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Volumn 222, Issue 23-24, 2011, Pages 3895-3909

Individual-based modeling of an artificial reef fish community: Effects of habitat quantity and degree of refuge

Author keywords

Artificial reefs; Bioenergetics; Competition; IBM; Movement; Predation prey halos; Red snapper

Indexed keywords

ARTIFICIAL REEFS; BIOENERGETICS; IBM; MOVEMENT; PREDATION PREY HALOS; RED SNAPPER;

EID: 80755125839     PISSN: 03043800     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ecolmodel.2011.10.009     Document Type: Article
Times cited : (53)

References (51)
  • 1
    • 0024944793 scopus 로고
    • Effects of artificial reef deployment on nearby resident fishes
    • Alevizon W.S., Gorham J.C. Effects of artificial reef deployment on nearby resident fishes. Bulletin of Marine Science 1989, 44:646-661.
    • (1989) Bulletin of Marine Science , vol.44 , pp. 646-661
    • Alevizon, W.S.1    Gorham, J.C.2
  • 2
    • 0025027734 scopus 로고
    • Influence of an artificial reef on the surrounding infaunal community
    • Ambrose R.F., Anderson T.W. Influence of an artificial reef on the surrounding infaunal community. Marine Biology 1990, 107:41-52.
    • (1990) Marine Biology , vol.107 , pp. 41-52
    • Ambrose, R.F.1    Anderson, T.W.2
  • 3
    • 0036806476 scopus 로고    scopus 로고
    • Are artificial reefs comparable to neighbouring natural rock areas? A mollusk case study in the Gulf of Castellammare (NW Sicily)
    • Badalamenti F. Are artificial reefs comparable to neighbouring natural rock areas? A mollusk case study in the Gulf of Castellammare (NW Sicily). ICES Journal of Marine Science 2002, 59:127-131.
    • (2002) ICES Journal of Marine Science , vol.59 , pp. 127-131
    • Badalamenti, F.1
  • 4
    • 0001331796 scopus 로고
    • Age and growth of Atlantic croakers in the northern Gulf of Mexico, based on otolith sections
    • Barger L.E. Age and growth of Atlantic croakers in the northern Gulf of Mexico, based on otolith sections. Transactions of the American Fisheries Society 1985, 114:847-850.
    • (1985) Transactions of the American Fisheries Society , vol.114 , pp. 847-850
    • Barger, L.E.1
  • 5
    • 0034957627 scopus 로고    scopus 로고
    • The influence of rocky reefs on structure of benthic macrofauna in nearby soft-sediments
    • Barros F., Underwood A.J., Lindegarth M. The influence of rocky reefs on structure of benthic macrofauna in nearby soft-sediments. Estuarine and Coastal Shelf Science 2001, 52:191-199.
    • (2001) Estuarine and Coastal Shelf Science , vol.52 , pp. 191-199
    • Barros, F.1    Underwood, A.J.2    Lindegarth, M.3
  • 6
    • 0024905739 scopus 로고
    • Are high densities of fishes at artificial reefs the result of habitat limitation or behavioral preference?
    • Bohnsack J.A. Are high densities of fishes at artificial reefs the result of habitat limitation or behavioral preference?. Bulletin of Marine Science 1989, 44:631-644.
    • (1989) Bulletin of Marine Science , vol.44 , pp. 631-644
    • Bohnsack, J.A.1
  • 7
    • 0007874118 scopus 로고    scopus 로고
    • Artificial reef research: is there more than the attraction-production issue?
    • Bohnsack J.A., Ecklund A.M., Szmant A.M. Artificial reef research: is there more than the attraction-production issue?. Fisheries 1997, 22:14-16.
    • (1997) Fisheries , vol.22 , pp. 14-16
    • Bohnsack, J.A.1    Ecklund, A.M.2    Szmant, A.M.3
  • 8
    • 0036805518 scopus 로고    scopus 로고
    • Effects of increased habitat complexity on fish assemblages associated with large artificial reef units (French Mediterranean coast)
    • Charbonnel E., Serre C., Ruitton S., Harmelin J.G., Jensen A. Effects of increased habitat complexity on fish assemblages associated with large artificial reef units (French Mediterranean coast). ICES Journal of Marine Science 2002, 59:S208-S213.
