sea to the Reduction of Oceanic Nutrient Supply / X. Guo and L. Zhao / pp. 19-30 --- Introduction of the Ecological Connectivity Hypoxia Model: ECOHYM—Model Concept and Its Validation on a Study Applied to Tokyo Bay / A. Sohma / pp. 31-38 --- Ecosystem and Nutrient Dynamics in the Seto Inland Sea, Japan / N. Yoshie, X. Guo, N. Fujii and T. Komorita / pp. 39-49 --- A Numerical Modeling Study of Japanese Sardine (Sardinops melanostictus) Migrations in the Western North Pacific / T. Okunishi, D. Ambe, S. Ito, T. Kameda, T. Setou, K. Komatsu, A. Kawabata, A. Takasuka and H. Kubota / pp. 51-56 --- Investigating Alternate Trophic Pathways through Gelatinous Zooplankton and Planktivorous Fishes in an Upwelling Ecosystem Using End-to-End Models / R. D. Brodeur, J. J. Ruzicka and J. H. Steele / pp. 57-63 --- Establishing a Conceptual Design for Jellyfish Blooms in the Seto Inland Sea / N. Fujii, A. Kaneda, S. Magome and H. Takeoka / pp. 65-71 --- Fate Prediction Model of Organic Chemicals in Coastal Bay Estuaries / K. Nakata, F. Horiguchi and T. Eriguchi / pp. 73-77 --- Ecosystem Analysis of the Seto Inland Sea: Bioaccumulation Model on a Basis of an Energy Balance Model / K. Omori, J. Shibata, H. Hamaoka, K. Matsumoto, T. Nanko, T. Kunihiro, T. W. Miller and H. Onishi / pp. 79-83 --- Trophic Dynamics of Pelagic Nekton in the Southern Benguela Current Ecosystem: Calibrating Trophic Models with Stable Isotope Analysis / C. D. van der Lingen and T. W. Miller / pp. 85-94 --- Tracing Dynamics of Organic Material Flow in Coastal Marine Ecosystems: Results from Manila Bay (Philippines) and Kyucho Intrusion (Japan) / T. W. Miller, G. Jaquinto, M. McGlone, A. Isobe, J. Shibata, H. Hamaoka and K. Omori / pp. 95-104 --- Variations of Seawater Temperature and Coastal Winds from 2003 to 2009 at the Bungo Channel, Japan / R. Shi, X. Guo and H. Takeoka / pp. 105-115 --- Spatial Variation of Submarine Groundwater Discharge (SGD) in the Central Part of Seto Inland Sea, Japan / M. Saito, X. Guo, S. Onodera, Y. Shimizu, Y. Kato, M. Tokumasu and H. Takeoka / pp. 117-123 --- Understanding What Drives Food Web Structure in Marine Pelagic Ecosystems / T. W. Miller, C. van der Lingen, R. Brodeur, K. Omori, H. Hamaoka and T. Isobe / pp. 125-131 --- Study of Sediment Cleanup Using Polychaetes / K. Ito, M. Nozaki, T. Kunihiro, C. Miura and T. Miura / pp. 133-139 --- Regional Characteristics of Lower Trophic Level Food Web Structure in the Seto Inland Sea / J. Shibata, H. Hamaoka, R. Isonaka, K. Matsumoto, T. Nanko, T. W. Miller, H. Onishi, T. Kunihiro and K. Omori / pp. 141-149 --- Sources of Sedimentary Organic Carbon in Mangrove Ecosystems from Ba Lat Estuary, Red River, Vietnam / N. T. Tue, H. Hamaoka, A. Sogabe, T. D. Quy, M. T. Nhuan and K. Omori / pp. 151-157 --- The Fish Composition of Phan Thiet Bay, Binh Thuan Province, Vietnam in Connection with Environmental Quality / N. T. Nam, N. X. Huan, V. T. Tang, T. W. Miller and K. Omori / pp. 159-167 --- The Roles of Marine Phytoplankton and Ocean Circulation in Determining the Global Fate of Polychlorinated Biphenyls / T. Kawai, I. C. Handoh and N. Suzuki / pp. 169-178 --- Bayesian Uncertainty Analysis of the Global Dynamics of Persistent Organic Pollutants: Towards Quantifying the Planetary Boundaries for Chemical Pollution / I. C. Handoh and T. Kawai / pp. 179-187 --- What Drives the Fate of Persistent Organic Pollutants in the North Sea? Insights from a Regional Model / T. Ilyina / pp. 189-195 --- Process Study on Numerical Simulation for Persistent Organic Pollutants in the East China Sea / J. Ono, D. Takahashi, X. Guo, S. Takahashi and H. Takeoka / pp. 197-204 --- Monitoring of Contamination by Non-PBDE Brominated Flame Retardants in Asian Coastal Waters Using Mussels as a Bioindicator / S. Ogawa, T. Isobe, K. Ramu, A. Subramanian, S. Takahashi and S. Tanabe / pp. 205-211 --- Inter-species Differences of Hydroxylated Polychlorinated Biphenyls (OHPCBs) in the Blood of Small Cetaceans / M. Ochiai, K. Nomiyama, T. Isobe, T. Matsuishi, T. K. Yamada and S. Tanabe / pp. 213-220 --- Accumulation of Brominated Flame Retardants in Harbour and Dall's Porpoises from Hokkaido / A. Saito, T. Isobe, T. Matsuishi, T. K. Yamada, Y. Tajima and S. Tanabe / pp. 221-228 --- Contamination by Brominated Flame Retardants (BFRs) in Common Cormorants from Lake Biwa / R. Hashikawa, T. Isobe, S. Yano, T. Kunisue, K. Nakayama, A. Sudo, S. Takahashi and S. Tanabe / pp. 229-238 --- Formulation of Leeway-Drift Velocities for Sea-Surface Drifting-Objects Based on a Wind-Wave Flume Experiment / A. Isobe, H. Hinata, S. Kako and S. Yoshioka / pp. 239-249 --- Investigating the Accumulation of Plastic Debris in the North Pacific Gyre / J. J. Leichter / pp. 251-259 --- Deep-Sea Litter Study Using Deep-Sea Observation Tools / H. Miyake, H. Shibata and Y. Furushima / pp. 261-269 --- Toxic Metals in Polyethylene Plastic Litter / E. Nakashima, A. Isobe, S. Kako, S. Magome, N. Deki, T. Itai and S. Takahashi / pp. 271-277
    Pages: Online-Ressource (IX, 277 Seiten)
    ISBN: 9784887041547
    URL: http://www.terrapub.co.jp/onlineproceedings/ec/05/
    Language: English
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    E-BOOK
  • 2
    Electronic Resource
    Electronic Resource
    Intraspecific brood-mixing of the cichlid fishPerissodus microlepis in Lake Tanganyika (1995)
    Springer
    Environmental biology of fishes 43 (1995), S. 201-206 
    Details
    ISSN: 1573-5133
    Keywords: Mixed brood ; Farming-out ; Scale-eater ; Cichlidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis The frequency and origin of intraspecific brood-mixing in the biparental cichlid fishPerissodus microlepis were investigated by the cohort analysis of schooling young and the underwater observation of guarding parents. The cohort analysis showed that brood-mixing started from the early guarding state when the young were smaller than 10 mm standard length and nearly all schools of young larger than 16 mm contained alien young from up to 6 broods. Brood farming-out of this fish, which was originally proposed to be a way adopted only by a deserted parent, was performed also by paired parents. We suggest that brood-mixing inP. microlepis is attributed mainly to brood farming-out by paired and deserted parents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00002492
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  • 3
    Electronic Resource
    Electronic Resource
    Starvation of drifting goby larvae due to retention of free embryos in upstream reaches (1998)
    Springer
    Environmental biology of fishes 52 (1998), S. 321-329 
    Details
    ISSN: 1573-5133
    Keywords: amphidromy ; diel drift pattern ; otolith ; Rhinogobius ; Gobiidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The embryonic drift pattern of amphidromous Rhinogobius species varies along river courses. It peaks soon after sunset in reaches with gentle gradient on the plains, whereas it occurs throughout the day in steep reaches. Examination of the size of the sagittal otolith and notochord length indicated that the age of embryos drifting in steep reaches varied widely, ranging from 0 to 7 days. Many had exhausted their yolk. We attributed the all-day drift in steep reaches to retention of drifting embryos in slack waters or eddies near the banks. In contrast, most embryos drifting in reaches with gentle gradients were recently-hatched individuals. We estimated that in normal or low river flow most embryos from the upstream reaches perish through starvation before they reach the sea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007333302864
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  • 4
    Electronic Resource
    Electronic Resource
    Feeding ecology of the Pacific Golden Plover (Pluvialis fulva) in the Sg. Labu River on the west coast of the Malay Peninsula (2000)
    Springer
    Hydrobiologia 437 (2000), S. 221-233 
    Details
    ISSN: 1573-5117
