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Author: Subject: what the heck? Dead fish litter our beaches!!!
55steve
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[*] posted on 7-19-2011 at 08:40 PM


It's a member of the cusk eel family - seems there are 240 different models throughout the world so an exact ID is difficult.

Here is a link to some info:

http://en.wikipedia.org/wiki/Cusk-eel

My friend is a fish wholesaler and markets a cusk eel sold as kingclip - it's delicious!

[Edited on 7-20-2011 by 55steve]
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Skipjack Joe
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[*] posted on 7-20-2011 at 08:09 AM


Quote:
Originally posted by oladulce
Shari mentioned their freezing ocean conditions and it's the same here even farther South on the Pacific side of central Baja Sur. After several days of muy feo winds last week the water temp plummeted from the mid 70's to it's current 59°- 60°.


Sounds as though strong upwelling currents brought all those deep sea critters up.
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classicbajabronco
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[*] posted on 7-20-2011 at 08:35 AM


We still have dead fish carcasses littering the eastcape beaches.

It's hard to keep the dogs out of them, every 5-10 feet they find another fish. Lots of dead Morey Eels.
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shari
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[*] posted on 7-20-2011 at 01:03 PM


Juan thinks it may be a red tide even though the water is very cold...the visibility is poor and water is kinda murky red...it seems like a small current that is moving north...everyone is pretty worried about the abalone....tons of halibut being caught now off the beach by the way...the little pier is packed!!!



for info & pics of our little paradise & whale watching info
http://www.bahiaasuncion.com/
https://www.whalemagictours.com/
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BajaBlanca
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[*] posted on 7-20-2011 at 02:10 PM


wow... I haven't heard anything and haven't been to the beach in over a week or so, altho' we were at the launching area near the lagoon yesterday and I didn't see anything.

let me check it out and get back to you on this.

horrible .... really terrible ....





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ILikeMex
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[*] posted on 7-20-2011 at 02:27 PM


Upwelling of cold water from bottom of ocean to top would mean that the top warm water is going the opposite way and replacing the cold water below.
I wonder if this happens fast enough that the change of cold to warm/hat has caused these fish enough stress to kill them???
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[*] posted on 7-20-2011 at 02:50 PM


Dead zones are hypoxic (low-oxygen) areas in the world's oceans, the observed incidences of which have been increasing since oceanographers began noting them in the 1970s. These occur near inhabited coastlines, where aquatic life is most concentrated. (The vast middle portions of the oceans which naturally have little life are not considered "dead zones".) The term can also be applied to the identical phenomenon in large lakes.

Causes:
Aquatic and marine dead zones can be caused by an increase in chemical nutrients (particularly nitrogen and phosphorus) in the water, known as eutrophication. These chemicals are the fundamental building blocks of single-celled, plant-like organisms that live in the water column, and whose growth is limited in part by the availability of these materials. Eutrophication can lead to rapid increases in the density of certain types of these phytoplankton, a phenomenon known as an algal bloom. Although these algae produce oxygen in the daytime via photosynthesis, during the night hours they continue to undergo cellular respiration and can therefore deplete the water column of available oxygen.[citation needed] In addition, when algal blooms die off, oxygen is used up further during bacterial decomposition of the dead algal cells. Both of these processes can result in a significant depletion of dissolved oxygen in the water, creating hypoxic conditions. Dead zones can be caused by natural and by anthropogenic factors. Use of chemical fertilizers is considered the major human-related cause of dead zones around the world. Natural causes include coastal upwelling and changes in wind and water circulation patterns. Runoff from sewage, urban land use, and fertilizers can also contribute to eutrophication.Natural causes include coastal upwelling and changes in wind and water circulation patterns.
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Skipjack Joe
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[*] posted on 7-20-2011 at 04:11 PM


Upwelling always brings low oxygen water with rich nutrients to the surface. Usually that's a boon to marine life (as anyone can see at Asuncion) but under certain conditions it triggers blooms of dinoflagellates which further depletes the oxygen and makes it tough for the other critters.

Can't find the specifics of how things go bad. There must be some oxygen threshold that triggers the entire thing.
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BajaBlanca
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[*] posted on 7-20-2011 at 08:32 PM


dead fish on the beach here but not many .. one dead seal too
according to our guests who went walking on the beach this pm.





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EdZeranski
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[*] posted on 7-21-2011 at 10:16 PM


Call Art Bell...!~8^o

EdZ
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shari
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[*] posted on 7-22-2011 at 09:50 AM


hmmm...yesterday the ocean in san roque looked red and was very murky. Diving was called off today because of poor visibility (Juan is back on the rockpile!!)....so looks like Igor was correct and the cold water upwelling phenomenon caused some sort of algae bloom...but I dont think it's a red tide per se because no surface fish are dying. I did see a dead baby spotted seal on the beach yesterday but most likely unrelated...perhaps caught in a net....but holy mother of god the water is cold!!!



for info & pics of our little paradise & whale watching info
http://www.bahiaasuncion.com/
https://www.whalemagictours.com/
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