    • (2002) ICES Journal of Marine Science , vol.59
    • Charbonnel, E.1    Serre, C.2    Ruitton, S.3    Harmelin, J.G.4    Jensen, A.5
  • 10
    • 82255172384 scopus 로고    scopus 로고
    • What is the importance of oil and gas platforms in the community structure and diet of benthic and demersal communities in the Gulf of Mexico? MS Thesis. Louisiana State University, Baton Rouge, LA.
    • Daigle, S.T., 2011. What is the importance of oil and gas platforms in the community structure and diet of benthic and demersal communities in the Gulf of Mexico? MS Thesis. Louisiana State University, Baton Rouge, LA.
    • (2011)
    • Daigle, S.T.1
  • 11
    • 0029668765 scopus 로고    scopus 로고
    • Comparison of fish assemblages among an artificial reef, a natural reef and a sandy-mud bottom site on the shelf off Iwate, northern Japan
    • Fujita T., Kitagawa D., Okuyama Y., Jin Y., Ishito Y., Inada T. Comparison of fish assemblages among an artificial reef, a natural reef and a sandy-mud bottom site on the shelf off Iwate, northern Japan. Environmental Biology of Fishes 1996, 46(4):351-364.
    • (1996) Environmental Biology of Fishes , vol.46 , Issue.4 , pp. 351-364
    • Fujita, T.1    Kitagawa, D.2    Okuyama, Y.3    Jin, Y.4    Ishito, Y.5    Inada, T.6
  • 12
    • 0034608725 scopus 로고    scopus 로고
    • Habitat use by an intertidal salt-marsh fish: trade-offs between predation and growth
    • Halpin P.M. Habitat use by an intertidal salt-marsh fish: trade-offs between predation and growth. Marine Ecology Progress Series 2000, 198:203-214.
    • (2000) Marine Ecology Progress Series , vol.198 , pp. 203-214
    • Halpin, P.M.1
  • 13
    • 32044466911 scopus 로고    scopus 로고
    • Development of benthic and fish assemblages on artificial reef materials compared to adjacent natural reef assemblages in Miami-Dade county Florida
    • Hanner S.E., McIntosh T.L., Blair S.M. Development of benthic and fish assemblages on artificial reef materials compared to adjacent natural reef assemblages in Miami-Dade county Florida. Bulletin of Marine Science 2006, 78(1):57-70.
    • (2006) Bulletin of Marine Science , vol.78 , Issue.1 , pp. 57-70
    • Hanner, S.E.1    McIntosh, T.L.2    Blair, S.M.3
  • 14
    • 0029504493 scopus 로고
    • Comparative energetics and the development of bioenergetics models for sympatric estuarine piscivores
    • Hartman K.J., Brandt S.B. Comparative energetics and the development of bioenergetics models for sympatric estuarine piscivores. Canadian Journal of Fisheries and Aquatic Sciences 1995, 52:1647-1666.
    • (1995) Canadian Journal of Fisheries and Aquatic Sciences , vol.52 , pp. 1647-1666
    • Hartman, K.J.1    Brandt, S.B.2
  • 15
    • 0000614125 scopus 로고
    • Energy requirements of a population of pinfish Lagodon rhomboides (Linnaeus)
    • Hoss D.E. Energy requirements of a population of pinfish Lagodon rhomboides (Linnaeus). Ecology 1974, 55:848-855.
    • (1974) Ecology , vol.55 , pp. 848-855
    • Hoss, D.E.1
  • 16
    • 0028583387 scopus 로고
    • Refuge spacing similarly affects reef-associated species from three phyla
    • Frazer T.K., Lindberg W.J. Refuge spacing similarly affects reef-associated species from three phyla. Bulletin of Marine Science 1994, 55(2-3):388-400.
    • (1994) Bulletin of Marine Science , vol.55 , Issue.2-3 , pp. 388-400
    • Frazer, T.K.1    Lindberg, W.J.2
  • 18
    • 37549065484 scopus 로고    scopus 로고
    • Influence of predatory reef fishes on the spatial distribution of Munida gregaria (=M. subrugosa) (Crustacea; Galatheidae) in shallow Patagonian soft bottoms
    • Galván D.E., Parma A.M., Iribarne O.O. Influence of predatory reef fishes on the spatial distribution of Munida gregaria (=M. subrugosa) (Crustacea; Galatheidae) in shallow Patagonian soft bottoms. Journal of Experimental Marine Biology and Ecology 2008, 354:93-100.
