Jack Perks
@fishtwitcher.bsky.social
Fish Twitcher, Wildlife Cameraman, Author & Podcaster, Amateur Gardener
Cuckoo wrasse are colourful fish native to UK coasts that are easily distinguished by sexual dimorphism: males are blue and orange, while females are orangey-pink with black. They have a unique reproductive cycle where the largest female can change sex to male if needed.
November 25, 2025 at 11:02 AM
Cuckoo wrasse are colourful fish native to UK coasts that are easily distinguished by sexual dimorphism: males are blue and orange, while females are orangey-pink with black. They have a unique reproductive cycle where the largest female can change sex to male if needed.
Butterfish are small, eel-like fish with slippery skin, also known as rock gunnels, and are commonly found in UK rockpools and shallow seas. They are known for their yellowish-orange to reddish-brown color, dark bands, and distinctive white-ringed black spots along their back.
November 24, 2025 at 10:16 AM
Butterfish are small, eel-like fish with slippery skin, also known as rock gunnels, and are commonly found in UK rockpools and shallow seas. They are known for their yellowish-orange to reddish-brown color, dark bands, and distinctive white-ringed black spots along their back.
November 23, 2025 at 3:28 PM
Tench are robust, deep-bodied fish with a reputation as a "doctor fish" due to their healing slime, which also protects them from parasites and damage. They prefer calm, soft-bottomed lakes, ponds, and slow-moving rivers, where they hide among dense vegetation and feed on invertebrates
November 23, 2025 at 10:32 AM
Tench are robust, deep-bodied fish with a reputation as a "doctor fish" due to their healing slime, which also protects them from parasites and damage. They prefer calm, soft-bottomed lakes, ponds, and slow-moving rivers, where they hide among dense vegetation and feed on invertebrates
Ballan wrasse are the largest of the UK's wrasse species, with a heavy body, variable coloration, and strong teeth for crushing shells. They are common around British and Irish coasts, live in rocky, weedy habitats.
November 22, 2025 at 11:29 AM
Ballan wrasse are the largest of the UK's wrasse species, with a heavy body, variable coloration, and strong teeth for crushing shells. They are common around British and Irish coasts, live in rocky, weedy habitats.
Lumpsuckers are lumpy, ball-shaped marine fish with a suction disc on their underside, which allows them to cling to rocks and seaweed. They are clumsy swimmers and rely on this suction disc, which is a modified pelvic fin, to stay in place in rough waters.
November 21, 2025 at 10:08 AM
Lumpsuckers are lumpy, ball-shaped marine fish with a suction disc on their underside, which allows them to cling to rocks and seaweed. They are clumsy swimmers and rely on this suction disc, which is a modified pelvic fin, to stay in place in rough waters.
Feeding time is always hectic!
November 20, 2025 at 1:00 PM
Feeding time is always hectic!
Young cuckoo wrasse coming up to me to investigate!
November 20, 2025 at 12:05 PM
Young cuckoo wrasse coming up to me to investigate!
Boarfish typically live in very deep water. They have a protrusible, tube-like mouth for pulling small invertebrates from the seabed and are often found in shoals over rocky or sandy bottoms in the Atlantic, Mediterranean, and other oceans.
November 19, 2025 at 8:05 AM
Boarfish typically live in very deep water. They have a protrusible, tube-like mouth for pulling small invertebrates from the seabed and are often found in shoals over rocky or sandy bottoms in the Atlantic, Mediterranean, and other oceans.
I've got a special deal on until this weekend with a A2 fish poster and playing cards being half price if you buy before Sunday £7.99 + postage get them while I have them!
November 18, 2025 at 4:26 PM
I've got a special deal on until this weekend with a A2 fish poster and playing cards being half price if you buy before Sunday £7.99 + postage get them while I have them!
Thanks to @tom.hartman.18041 for cleaning up my puffin skull!
November 17, 2025 at 1:38 PM
Thanks to @tom.hartman.18041 for cleaning up my puffin skull!
How to Make a UK Native Marine Aquarium! Really enjoyed making this vid lots of fun
www.youtube.com/watch?v=Qbta...
www.youtube.com/watch?v=Qbta...
November 16, 2025 at 3:53 PM
How to Make a UK Native Marine Aquarium! Really enjoyed making this vid lots of fun
www.youtube.com/watch?v=Qbta...
www.youtube.com/watch?v=Qbta...
Had a absolute blast being a guest on Nature Table for @bbcradio4 with host Sue Perkins and fellow guests James Wong and Jordan Gray needless to say
I’m waffling about two fish!
