<html> <head> <title>Welcome to Ecotec &nbsp;&nbsp;[Hydro&eacute;lectrique]</title> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> </head>    <body bgcolor="#FFFFFF" text="#000000" link="#336633" vlink="#808080" background="images/fond_2.gif" topmargin=0 marginheight=0> <SCRIPT LANGUAGE="JavaScript">  <!-- Hide from old browsers   if (document.images) { // rrn= new Array();         rrn[0]= new Image();         rrn[0].src= "images/left2_n.gif";         rrn[1] = new Image();         rrn[1].src = "images/left3_n.gif";         rrn[2] = new Image();         rrn[2].src = "images/left4_n.gif";         rrn[3] = new Image();         rrn[3].src = "images/left6_n.gif";         rrn[4] = new Image();         rrn[4].src = "images/left8.gif";         rrn[5] = new Image();         rrn[5].src = "images/left9.gif";         rrn[6] = new Image();         rrn[6].src = "images/left10.gif";         rrn[7] = new Image();         rrn[7].src = "images/left11.gif";         rrn[8] = new Image();         rrn[8].src = "images/left13.gif";          rrn[9] = new Image();         rrn[9].src = "images/left5_n.gif";         rrn[10] = new Image();         rrn[10].src = "images/left7_n.gif";                  rrn[11] = new Image();         rrn[11].src = "images/left13p1.gif";         rrn[12] = new Image();         rrn[12].src = "images/left13p2.gif";         rrn[13] = new Image();         rrn[13].src = "images/left13p3.gif";          rrr= new Array();         rrr[0]= new Image();         rrr[0].src= "images/left2_on_n.gif";         rrr[1] = new Image();         rrr[1].src = "images/left3_on_n.gif";         rrr[2] = new Image();         rrr[2].src = "images/left4_on_n.gif";         rrr[3] = new Image();         rrr[3].src = "images/left6_on_n.gif";         rrr[4] = new Image();         rrr[4].src = "images/left8_on.gif";         rrr[5] = new Image();         rrr[5].src = "images/left9_on.gif";         rrr[6] = new Image();         rrr[6].src = "images/left10_on.gif";         rrr[7] = new Image();         rrr[7].src = "images/left11_on.gif";         rrr[8] = new Image();         rrr[8].src = "images/left13_on.gif"; 		         rrr[9] = new Image();         rrr[9].src = "images/left5_on_n.gif";         rrr[10] = new Image();         rrr[10].src = "images/left7_on_n.gif";         		         rrr[11] = new Image();         rrr[11].src = "images/left13p1_on.gif";         rrr[12] = new Image();         rrr[12].src = "images/left13p2_on.gif";         rrr[13] = new Image();         rrr[13].src = "images/left13p3_on.gif";  }  function changeImage(row,s) { if (!document.images)         return ; if (s==1)         {                 document.images['r'+row].src = rrr[row-1].src;         } else         {                 document.images['r'+row].src = rrn[row-1].src;         }  } // Stop hiding from old browsers -->  </SCRIPT>  <!-- begin main table --> <table cellpadding="0" cellspacing="0" border="0" width=738> <tr> 	<td><img src="images/pixel.gif" width=1 height=14 alt="" border="0"><br></td> 	<td></td> 	<td></td> </tr>  <tr> 	<td valign="top"> 	<a href="index.html"><img src="images/logo_n.gif" width=179 height=82  alt="Page d'accueil" border="0"></a><br> 	<img src="images/left1_n.gif" width=179 height=29  border="0"><br> 	<A HREF="lacs.html" onmouseover="changeImage(1,1); window.status='LACS ET RIVIERES'; return true;" 	onmouseout="changeImage(1,0); window.status=''; return true;"><img name="r1" src="images/left2_n.gif" 	width=179 height=18 alt="Lacs et Rivires" border="0"></a><br> 	<A HREF="hydro.html" onmouseover="changeImage(2,1); window.status='HYDROELECTRIQUE'; return true;" 	onmouseout="changeImage(2,0); window.status=''; return true;"><img name="r2" src="images/left3_n.gif" 	 width=179 height=18 alt="Hydrolectrique" border="0"></a><br> 	<A HREF="poisson.html" onmouseove="changeImage(3,1); window.status='POISSONS/PCHE'; return true;" 	onmouseou="changeImage(3,0); window.status=''; return true;"><img name="r3" src="images/left4_on_n.gif" 	 width=179 height=18 alt="Poissons/Pche" border="0"></a><br> 					<a href="etudesimpact.html" onmouseover="changeImage(10,1); window.status='ETUDES'; return true;" onmouseout="changeImage(10,0); window.status=''; return true;"><img name="r10" src="images/left5_n.gif" width=179 height=30 alt="" border="0"><br> 						<A HREF="ecobilans.html" onmouseover="changeImage(4,1); window.status='ECO-BILANS'; return true;" 	 onmouseout="changeImage(4,0); window.status=''; return true;"><img name="r4" src="images/left6_n.gif" 	  width=179 height=19 alt="Etudes d'impact" border="0"></a><br> 						<a href="iso14000.html" onmouseover="changeImage(11,1); window.status='ISO14000'; return true;" onmouseout="changeImage(11,0); window.status=''; return