    • (2008) Journal of Experimental Marine Biology and Ecology , vol.354 , pp. 93-100
    • Galván, D.E.1    Parma, A.M.2    Iribarne, O.O.3
  • 19
    • 0031501405 scopus 로고    scopus 로고
    • Do artificial reefs increase regional fish production? A review of existing data
    • Grossman G.D., Jones G.P., Seaman W.J. Do artificial reefs increase regional fish production? A review of existing data. Fisheries 1997, 22:17-23.
    • (1997) Fisheries , vol.22 , pp. 17-23
    • Grossman, G.D.1    Jones, G.P.2    Seaman, W.J.3
  • 21
    • 0003624480 scopus 로고
    • Population effects of refuge dispersion for adult stone crabs (Xanthidae, Mennipe)
    • Lindberg W.J., Frazer T.K., Stanton G.R. Population effects of refuge dispersion for adult stone crabs (Xanthidae, Mennipe). Marine Ecology Progress Series 1990, 66:239-249.
    • (1990) Marine Ecology Progress Series , vol.66 , pp. 239-249
    • Lindberg, W.J.1    Frazer, T.K.2    Stanton, G.R.3
  • 22
    • 82255172385 scopus 로고    scopus 로고
    • Oil platforms and red snapper movement and behavior. MS Thesis. Louisiana State University, Baton Rouge, LA.
    • McDonough, M., 2009. Oil platforms and red snapper movement and behavior. MS Thesis. Louisiana State University, Baton Rouge, LA.
    • (2009)
    • McDonough, M.1
  • 23
    • 42949143519 scopus 로고    scopus 로고
    • Search and navigation in dynamic environments - from individual behaviors to population distributions
    • Mueller T., Fagan W.F. Search and navigation in dynamic environments - from individual behaviors to population distributions. Oikos 2008, 117(5):654-664.
    • (2008) Oikos , vol.117 , Issue.5 , pp. 654-664
    • Mueller, T.1    Fagan, W.F.2
  • 24
    • 82255184367 scopus 로고    scopus 로고
    • Modeling the effects of endocrine disrupting chemicals on Atlantic croaker: understanding biomarkers and predicting population responses. PhD Dissertation. Louisiana State University, Baton Rouge, LA.
    • Murphy, C.A., 2006. Modeling the effects of endocrine disrupting chemicals on Atlantic croaker: understanding biomarkers and predicting population responses. PhD Dissertation. Louisiana State University, Baton Rouge, LA.
    • (2006)
    • Murphy, C.A.1
  • 25
    • 0036328576 scopus 로고    scopus 로고
    • Age, growth, mortality, and distribution of pinfish (Lagodon rhomboides) in Tampa Bay and adjacent Gulf of Mexico waters
    • Nelson G.A. Age, growth, mortality, and distribution of pinfish (Lagodon rhomboides) in Tampa Bay and adjacent Gulf of Mexico waters. Fisheries Bulletin 2002, 100:582-592.
    • (2002) Fisheries Bulletin , vol.100 , pp. 582-592
    • Nelson, G.A.1
  • 26
    • 4444373254 scopus 로고    scopus 로고
    • Variance in reef spatial structure masks density dependence in coral-reef fish populations on natural versus artificial reefs
    • Overholtzer-McLeod K.L. Variance in reef spatial structure masks density dependence in coral-reef fish populations on natural versus artificial reefs. Marine Ecology Progress Series 2004, 276:269-280.
    • (2004) Marine Ecology Progress Series , vol.276 , pp. 269-280
    • Overholtzer-McLeod, K.L.1
  • 27
    • 33646149165 scopus 로고    scopus 로고
    • Consequences of patch reef spacing for density-dependent mortality of coral-reef fishes
    • Overholtzer-McLeod K.L. Consequences of patch reef spacing for density-dependent mortality of coral-reef fishes. Ecology 2006, 87(4):1017-1026.
