LEADER 01061nam a2200277 i 4500 001 991000257619707536 008 090527s2009 it 000 0 ita d 020 $a9782130554868 035 $ab13832608-39ule_inst 040 $aDip.to Filosofia$bita 082 0 $a194 100 1 $aDescartes, Rene$0340660 245 13$aLa recherche e la vérité par la lumiere naturelle /$cRene Descartes ; Introduction et commentaire historique et conceptuel par Ettore Lojacono ; Textes revus par Massimiliano Savini 250 $a1. ed. 260 $aParis :$bPUF,$c2009 300 $a243 p. ;$c19 cm 440 0$aQuadrige 600 14$aDescartes, Rene 700 1 $aLojacono, Ettore 700 1 $aSavini, Massimiliano 907 $a.b13832608$b02-04-14$c27-05-09 912 $a991000257619707536 945 $aLE005 194 DES01. LOJ01. 02$g1$i2005000193903$lle005$o-$pE20.00$q-$rl$s- $t0$u0$v0$w0$x0$y.i14972803$z27-05-09 996 $aRecherche e la vérité par la lumiere naturelle$9233536 997 $aUNISALENTO 998 $ale005$b27-05-09$cm$da $e-$ffre$gfr $h3$i0 LEADER 03187nam 22005173 450 001 9910780129003321 005 20230418223436.0 010 $a0-309-16980-1 010 $a1-280-18447-7 010 $a9786610184477 010 $a0-309-50815-0 035 $a(CKB)111069351126456 035 $a(EBL)3375205 035 $a(SSID)ssj0000144607 035 $a(PQKBManifestationID)11150646 035 $a(PQKBTitleCode)TC0000144607 035 $a(PQKBWorkID)10147290 035 $a(PQKB)11735191 035 $a(MiAaPQ)EBC3375205 035 $a(EXLCZ)99111069351126456 100 $a20170301h20022002 ua 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aEffects of trawling and dredging on seafloor habitat 210 1$aWashington :$cNational Academies Press,$d2002. 210 4$aŠ2002 215 $a1 online resource (x, 126 pages) $cillustrations (some color), color maps 300 $aDescription based upon print version of record. 311 0 $a0-309-08340-0 327 $a""Front Matter""; ""Preface""; ""Contents""; ""Executive Summary""; ""1 Introduction""; ""2 Characterization of Fishing Gear""; ""3 Effects of Trawling and Dredging""; ""4 Habitat Mapping and Distribution of Fishing Effort""; ""5 Analyzing the Risk to Seafloor Habitats""; ""6 Management Options""; ""7 Findings and Recommendations""; ""References""; ""Appendix A Committee and Staff Biographies""; ""Appendix B Regional Distribution of Fishing Effort""; ""Appendix C Mapping Tools""; ""Appendix D Workshop Agendas""; ""Appendix E Acronyms"" 330 $aConcerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries--the first time that such data has been assembled and analyzed for the entire nation. 606 $aOcean bottom 606 $aTrawls and trawling$xEnvironmental aspects 615 0$aOcean bottom. 615 0$aTrawls and trawling$xEnvironmental aspects. 676 $a639.22 801 0$bAU-PeEL 801 1$bAU-PeEL 801 2$bAU-PeEL 906 $aBOOK 912 $a9910780129003321 996 $aEffects of trawling and dredging on seafloor habitat$93774631 997 $aUNINA