#Esox Lucius

[sitting-on-me-bum]

Pike Courtship, Northern pike (Esox lucius), Stoney Cove, Leicestershire, England

‘This photo was taken on a dive aimed at finding breeding pike in a quarry. I came across a group of six pikes, two of which moved off, leaving this group of four – three males and a female (furthest from view). During courtship, the males are oblivious of divers, so it was possible to get close to them and take a series of pictures’

Photograph: Robert Cuss

British Wildlife Photography Awards

[hydrohobbyist]

Esox lucius caught out of a small creek in NW Ohio in mid June.

[aquariuminfobureau]

Northern pike

I sometimes get asked, about keeping pike in an aquarium. The only species of true pike, I have experience with, is the northern pike of Eurasia, Esox lucius. This is a huge predator, growing to around 150 centimeters or 5 feet long, and realistically requires a pond environment, when it reaches full size. And it would need to be a large pond at that, at least four times the length of the pike, by two and a half times its length.

Northern pike inhabit vegetated lakes, slow moving creeks, and the backwaters of rivers. Their primary prey is fish, but amphibians and freshwater lobsters are also important food animals, depending on locality. Other animals on their menu, include swimming birds, water snakes, and small mammals. That said, aggression by pike is purely for food, and non-prey are not harassed by these otherwise gentle giants.

Larger pike do eat smaller pike, so care should be taken when cohabiting them together. As pikes can take prey up to even 1/2 their own length, suitable tankmates must be selected with care. However, the jaws of pike do not have an exceptional vertical gape, meaning large, deep bodied fishes over a 1/3 of a pikes total length, are not seen as prey.

Data from wild E. lucius, indicate they have a wide pH tolerance, ranging from 5 to 9. However the fish flourishes best at a close to neutral pH. The temperture for happy, healthy pike should be at least 10 degrees centigrade, and never allowed to rise, as high as 20 degrees. Their tank or pond should be well vegetated, with a talk, grassy plant such as Valisneria, or artificial plants.

Although pike can obviously withstand much cooler temperatures in the wild, this is purely seasonal, and such temperatures are unsuitable, for year round care. These are a true coldwater fish, and do not appreciate warm waters. On the other hand the adaptability of pike to water parameters is such, that some pike populations are found in brackish waters, with a specific gravity up to 1.008. It appears that pike must be exposed to these conditions as fry, to be tolerant of them as adult fish.

Feeding E. lucius on aquarium fare can be tricky. Many will only consume live fishes, but on fish farms, they are raised to consume protein-rich pellets. Therefore the notion that pike must be fed live fishes, is patently untrue. These fish do not need to eat often, because their lurking demeanor evolved to save energy. However, the tank filtration will need to be powerful, because of the volume of waste E. lucius are able to produce.

[krautjunker]

[fishyfishyfishtimes]

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mine:

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[noseysilverfox]

The northern pike, or common pike (lat. Esox lucius).

A predatory fish that prefers to hunt from ambush. Lying motionless in underwater vegetation in shallow waters, the pike suddenly lunges at its prey. Besides fish, it may target any animal it deems weaker than itself. There have even been recorded cases of attacks on adult ducks and muskrats. Interestingly, a pike's teeth are continuously replaced throughout its life as they wear down or are lost🌊

Щука обыкновенная (лат. Esox lucius).

Хищная рыба, предпочитающая охотиться из засады. Замерев в зарослях растительности на мелководье, щука внезапным рывком бросается на добычу. Помимо рыб ее жертвой может стать любое животное, которое щука посчитает слабее себя. Были даже зафиксированы случаи нападения на взрослых уток и ондатр. Интересно, что зубы у щук заменяются новыми по мере утери или износа на протяжении всей жизни🌊

[bethanythebogwitch]

Wet Beast Wednesday: northern pike

It's time for more fun in fresh water with one of the northern hemisphere's primary predatory fish. The northern pike is the tiger of the lakes: a powerful ambush predator that is at the top of the food chain. Popular amongst naturalists and anglers alike, the northern pike is a fairly famous fish. Let's dive in.