    • (2006) Ecology , vol.87 , Issue.4 , pp. 1017-1026
    • Overholtzer-McLeod, K.L.1
  • 28
    • 0020871212 scopus 로고
    • Estimated amount of reef habitat on a portion of the U.S. South Atlantic and Gulf of Mexico Continental Shelf
    • Parker R.O., Colby D.R., Willis T.P. Estimated amount of reef habitat on a portion of the U.S. South Atlantic and Gulf of Mexico Continental Shelf. Bulletin of Marine Science 1983, 33:935-940.
    • (1983) Bulletin of Marine Science , vol.33 , pp. 935-940
    • Parker, R.O.1    Colby, D.R.2    Willis, T.P.3
  • 29
    • 0035206079 scopus 로고    scopus 로고
    • Age and growth of red snapper, Lutjanus campechanus, from an artificial reef area off Alabama in the northern Gulf of Mexico
    • Patterson W.F., Cowan J.H., Wilson C.A., Shipp R.L. Age and growth of red snapper, Lutjanus campechanus, from an artificial reef area off Alabama in the northern Gulf of Mexico. Fisheries Bulletin 2001, 99:617-627.
    • (2001) Fisheries Bulletin , vol.99 , pp. 617-627
    • Patterson, W.F.1    Cowan, J.H.2    Wilson, C.A.3    Shipp, R.L.4
  • 30
    • 24344481388 scopus 로고    scopus 로고
    • Site fidelity and dispersion of red snapper associated with artificial reefs in the northern Gulf of Mexico
    • Patterson W.F., Cowan J.H., Shipp R.L. Site fidelity and dispersion of red snapper associated with artificial reefs in the northern Gulf of Mexico. American Fisheries Society Symposium 2003, 3:181-194.
    • (2003) American Fisheries Society Symposium , vol.3 , pp. 181-194
    • Patterson, W.F.1    Cowan, J.H.2    Shipp, R.L.3
  • 31
    • 0036804576 scopus 로고    scopus 로고
    • Drilling platforms as artificial reefs: distribution of macrobenthic assemblages of the "Paguro" wreck (northern Adriatic Sea)
    • Ponti M., Abbiati M., Ceccherelli V.U. Drilling platforms as artificial reefs: distribution of macrobenthic assemblages of the "Paguro" wreck (northern Adriatic Sea). ICES Journal of Marine Science 2002, 59:316-323.
    • (2002) ICES Journal of Marine Science , vol.59 , pp. 316-323
    • Ponti, M.1    Abbiati, M.2    Ceccherelli, V.U.3
  • 32
    • 1642564081 scopus 로고    scopus 로고
    • Estimating enhancement of fish production by offshore artificial reefs: uncertainty exhibited by divergent scenarios
    • Powers S.P., Grabowski J.H., Peterson C.H., Lindberg W.J. Estimating enhancement of fish production by offshore artificial reefs: uncertainty exhibited by divergent scenarios. Marine Ecology Progress Series 2003, 264:265-277.
    • (2003) Marine Ecology Progress Series , vol.264 , pp. 265-277
    • Powers, S.P.1    Grabowski, J.H.2    Peterson, C.H.3    Lindberg, W.J.4
  • 33
    • 56949100932 scopus 로고    scopus 로고
    • Age-validation and growth of bluefish (Pomatomus saltatrix) along the east coast of the United States
    • Robillard E., Reiss C.S., Jones C.M. Age-validation and growth of bluefish (Pomatomus saltatrix) along the east coast of the United States. Fisheries Research 2009, 95:65-75.
    • (2009) Fisheries Research , vol.95 , pp. 65-75
    • Robillard, E.1    Reiss, C.S.2    Jones, C.M.3
  • 35
    • 34247602035 scopus 로고    scopus 로고
    • Effects of variable prey and cohort dynamics on growth of young-of-the-year estuarine bluefish: evidence for interactions between spring- and summer-spawned cohorts
    • Scharf F.S., Buckel J.A., Rose K.A., Juanes F., Cowan J.H. Effects of variable prey and cohort dynamics on growth of young-of-the-year estuarine bluefish: evidence for interactions between spring- and summer-spawned cohorts. Transactions of the American Fisheries Society 2006, 135:1266-1289.
