Please select your home edition
Edition
Mackay Boats 728x90 TOP

Latest updates on Southern Resident Killer Whales J50 and J35

by NOAA Fisheries 23 Aug 2018 06:02 PDT
Southern Resident Killer Whales © NOAA Fisheries

Biologists are mobilized and responding to an emaciated and ailing three year-old killer whale (born December 2014), J50 also known as Scarlet, of the critically endangered Southern Resident population.

J50 appears lethargic at times with periods of activity, including feeding. Scientists observing her agree that she is in poor condition and may not survive. Responders from NOAA Fisheries and partner organizations are exploring options ranging from no intervention to providing medical treatment, potentially delivered in a live Chinook salmon, which has never before been attempted in the wild. Potential treatment may include medication and nutrition.

J35, an adult female also known as Tahlequah, who carried her dead calf for over two weeks, is also being monitored.

J50 Updates

August 20: Response teams spent about three hours on Saturday (8/18) monitoring J50/Scarlet as J Pod returned to the Salish Sea on the way towards San Juan Island. Biologists aboard a SeaDoc Society vessel reported J50/Scarlet actively socializing with the rest of the pod, a hint that her condition may be improving slightly. She fell behind the pod as the whales swam east, but a University of Washington (UW) team saw her rejoin her mother (J16/Slick) and sister (J42/Echo) to forage near Hannah Heights on the west side of San Juan Island.

The UW team also collected two fecal samples from the group. On Sunday (8/19) J Pod was seen heading west, back toward open ocean. The plan going forward is to administer another dose of antibiotic through a dart and, if possible, a second dart with dewormer to reduce parasitic worms, known to be harmful in emaciated marine mammals like J50/Scarlet, and that were found in the recent fecal samples from a group of three whales including J50. The veterinary team believes another dose of antibiotic remains the priority to treat potential infection since the first dart on 8/9 delivered only half a dose. Darting a swimming killer whale that has thick skin, particularly on fins and flukes, from a rocking boat is challenging.

To ensure that J50/Scarlet receives the medication, veterinarians may switch to a collared needle with a ridge that holds it in place long enough to deliver the full dose. This type of dart is commonly used to treat wildlife, such as elephants, and will fall out in time. See new photos from Saturday (8/18) here

August 17: Test results from the health samples collected from J50/Scarlet are starting to come in from several top laboratories around the country. A fecal sample collected last weekend from a group of three J Pod whales (J16/Slick, J42/Echo, and J50/Scarlet), showed high levels of Contracaecum, a nematode parasite that is commonly found in killer whales and other marine mammals.

The worm is not usually a problem in healthy animals. However, in animals that are emaciated or are otherwise compromised, the parasite can penetrate the stomach lining, introducing bacterial infection to the bloodstream, or it can bore into internal organs. While we cannot be sure the sample came from J50/Scarlet, the veterinary team has updated her treatment priorities to include antibiotics and a dewormer. Both have proven successful and safe in other cetaceans. The treatment should help J50/Scarlet by reducing bacterial and parasitic burdens on her system so she can start regaining the weight she has lost. The whales remain in open waters off the west side of Vancouver Island, beyond the reach of the response teams.

Read more here

Related Articles

Rolex Fastnet Race IRC Four preview
The pinnacle of grass roots sailing has 97 entries The very largest yachts, including the 100ft Ultim foiling trimarans and 60ft IMOCAs are an essential part of the spectacle of the Fastnet Race, however a critical element in the race's enduring appeal is that this is predominately a grass roots event. Posted today at 7:36 pm
Long Beach Olympic Classes Regatta day 2
Classic Long Beach conditions return The weather conditions at the Long Beach Olympic Classes Regatta shifted noticeably today, delivering the classic Long Beach breeze that many expect from this world-class venue. Posted today at 6:44 pm
NYYC International Women's Championship update
Third group of skippers includes Nicole Breault, Dominique Proyoveur, Laura van Veen While there is no nationality requirement for the crews that will compete in the 2026 New York Yacht Club International Women's Championship, a number of teams are embracing the opportunity to wave their respective national flags at the debut edition. Posted today at 5:42 pm
New Class 40 campaign for Global Solo Challenge
Ronnie Simpson aims to be first American to win singlehanded, non-stop around world race American sailor Ronnie Simpson has launched a new ocean racing campaign to compete in the Global Solo Challenge race; a singlehanded, non-stop around the world sailing race that begins and ends in Vigo, Spain in 2027. Posted today at 5:10 pm
The Sardinia Cup set to return in 2026
The competition will make its long-awaited return to the waters of the Costa Smeralda The Yacht Club Costa Smeralda (YCCS) is pleased to announce the return of the Sardinia Cup, one of the Club's most iconic regattas and a renowned international sailing event. Posted today at 3:39 pm
How inclusive is sailing?
Largest global survey aims to find out The Magenta Project has today launched the 2x25 global survey, marking the start of the most ambitious equity and inclusion review ever undertaken in sailing and the wider marine industry. Posted today at 1:18 pm
Aegean 600 - Snakes and ladders in extremis
Event was the sixth in the IMA's annual Mediterranean Maxi Offshore Challenge If the previous two Aegean 600s were among the most brutal offshore races on record with storm force winds and violent gusts, conversely this year's fifth edition of the anti-clockwise lap of the Aegean Sea was largely the lightest. Posted today at 12:14 pm
Is Your Boat Ready for Racing Season?
Rooster has gathered some of the best videos and blogs to make boat care easier From fine-tuning your rigging to quick repairs before a race, keeping your boat in top condition doesn't need to be complicated. ? Posted today at 11:00 am
2025 Long Beach Olympic Classes Regatta kicks off
The first week of the OCR includes five Olympic classes The highly anticipated 2025 Long Beach Olympic Classes Regatta officially commenced on Saturday, 12 July, marking the beginning of Olympic campaigns since the venues were announced. Posted today at 8:14 am
How Transpac's first finishers earned the podium
The first teams to reach Diamond Head are as varied as they are inspiring From a maxi-sled to a doublehanded keelboat and a 68-foot catamaran, the first teams to reach Diamond Head are as varied as they are inspiring. Posted today at 3:35 am
Barton Marine Pipe GlandsArmstrong 728x90 - HA Foil Range - BOTTOMSwitch One Design