(Image: a northern pike seen form the side. It is a long, torpedo-shaped fish with a long head and large jaws. The dorsal and anal fins are very far back on its body. Its body is an olive green with white spots. End ID)

Esox lucius is a large, tube-shaped fish that reaches an average of 40-55 cm (16-22 in) long but can reach a maximum recorded size of 150 cm (59 in) and 28.4 kg (63 lbs). The head is elongated with long, sharp teeth and the most of the fins are far back on the body. The fin placement and body shape allows the pike rapid bursts of speed. The body is an olive green with white spots and a white or yellow underbelly. The head is covered with sensory pores that are an extension of the lateral line and therefore aid in sensing movement. The skin has a thick coating of protective mucus and is easily damaged. The northern pike is similar to the Amur pike (Esox reichertii), Aquitanian pike (Esox aquitanicus), and southern pike (Esox cisalpinus), all of which were previously though to be of the same species as the northern. The northern pike is also similar to the muskellunge (Esox masquinongy) and the two are capable of interbreeding to produce a hybrid called a tiger muskie.

(Image: a northern pike seen from below and the front, showing off its white underbelly. End ID)

(Image: a tiger muskie being held by a fisherman. Its body shape is similar to a northern pike's, but is more silvery with long, greenish stripes. End ID)

Northern pike are found throughout Europe and north Asia, as well as eastern North America. They are found in slow-moving streams and lakes and prefer places with lots of plant cover, which often restricts them to locations nearer the shore. The vegetation is needed both for their hunting strategy and reproduction. During winter and cloudy days and nights, they venture further from the vegetation. Pike are ambush predators that wait motionless in vegetation for prey to pass before attacking with a sudden burst of speed. Pike will pursue prey, but are not as good at long-distance pursuit at many other species of predatory fish. They are known as aggressive fish with a very broad diet including fish, frogs, small mammals, invertebrates, and aquatic birds. There have also been reports of pike attacking dogs and humans, likely while mistaking extremities for small fish. Pike are also aggressive toward each other. They are territorial and will compete for the best hunting grounds. Pike are also cannibalistic and will eat smaller members of their species. Young pike need vegetation as cover to hide from larger pike. Pike are generally solitary animals, though there are reports of pike engaging is what is apparently group hunting. They are somewhat migratory as they will follow migratory prey to their winter habitats.

(Image: a northern pike eating a frog. End ID)

Pike mate during spring, beginning when water temperature reaches 9 C (48 F). They have strong homing behavior, returning to the same breeding grounds where they hatched. Males arrive to the breeding grounds before females do and leave afterwards. Females release thousands of orange, sticky eggs for he males to fertilize. The eggs sink and stick to rocks and plants. Stable conditions above 6 C without high iron concentrations are best for egg development. The young hatch in an embryonic stage that lasts for 5-16 days depending on temperature before transitioning to larvae. The larvae feed on planktonic invertebrates until they reach between 4 and 8 cm, when they switch to feeding on small fish. The mortality rate of larvae is around 95%. Northern pike reach sexual maturity around 2 years and can live up to 25 years, with an average of 10-15 years.

(Image: a juvenile northern pike. It looks like a smaller version of an adult. End ID)

Northern pike are classified as least concern by the IUCN. They are prized by anglers for their size and the fight they put up when hooked. Even when released, their skin can easily be damage by handling, leading to increased mortality. Releasing them when still in the water is recommended. Like many species of sport fish, their average sizes have decreased as a result of overfishing. Because of their popularity as sport fish, northern pike are often stocked in lakes. In eastern North America they have been introduced to lakes outside their native range, leading to them damaging native fish populations. In southern Alaska and Washington they are considered invasive species. Northern pike are edible, though they are bony and need special skill to fillet.