    Keywords: mangrove forest ; mud flat ; feeding behaviour ; golden plover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The feeding ecology of the Pacific Golden Plover (Pluvialis fulva) in the Sg. Labu river near the Matang Mangrove Forest Reserve on the west coast of the Malay Peninsula was studied in March and April of 1994. The plovers had two foraging sites, a polychaete-feeding and a mussel-feeding site, which were located at a distance of about 1 km from each other. The tidal height of the polychaete-feeding site was higher than that of the mussel-feeding site, which was not exposed at the neap tide. Therefore, the polychaete-feeding site, which was exposed during every low tide, was better for food collection than the mussel-feeding site. The individuals that undertook more frequent changes in feeding sites had a lower intake rate of polychaetes in the polychaete-feeding site. There were two classes in the feeding order, and the lower class had to feed on mussels in addition to polychaetes to obtain sufficient food. For polychaete-eaters, the total number of steps during a feeding bout was significantly higher and the number of pecks was significantly lower than those of mussel-eaters. Usually, mussel-eaters spent more time preening and resting than polychaete-eaters, although the former had less time for feeding than the latter had because of the shorter exposure time of the mussel-feeding site. This means that mussel-eaters may have had higher feeding efficiency than polychaete-eaters, regardless of their preference for polychaetes as a diet. Polychaete larvae frequently settled on mussel beds and their populations became established after the collapse of mussel populations. Therefore, mussels were not only an important part of the diet of P. fulva, but they also constructed mussel beds that attract polychaetes, i.e. the plover's most important food.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026523527872
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  • 5
    Electronic Resource
    Electronic Resource
    Studies on the salinity and desiccation tolerances of Helice tridens and Helice japonica (Decapoda: Grapsidae) (1998)
    Springer
    Hydrobiologia 386 (1998), S. 27-36 
    Details
    ISSN: 1573-5117
    Keywords: desiccation ; salinity ; Helice tridens ; Helice japonica ; western Japan
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In the Shigenobu River Estuary (33 ° 48′ 18″ N, 132 ° 41′ 10″ E), Matsuyama (Japan), Helice tridens inhabits the mid-intertidal zone to the limit of the high tide, while H. japonica is found around the mid-intertidal zone. In addition, H. japonica is distributed further downstream than H. tridens. These differences suggest that H. japonica has a lower salinity and desiccation tolerance than H. tridens. Laboratory experiments on salinity tolerance confirmed the higher tolerance of H. tridens compared to H. japonica. Helice tridens survived at least a week under fresh water conditions, whereas most of the H. japonica died. Helice tridens was shown to be more able to tolerate desiccation than H. japonica, through behavioral, not physiological, adaptation to dry conditions. The present results demonstrate a stronger adaptation of H. tridens to semi-terrestrial and/or freshwater environments than H. japonica.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003461911201
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  • 6
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    Carbon Sources Supporting Macro-Invertebrate Communities in Restored Mangrove Forests from Hau Loc, Thanh Hoa, Vietnam (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-08-25
    Description: Mangrove forests are important in providing habitats for complex communities of terrestrial and marine fauna. Moreover, they are recognized as highly productive ecosystems in providing nutrients to mangrove food webs or exporting them to nearby coastal waters. In the present study, stable isotopes of carbon and nitrogen were applied to examine the changes in the diets of benthic invertebrate communities following mangrove restoration. The isotope signature of invertebrate tissues varied among the forest ages and locations and ranged from 3.7 ± 1.0 to 13.9 ± 1.1‰ and −26.6 ± 0.5 to −15.0 ± 0.4‰ for δ15N and δ13C, respectively. The results showed that the food source assimilation of macro-invertebrates is slightly altered from a mixture of benthic microalgae and marine phytoplankton in the mudflat to a combination of benthic microalgae and sediment organic matter in the Sonneratia caseolaris and the Kandelia obovata forests. Therefore, the diets of macro-invertebrates varied following forest ages and the position of the forest in the intertidal zone. These insights from the present study are useful for the effective conservation and restoration of mangrove forests in Vietnam and worldwide.
