Asian clams

Post Options Post Options   Likes (0) Likes(0)   Quote Pcj Quote  Post ReplyReply Direct Link To This Post Topic: Asian clams
    Posted: 04 Jun 2023 at 6:27pm
Pcj View Drop Down
Titanium
Titanium
Avatar

Joined: 27 Nov 2019
Location: papakura
Status: Offline
Points: 3302
Here we go again. Where did they come from and how did they get in the Waikato river??


The freshwater gold clam (also known as the Asian clam, or by its scientific name Corbicula fluminea) is native to eastern Asia but is also widely established in North America, South America and Europe. 

Overseas, these shellfish are a pest species because they reproduce rapidly and can clog up water infrastructure such as hydro-electricity plants, municipal water supply and irrigation systems. They are also potentially a threat to native species, as in large populations they consume a lot of plankton. 

Initial checks have found the freshwater gold clam present over a 45-kilometre stretch of the Waikato River, from 1.5km upstream of Bob’s Landing, just upstream of Lake Karāpiro, and downriver to Hamilton.

Mr Anderson says the plan now is to search further, both within the Waikato River and in other rivers and lakes that are linked through human activity.

"Times up"
Back to Top
Post Options Post Options   Likes (2) Likes(2)   Quote gurnard Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 2023 at 7:00pm
gurnard View Drop Down
Gold
Gold
Avatar

Joined: 09 Jan 2007
Status: Offline
Points: 743
Saw this in the news last week.

Very worrying. You cannot even eat the damn things either as they are full of toxins or something. I imagine if they're already over a 45km stretch, and given how fast they multiply, that it's too late.
Back to Top
Post Options Post Options   Likes (0) Likes(0)   Quote Pcj Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2024 at 7:09am
Pcj View Drop Down
Titanium
Titanium
Avatar

Joined: 27 Nov 2019
Location: papakura
Status: Offline
Points: 3302
Back to Top
Post Options Post Options   Likes (0) Likes(0)   Quote Mc Tool Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2024 at 6:06pm
Mc Tool View Drop Down
Silver
Silver


Joined: 23 Dec 2021
Location: Riverton
Status: Offline
Points: 261
 I got told by someone at fish and game that they suspect that they came in  in ballast tanks and other marine vehicles imported 2nd hand from the states.
 Maybe we could teach Koi carp to eat them Smile
I wish I was young again .... Id be heaps smarter than this time
Back to Top
Post Options Post Options   Likes (0) Likes(0)   Quote dalgo Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 2024 at 11:06pm
dalgo View Drop Down
Platinum
Platinum
Avatar

Joined: 22 Oct 2008
Location: Auckland
Status: Offline
Points: 1256
These clams were originally found in Lake Karapiro last year and it is thought they were introduced by wake boats (boats that hold water as ballast). However they may have been present for some time before they were discovered.

Full details on the MPI site:
Back to Top
Forum Jump
Forum Permissions View Drop Down


This page was generated in 0.566 seconds.

Fishing Reports Visit Reports

Saltwater Fishing Reports
Northland Fishing Report - 16/05/24

Trophy fish on offer With the temperatures dropping and the days getting shorter, you could... Read More >

16 May 2024
Saltwater Fishing Reports
Tauranga Fishing Report - 16/05/24

Tarakihi and snapper on the chew Things are starting to be a bit quieter with... Read More >

16 May 2024
Saltwater Fishing Reports
Raglan Fishing Report - 16/05/24

Fresh bait key to bigger fish The run of good autumn fishing continues with a... Read More >

16 May 2024
Saltwater Fishing Reports
Bay of Islands Fishing Report - 16/05/24

Straylining effective Team Zeus has been out there doing it again! Photos of huge crayfish,... Read More >

16 May 2024
Fishing bite times Fishing bite times

Major Bites

Minor Bites

Major Bites

Minor Bites