true;"><img name="r11" src="images/left7_n.gif" width=179 height=30 alt="" border="0"><br> 							<A HREF="naturels.html" onmouseover="changeImage(5,1); window.status='MILIEUX NATURELS'; return true;" 	 onmouseout="changeImage(5,0); window.status=''; return true;"><img name="r5" src="images/left8.gif" 	 width=179 height=19 alt="Milieux naturels" border="0"></a><br> 							<A HREF="paysage.html" onmouseover="changeImage(6,1); window.status='PAYSAGE'; return true;" 	onmouseout="changeImage(6,0); window.status=''; return true;"><img name="r6"  src="images/left9.gif" 	width=179 height=18 alt="Paysage" border="0"></a><br> 							<A HREF="faune.html" onmouseover="changeImage(7,1); window.status='FAUNE'; return true;" 	 onmouseout="changeImage(7,0); window.status=''; return true;"><img name="r7" src="images/left10.gif" 	  width=179 height=18 alt="Faune" border="0"></a></a></a> 					<p> 					<table border=0 cellpadding=0 cellspacing=0> 						<tr> 							<td valign=top><img src="images/left12.gif" width=51 height=53 alt="" border="0"></td> 							<td valign=top><a href="graviere.html" onmouseover="changeImage(12,1); window.status='GRAVIERE'; return true;" onmouseout="changeImage(12,0); window.status=''; return true;"><img name="r12" src="images/left13p1.gif" width=99 height=18 border=0 alt=""><br> 									<a href="dechets.html" onmouseover="changeImage(13,1); window.status='DECHETS'; return true;" onmouseout="changeImage(13,0); window.status=''; return true;"><img name="r13" src="images/left13p2.gif" width=99 height=18 border=0 alt=""><br> 										<a href="zonesagric.html" onmouseover="changeImage(14,1); window.status='ZONE AGRICOLES'; return true;" onmouseout="changeImage(14,0); window.status=''; return true;"><img name="r14" src="images/left13p3.gif" width=99 height=18 border=0 alt=""><br> 										</a></a></a></td> 						</tr> 					</table> 					<p><a href="etudesimpact.html" onmouseover="changeImage(10,1); window.status='ETUDES'; return true;" onmouseout="changeImage(10,0); window.status=''; return true;"><a href="iso14000.html" onmouseover="changeImage(11,1); window.status='ISO14000'; return true;" onmouseout="changeImage(11,0); window.status=''; return true;"><a href=index.html><img src="images/but_home.gif" width=179 height=22 border=0 alt=""></a></a></a> 					<p><br> 						<br> 						<br> 					</p> 					<p><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2"><b>En Suisse</b></font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br> 							</b></font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">ECOTEC Environnement SA</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><br> 						</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">Rue Fran&ccedil;ois-Ruchon 3</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><br> 						</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">CH - 1203 Gen&egrave;ve</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><br> 						</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">T&eacute;l. 022.344.91.19</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><br> 						</font><font color="#2e6620" size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">Fax 022.344.33.65 </font></p> 					<p><font size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><font color="#2e6620" size="2">En France</font></b></font><font size="1" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><font color="#2e6620"><br> 								</font></b></font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1">ECOTEC Environnement S&agrave;rl</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1"><br> 						</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1">Belleville-Haut</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1"><br> 						</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1">F - 74650 Chavanod</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1"><br> 						</font><font color="#2e6620" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="1">T&eacute;l. 04.74.46.91.46</font></p> 				</td>  	<td valign="top" colspan="2"><nobr><img src="images/t_poisson.gif" width=403 height=35 Alt="" border="0"><A HREF="mailto:info@ecotec.ch"><img src="images/contact.gif" width=149 height=35 alt="Contactez-nous!" border="0"></a></nobr>  	<br><div align=right><font face=arial size=2><a href=poisson_1.html>[macrofaune benthique & &eacute;crevisses]</a> <a href=apc_p.html>[analyses physico-chimiques]</a> [am&eacute;nagements piscicoles]<p> 	<!