Linking (Video: a pike chasing a lure from the POV of a camera attached to the lure. End ID)

[i-give-you-a-fish]

PLEASE PLEASE PLEASE CAN YOU POST NORTHERN PIKE

Holding tha boy

You get a Northern Pike

Esox lucius

[herpsandbirds]

Northern Pike (Esox lucius), family Esocidae, Hampshire Chalk Pit, England, UK

photograph by David Miller

[fishyfishyfishtimes]

🐟 Fishuary 2024 Day Sixteen: Freshwater Fish 🐟

I had to draw the northern pike (Esox lucius) eventually of course! My second favourite fish :)

@fish-daily

[wynco]

What’s your beef with the Northern Pike?

I'm so glad you asked.

The northern pike (Esox lucius) is native to the United States (Alaska, Midwest, and Northeastern USA specifically) and Canada, however, it was introduced to many other parts of the US as a sportfish, including parts of Alaska where the northern pike do not occur naturally due to the state's geography. They were also introduced to some places illegally due to some sportsmen trying to establish new populations to angle.

(USGS 2019)

Northern pike breed incredibly quickly and out compete many native fish for resources. They are also predators and eat many native fish as well, causing steep declines in their populations. Northern pike have no real predators, so there is nothing to stop their populations from getting out of control. This is especially a problem in Washington and Alaska where they add additional pressure the already struggling salmonid populations. They are INCREDIBLY hard to remove from the ecosystem once established and are kind of a death sentence for a lot of ecosystems.

If you happen to be fishing in an area with invasive northern pike, do the ecosystem a favor and take that shit out!! Despite what some people might say, they're actually pretty good eating if you fillet them right! There are tons of recipes online if you do get your hands on one. My suggestion is to make fish tacos out of them 😋

TL;DR: Northern pike are very invasive in many parts of the United States and decimate ecosystems.

If anyone is curious about reading further into the topic, here are some resources to look into/the sources I got my information from!

California’s Invaders: Northern Pike (CDFW)

Invasive Pike in Southcentral Alaska (ADFG)

Northern pike (Esox lucius) (WDFW)

Nonindigenous Aquatic Species - Northern Pike (USGS)

Northern Pike remains top invasive species in Columbia River system (The Columbian)

The Pike Problem (Northwest Power and Conservation Council)

Northern pike can wreak havoc on waterways. Some Maine fishermen still welcome them (Maine Public)

[bonefall]

how would you translate garfield into clanmew?

There are no gar in England, they are an American fish.

The closest the translation can get is "Pike," another type of large predatory fish. But there's plenty of words for open fields, thanks to WindClan!

Pike (Esox lucius) = Krach

Field (A flat, open area with few obstacles) = Hrool

Brush/Scrub (to contrast: this is an area with a lot of bushes and scraggly plants, like common heather.) = Skefe

Grassland (Would probably get used for savannas too, a place where the grass is high.) = Shakwos

Lawn (SkyClan-exclusive! Describes barren areas in suburbia where the grass is clipped unnaturally low and the hunting is terrible. Forest Four would use 'field.') = Orham

So for Garf, since he's the best little lazy kittypet ever, in Clanmew I'd faithfully translate his name as Krachorham. Pikelawn.

[curseweb-www]

fish or something

Northern Pike (Esox Lucius)

[rabbitcruiser]

Charlie Lake, BC (No. 3)

Charlie Lake is located in the Peace region approximately 9km northwest of Fort St. John, B.C. The lake is roughly 15km long with maximum and mean depths of 15m and 6.4m, respectively. It has a surface area of 18km2 and a shoreline perimeter of 38km. Watershed land use activities include agriculture, range/grazing, oil and gas, forestry, recreation and residential development (page 2). The main inflowing tributary to Charlie Lake is Stoddart Creek, with other named tributaries including Coffee Creek and Fish Creek (Lower Stoddart Creek). Charlie Lake contains the following sport fish: northern pike (Esox lucius), burbot (Lota lota), walleye (Stizostedion vitreum) and yellow perch (Perca flavescens). There have been many successful stocking and colonization programs on Charlie Lake, which date back to the early 1930s. There have also been some unsuccessful programs including both rainbow trout and large mouth bass. The Charlie Lake shoreline is highly developed with two Provincial Parks, one Rotary Park, a golf course and approximately 1500-2000 residents. The main concern among many residents is the high loading of sediment and nutrients from both inflowing tributaries and shoreline practices. This nutrient addition to the lake, which has occurred during the past century, has lead to an increased intensity of both green and blue-green algal blooms (French and Booth, 2004). The main source of these sediments and nutrients is thought to originate from poorly constructed/functioning road crossings, riparian land clearing, livestock access to stream channels, poor water management at oil and gas wellhead sites and roads, domestic waste and foreshore residential development (French and Booth, 2004).

