Global opvarmning...WTF???

Unusually warm waters and a common weather occurrence may be to blame for massive fish die-offs in Massachusetts and New Jersey this week.

If the whole concept of warm water killing fish seems a little fishy to you, read on.

Ocean water temperatures offshore of the eastern U.S. coast in the Atlantic have been running several degrees above normal so far this summer.

While a common phenomenon, known as upwelling, was producing pockets of cool weather in coastal areas of New England and the mid-Atlantic through midsummer, a recent sudden shift of surface winds, known as "onshore flow," brought unusually warm waters close to the coast.

In both cases, the species of fish that died in Massachusetts and New Jersey was menhaden. This sudden onshore flow may have brought a rise in water temperatures that was too fast for menhaden to handle.

Experts have noted that this species of fish, commonly used as bait, is rather sensitive to changes in temperature.

Pogies swim to the surface of the ocean as they are caught in nets by fishermen along a cove in West Bath, Maine, on Thursday, Aug. 14, 2008. Fishermen use the fish as bait for lobstering. Back in the 1980s it was a common occurrence for vast schools of menhaden to be chased into various Maine coves along the shoreline by bluefish. Marine officials reported that the hundreds of thousands of fish would severely deplete the oxygen in the water, causing them to die along with other aquatic life. (AP Photo/Pat Wellenbach)
Typically, during mid-August, water temperatures along the Massachusetts coast average 68 to 72 degrees. In the Delaware Bay, water temperatures average 74 to 78 degrees. Water temperatures in the vicinity at the time of the discovery of the dead fish were 72 to 76 degrees and 81 to 85 degrees respectively. However, temperatures in the shallows could have been even several degrees higher for a multi-hour period.

This NOAA graphic shows what sea surface temperatures averaged during August 8 through 10, 2010, in degrees Celsius.
Warm water holds less oxygen than cool water.

Experts have been speculating that the fish may have been forced close to shore by predators such as bluefish, dolphins, sharks or seals. These species are more active in warm water.

In shallow waters, temperatures may have further spiked during the day from intense sunshine and sea breezes drawing in warm surface water.

Massive numbers of the fish moving into the shallows in turn could have caused oxygen levels to drop below the critical point for fish to survive.

It is possible the sudden shift in the winds also brought a sudden change in the PH levels (alkaline vs. acidic).

While many fish can adjust to gradual changes in PH, sudden changes could be fatal to certain species.

Experts in both cases stated that the fish were probably dead a few days before they washed up on the beaches along the Delaware Bay and Massachusetts.

The Department of Environmental Protection tested the waters and found no evidence of elevated levels of bacteria, algae and chemicals, or reduced oxygen.

This added more mystery as to why they died, as conditions undoubtedly changed a bit from when they were killed.

Rainfall over the land can cause nutrient-rich water to wash out through bays and estuaries, contributing to spikes in algae and bacteria. However, in both cases, there was virtually no rain inland to run off, eliminating the algae and bacteria factor.


The weather pattern over the next seven to 10 days will allow for more swings and spikes in temperature caused by a warm onshore flow verses cool upwelling.

While these occurrences go on all the time throughout the year, it seems the unusually warm waters may be the critical component, and not microbes or pollution, in both cases of the fish kills in Massachusetts and New Jersey recently.
www.accuweather.com/blogs/news/story/35477/was-weather-to-blame-for-massa.asp


Det var da heldigt, for BP, at det ikke er olie eller alle de tonvis af kemikalier, de har dumpet for at opløse olien, der er skyld i at fiskene dør...
Jeg gad godt vide hvor lang tid der går, før en dansk avis får den igennem google.translate og bringer den "gode" nyhed?



ManBearPig is real...
www.youtube.com/watch?v=zfGmf8L3-z0

Skulle man nu ikke lige vente og se hvor mange fisk der døde pga. den ulykke.
Mig bekendt så der ikke fundet store forekomster af døde fisk.

Udover det så har fiskeriet jo været lukket i lang tid.
Også i de perioder hvor de små fiskeunger er begyndt at vokse sig store.

Så i det lange løb har det jo nok haft en positiv indvirkning på fiskebestanden i de berøte områder

TL;DR, men altid nice med noget South Park..

"Half man, half bear and half pig" :)

@Pantherdk

"Så i det lange løb har det jo nok haft en positiv indvirkning på fiskebestanden i de berøte områder"

Du har set billeder af tidligere olieudslip, ikke?

*SIGH*

@ottomann

Jo da.

Men du glemmer en ting.
Det her olieudslip skete langt ude på havet.
Det er ikke en Tanker der forliste på stranden.

Som de folkder ved lidt om det her så siger de at 75% af olien enten er opløst eller samlet op.

Så lad os nu lige vente med at male fanden på væggen

Olien er da ikke mindre giftig, fordi den er opløst i så små dråber at man ikke kan se den.

De folk du mener ved noget, er betalt af de samme, som har betalt for den artikel jeg gengiver her i tråden.

...og før du begynder med at, opløsningsmidlet ikke er giftigt, så undersøg lidt selv.

Har ikke sagt opløsningsmidlet ikke er potentielt giftigt.

Men vi mennesker er altså gang på gang god til at forudse alle mulige ting istedet for lige at afvente lidt og se hvordan det gik..

Tjernobl området er i min verden et godt eksempel.
Idag lever der store dyrbestande der og planter gror fint.

Så måske vi engang imellem skulle slå koldt vand i blodet inden vi amok.

Udover det så har BP jo altså sat kassen af til at ryde op efter ulykken.

Olie og uran...æbler og appelsiner.

Du kan da seriøst ikke sammenligne?

Mener bare man skal lige se tiden lidt an INDEN man konkludere noget.

Pantherdk er spot on.

Tjernobyl er et fremragende eksempel. Alle ved at de bedste økologiske grøntsager kommer fra dette område.

Olieudslip har en positiv indvirkning på fiskebestanden, og atomulykker kan skabe naturområder med store dyrbestande og planter som gror fint.

Ottomann og andre skal holde op med at være så negative.

@tower
LoL ;o)


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Jeg gad godt vide, hvor meget partistøtte BP har givet til Obama, siden de kan få ham til at svømme i den mexicanske gulf?
...at de så har fået det til at lyde som om han støtter turismen, er godt spin.
politiken.dk/udland/article1036788.ece

Når vi taler om Chernobyl, så er det her ret cool. En pige kører gennem området på motorcykel og tager billeder på vejen. Porno hvis du er til spøgelsesbyer og grå deppressiv sovjetbetonbyggeri.

www.kiddofspeed.com/chapter1.html

Der er et billede af nogle vilde ponyer, men ellers synes jeg ikke det ligner en økologisk succeshistorie.