darkside 61 Posted December 9, 2023 Share Posted December 9, 2023 We were out at the Barrier last night. A trailer boat was anchored and diving for crays next to Bowling Alley Bay. Can't imagine how they will achieve anywhere near 100% compliance 1 Quote Link to post Share on other sites
aardvarkash10 960 Posted December 10, 2023 Share Posted December 10, 2023 On 9/12/2023 at 9:50 AM, CarpeDiem said: Its primary mechanism of reproduction is asexual, which is caused by fragmentation. Sexual reproduction causes the Caulerpa plant to die completely. The plant has to be already on its way out for it to initiate sexual reproduction. Our Caulerpa is young healthy vibrant... That's ironic. Exact opposite of humans. Quote Link to post Share on other sites
motorb 26 Posted December 17, 2023 Share Posted December 17, 2023 On 9/12/2023 at 7:27 PM, darkside said: We were out at the Barrier last night. A trailer boat was anchored and diving for crays next to Bowling Alley Bay. Can't imagine how they will achieve anywhere near 100% compliance Just flew over yesterday and it's not just tinnies and fizz boats... 1 Quote Link to post Share on other sites
aardvarkash10 960 Posted January 25 Share Posted January 25 https://www.nzherald.co.nz/northern-advocate/news/new-zealand-first-dredging-machine-tackles-invasive-caulerpa-in-bay-of-islands/CRPX5A5IMVCO3MEIKARNH3Q4PI/ 1 Quote Link to post Share on other sites
Zozza 293 Posted January 25 Author Share Posted January 25 1 hour ago, aardvarkash10 said: https://www.nzherald.co.nz/northern-advocate/news/new-zealand-first-dredging-machine-tackles-invasive-caulerpa-in-bay-of-islands/CRPX5A5IMVCO3MEIKARNH3Q4PI/ Looks promising... Quote Link to post Share on other sites
Addem 95 Posted January 25 Share Posted January 25 Let's hope... Glad to see that, despite our collective cynicism about govt agencies they have been working on something. Now about the Hauraki gulf... Quote Link to post Share on other sites
khayyam 68 Posted January 26 Share Posted January 26 Saw that in omakiwi last week. Wasn't sure whats going on! Glad they're doing something, given the CAN. There were 50 boats on opunga in 20-30 SE with omakiwi off limits. Quote Link to post Share on other sites
K4309 260 Posted January 26 Share Posted January 26 44 minutes ago, khayyam said: Quote Link to post Share on other sites
K4309 260 Posted January 26 Share Posted January 26 52 minutes ago, khayyam said: Saw that in omakiwi last week. Wasn't sure whats going on! Glad they're doing something, given the CAN. There were 50 boats on opunga in 20-30 SE with omakiwi off limits. It appears the CAN allows you to anchor in Omakiwi in that situation. Same as the Gt Barrier CAN Anchoring is permitted without the need to acquire a permit for the following situations: (1) In the event of an emergency that: c. no other alternative safe sheltering locations or mooring can be easily acquired. Te Rāwhiti Caulerpa Controlled Area Notice 2023 (mpi.govt.nz) The CAN also states you don't need a permit to leave the area if you anchored under Schedule 2, 1c. The whole idea of these can's is to stop the spread. Most of the enthuses is on not taking actual caulerpa out, then, on not taking seafood etc and on cleaning fishing, diving gear and what not. Just anchoring is going to have negligible effect. And the CAN allows you to do that in certain situations. Not being able to easily acquire a safe anchorage is grounds for anchoring inside the CAN. Quote Link to post Share on other sites
K4309 260 Posted January 26 Share Posted January 26 On 18/12/2023 at 11:17 AM, motorb said: Just flew over yesterday and it's not just tinnies and fizz boats... Why do you think they aren't allowed there? Quote Link to post Share on other sites
khayyam 68 Posted January 26 Share Posted January 26 19 hours ago, K4309 said: It appears the CAN allows you to anchor in Omakiwi in that situation. Same as the Gt Barrier CAN Anchoring is permitted without the need to acquire a permit for the following situations: (1) In the event of an emergency that: c. no other alternative safe sheltering locations or mooring can be easily acquired. Te Rāwhiti Caulerpa Controlled Area Notice 2023 (mpi.govt.nz) The CAN also states you don't need a permit to leave the area if you anchored under Schedule 2, 1c. The whole idea of these can's is to stop the spread. Most of the enthuses is on not taking actual caulerpa out, then, on not taking seafood etc and on cleaning fishing, diving gear and what not. Just anchoring is going to have negligible effect. And the CAN allows you to do that in certain situations. Not being able to easily acquire a safe anchorage is grounds for anchoring inside the CAN. Yeah I'm aware. Depends on one's definition of "easily" and "safe". A roll, for example, is uncomfortable but probably safe? In any event, people seemed not to be using that clause. Quote Link to post Share on other sites