Source

[gt-daboss]

So I'm asking you this cause you're a Bio Major, if a Northern Pike(Esox lucius) found itself in the North Sea would it survive? What sort of reactions would happen in their Bodies?

(Asking this cause one of my Giant OCs is in a RP and he is a Northern Pike Merman and he survived being thrown in the Sea but is affected by the Salt and all that affecting his Magical powers which go hand in hand with Science)

Imma keep it real with you chief, I'm only a first year bio student, so I'm probably not the best person to look to for answers... BUT... I would guess nothing very good, Pike are a freshwater species of fish, and while they DO sometimes go into moderately salty waters, the ocean would be a no-go, I think the north sea would probably be fine for your Fish OC for a bit? It definitely wouldn't be ideal for them, and eventually they would probably die from dehydration, (Nerd stuff incoming): as the water content in their body would be different from its surroundings, causing its body to lose water to osmosis. Sorry for not being able to answer your question specifically, but thank you for the ask! If you have any other questions id be down to try and answers them too! thanks!

[drownedsilverforever]

Ben drowned and lost silver as sirens/merfolk

Lost silver’s tail would be a mix between a female moorish idol and a male black ruby barb with a bit a black moor, for you see the Black Moors, also known as telescope goldfish, are a distinctive variety of fancy goldfish with protruding eyes. They are peaceful, slow swimmers with egg-shaped bodies, long flowing fins, and fan-like tails. Black Moors are typically black, but can also have orange or silver markings. They can grow up to 8 inches long and live for as long as 20 years. And the Moorish idol (Zanclus cornutus) is a small, vibrantly colored fish with a compressed, disk-like body. They are known for their distinctive markings, including: Black and yellow vertical bars Across their bodies White, sickle-shaped dorsal fin, it is Long and flowing, extending past the tail fin Black tail With a white tip The Moorish idol (Zanclus cornutus) is a small, vibrantly colored fish with a compressed, disk-like body contrasting with The black ruby barb (Pethia nigrofasciata, formerly Puntius nigrofasciatus) or purplehead barb is a tropical cyprinid fishendemic to Sri Lanka, where it occurs in forested streams from the Kelani basin to the Nilwala basin. They are found in streams on hills around 1000 ft (300 m) in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka, is said to have diminished in number due to the aquarium export trade, would that make lost silver the most beautiful siren of them all or no?

Ben drowned’s tail would definitely be a mix between the red-bellied piranha and the northern pike, The Northern pike (Esox lucius) is a carnivorous fish with a duck-like snout and sharp teeth. They are ambush predators that use aquatic vegetation for camouflage and hunt near underwater structures. It’s Elongated body and head, flat duck-like snout, and a single dorsal fin far back on the body. Color varies depending on habitat, with lighter colors in clear water and darker colors in darker water and The red-bellied piranha (Pygocentrus nattereri), also known as the red piranha, is a freshwater fish native to South America. The Adults are typically 6–8 inches long, but can grow to 20 inches and weigh up to 8.5 lbs. They have stocky bodies, reddish bellies, and silver flecks on their bluish-gray backs. Coloration varies by age and location. Behavior: Red-bellied piranhas are carnivorous scavengers that hunt in large groups called shoals I feel like being a freshwater siren would fit Ben drowned, while lost silver would definitely be a tropical water siren

freshwater siren x tropical water siren?👀