Health - Fishery News

President Obama

You'll never guess what the Yanks are trying to put through the senate...

For non-commercial pleasure fishing, both coastal and inland - a much reduced fishing season combined with quotas on catches! If this goes through it will effectively mean no fishing matches.

Zambezi hit by killer fish disease

A KILLER disease is decimating fish stocks in the Zambezi River Valley, threatening the food security and livelihoods of rural populations in an area shared by seven countries, FAO warned today. You can read the full article on FISHupdate.com

Mechanical Injury

This damage looks very similar to furunculosis, but this is predator damage or mechanical injury.

As you can see there is no secondary infection and was there an aeromonas infection.

A wound this size would have entered the gut wall and fish would have been completely immobile. This particular fish was caught by an angler.

K.H.V. May 2009 Southern London.
These are classic pictures e.g. sunken eyes and the fish appears to be rotting away.
Once seen never forgotten.





I.S.A. Outbreak
A second site of ISA has been found in Shetland in the control area. 1st Feb 2009

I.S.A has broken out in a salmon farm in the Shetlands. This farm has been empty since 21st December 2007 and other sites, including Burra one of which has been empty for six weeks. This has been confirmed as of 6th Jan 2009.

Spawning Damage
A young male fish badly damaged through spawning - the fungus seen on body is down to failure of the immune system and aeromonas hydrofiller infection from wound to anal fin. See the spawning page for more information.
Heavy Rain
During periods where the weather brings heavy rain, you should keep your aerator on at all times, as the rain can lower the pH and thus lower the oxygen levels. Rain on water does not oxygenate it.

November 2007 - K.H.V. Outbreak in Berkshire See the news page

See our warning on filter containers on the filters page

August 2007

KHV is in Essex and Sussex fisheries. Managers should make sure all the anglers dip their footwear and nets prior to fishing.

See the map of outbreaks on the K.H.V. page.

Fish Injuries

The most common cause of injuries like this is spawning - most of these wounds heal themselves, but a spray of iodine would help.
When carp are found round the edges of the lake in this condition it's a combination of poor condition parasites/bacteria and the lake need attention, otherwise heavy losses may occur.
This is furunculosis
The most common course of damage like this is poor removal of hooks, allowing bacterial infection to enter the hook wound.
Due to lack of aeration and heavy water-bound sediments, too much ground bait and over stocking - hence poor condition.
When you let your lake get silted up, all you need is a spell of hot weather and you will lose all your fish, as this client did, through CO² build up i.e. a lack of oxygen.

This picture shows the problem you get when you allow home made boilies to be used on your fisheries. They go rotten inside the fish's gut and poison the blood stream.

Boilies should be seen by the owner and should be in sealed, recognized, manufacturer's packet or supplied by the fisheries manager. All others should be prohibited because you have no idea what ingredients have been used.

I've seen boilies which contain WD40, a freeing oil and other such stupid ingredients as fish attractants.

Note the red spots - classic sign of sepsis. The larger your carp, the more of this rubbish they will eat, so there's a higher degree of contamination. Once the guts are infected death is a certainty.

(Please note: this particular fish has not died of boilies contamination).

Many fish at this time of year die through spawning, but it must be said, many more die from infected wounds when spawning as the water quality is so poor, system are full of water bound sediments. This is poor water management and for no other reason.