Hanako ("flower girl") was a remarkable koi fish that lived for 226 years

Hanako ("flower girl") was a remarkable koi fish that lived for 226 years

Source: twitter

12/15/2023

$Hanako ("flower girl") was a remarkable koi fish that lived for 226 years$

In 1966, Professor Masayoshi Hiro from Nagoya Women’s University's Laboratory of Animal Science dedicated two months to meticulously ascertain Hanako's age. Like the method of counting rings in tree trunks to determine a tree's age, a fish's age is deduced by counting the rings on its scales.

These rings, discernible only under a microscope by an expert, reflect the seasonal variations experienced by the fish. A broader ring indicates the summer season, when a fish typically consumes more food and experiences accelerated growth. Conversely, a narrower ring suggests the winter months, marked by a slower metabolism in the fish.

Koi

Continue...

News Id		Source	Stamp	country
3626	Girl, 15, lands big Chinook: ‘If you are a fish, you should definitely fear her.’	chicago.suntimes	2021-06-22	US
3627	To Save Its Salmon, California Calls In the Fish Matchmaker	The New York Times	2016-01-15	US
3628	Scientists sound alarm over hydropower’s impacts on tropical fish biodiversity	mongabay	2016-01-12	CA
3629	Strange 6ft deep-sea fish washes up in Alaska	Earth Touch News	2016-01-11	US
3630	Asian carp could become most common fish in Lake Erie, study finds	kitchener.ctvnews	2016-01-04	CA
3631	How satellite technology is helping to fight illegal fishing	theguardian	2016-01-04	UK
3632	Family says parasites were in fish bought at California Costco	fox5sandiego	2015-12-31	US
3633	Farage fury at EU ban on anglers keeping fish	express	2015-12-29	UK
3634	Fish rage: Locals block wharf after fishermen filmed with 'thousands' of pink maomao in bins in Tairua	nzherald	2021-06-25	NZ
3635	Spanish mackerel stocks under threat from overfishing, government says	ABC Rural	2021-06-13	SP
3636	NSW man gets $11k penalty for making more than $200k selling protected fish	ABC Broken Hill	2021-06-16	AU
3637	New fish scale determines weight based on tail size	dailyamerican	2015-12-29	US
3638	These Fish Went From Saltwater To Freshwater In Just Fifty Years	gizmodo	2015-12-18	US
3639	Record fish haul confirms recovery of North Sea stocks, say industry figures	heraldscotland	2015-12-18	UK
3640	Salmon lovers rejoice, you may be allowed to ‘suspiciously handle’ the fish soon	metro	2015-12-15	UK
3641	Mangrove water snake catches fish in South Florida	wfla	2015-12-09	US
3642	Why one lake contains more than 1000 species of the same fish	newscientist	2015-12-07	US
3643	Captain Releases His 30,000th Billfish	sportfishingmag	2015-12-04	GT
3644	Salmon eaten in US modified even before genetic engineering	geneticliteracyproject	2015-12-03	US
3645	UN Agency Deploys 'Fish Magnets' Along Somali Coast To Boost Sustainable Fishing	underwatertimes	2015-12-07	IT
3646	More dead fish wash ashore in Cockburn Sound	PerthNow	2015-12-02	AU
3647	Police: 3 teens brag about killing fish at Florida Oceanographic in Stuart	wflx	2015-12-01	US
3648	Spectacular Growth Measured in Dolphinfish		2015-11-25	US
3649	Sea lions panicked by orcas almost sink Chilean fishing boat	abc	2021-06-15	CL
3650	Why the world’s most fertile fishing ground is facing a ‘unique and dire’ threat	theguardian	2021-06-13	UK

145 of [218 - pages.]