Donate Bitcoin

Donate Paypal


PeakOil is You

PeakOil is You

THE Oceans & Seas Thread pt 3

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 29 Nov 2016, 15:48:15

no .....and I prefer to get my information from the experts .....but thanks for posting about the possible exception which fuels your denial
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 29 Nov 2016, 15:57:52

@ pstarr.....and if you had looked at the last link I posted you would see that the vast majority of marine life is at risk of , at the very least , rapid decline......

the WHO estimate marine protein equates to between 13 and 16 % of total global protein................


http://www.who.int/nutrition/topics/3_f ... ndex5.html consumed by humans
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby rockdoc123 » Tue 29 Nov 2016, 16:44:05

Already preempted you RockDoc. (see my previous post) Once again you twist the truth with the best of them


Yeah right. Exactly where did I twist the truth. Clearly you know nothing about taxonomy or how it relates to corals.

The first 'corals' appeared in the mid-Triassic. During the Triassic-Jurassic extinction event, a time of high ocean acidity and atmospheric CO2, reef development collapsed for millions of years, and resumed again with new coral families in the Jurassic once CO2 came back down.


It all depends on what you are referring to on a Taxonomic level. The Order Scleractinia of which modern extant Families and Generic levels of corals are members survived the Triassic/Jurassic extinction. The commonality within the Order is they are all calcium carbonate secretors. And that is the important point when it comes to looking at survival in warm or colder waters and varying levels of PH. The Family Acroporidae which includes the modern Genus Acropora has been around since the Jurassic and has survived higher and lower temperatures than current and more acidic waters. Choosing to just look at Generic or Specific levels in an argument ignores the ability of organisms within the same Order or Family to diversify through time. As well blaming the lack of coral growth on high CO2 is a bit of a stretch given it was much higher during the Jurassic and Devonian when carbonate secreting corals were widespread.

The skeletons of corals are made of calcium carbonate which dissolves in conditions of high acidity.

Ocean waters have never been acidic they are currently quite alkaline. Throughout the last 200 million years they have never dropped below 7.5 PH, 7.0 being neutral.

The precursors of the corals we have today evolved in the mid-Miocene and have NEVER BEFORE seen high ocean acidity or CO2 levels higher than current levels


Sorry incorrect. Mean surface PH in the Paleogene was ~7.8 and did not rise above 8.0 until the start of the Neogene and is currently at 8.1. See Figure 1 from:

Ridgwell A and Schmidt D, 2010. Past constraints on the vulnerability of marine calcification to massive carbon dioxide release. Nature Geoscience, 3, p 196-200

As to what you mean by pre-cursor are you refering to the Generic level? If so why? The entire Family (back to Jurassic) and indeed Order (back to Triassic) were carbonate secretors and they certainly endured both higher temperatures and higher CO2 levels.
User avatar
rockdoc123
Expert
Expert
 
Posts: 7228
Joined: Mon 16 May 2005, 02:00:00

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 29 Nov 2016, 17:21:08

@ pstarr.....if you knew anything .....OK lets start again....... fish are among the most efficient converters of feed to protein .....along with chickens .....particularly eggs


http://www.skretting.com/en-AU/faqs/why ... livestock/
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 29 Nov 2016, 17:49:11

@ pstarr my post was in reply to your suggestion that I should stop eating fish......ie fish supplies a significant % of global protein .....and does so efficiently....and the "wild" catch is at risk as the marine food web breaks down.....is that simple enough for you?
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby Plantagenet » Tue 29 Nov 2016, 19:22:41

Huge parts of the Great Barrier Reef in Australia have just died due to global warming

Corals dead at Great Barrier Reef

In Australia, the Great Barrier Reef (GBR) also saw its worst bleaching event on record. There, 93 percent of corals are reported to have experienced bleaching. Meanwhile, about 50 percent of corals have died in the northern section of the GBR. In the media, a controversy has raged over whether or not this event is the start of the great reef’s swansong. To be clear, the GBR was not killed off by the most recent large bleaching event. But it was dealt a very severe blow.

A global coral die-off is happening very quickly. Killing off most of the corals in the world's oceans at the same time the Arctic Ocean Sea Ice melting shows the global impact of global warming. :?
hall of shame
People who buy new cars and then cry crocodile tears over climate change. The manufacture of a typical new car emits ca. 16 tons of CO2 and a new EV is actually much worse since the battery also has to be manufactured, resulting in a total carbon footprint of ca. 30 tons of CO2
User avatar
Plantagenet
Expert
Expert
 
Posts: 22790
Joined: Mon 09 Apr 2007, 02:00:00
Location: Alaska (its much bigger than Texas).

Re: THE Oceans & Seas Thread pt 3

Unread postby Plantagenet » Tue 29 Nov 2016, 19:47:29

pstarr wrote:...dead coral. But that is all. What the "report" does not show is CAUSE. Could it be sheep shit


No. It can't be sheep shit.

Coral bleaching isn't caused by sheep shit.

Coral bleaching is caused by warming ocean waters. And the ocean is warming due to global warming.

Next question please. Or if you don't have any more questions could you just post more photos from the Ms. Reef contest?

THX.
hall of shame
People who buy new cars and then cry crocodile tears over climate change. The manufacture of a typical new car emits ca. 16 tons of CO2 and a new EV is actually much worse since the battery also has to be manufactured, resulting in a total carbon footprint of ca. 30 tons of CO2
User avatar
Plantagenet
Expert
Expert
 
Posts: 22790
Joined: Mon 09 Apr 2007, 02:00:00
Location: Alaska (its much bigger than Texas).

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 29 Nov 2016, 22:33:57

very few sheep in coastal Queensland

https://www.daf.qld.gov.au/animal-industries/sheep
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby dohboi » Sat 10 Dec 2016, 01:02:14

https://www.rt.com/news/369685-80-quake ... M.facebook

Tsunami warnings after 7.8 quake strikes off Solomon Islands’ coast
User avatar
dohboi
Harmless Drudge
Harmless Drudge
 
Posts: 18458
Joined: Mon 05 Dec 2005, 03:00:00

Re: THE Oceans & Seas Thread pt 3

Unread postby Newfie » Sat 10 Dec 2016, 12:19:47

kiwichick wrote:@ pstarr my post was in reply to your suggestion that I should stop eating fish......ie fish supplies a significant % of global protein .....and does so efficiently....and the "wild" catch is at risk as the marine food web breaks down.....is that simple enough for you?


KC,
the problem, among many, is fish stocks are collapsing. We are eating it all.

Harvesting is efficient to the point of extinction.
User avatar
Newfie
Forum Moderator
Forum Moderator
 
Posts: 13248
Joined: Thu 15 Nov 2007, 03:00:00
Location: Between Canada and Carribean

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Sun 11 Dec 2016, 00:16:46

@ pstarr....thanks for the laugh.....you obviously know nothing about Australia.....but if you actually look at the map you posted you might get it ........you made my partner laugh as well.....after nearly dropping his can of beer....very funny
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

Re: THE Oceans & Seas Thread pt 3

Unread postby kiwichick » Tue 13 Dec 2016, 02:40:28

@ pstarr...yes ...exactly ....why would you want to know anything about what you are posting

clue; the sheep are not on the seaward side of the GD range ......hope that helps!!!
User avatar
kiwichick
Intermediate Crude
Intermediate Crude
 
Posts: 2267
Joined: Sat 02 Aug 2008, 02:00:00
Location: Southland New Zealand

PreviousNext

Return to Environment, Weather & Climate

Who is online

Users browsing this forum: No registered users and 3 guests