-- HERE COMES TEXT SECTION 1 -->  	<table border="0" cellpadding="5" cellspacing="0" width="559"> 								<tr> 	<td width="9"> 										 									</td> 	<td><img src="images/pixel.gif" width=9 height=1 alt="" border="0"><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="3"><b>Am&eacute;nagements piscicoles</b></font><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2"><b><br> 											</b></font> 										<ul type="square" compact> 											<li><b><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Etudes des exigences des diff&eacute;rentes esp&egrave;ces de poissons en pr&eacute;sence</font></b> 											<li><b><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Evaluation de la n&eacute;cessit&eacute; d'un dispositif</font></b> 											<li><b><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Recherche d'un type de dispositif de franchissement appropri&eacute; aux esp&egrave;ces pr&eacute;sentes et &agrave; la configuration de l'obstacle</font></b> 											<li><b><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Optimisation de dispositifs existants</font></b> 											<li><b><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">D&eacute;finition de dispositifs d'effarouchement ou de lutte contre l'avalaison</font></b> 										</ul> 									</td> 	<td valign="top" ALIGN=LEFT></td> 									<td valign="top" align=LEFT><img src="images/img_ap_1.jpg" width=175 height=261 border=0 alt=""></td> 								</tr> 							</table> 	 	<p> 	<img src="images/img_line.gif" width=550 height=15 border=0 alt=""> 	<!-- HERE COMES TEXT SECTION 1 -->  	<table border="0" cellpadding="5" cellspacing="0"> 	<tr> 	<td><img src="images/pixel.gif" width=9 height=1 alt="" border="0"></td> 	<td><img src="images/img_ap_2.jpg" width=230 height=150 border=0 alt=""> 	</td> 	<td valign="middle"><font face="Arial, Helvetica" size=2>De l'tude de faisabilit jusqu'au suivi de chantier, la ralisation d'une passe  poissons ncessite une troite collaboration entre hydrobiologistes et hydrauliciens. De trop nombreux ouvrages se sont avrs non fonctionnels parce que les besoins des espces de poissons concernes n'ont pas t pris en compte.</tr> 	</table> 	 	<p>	<img src="images/img_line.gif" width=550 height=15 border=0 alt=""> 	 	<table border="0" cellpadding="5" cellspacing="0"> 	<tr> 	<td><img src="images/pixel.gif" width=9 height=1 alt="" border="0"></td> 	<td><font face="Arial, Helvetica" size=2> 	Les barrages importants ncessitent des dispositifs de franchissement permettant de gagner la hauteur de chute sur une distance courte. Ce sont en gnral des passes  bassins successifs en bton. En revanche, il est souvent possible pour des prises d'eau plus petites d'amnager un canal de contournement de faon naturelle. Cette solution assure le passage d'un grand nombre d'espces et a l'avantage de prserver le continuum du milieu aquatique.<td valign="middle"><img src="images/img_ap_3.jpg" width=148 height=239 border=0 alt=""></td> 	</tr> 	</table> 	<p>	<img src="images/img_line.gif" width=550 height=15 border=0 alt=""> 	<table border="0" cellpadding="5" cellspacing="0"> 	<tr> 	<td><img src="images/pixel.gif" width=9 height=1 alt="" border="0"></td> 	<td><img src="images/img_ap_4.jpg" width=230 height=150 border=0 alt=""> 	</td> 	<td valign="middle"><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Exemples de r&eacute;f&eacute;rences :</font> 										<ul> 											<li><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">R&eacute;alisation de la Passe &agrave; poissons sur le Barrage de Verbois (GE, 1995-1999)</font> 											<li><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Reconstruction de l'&eacute;chelle &agrave; poissons du barrage des Usiniers sur la Versoix. (GE, 1996-1997)</font> 											<li><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size="2">Avant-projet de passe &agrave; poissons au barrage de Lavey (VS/VD, 1995-1996)</font> 											<li><font size="2" face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular">Evaluation des risques li&eacute;s &agrave; la d&eacute;valaison des poissons dans les turbines du barrage de Chancy-Pougny (GE, 1995)</font> 										</ul> 									</td> 	</tr> 	</table> 	<font face=arial size=1><center> 	<p><a href=lacs.html>[lacs & rivi&egrave;res]</a> <a href=hydro.html>[hydro&eacute;lectrique]</a> [poissons / p&ecirc;che] <a href=etudesimpact.html>[&eacute;tudes d'impact]</a> <a href=ecobilans.html>[eco-bilans]</a>   	<br><a href=iso14000.html>[ISO 14000]</a> <a href=naturels.html>[milieux naturels]</a> <a href=paysage.html>[paysage / territoire]</a> <a href=faune.html>[faune / gestion]</a>     <br><a href=graviere.html>[gravi&egrave;res]</a> <a href=dechets.html>[d&eacute;chets]</a> <a href=zonesagric.html>[zones agricoles]</a>  	</font></center>	 	</td>  	 </tr>   </table> <!-- End main table -->   </body> </html>    
