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Sydney Harbour productivity (Read 15522 times)
pjb05
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Re: Sydney Harbour productivity
Reply #30 - Jun 30th, 2013 at 6:24pm
 


"He describes one of Australia's most polluted fishing spots (perhaps the most polluted), where the fish are too toxic to eat, as a great spot to fish. That's pretty much the definition of spin PJ".

Contrary to FD's spin, you can actually eat fish from Sydney Harbour:

http://www.dpi.nsw.gov.au/fisheries/recreational/info/sydney-closure



Previous test results have revealed elevated levels of dioxins in fish and crustaceans across Sydney Harbour, including Parramatta River and other connected tidal waterways. A ban was consequently placed on commercial fishing in 2006 as a precautionary measure.

Recreational fishing in the Harbour has not been banned, but fishers are urged to follow dietary advice on the consumption of seafood from the Sydney Harbour, Parramatta River and other connected tidal waterways. Fishers can also continue to practise catch and release. Based on advice from an expert panel, the Government is recommending that:

No fish or crustaceans caught west of the Sydney Harbour Bridge should be eaten. You should release your catch.
For fish caught east of the Sydney Harbour Bridge generally no more than 150 grams per month should be consumed.
Testing of popular species has allowed for more accurate dietary advice.
The table below provides advice on the maximum consumption of single species.

Recommended maximum intake based on eating a single species caught east of the Sydney Harbour Bridge. 
Species  Number of 150 gram serves  Amounts per month 
Prawns*  4 per month  600 g 
Crab  5 per month  750 g 
Bream  1 per month  150 g 
Flounder  12 per month  1800 g 
Kingfish  12 per month  1800 g 
Luderick  12 per month  1800 g 
Sand Whiting  8 per month  1200 g 
Sea Mullet  1 every 3 months  50 g 
Silver Biddie  1 per month  150 g 
Silver Trevally  5 per month  750 g 
Tailor  1 per month  150 g 
Trumpeter Whiting  12 per month  1800 g 
Yellowtail Scad  8 per month  1200 g 
Squid  4 per month  600 g 
Dusky flathead  12 per month  1800 g 
Fanbellied leatherjacket    24 per month  3600 g 

Important Note: This advice is provided if one single species is being eaten. For example eating 150 grams of Bream and 600 grams of prawns in one month would exceed the recommended intake. Eating 300 g prawns, 300g sand whiting and 300g yellowtail scad in one month would equal the recommended maximum intake.



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freediver
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Re: Sydney Harbour productivity
Reply #31 - Jun 30th, 2013 at 6:29pm
 
Quote:
For fish caught east of the Sydney Harbour Bridge generally no more than 150 grams per month should be consumed.


150 grams eh? From the "clean" end of the harbour....

So how many fish would that be PJ?
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Re: Sydney Harbour productivity
Reply #32 - Jun 30th, 2013 at 6:34pm
 
freediver wrote on Jun 30th, 2013 at 6:29pm:
Quote:
For fish caught east of the Sydney Harbour Bridge generally no more than 150 grams per month should be consumed.


150 grams eh? From the "clean" end of the harbour....

So how many fish would that be PJ?



If you look at the individual species quite a few you can eat more than 1800g a month. Do you eat that much fish a month FD? I don't.

More spin eh FD?
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Re: Sydney Harbour productivity
Reply #33 - Jun 30th, 2013 at 6:39pm
 
I don't believe it's easy to catch fish in Sydney Freediver. It's the most fished place in Australia. People eat the fish they catch out of there  too. The Hawkesbury River system to the north is a realively clean system and that fishes well too. And it has commercial fishing. It's just a fishy part of the world. Sydney sits geographically in an area which gets northern and southern species. It's an area of overlap. The harbour has a lot of structure both natural and man made. It's deep and has a lot of food. It's a damned good spot. It's not bad for a hard fished place.

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Re: Sydney Harbour productivity
Reply #34 - Jun 30th, 2013 at 6:58pm
 
Quote:
If you look at the individual species quite a few you can eat more than 1800g a month. Do you eat that much fish a month FD? I don't.


Do you realise that you cannot reach the limit for each species? One small serve of sea Mullet and you will put yourself over the limit if you eat anything else from the harbour for three months. I probably do eat that much at the moment. I am making my way through a large spanish, plus I eat other seafood on top of that. But in any case, having to consult a table for each different species I catch to reduce the risk of poisoning myself and figuring out the combined effect from different species (a table produced by the same government who tried to cover it up and then spun it as a good quality "great spot to fish") -would put me off eating anything at all from there. Not that I need a government warning to tell me that Sydney Harbour is not the cleanest fishery around. If people refusing to eat the fish because they don't like being poisoned up to the legal limit makes it productive in your opinion, go for it.
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Re: Sydney Harbour productivity
Reply #35 - Jun 30th, 2013 at 7:09pm
 
] Quote:
If you look at the individual species quite a few you can eat more than 1800g a month. Do you eat that much fish a month FD? I don't.


