Winter Pond Care

As winter approaches it is important to prepare you pond for this seasonal change in conditions (depending on your climate zone). In the warmer western areas of Oregon ice is not an issue as much as in the higher elevations of Eastern Oregon.

However leaves that have accumulated from the many deciduous trees that grow in many of the western valleys are a problem.
Leaves that fall to the bottom of the pond decompose adding to ammonia, lowering ph and KH to dangerous levels and sometimes releasing toxic Hydrogen Sulfide. The pond keeper needs to either cover the pond with netting or remove leaves before winter sets in.
Also as temperatures fall below 60 F (15 C) in the pond I feed every other day or less, depending on fish feeding habits. Below 50 F (10 C), I do not generally feed as fish become much less active as their metabolism slows down.
It should also be noted that the protein content of the food should decrease as well while wheat and wheat germ content increase.

Here is a recent news article from Salem Oregon about preparing for winter:
Owners of koi prepare the hardy, colorful fish and their ponds for winter

In regions where icing will occur it is important in winter to keep at least a small section of your pond open for proper exchange of gasses (O2, CO2), if water can still flow into the pond through a water or aeration device, that will work. A minimum depth of 24” will provide enough water space under the ice for fish to hibernate.
An aeration device or pump placed about midway from the surface/bottom that circulates upward generally will keep an area of the pond surface free of ice and allow proper gas exchange. In deep ponds over 5-6 feet (1.75 -2 meters), thermal layering, called thermoclines, may exist. This acts as sort of an “inversion layer” similar to how smog gets trapped in the air in Los Angeles. This traps CO2 and Hydrogen Sulfide near the bottom which is dangerous to fish and in this case you need to add water pumps or aeration devices at the bottom.

For more pond information including Winter Care as well as more resource links as well, please visit this site:

A Clear Pond; Pond Information

Shark washes up on Oregon Coast

Dolphin, shark, other 'oddities' wash up along Oregon Coast

By ANTONIA GIEDWOYN, kgw.com Staff

Last week’s stormy weather at the Oregon Coast led to some unusual finds on the beach over the weekend, Seaside Aquarium staff said Tuesday.

Beachcombers found a dolphin, a porpoise, a shark and a rare fish.

“All died recently, and thanks to enormous west winds, blew up onshore with the storms,” said aquarium spokeswoman Tiffany Boothe.

The long-beaked dolphin was the first dolphin that aquarium staff have ever seen wash up in the area, even though they are common to Oregon coastal waters, Boothe said. It measured about 5 and 1/2 feet long.


The salmon shark was only about 3 and 1/2 feet long and is a type of shark often mistaken for great whites, although great whites are larger by a foot or more in length.

Someone also reported finding a mola mola -- ocean sun fish -- which are rarely spotted on the north coast.

The washed-up porpoise measured about 2 and 1/2 feet long.

Another beachcomber, Terry Morse of Newport, found a bunch of odd jellyfish, some of which were still alive, he discovered, when he took them back home and put them in a petri dish to study them under a microscope. They began swimming again when put in sea water.


COMMENTS:

Not much I can say here except for this is a sad but interesting story

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Male fish gives birth at Oregon Aquarium

Unusual male fish gives birth at Oregon Aquarium

By TERESA BELL / kgw.com

SEASIDE, Oregon – At the Seaside Aquarium, dozens of fish have been born from what many would consider quite an unlikely source: a male fish.


A baby pipefish.
Pipefish are long, rounded creatures related to the sea horse, that have an unusual life process. The female pipefish has the eggs originally, but transfers them to the male. He fertilizes them, and then he is the one responsible during the remaining gestation period.

"We are not sure how long the baby pipefish will be on display," said Tiffany Boothe, an education specialist with the Seaside Aquarium. "The aquarium has had pipefish in the past give birth, but because of their size and fragility when born, we have had no luck keeping them alive. We are going to try a slightly new tactic, though we are not too optimistic that it will work. Because of this we also plan on releasing some of the babies into a local estuary."


The new tactics involve leaving them where they are this time, Boothe said. In the past, they've tried a variety of approaches to help these babies survive, mostly involving taking them out of the tank and putting them in another by themselves. They've tried variations on that theme, such as a tank with filtered water, without filtered water, and other combinations.

"Instead of putting them in another tank, we'll just do nothing," Boothe said. "We'll leave them in there, because that tank is a lot like the environment they come from, with its fauna and so on. It's also got raw water pumping in there, so there's lots of phytoplankton."


In natural habitat, pipefish live in shallow water among eelgrass, algae, and other types of vegetation in estuaries and bays.


Boothe said they're expecting even more babies. With the eggs of as many as three females involved, it could mean there are dozens more waiting to be born, all inside the male in various stages of gestation.


"Spawning for pipefish begins in May when the female pipefish passes her eggs to the male," Boothe said. "The courtship between the male and female tends to be an elaborately choreographed display, where female and male entangle themselves around each other over and over again. They look as if they are dancing. The male may receive eggs from two to three different females and can carry up to 225 eggs."


COMMENT: I have kept Pipefish, however I have never bred them (I have bred their cousins the seahorse). These are interesting although delicate fish to keep in an aquarium. I only recommend them in a non-competitive reef or nano-reef aquarium as most fish will out compete them for food and make them nervous. I have generally fed Brine Shrimp and Mysis Shrimp and have also kept them in tanks with a lot of hiding places including live rock and caulerpa algae.
"Marine Aquarium Basics" can provide more information and links to keeping these and other marine/saltwater fish.

Rare Ratfish, Oregon

Rare Ratfish found on Oregon Shores dies -

Associated Press and KGW.com Staff


SEASIDE, Ore. - A rare fish from the deep that had the Seaside Aquarium buzzing today has died.

The ratfish, described as both cute and bizarre, and usually lives too deep in the ocean to show up on land.

But a group of kids from Oregon City brought in a three-foot-long Spotted Ratfish over the weekend. They had found it on the southern cove area of Seaside -- still alive.

Aquarium spokeswoman Tiffany Boothe says the spotted ratfish's technical name is 'Hydrolagus colliei,' and is named ratfish for its rat-like appearance.

Scientists were not sure if the fish would survive the night. It had a sore on it's right fin that was making life difficult. Boothe said "at one point, it got stuck upside down and couldn't right itself."

On Monday Boothe said the fish didn't make it through the night. She said "the fact that he was already washed up on shore was not a good sign to begin with."

The aquarium was keeping the fish in a freezer in case a local school wanted to disect it to try and figure out how it died.

The ratfish exists between southeast Alaska and Baha, California. But sometimes it is found in shallower waters off the Oregon coast.

The aquarium says sometimes fishermen bring the ratfish when they accidentally catch them. But Boothe says it's really very rare they wash up on the beach.