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Seaside Aquarium - (09/03/2021 06:26:40 pm)
It's time again, to Treasure the Beach! Tomorrow is our monthly beach cleanup. The cleanup goes from 9:00 a.m. to 11:00 a.m. Pick up your beach cleaning supplies at the end of 2nd Ave. right next to the Aquarium. See you tomorrow!
Seaside Aquarium - (08/31/2021 01:23:28 am)
A 43-foot humpback whale has washed ashore near Ocean Park, Washington. A necropsy will be scheduled for later on this week, however since this whale has been dead for quite sometime, determining the cause of death is unlikely.
Seaside Aquarium - (08/27/2021 09:22:52 pm)
Just a friendly reminder, we will be closed tomorrow, Saturday, August 28th for our annual Employee Appreciation Day. We will be open on Sunday from 9:00 a.m. to 5:00 p.m.
Seaside Aquarium - (08/25/2021 11:01:15 pm)
Have you had a chance to visit the puffins at Haystack Rock in Cannon Beach? If not, there is still time but not much. Any day now the puffins nesting on Haystack Rock will depart for the open ocean where they spend the winter. The puffins are most active first thing in the morning. So, grab your binoculars and head on down before it's too late.
Seaside Aquarium - (08/24/2021 06:33:10 pm)
Our rubescens octopus is hiding more than just herself... A couple days ago we noticed that she laid eggs! She laid them inside of the barnacle shell she calls home and you can only see them when she is cleaning them. It will take about 4 to 6 weeks before they hatch. As larvae, they prefer to feed on hermit crab larvae which are not easy to come by, so we will be releasing the babies into the intertidal zone as soon as they hatch.
Seaside Aquarium - (08/17/2021 08:58:26 pm)
We came across a very sad scene this morning. Two pelicans were entangled in fishing line. While one was still alive, it appeared that the other pelican had drown and died. We were able to cut the fishing line and separate the pelicans, however the fishing line was embedded deeply into the live pelican’s wing, and he was unable to fly. Luckily, we were able to safely capture the injured pelican, which was taken to the Wildlife Center of the North Coast, a license nonprofit animal rehab center. If all goes well, this pelican will get the care he needs and released once healthy enough to fend for itself. For more information on the Wildlife Center of the North Coast visit: Wildlife Center of the North Coast – non-profit wildlife rehab facility (
Seaside Aquarium - (08/16/2021 12:03:55 am)
Thousands of live sand dollars are washing ashore on the south end of Seaside Beach. It appears that they are washing in during the afternoon high tides and getting stranded along the high tide line. They are still alive when stranded but are unable to make it back to the water once the tide recedes. This is resulting in them drying up and dying. At this time, we do not know what has caused this, and these types of incidents usually have several contributing factors. We are also unaware if this is an isolated incident or if this is happing on other beaches. It is hard to convey how many sand dollars on washing in. Clink here to see a short video: Sand dollars are related to sea urchins. The outside of their shell is covered with millions of tiny spines which look like ‘fuzz’ or hair. These spines aid in the movement and feeding of the sand dollar. On the underside, in the center of the sand dollar is its mouth. A sand dollar’s diet consists of plankton, which they break down with their five small teeth. Each tooth closely resembles the shape of a bird, and many people refer to them as ‘doves’. Sand dollars are found worldwide and there are many different species, each with their own unique characteristics. How can you tell if a sand dollar is alive? The best indication would be if the sand dollar is still ‘fuzzy’. You may want to leave the ‘fuzzy ones on the beach, as they can smell quite badly if taken home.
Seaside Aquarium - (08/13/2021 03:49:06 am)
Good night Seaside.
Seaside Aquarium - (08/09/2021 06:09:25 pm)
We had quite the weekend but the highlight was all of the cute dachshunds! Thanks for visiting.
Seaside Aquarium - (08/05/2021 08:14:14 pm)
Treasure the Beach, beach cleanup is fast approaching. Help us keep Seaside Beach clean and our ocean's healthy by volunteering. The beach cleanup is this Saturday and goes from 9:00 a.m. to 11:00 a.m. Grab your supplies in front of the Aquarium, then stay and enjoy the Prom Centennial Celebrations.
