If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Fish pass
Hello all,
Has anybody heard of a fish pass to help fish cross a highway? What can be done when a highway project cuts a stream, to maintain connectivity between fish populations? I'm looking for information (personnal experience, paper references, links...)about necessary features for such a fish pass to be effective. Thanks in advance for any help regards Dom. |
#2
|
|||
|
|||
Fish pass
DomDomken wrote:
Hello all, Has anybody heard of a fish pass to help fish cross a highway? What can be done when a highway project cuts a stream, to maintain connectivity between fish populations? I'm looking for information (personnal experience, paper references, links...)about necessary features for such a fish pass to be effective. Thanks in advance for any help regards Dom. If it crosses a stream aren't they supposed to put in a culvert/bridge to allow the stream to continue flowing, if they don't it will cause flooding. -- Don`t Worry, Be Happy Sandy -- E-Mail:- Website:- http://www.ftscotland.co.uk IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667 #Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled ICQ : 41266150 |
#3
|
|||
|
|||
Fish pass
In article , DomDomken
wrote: Hello all, Has anybody heard of a fish pass to help fish cross a highway? What can be done when a highway project cuts a stream, to maintain connectivity between fish populations? A highway can only cross a stream by a bridge or a ford. Neither impedes fish. If there is an associated wier or other obstruction that might need a fish pass. In some cases a very small stream may be bridged by putting it into a culvert or even a pipe. Fish don't mind unless there is also a valve or wier. If a highway does just block a stream it pretty soon becomes a dam and unless built as a dam the stream will find it's own way round, through or over. Cheerio, -- |
#5
|
|||
|
|||
Fish pass
"Sandy" wrote in message ...
DomDomken wrote: Hello all, Has anybody heard of a fish pass to help fish cross a highway? What can be done when a highway project cuts a stream, to maintain connectivity between fish populations? I'm looking for information (personnal experience, paper references, links...)about necessary features for such a fish pass to be effective. Thanks in advance for any help regards Dom. If it crosses a stream aren't they supposed to put in a culvert/bridge to allow the stream to continue flowing, if they don't it will cause flooding. -- Don`t Worry, Be Happy Sandy Yes, of course. The stream will be channeled beneath a VERY wide landfill. That's why fish transit is uncertain, and needs to be favoured... Dom. |
#6
|
|||
|
|||
Fish pass
DomDomken wrote:
"Sandy" wrote in message ... DomDomken wrote: Yes, of course. The stream will be channeled beneath a VERY wide landfill. That's why fish transit is uncertain, and needs to be favoured... Dom. How did they get permision to land fill a watercourse? Anything toxic in the landfill will leach into the stream and be carried throughout the system. Secondly they will have to have settlement lagoons below the site for any silt and debree to settle in before the stream enters the main watercourse if they don't the silt could desimate the vertibrates and suffocate the fish. I'm not an expert, this is just my opinion. -- Don`t Worry, Be Happy Sandy -- E-Mail:- Website:- http://www.ftscotland.co.uk IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667 #Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled ICQ : 41266150 |
#7
|
|||
|
|||
Fish pass
In article , Sandy
wrote: DomDomken wrote: "Sandy" wrote in message ... DomDomken wrote: Yes, of course. The stream will be channeled beneath a VERY wide How wide - more than a kilometer? If the culvert is very long it will have to be large enough for personnel to get in and clear any blockages. If it's that big then fish will get through from time to time. There might be a problem with migratory fish runs in very low water but low water itself would be the greater problem. landfill. That's why fish transit is uncertain, and needs to be favoured... How did they get permision to land fill a watercourse? Anything toxic in the landfill will leach into the stream and be carried throughout the system. I doubt it's that sort of landfill. The rules in Belgium are more or less the same as those here. Secondly they will have to have settlement lagoons below the site for any silt and debree to settle in before the stream enters the main watercourse if they don't the silt could desimate the vertibrates and suffocate the fish. But this may have to be done for a while at construction time. Cheerio, -- |
#8
|
|||
|
|||
Fish pass
Derek.Moody wrote:
In article , Sandy Secondly they will have to have settlement lagoons below the site for any silt and debree to settle in before the stream enters the main watercourse if they don't the silt could desimate the vertibrates and suffocate the fish. But this may have to be done for a while at construction time. Cheerio, Sorry, that's what I meant. I remember when they were constructing one of the bridges on the M74 they had to do that to stop the silt getting into the river Clyde. -- Don`t Worry, Be Happy Sandy -- E-Mail:- Website:- http://www.ftscotland.co.uk IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667 #Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled ICQ : 41266150 |
#9
|
|||
|
|||
Fish pass
"Sandy" wrote in message ... How did they get permision to land fill a watercourse? Anything toxic in the landfill will leach into the stream and be carried throughout the system. It was allowed under the NeoCon presumption that pollution is food. |
#10
|
|||
|
|||
Fish pass
Vendicar Decarian wrote:
"Sandy" wrote in message ... How did they get permision to land fill a watercourse? Anything toxic in the landfill will leach into the stream and be carried throughout the system. It was allowed under the NeoCon presumption that pollution is food. Yeah, like the one I read the other day about a leaking domestic drinking water pipe that leaked int a stream and all the bi-valves downstream in the vicinity of the leak died, the ones above the leak were unaffected (don't know where I read that). Shows you what chlorine and floride must be doing to us and the environment. -- Don`t Worry, Be Happy Sandy -- E-Mail:- Website:- http://www.ftscotland.co.uk IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667 #Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled ICQ : 41266150 |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How to catch fish all day | Bob La Londe | Bass Fishing | 9 | May 25th, 2004 05:46 PM |
Scientific Research confirms that fish feel pain: INTENSIVE FISH FARMING | John | UK Coarse Fishing | 7 | October 7th, 2003 03:00 PM |
Scientific Research confirms that fish feel pain: INTENSIVE FISH FARMING | John | General Discussion | 3 | October 6th, 2003 09:50 PM |
Scientific Research confirms that fish feel pain: INTENSIVE FISH FARMING | John | UK Sea Fishing | 3 | October 6th, 2003 09:50 PM |
TR for the Bighorn Micro Clave and a Trip to Chas's | Warren | Fly Fishing | 102 | September 29th, 2003 03:19 PM |