Do you realise that you cannot reach the limit for each species?

Yes, seeing I made sure I included that footnote.

One small serve of sea Mullet and you will put yourself over the limit if you eat anything else from the harbour for three months.

You picked out the most contaminated species in the whole table, and never mind that anglers hardly ever catch sea mullet. It seem to escape you that for most of the species listed the allowances are quite high - more than most people would eat in a month.

I probably do eat that much at the moment. I am making my way through a large spanish, plus I eat other seafood on top of that. But in any case, having to consult a table for each different species I catch to reduce the risk of poisoning myself and figuring out the combined effect from different species (a table produced by the same government who tried to cover it up

I thought you said the problem was known by the public for years?

and then spun it as a good quality "great spot to fish")

The anglers surveyed said it was a good place to fish.

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Re: Sydney Harbour productivity
Reply #36 - Jun 30th, 2013 at 7:12pm
 
Quote:
I thought you said the problem was known by the public for years?


It has been polluted for over a century. I don't need a German toxicology report to tell me that. The government intervention was in response to a growing public outcry. It was not the cause of it.

Quote:
It seem to escape you that for most of the species listed the allowances are quite high - more than most people would eat in a month.


I can get through 600 grams of prawns in one session. And don't tell me fishermen rarely eat prawns.
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Re: Sydney Harbour productivity
Reply #37 - Jun 30th, 2013 at 7:20pm
 
#36 date=1372583570] Quote:
I thought you said the problem was known by the public for years?


It has been polluted for over a century. I don't need a German toxicology report to tell me that. The government intervention was in response to a growing public outcry. It was not the cause of it.

Well first you were saying it was that well known and that anglers were releasing most of their catch accordingly - then you said it was all covered up.

Quote:
It seem to escape you that for most of the species listed the allowances are quite high - more than most people would eat in a month.


I can get through 600 grams of prawns in one session. And don't tell me fishermen rarely eat prawns.

They usually buy them FD.
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Re: Sydney Harbour productivity
Reply #38 - Jun 30th, 2013 at 8:32pm
 
Tell me PJ, if it turned out that your favourite fishing spot was a nuclear waste dump, but the government said it was OK for you to be there fishing for 6 hours every month* before receiving a dangerous dose of radiation (after dragging their heels to even acknowledge there is a problem), would you fish there for 6 hours a month?

If the fisheries minister came out 2 years later with "and the opinion survey says it is a top fishing spot, really good quality" would you take it at face value, and even read more into it than what he actually said?

* provided you don't get any Xrays, or fly anywhere, or receive any other unknown radiation doses, or be more susceptible than most people or radiation poisoning, or the wind is blowing from the southwest...
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Re: Sydney Harbour productivity
Reply #39 - Jun 30th, 2013 at 8:42pm
 
freediver wrote on Jun 30th, 2013 at 8:32pm:
Tell me PJ, if it turned out that your favourite fishing spot was a nuclear waste dump, but the government said it was OK for you to be there fishing for 6 hours every month* before receiving a dangerous dose of radiation (after dragging their heels to even acknowledge there is a problem), would you fish there for 6 hours a month?

If the fisheries minister came out 2 years later with "and the opinion survey says it is a top fishing spot, really good quality" would you take it at face value, and even read more into it than what he actually said?

* provided you don't get any Xrays, or fly anywhere, or receive any other unknown radiation doses, or be more susceptible than most people or radiation poisoning, or the wind is blowing from the southwest...



Are you on drugs FD?
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Re: Sydney Harbour productivity
Reply #40 - Jun 30th, 2013 at 8:49pm
 
How many fish from Sydney Harbour do you eat?
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Re: Sydney Harbour productivity
Reply #41 - Jun 30th, 2013 at 8:53pm
 
freediver wrote on Jun 30th, 2013 at 8:49pm:
How many fish from Sydney Harbour do you eat?


Not many as I mainly fish in the Georges River/ Botany Bay.
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Re: Sydney Harbour productivity
Reply #42 - Jun 30th, 2013 at 8:57pm
 
Suppose you lived in the area and the fish were as easy to catch as you make out. How do you think you would end up going compared to the table of what is safe?
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Re: Sydney Harbour productivity
Reply #43 - Jun 30th, 2013 at 9:04pm
 
freediver wrote on Jun 30th, 2013 at 8:57pm:
Suppose you lived in the area and the fish were as easy to catch as you make out. How do you think you would end up going compared to the table of what is safe?


I told you I don't eat more than 1800g a month (like most Australians). It's then a realtively simple matter of avoiding the few higher risk species (that are actually catchable) and it's easy to stay well under the limit.
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Re: Sydney Harbour productivity
Reply #44 - Jun 30th, 2013 at 10:06pm
 
How do you think you would end up going compared to the table of what is safe?

1.8kg a month works out to 60 grams a day on average. And that is for the (very few) "safer" species. You would not have to eat fish very often (for a fisherman) to push that limit.
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