    Electronic ISSN: 2077-1312
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Molecular Diversity Preservation International
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  • 7
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    Increased SPHK2 transcription of human colon cancer cells in serum-depleted culture: the involvement of CREB transcription factor (2015)
    Wiley
    Details
    Publication Date: 2015-03-25
    Description: ABSTRACT Sphingosine kinases (SPHK) are important to determine cells' fate by producing sphingosine 1-phosphate. Reportedly, exogenous SPHK2 overexpression induces cell cycle arrest or cell death. However, the regulatory mechanism of SPHK2 expression has not been fully elucidated. Here, we analyzed this issue using human colon cancer cell lines under various stress conditions. Serum depletion (FCS(-)) but not hypoxia and glucose depletion increased mRNA, protein and enzyme activity of SPHK2 but not SPHK1. In HCT 116 cells mostly used, SPHK2 activity was predominant over SPHK1, and serum depletion increased both nuclear and cytoplasmic SPHK2 activity. Based on previous reports analyzing cellular response after serum depletion, the temporal changes of intracellular signaling molecules and candidate transcription factors for SPHK2 were examined using serum-depleted HCT116 cells, and performed transfection experiments with siRNA or cDNA of candidate transcription factors. Results showed that the rapid and transient JNK activation followed by CREB activation was the major regulator of increased SPHK2 transcription in FCS(-) culture. EMSA and ChIP assay confirmed the direct binding of activated CREB to the CREB binding site of 5' SPHK2 promoter region. Colon cancer cells examined continued to grow in FCS(-) culture, although mildly, while hypoxia and glucose depletion suppressed cell proliferation or induced cell death, suggesting the different role of SPHK2 in different stress conditions. Because of the unique relationship observed after serum depletion, we examined effects of siRNA for SPHK2, and found the role of SPHK2 as a growth or survival factor but not a cell proliferation inhibitor in FCS(-) culture. This article is protected by copyright. All rights reserved
    Electronic ISSN: 0091-7419
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Published by Wiley
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  • 8
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    Species-diverse coral communities on an artificial substrate at a tuna farm in Amami, Japan (2013)
    Elsevier
    Details
    Publication Date: 2013-04-01
    Print ISSN: 0141-1136
    Electronic ISSN: 1879-0291
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Published by Elsevier
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  • 9
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    Spatial distribution and corresponding determining factors of metal concentrations in surface sediments of Beppu Bay, southwest Japan (2011)
    Elsevier
    Details
    Publication Date: 2011-05-01
    Print ISSN: 0141-1136
    Electronic ISSN: 1879-0291
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Published by Elsevier
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  • 10
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    Upwelling-like bottom intrusion enhances the pelagic–benthic coupling by a fish predator in a coastal food web (2013)
    Springer
    Details
    Publication Date: 2013-11-22
    Print ISSN: 1386-2588
    Electronic ISSN: 1573-5125
    Topics: Biology
    Published by Springer
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