    • (2006) Transactions of the American Fisheries Society , vol.135 , pp. 1266-1289
    • Scharf, F.S.1    Buckel, J.A.2    Rose, K.A.3    Juanes, F.4    Cowan, J.H.5
  • 36
    • 0028978980 scopus 로고
    • Super-individuals, a simple solution for modelling large populations on an individual basis
    • Scheffer M., Baveco J.M., DeAngelis D.L., Rose K.A., van Nes E.H. Super-individuals, a simple solution for modelling large populations on an individual basis. Ecological Modelling 1995, 80:161-170.
    • (1995) Ecological Modelling , vol.80 , pp. 161-170
    • Scheffer, M.1    Baveco, J.M.2    DeAngelis, D.L.3    Rose, K.A.4    van Nes, E.H.5
  • 37
    • 82255180934 scopus 로고    scopus 로고
    • Status of the red snapper in U.S. waters of the Gulf of Mexico: updated through 1998. National Oceanic and Atmospheric Administration, Southeast Fisheries Science Center, Sustainable Fisheries Division Contribution: SFD-99/00-75.
    • Schirripa, M.J., Legault, C.M., 1999. Status of the red snapper in U.S. waters of the Gulf of Mexico: updated through 1998. National Oceanic and Atmospheric Administration, Southeast Fisheries Science Center, Sustainable Fisheries Division Contribution: SFD-99/00-75.
    • (1999)
    • Schirripa, M.J.1    Legault, C.M.2
  • 38
    • 82255184366 scopus 로고    scopus 로고
    • Red snapper, Lutjanus Campechanus, food web models on Alabama artificial reefs. PhD Dissertation, University of South Alabama, Mobile, AL.
    • Shipley, J.B., 2008. Red snapper, Lutjanus Campechanus, food web models on Alabama artificial reefs. PhD Dissertation, University of South Alabama, Mobile, AL.
    • (2008)
    • Shipley, J.B.1
  • 39
    • 61449253090 scopus 로고    scopus 로고
    • A prospective of the importance of artificial habitat on the management of red snapper in the Gulf of Mexico
    • Shipp R.L., Bortone S.A. A prospective of the importance of artificial habitat on the management of red snapper in the Gulf of Mexico. Reviews in Fisheries Science 2009, 17:41-47.
    • (2009) Reviews in Fisheries Science , vol.17 , pp. 41-47
    • Shipp, R.L.1    Bortone, S.A.2
  • 41
    • 40149102335 scopus 로고    scopus 로고
    • Spatial variability in the distribution of dominant shallow-water benthos at Adelaide Island, Antarctica
    • Smale D. Spatial variability in the distribution of dominant shallow-water benthos at Adelaide Island, Antarctica. Journal of Experimental Marine Biology and Ecology 2008, 357:140-148.
    • (2008) Journal of Experimental Marine Biology and Ecology , vol.357 , pp. 140-148
    • Smale, D.1
  • 42
    • 28444435914 scopus 로고    scopus 로고
    • Influence of reef location on artificial-reef fish assemblages in the north-central Gulf of Mexico
    • Strelcheck A.J., Cowan J.H., Shah A. Influence of reef location on artificial-reef fish assemblages in the north-central Gulf of Mexico. Bulletin of Marine Science 2005, 77(3):425-440.
    • (2005) Bulletin of Marine Science , vol.77 , Issue.3 , pp. 425-440
    • Strelcheck, A.J.1    Cowan, J.H.2    Shah, A.3
  • 43
    • 0034837216 scopus 로고    scopus 로고
    • On the problems of epibioses, fouling and artificial reefs, a review
    • Svane I., Petersen J.K. On the problems of epibioses, fouling and artificial reefs, a review. Marine Ecology 2001, 22(3):169-188.
    • (2001) Marine Ecology , vol.22 , Issue.3 , pp. 169-188
    • Svane, I.1    Petersen, J.K.2
  • 44
    • 0028600909 scopus 로고
    • Movement and growth of red snapper, Lutjanus campechanus, from an artificial reef area in the northeastern Gulf of Mexico
    • Szedlmayer S.T., Shipp R.L. Movement and growth of red snapper, Lutjanus campechanus, from an artificial reef area in the northeastern Gulf of Mexico. Bulletin of Marine Science 1994, 55(2-3):887-896.