motorb 26 Posted January 27 Share Posted January 27 On 26/01/2024 at 3:24 PM, K4309 said: Why do you think they aren't allowed there? Because they were anchored within the CAN area.... the thing they aren't allowed to do in the area they're doing it.... Quote Link to post Share on other sites
K4309 260 Posted January 28 Share Posted January 28 2 hours ago, motorb said: Because they were anchored within the CAN area.... the thing they aren't allowed to do in the area they're doing it.... If you read the CAN notice, you will see that it says you can anchor in the CAN area. Under certain circumstances. It isn't possible to know that by flying over and going tut tut. It is getting to the point of spreading mis-information on this forum that you can't anchor in a CAN area. You can. 1 Quote Link to post Share on other sites
motorb 26 Posted February 12 Share Posted February 12 https://www.rnz.co.nz/news/ldr/508904/70-boats-illegally-anchored-in-bay-of-islands-caulerpa-ban-area-over-summer In the news again.... 1 Quote Link to post Share on other sites
waikiore 399 Posted February 13 Share Posted February 13 They need to get over it , all the fan worm has disappeared from my Westhaven pier? 2 Quote Link to post Share on other sites
motorb 26 Posted February 13 Share Posted February 13 1 hour ago, waikiore said: They need to get over it , all the fan worm has disappeared from my Westhaven pier? Fanworm is a complety different pest, and since the freshwater cleared most of it out in Jan 2023, in 2024 I've noticed it making a comeback on U pier. It's a shame to see it growing again without intervention since nature gave the marina a big hand in managing it there. Quote Link to post Share on other sites
Lindsay 31 Posted February 24 Share Posted February 24 This looks very promising https://www.rnz.co.nz/news/national/510071/northland-s-fight-against-invasive-seaweed-boosted Quote Link to post Share on other sites
motorb 26 Posted February 24 Share Posted February 24 6 hours ago, Lindsay said: This looks very promising https://www.rnz.co.nz/news/national/510071/northland-s-fight-against-invasive-seaweed-boosted That massive drege tool certainly seems to be our best bet to actually work at at scale needed, but the photo of sizable weed mass washing up on the beach at blind bay isn't encouraging Quote Link to post Share on other sites
Zozza 293 Posted February 24 Author Share Posted February 24 Rather than stupid xxx xxxx the country can't afford -- put a couple hundred $million into building a dozen of these machine and just go to town on this caulerpa. It sure beats trying to enforce stupid anchoring bans which no ones takes notice of anyway https://www.rnz.co.nz/news/ldr/508904/70-boats-illegally-anchored-in-bay-of-islands-caulerpa-ban-area-over-summer 3 Quote Link to post Share on other sites
K4309 260 Posted February 24 Share Posted February 24 Certainly the suction dredge addresses the primary issue of caulerpa in that it smoothers everything. Obviously these are trials at the moment, but you would expect that if you physically remove the smothering caulerpa the rest of the benthic environment will bounce back. It may be like kaykuya (spelling, the grass that grows well in coastal environments). Near impossible to permanently eradicate, but perfectly manageable if you give it a regular mow and weed-eat it once a month. There is nothing technically complex or particularly expensive about the dredge. A long reach digger, probably 20t at least, a road sweeper head, geo-cloth bag, some regular de-watering suction pumps and pipes, and of course a barge. I don't know what the capital value of that stuff is, but it appears the operating cost is moderately low. One or two staff, a support boat (for getting to the barge) and diesel. I'd like to think the $5mil would get two or three of these barges going. Start doing a circuit of known spots and 'mow down' the caulerpa. My fear is the $5mil will be used for hui, community consultation, cultural impact reports and what not. We can only hope the dredging is deemed effective, or at least cost-effective (assuming it is moderately cheap) and they push on with it, along with lifting the porous anchoring bans which are ineffective and have a number of exclusions anyway. 1 Quote Link to post Share on other sites
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