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10 killer whales caught this year by trawl vessels off Alaska, according to a federal fishery agency

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10 killer whales caught this year by trawl vessels off Alaska, according to a federal fishery agency


A federal fishery agency reported this week that 10 killer whales were caught in the gear of trawl net vessels fishing this year in the Bering Sea and North Pacific waters off the Aleutian Islands.

Only one was released alive, according to a brief Alaska NOAA Fisheries statement posted online. A team is analyzing data collected about the other nine whales to determine the cause of injury or death, and also to determine which stocks these whales belonged to through reviewing genetic information.

Killer whales have been entangled in trawl gear off Alaska in years past, but the numbers reported in 2023 are much higher.

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“The agency is working quickly to evaluate these incidents and will share findings as soon as possible, after all required analyses are completed,” the statement said.

The agency reported that another killer whale was entangled with longline gear set out by a vessel that a private vessel contracted to conduct a federal fishery survey in the Central Bering Sea. On June 7, a dead whale was observed caught up in gear, the statement said. NOAA Fisheries scientists were on board the survey vessel, which was designed to provide an assessment of black cod — also known as sablefish — populations, and that incident is also under review.

Bering Sea killer whales fall under the Marine Mammal Protection Act, which includes requirements for vessel owners or operators to report injuries or deaths.

All of the trawl vessels involved in the whale deaths this year were required to carry two federally contracted observers that collect information about the catch. Their observations about the killer whale have been submitted to the NOAA Fisheries team reviewing the incidents.

The whale encounters with trawl gear has been discussed on social media. Alaska NOAA Fisheries posted a statement Thursday headlined “Response to Recent Reports of Killer Whale Incidental Catches in Alaska.” The statement did not provide additional details about the incidents, including what types of trawlers encountered the whales, and an agency spokesperson didn’t respond to requests Friday afternoon for more information.

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In a written statement, the Groundfish Forum, a Seattle-based trawl fishery group, confirmed that member vessels were involved in at least some of the whale deaths as well as the one released alive.

Groundfish Forum members operate 19 vessels that net and process yellowfin sole, Pacific Ocean perch and other bottom dwell species.

“Our fleet is committed to finding solutions to this unprecedented challenge. We have invested in research activities to better understand the change in killer whale behavior and how to avoid them,” the statement said. “Vessels are experimenting with gear modifications that may prevent whales from entering the net.

For decades, killer whales have been drawn to fishing boats off Alaska. Longliners, which drop lines of baited hooks, have generated many of these encounter reports. The whales eat black cod, stripping them off of hooks, as they’re brought to the surface.

Sablefish longliners have tried many tactics to fend them off, including blasting heavy metal music from the decks. Some have switched to fishing with baited pots to keep them away.

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Trawlers also have had encounters with killer whales.

In 2020, two killer whales, a male and a female, died after being caught in Bering Sea flatfish trawl gear, according to a NOAA Fisheries document.

From 2014 to 2020, seven killer whales died or suffered serious injury due to encounters with all types of fishing gear, according to a federal study cited by the Groundfish Forum in the statement.

In recent years, Groundfish Forum trawler crews have encountered killer whales more frequently, and those contacts appear to have intensified this year.

“In 2023, our captains have reported an increase in the number of killer whales present near our vessels, where they appear to be feeding in front of the nets while fishing,” said the statement from the Groundfish Forum, which called this “new behavior” that hadn’t been previously documented.

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Megan Williams, a fishery scientist with the Ocean Conservancy, said killer whales are incredibly intelligent animals, and that “conflicts arising with trawl fisheries need to be addressed,” along with larger concerns about how to manage the Bering Sea more holistically.

“This may represent a conservation concern for killer whales,” said Williams, who studied killer whale interactions with Bering Sea fisheries for years. and noted that there are three broad ecotypes — fish-eaters, those that focus on marine mammal prey and a third group of which less is known.

