UPDATE, 11:12 a.m., ET: It's the middle of the night in Japan, and the process of sorting the remaining dolphins won't start again until reportedly about 7 a.m. local time (5 p.m. ET). CNN has just covered the story, as has Discovery News. For the most frequent updates, be sure to continue to watch Sea Shepherd's Facebook page, or follow them on Twitter. And check in here.

UPDATE, 8:00 a.m., ET: Cove Guardians report that so far a total of 25 dolphins have been taken from the water and loaded onto trucks. One dolphin selected for captivity did not survive this process. Around 200 dolphins remain trapped in the shallow waters of the cove.

UPDATE, 8:45 p.m., ET: Continue to watch Sea Shepherd's livestream for the latest updates (Warning: Images may be graphic). We'll follow up in the morning with the best news coverage of the event. If you want to get involved, please scroll to the bottom of this post for our suggestions.

UPDATE, 8:15 p.m., ET: The skiffs continue to capture the dolphins to be sold off. For more news coverage, here's NowThisNew's report, and check out Jane Velez-Mitchell's HLN piece here.

UPDATE, 6:30 p.m., ET: Several skiffs full of dolphins have left the cove, shuttling the dolphins -- including a rare, albino dolphin -- off to be sold into captivity.

UPDATE, 5:30 p.m., ET: The roundup of the dolphins began at around 5 p.m. ET. Watch The Sea Shepherd's live-streaming video right here.

As of this morning, around 250 wild bottlenose dolphins have been corralled and are currently being held captive behind nets in Japan's infamous Taiji cove. Within hours, dolphin trainers will begin the process of selecting juveniles to transfer into captivity -- after which, fishermen will slaughter most of the dolphins that remain.

According to Sea Shepherd's Cove Guardians, reporting from the scene, this dolphin pod is the largest in several years to be driven in by deafening "banger boats" to the Taiji's harbor for the annual dolphin drive hunt, subject of Academy Award-winning documentary "The Cove."