Seaside Aquarium - (07/18/2021 08:49:14 pm)
Just in time for the end of Shark Week! Our sweet, female swell shark laid eggs! Swell sharks are bottom dwelling sharks. Females lay two green/amber colored egg casings. There is only one embryo per egg casing. A single yolk sack supplies the embryo with nutrients while it develops. It will be about 12 months before they are ready to hatch.
Seaside Aquarium - (07/15/2021 12:47:32 am)
A large fish, rare to the Oregon Coast, was found on Sunset Beach this morning. The 3.5 foot, 100 lbs Opah was reported to the Seaside Aquarium at 8:00 a.m. After seeing photographs of the unusual fish they quickly responded and recovered the fish. It created quite the stir at the Aquarium where folks were encouraged to come take a look at this beautiful and odd looking fish. Always on the lookout for new educational opportunities, the fish will be frozen until the school year starts. Partnering with the Columbia River Maritime Museum's educational director, Nate Sandel, one lucky school group will get the chance to dissect this large fish. While rare this far north it is not unheard of. According to OregonLive a 97 pound Opah was caught 37 miles off of the Columbia River Mouth in 2009. Opahs can grow to over 6 feet and weigh over 600 pounds. They inhabit pelagic (meaning they live in the open ocean), tropical and temperate waters where they feed on krill and squid.
Seaside Aquarium - (07/06/2021 10:21:45 pm)
We have very exciting news! The Guadalupe fur seal we recovered is doing great! The entanglement had not gotten to the point where it was embedded into his skin, which means he did not have any external injuries. Though he is a little under weight, he is very active and alert. He was flown down to a rehab center in California for further observation. While there, they will fatten him up before his release. A huge thank you to everyone involved in his rescue, recovery, and release!
Seaside Aquarium - (07/03/2021 10:52:28 pm)
A Guadalupe fur seal, a threatened species, was reported as entangled to the Seaside Aquarium at 11:00 a.m. on July 3rd and was resting on the beach when reported. When the aquarium came on scene the fur seal had crawled onto an offshore rock, responders had to wait for the tide to go out before attempting to capture the animal. Once the rock became accessible they were able to safely get to the animal, capture it, and place it in an animal carrier for transport. The fur seal will be transported to a licensed rehabilitation facility for a full veterinary health assessment, disentanglement, and stabilization. If all goes as planned, the animal will be released back into the ocean once it is healthy. The fur seal was originally reported on July 1st but before the aquarium could respond a well-meaning member of the public attempted to remove the entanglement and the animal fled back into the ocean. The aquarium would like to remind everyone that even if it seems like a good idea, it is best to let trained responders deal with marine mammal emergency situations. If you see a marine mammal trapped in netting the best thing you can do for the animal is give it plenty of space, keep dogs away, and call the West Coast Marine Mammal Stranding Network at 1-866-767-6114. Seaside Aquarium partners with Portland State University and NOAA's West Coast Marine Mammal Stranding Network to respond to strandings on the Oregon coast. Since 1995 Seaside Aquarium and Portland State University have spearheaded the Southern Washington Northern Oregon Marine Mammal Stranding Network, a collaboration of experts and volunteers to respond to stranded marine mammals along the southern Washington and northern Oregon Coast. Through this program, locally stranded Guadalupe fur seals are able to be recovered and transported to rehabilitation centers. For more information on Guadalupe fur seals visit:
Seaside Aquarium - (06/29/2021 07:38:59 pm)
Have you ever seen a tufted puffin? If not, here is your chance.
Seaside Aquarium - (06/22/2021 09:05:13 pm)
Walking along the shoreline you might come across some of these guys. They are a species of salp called, Salpa fusiformis. What is a salp? In order to understand the salp you must first understand the tunicate. Tunicates belong to the same phylum as vertebrates. Though as adults they do not have a backbone, developing larvae posses a tail, a dorsal nerve cord, and a dorsal stiffening structure (not composed of bone) called the notochord; because of this tunicates are thought to be more closely related to vertebrates such as fish and people. So what is a salp? A salp is a pelagic tunicate. Meaning they are tunicates that drift in the mid-water of the ocean. They move by means of jet propulsion, and feeding is accomplished by pumping plankton-laden water through the body where a mucous net is used to extract food particles. They can be found individually or in large aggregations consisting of millions of individuals.