In the North Pacific, adult killer whales are long-lived and reproduce slowly. The males can reach an age of at least 50 years and the females as old as 80, according to an Alaska Department of Fish and Game species profile posted online.

The fish-eaters feed on a wide variety of species, and large groups are often involved in hunting their prey. Typical dives last three to five minutes, but a lot is unknown about their diving behavior, according to the Department of Fish and Game document.

The NOAA and Groundfish Forum statements do not offer information on how the whales got caught in the nets. So, it is unclear whether they may have been low in the water column, or got entangled as the net was drawn to the surface.

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Groundfish Forum trawler operators are still trying to understand why they are encountering more killer whales.

For the GroundFish Forum fleet, one area of concern has been halibut that they incidentally bring up as bycatch as they target other species.

Longline fishermen report that whales have taken halibut from hooks.

The trawl-caught halibut might be an attractant to the killer whales because they are designated as a prohibited species and must be discarded after they are brought on board.

To try to improve halibut survival rates, crews sort some halibut on deck and toss them back to the sea. The Groundfish Forum statement said that is not done when killer whales are present. Instead, they are sorted out below deck, and discarded through chutes.

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Hal Bernton was a longtime reporter for The Seattle Times, and previously reported for the Anchorage Daily News and The Oregonian.





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Alaska

Sky Watch Alaska: planets align plus the aurora forecast

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Sky Watch Alaska: planets align plus the aurora forecast


ANCHORAGE, Alaska (KTUU) – This is a great time of year to do some star gazing. If you have clear skies in your part of Alaska, take the time to check out the night — and morning — sky.

After sunset, look toward the southwest. Saturn and Venus are snuggled up together (of course, they are more than 800 million miles apart) in the evening sky. They set at about 9:40 p.m. in Southcentral.

Before 9:40 p.m., you can see four planets with the naked eye — Saturn, Venus, Jupiter and Mars. Jupiter and Mars stick around through the morning. Mars is very close to the moon right now.

The Aurora forecast is fairly weak for the next few weeks. That’s not to say there won’t be the occasional burst but overall, solar activity is expected to be fairly low until the beginning of February.

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If you get great pictures of the planets, the sky, or the aurora, don’t forget to send them to Alaska’s News Source.

See a spelling or grammar error? Report it to web@ktuu.com



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Short-lived cold snap, with another warming trend this weekend

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Short-lived cold snap, with another warming trend this weekend


ANCHORAGE, Alaska (KTUU) – Temperatures across the state are cooling off, as our strong low from the weekend moves into the Chukchi Sea. This will set up for colder air to spread across the state this week, as another short-lived cold snap is expected. While some light snow is possible for the Interior, areas of the Slope and Western Alaska, Southcentral will stay on the drier side until the night. Meanwhile, Southeast will continue to hold onto moderate rain with gusty conditions.

SOUTHCENTRAL:

Temperatures this morning are 10 to 20 degrees colder than yesterday, as colder air has settled back into Southcentral. Clear skies and calm winds are evident this morning for parts of the region, with light snow falling through the Copper River Basin. We’ll see fairly quiet conditions today, outside of Kodiak which will see increasing snow and rain into the afternoon and evening hours. This comes as our next area of low pressure moves up the Alaska Peninsula.

We’ll see light snow spreading north across the Kenai overnight into Wednesday, with light snow expected through Prince William Sound. Several inches are likely through the Kenai and Chugach Mountains, with the pass expected to see a couple of inches of accumulation. Western parts of the Kenai will see the potential for a few inches, while inland areas of Southcentral largely stay dry. If Anchorage and surrounding locations see any accumulation, it’ll amount to less than half an inch.

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As snow tapers off Wednesday, we’ll see the return to colder and drier conditions into Thursday. Thursday may be the coldest day this week across the region, before another warming trend carries us into next week. Right now holding with snow through early next week, but areas of wintry mix are possible as highs warm above freezing.