    • (1994) Bulletin of Marine Science , vol.55 , Issue.2-3 , pp. 887-896
    • Szedlmayer, S.T.1    Shipp, R.L.2
  • 45
    • 0028974992 scopus 로고
    • Effects of micro-habitat characteristics on the settlement and recruitment of a coral reef fish at two spatial scales
    • Tolimieri N. Effects of micro-habitat characteristics on the settlement and recruitment of a coral reef fish at two spatial scales. Ocecologia 1995, 102:52-63.
    • (1995) Ocecologia , vol.102 , pp. 52-63
    • Tolimieri, N.1
  • 46
    • 82255172382 scopus 로고    scopus 로고
    • Feeding ecology and production of the pinfish Lagodon rhomboides in temperate seagrass meadows. PhD Dissertation. University of South Alabama, Mobile, AL.
    • Thompson, K., 2000. Feeding ecology and production of the pinfish Lagodon rhomboides in temperate seagrass meadows. PhD Dissertation. University of South Alabama, Mobile, AL.
    • (2000)
    • Thompson, K.1
  • 47
    • 0020870136 scopus 로고
    • An experimental test of the effects of predation risk on habitat use in fish
    • Werner E.E., Gilliam J.F., Hall D.J., Mittelbach G.G. An experimental test of the effects of predation risk on habitat use in fish. Ecology 1983, 64:1540-1548.
    • (1983) Ecology , vol.64 , pp. 1540-1548
    • Werner, E.E.1    Gilliam, J.F.2    Hall, D.J.3    Mittelbach, G.G.4
  • 48
    • 0024254081 scopus 로고
    • Ontogenetic habitat shifts in bluegill: the foraging rate predation risk tradeoff
    • Werner E.E., Hall D.J. Ontogenetic habitat shifts in bluegill: the foraging rate predation risk tradeoff. Ecology 1988, 69:1352-1366.
    • (1988) Ecology , vol.69 , pp. 1352-1366
    • Werner, E.E.1    Hall, D.J.2
  • 49
    • 82255180933 scopus 로고    scopus 로고
    • Rigs and reefs: a comparison of the fish communities at two artificial reefs, a production platform, and a natural reef in the northern Gulf of Mexico. Prepared by the Coastal Fisheries Institute, School of the Coast and Environment, Louisiana State University. U.S. Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region, New
    • Wilson, C.A., Pierce, A., Miller, M.W., 2003. Rigs and reefs: a comparison of the fish communities at two artificial reefs, a production platform, and a natural reef in the northern Gulf of Mexico. Prepared by the Coastal Fisheries Institute, School of the Coast and Environment, Louisiana State University. U.S. Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region, New Orleans, LA. OCS Study MMS 2003-009.
    • (2003)
    • Wilson, C.A.1    Pierce, A.2    Miller, M.W.3
  • 50
    • 82255184365 scopus 로고    scopus 로고
    • Effects of depth, location, and habitat type on relative abundance and species composition of fishes associated with petroleum platforms and Sonnier bank in the northern Gulf of Mexico. Final Report (1435-0001-30660-19947). U.S. Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region.
    • Wilson, C.A., Miller, M.W., Allen, Y.C., Boswell, K.M., Nieland, D.L., 2006. Effects of depth, location, and habitat type on relative abundance and species composition of fishes associated with petroleum platforms and Sonnier bank in the northern Gulf of Mexico. Final Report (1435-0001-30660-19947). U.S. Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region.
    • (2006)
    • Wilson, C.A.1    Miller, M.W.2    Allen, Y.C.3    Boswell, K.M.4    Nieland, D.L.5
  • 51
    • 0036803476 scopus 로고    scopus 로고
    • Habitat preferences and site fidelity of juvenile red snapper (Lutjanus campechanus)
    • Workman I., Shah A., Foster D., Hataway B. Habitat preferences and site fidelity of juvenile red snapper (Lutjanus campechanus). ICES Journal of Marine Science 2002, 59:43-50.
    • (2002) ICES Journal of Marine Science , vol.59 , pp. 43-50
    • Workman, I.1    Shah, A.2    Foster, D.3    Hataway, B.4


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