I’m waffling about two fish!
November 15, 2025 at 12:17 PM
Had a absolute blast being a guest on Nature Table for @bbcradio4 with host Sue Perkins and fellow guests James Wong and Jordan Gray needless to say
I’m waffling about two fish!
I’m waffling about two fish!
Atlantic Salmon numbers are crashing to a worryingly low amount in British rivers and I see hatcheries being presented as a solution but what’s people’s thoughts a last ditch effort to keep them going or just slowing the inevitable?
November 15, 2025 at 12:03 PM
Atlantic Salmon numbers are crashing to a worryingly low amount in British rivers and I see hatcheries being presented as a solution but what’s people’s thoughts a last ditch effort to keep them going or just slowing the inevitable?
One question I get asked is "What can we do to help rivers" & increasingly I find it a harder and more complex question to answer so i'm throwing it out to you, are we up shit creek without a paddle (quite literally) or is there hope for British rivers and is so what can we do?
November 14, 2025 at 1:58 PM
One question I get asked is "What can we do to help rivers" & increasingly I find it a harder and more complex question to answer so i'm throwing it out to you, are we up shit creek without a paddle (quite literally) or is there hope for British rivers and is so what can we do?
I've got two upcoming events with East Mercia Rivers Trust a talk on rivers and a screening of Britains Hidden Fishes and best of all they are both free to attend!
November 13, 2025 at 10:57 AM
I've got two upcoming events with East Mercia Rivers Trust a talk on rivers and a screening of Britains Hidden Fishes and best of all they are both free to attend!
I've been playing around with pie charts (I'm in my mid 30's this is as exciting as it gets for me now) and looking at what baits & locations I've caught the 100 odd species in Britain & Ireland. I'll make a more in depth video at some point with a list of species
November 13, 2025 at 9:50 AM
I've been playing around with pie charts (I'm in my mid 30's this is as exciting as it gets for me now) and looking at what baits & locations I've caught the 100 odd species in Britain & Ireland. I'll make a more in depth video at some point with a list of species
This Sunday I've got my how to set up a UK native marine fish tank coming out its been such a great process and really enjoyed keeping several native species like this wonderful Montagu's Blenny
November 12, 2025 at 9:19 AM
This Sunday I've got my how to set up a UK native marine fish tank coming out its been such a great process and really enjoyed keeping several native species like this wonderful Montagu's Blenny
Calendars are pretty much sold out and still have some books in stock along with playing cards and posters
jack-perks-wildlife-media.sumupstore.com
jack-perks-wildlife-media.sumupstore.com
November 11, 2025 at 3:22 PM
Calendars are pretty much sold out and still have some books in stock along with playing cards and posters
jack-perks-wildlife-media.sumupstore.com
jack-perks-wildlife-media.sumupstore.com
November 11, 2025 at 8:05 AM
This week I’m trying to catch 24 species in 24 hours as I’m joined by Hugh Miles
youtu.be/qaIhtr_4Vlw?...
youtu.be/qaIhtr_4Vlw?...
November 9, 2025 at 5:11 PM
This week I’m trying to catch 24 species in 24 hours as I’m joined by Hugh Miles
youtu.be/qaIhtr_4Vlw?...
youtu.be/qaIhtr_4Vlw?...
Pleased to have a couple leopard spot gobies in the tank now! Thanks to Donny for fish wrangling services had to meet him in a car park in Bristol for these
November 5, 2025 at 2:10 PM
Pleased to have a couple leopard spot gobies in the tank now! Thanks to Donny for fish wrangling services had to meet him in a car park in Bristol for these
Found this stone loach the other day when in the river, they have a very rounded tail fin and really slimy to the touch much like a tench.
November 4, 2025 at 3:45 PM
Found this stone loach the other day when in the river, they have a very rounded tail fin and really slimy to the touch much like a tench.
I think my frogs a little confused they’ve started croaking already!
November 3, 2025 at 3:42 PM
I think my frogs a little confused they’ve started croaking already!
The absolute stars of my UK native marine tank however our my Montagu's Blennies. I have three with the biggest one I've named Elvis. They are so cheeky and always come to see what I'm doing when I enter the office. Quickly becoming a favourite fish of mine.
November 3, 2025 at 11:00 AM
The absolute stars of my UK native marine tank however our my Montagu's Blennies. I have three with the biggest one I've named Elvis. They are so cheeky and always come to see what I'm doing when I enter the office. Quickly becoming a favourite fish of mine.