SOUTHEAST:

The winter storm warning for Skagway and higher elevations expired at 6am this morning. While some light snow showers are still possible, little accumulation will occur the rest of the day. Scattered to periodic showers are occurring elsewhere across Southeast today, with less than half an inch of rainfall through the day. Any moisture available into the evening will see a transition to some wintry mix or snow into Wednesday morning. However, the better chance will come from another low lifting north into the panhandle. Any snow and wintry mix we see for Wednesday will primarily stay confined to the central and southern panhandle. We’ll see much cooler weather taking hold this week for Southeast.

INTERIOR:

Some areas of light snow are possible this morning, with less than half an inch to be expected. While temperatures are still warm for much of the Interior, highs will steadily fall throughout the day. Many areas will see lows bottom out near or below zero by tomorrow morning. We’ll see high pressure keep things dry and sunny through the next couple of days, with the coldest stretch of weather from Wednesday morning into Thursday morning. Much like the rest of the state will experience, a warming trend arrives this weekend. We’ll see the return to highs in the 20s, with some snow in the forecast. Be prepared for some gusty conditions through the Alaska Range by the close of this week.

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SLOPE/WESTERN ALASKA:

Areas of light snow and blowing winds will continue to impact the Slope, with a winter weather advisory remaining in place for the Central Brooks Range and the Beaufort Sea Coast. Both locations will see up to 1 inch of snow and gusty winds up to 35 mph. While the winter weather advisory will expire for the Central Brooks Range this afternoon, the Beaufort Sea Coast will see the alert continue into Tuesday evening. Snow and blowing snow will be the primary impact today, with a return to colder weather through the rest of this week, this comes as high pressure settles into the area.

The storm responsible for the damaging winds for Southcentral over the weekend, has pushed north into the Chukchi Sea. We’ll still see some light snow accumulations for Western Alaska, with 1 to 3 inches expected. Some fo the heaviest snow will fall across the Seward Peninsula and the Western Brooks Range.

An area of low pressure in the Bering Sea will keep gusty winds and snow in the forecast for Gambell/St. Lawrence. Be prepared for heavy snow at times and areas of reduced visibility. Overall, colder weather will settle into Western Alaska, with the possibility of morning fog in the valleys over the next few mornings.

ALEUTIANS:

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Some light areas of snow will occur for the Pribilof Islands and into parts of the Alaska Peninsula today, as a weak low moves up the Peninsula. This will be the main focus for snow into Wednesday for Southcentral. This low will bring heavy precipitation and gusty winds for the Eastern Aleutians and the Alaska Peninsula. Looking ahead through the rest of the week, we can expect to see more a ridge beginning to build into the region. This ridge will slowly shift east, keeping several upper level disturbances traversing the Aleutians. Temperatures will remain fairly warm in the 30s and 40s.

OUTLOOK AHEAD:

Model consensus continues to agree on another warming trend heading our way into next week. This stretch of warmth will likely lead to many spots cementing themselves within the top warmest January’s on record. While we’ll spend the rest of this week on the colder side, highs steadily climb this weekend into next week. We’ll see highs in Southcentral climbing back above freezing, with areas of the Interior climbing back into the 20s.

Have a safe and wonderful Tuesday!

See a spelling or grammar error? Report it to web@ktuu.com

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Anchorage, Alaska hit by hurricane-force winds, structures damaged across city

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Anchorage, Alaska hit by hurricane-force winds, structures damaged across city


Associated Press

Hurricane-force winds cause widespread damage in Alaska’s largest city

Thousands of residents across Alaska’s largest city were still without power Monday, a day after a powerful storm brought hurricane-force winds that downed power lines, damaged trees, forced more than a dozen planes to divert, and caused a pedestrian bridge over a highway to partially collapse. A 132-mph (212-kph) wind gust was recorded at a mountain weather station south of Anchorage. A large low-pressure system in the Bering Sea brought the high winds, moisture and warmer than average temperatures — in the low 40s Fahrenheit (slightly over 4.4 degrees Celsius) — to Anchorage on Sunday, said National Weather Service meteorologist Tracen Knopp.



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