Seaside Aquarium - (06/19/2021 07:46:46 pm)
Last but not least, Scully! Scully is turning 23 today! She is our second oldest seal and our most vocal. She will tell you what she wants and when she wants it, luckily it's always just fish!
Seaside Aquarium - (06/13/2021 09:08:34 pm)
We had the pleasure of introducing the seals to the Rose Festival Princesses. We are not sure who loved who more! Congratulations ladies!.
Seaside Aquarium - (06/10/2021 07:30:45 pm)
Happy birthday Shireen! Shireen and her beautiful brown eyes turn 15 today. If you are around stop in, wish her a happy birthday, and maybe toss her a fish or two!
Seaside Aquarium - (06/08/2021 09:08:30 pm)
Did you meet Barnacle Bill? An elephant seal, dubbed Barnacle Bill became quite popular when he decided to haul out on multiple northern Oregon beaches over Memorial Day weekend, filling both visitors and locals with concern for his wellbeing. Since he created quite the stir, we thought we would give you all an update on his travels and current condition. “Barnacle Bill” first showed up on Falcon Cove beach on May 17th. While he was lively, he did not look so good. He was going through his annual molt which is a process where he sheds his old coat of fur and grows a new one. During this process large hunks of skin will often come off along with the old fur. This can create large sores and open wounds, but it is a natural process. He also had patches of pelagic gooseneck barnacles growing on his back and flippers, hence his new name “Barnacle Bill”. When molting, elephant seals haul out. The saltwater irritates their open wounds and they have a hard time regulating their body temperature. Being out of the water allows them to warm up and get some well needed rest. This is exactly what Mr. Bill was doing. He spent a few days at Falcon Cove before continuing his tour of the north coast. His next stop was Arch Cape. He arrived in Arch Cape on May 20th but by May 23rd he headed down toward Rockaway and spent a few nights on the more secluded, Nedonna Beach. Looking for a little more attention, Barnacle Bill set his sights for Cannon Beach and during the busy Memorial Day Weekend camped out right in front of Haystack Rock. Staff from the Haystack Rock Awareness Program did a wonderful job watching over him, making sure people and dogs did not disturb his peace. They also educated people about him, alleviating fears that he was dying and needed help. After the busy holiday weekend Barnacle Bill headed back south where he discovered Manzanita. By this time some of his open sores from the molting process had started to heal and was beginning to look more like a “normal” seal again. On June 1st Barnacle Bill left the beach for good. Over the two weeks that he visited we received a lot of calls from concerned citizens and with the help of State Parks and the Haystack Rock Awareness Program we were able to educate people about the natural process of molting and help give him the space and rest he needed to heal and get better. We are so thankful for all our partners and this wonderful community.
Seaside Aquarium - (06/07/2021 10:43:51 pm)
Shark Week Seaside Aquarium Style: This week the Seaside Aquarium partnered with the Columbia River Maritime Museum to give students an opportunity they will not soon forget. On Thursday, June 3rd Warrenton 8th graders participated in the dissection of a 3-foot salmon shark. The shark was already deceased when it washed ashore on the south end of Seaside Beach in October of 2020. They took measurements and samples of the shark’s liver and muscle which will be sent to the Hatfield Marine Science Center and used in further research. Another opportunity was afforded to Eisenhower Elementary School on Saturday, June 5th. This enthusiastic group of 5th graders dove right in to dissect a 7-foot broadnosed sevengill shark. Like the salmon shark, the broadnosed sevengill shark was deceased before washing ashore on the south end of Gearhart beach on March 31st, 2021. Both groups were amazing and engaged. It was a blast just to sit back and watch while these non-squeamish kids got a once in a lifetime hands on experience. They asked great questions, and everyone got their hands dirty. The dissections were led by Columbia River Maritime Museum’s educational director Nate Sandel, also known as “Nate the Great”. We will often get a call through the Marine Mammal Stranding Network when a shark is found dead on the beach and while they are obviously not marine mammals, we do our best to try to respond and document the event. If the shark is in good enough condition, it will be recovered and frozen in the hopes that it can be used for educational experiences just like this.
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Seaside Aquarium, 200 North Prom, Seaside, Oregon 97138 Tel: (503) 738-6211.