News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Politics

Necropsy confirms dead whale found in Newark Bay was a 44-foot endangered sei whale

Sei whales are an endangered species and the third-largest whale species, reaching 40 to 60 feet in length and up to 50 tons as adults, according to the stranding center.

Derek Callahan

Apr 18, 2026, 7:43 PM

Updated

Share:

More Stories

An endangered male sei whale found floating dead in Newark Bay in early April was 44 feet long and weighed an estimated 15 tons, according to final findings released after a necropsy.

The Marine Mammal Stranding Center and the Atlantic Marine Conservation Society said the whale, first reported April 9, underwent a necropsy on Thursday, April 16.

RELATED: Dead whale found in Newark Bay towed to Jones Beach for necropsy

RELATED: 50-foot whale found dead in Newark Bay moved to NY Harbor as experts plan recovery and necropsy

Officials said no food was found in the whale’s stomach, suggesting the animal had not been eating recently.

Multiple biological samples were collected for further analysis. The results will be posted on the Marine Mammal Stranding Center’s website when available.

The whale was buried on the beach after the necropsy.

Sei whales are an endangered species and the third-largest whale species. They can reach 40 to 60 feet in length and up to 50 tons as adults, according to the Stranding Center. The group said it has responded to four sei whales since 1978.

More Stories

Top Stories

02:00
justinpkg0529_2026-05-29-21-24-24

'Norwalk icon in the making.' Luca's Beach Kitchen opens at former Ripka's Cafe site at Calf Pasture Beach

02:18
CT STORM OUTLLOK

Colder and windy start to the weekend

00:25
cscu

CSCU General Counsel on adminsitative leave amid sexual harassament investigation

01:58
thumbnailforjohn_2026-05-29-17-33-18

Battle over borrowing: Gov. Lamont and Republican challenger clash over spending

02:17
0529GregPKG_2026-05-29-16-45-59

'It will be a big building.' Controversial 102-unit complex in New Canaan given final green light

00:55
schoolrenamed0529_2026-05-29-16-49-45

Norwalk school renamed after longtime educator

00:27
Joseph Thompson mugshot

Self-appointed community activist found guilty of threatening Bridgeport police officers

00:39
murrow

News 12 Connecticut receives 2 Edward R. Murrow Awards

00:54
0529Manresavs_2026-05-29-16-47-47

Manersa Island Corp announces creation of new research station in Norwalk

02:39
Mark7aml529_2026-05-29-07-11-00

Main Street Connecticut: Bridgeport Greek Festival

DRUG TRAFFICKING SENTENCING - mon copy

Norwalk woman sentenced for role in drug trafficking ring

00:30
Waterbury-mugs

Teens charged in connection with shooting death in Waterbury

APnewstn

Judge temporarily blocks payouts from Trump’s $1.8B ‘anti-weaponization’ settlement fund

02:09
justinpkg0528_2026-05-28-21-15-03

'Part of the flywheel.' Unilever announces plans for new research facility in New Haven

00:16
westportcrash0528_2026-05-28-21-16-31

Fire: One person hospitalized after car strikes Westport apartment

02:28
johnpkgfix0528_2026-05-28-17-12-27

Trump's payments to Jan. 6 rioters could face 100% tax in CT

02:25
0528GregSpeedCamPKG_2026-05-28-16-45-43

Connecticut state senator calls for Fairfield to pause its speed camera program

00:21
DRUG CHARGES MONITOR copy

Stamford woman pleads guilty to selling drugs, firearms during federal supervised release

00:30
988 line

Data shows a 18% drop in suicide rates since 988 was launched, including in Connecticut

02:03
hannahcruzchess0527_2026-05-28-17-33-31

Newtown native earns her first Tony nomination for 'Chess' performance

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices