The basking shark is the second largest shark in the world, after the Whale Shark. It belongs to the order Lamniformes, the family Cetorhinidae and the genus Cetorhinus. Average adults range between 20 and 26 feet in length and weigh between 6,600 and 13,000 pounds.
They can be found in the arctic and temperate waters around the globe. Their scientific name is Cetorhinus maximus. They are peaceful animals as they do not hunt other marine animals or harm humans.
Basking Shark Facts For Kids
- Second-largest fish species after whale sharks.
- Can grow up to 12 meters long.
- Feeds primarily on plankton.
- Swims with mouth wide open.
- Found in temperate ocean waters.
- Moves slowly, about 3 mph.
- Has a lifespan of about 50 years.
- Not aggressive towards humans.
- Has gill slits that encircle its head.
- Listed as a vulnerable species.
Filter feeding behavior
Basking sharks, the second-largest living sharks, captivate attention with their unique filter feeding behavior, contributing a distinct role in the ocean’s ecosystem. They astonishingly feed by unhinging their colossal mouths, spanning over a meter wide, and navigate through the water, sieving out minute organisms such as plankton, small fish, and invertebrates.
This is made possible through their gill rakers, specialized structures within their gills, which they use to filter these microorganisms from the water. Despite their intimidating size, their non-aggressive feeding method renders them completely harmless to humans, a fact that is sure to astound children when learning that such gigantic creatures subsist on such tiny organisms.
Second-largest fish species
The basking shark, an immensely fascinating marine creature, holds the prestigious title of being the world’s second-largest fish species, only outdone by the whale shark.
Despite their colossal size, which can reach up to 40 feet, they are known as gentle giants due to their primary diet of plankton. They consume their food by opening their enormous mouths and filter feeding as they swim, a trait uniquely supplemented by their hundreds of tiny teeth which aren’t used for eating but for filtering their food.
Their characteristic ‘basking’ in the sun near the water’s surface is the source of their moniker. These slow-moving creatures, completely harmless to humans, captivate marine biologists with their unique behaviors and are a wonder for shark enthusiasts.
Plankton as primary diet
Basking sharks, often regarded as captivating marine entities due to their vast size and distinctive feeding habits, are the second largest fish species globally.
These gentle behemoths are primarily planktivorous, consuming enormous quantities of tiny organisms such as plankton. Their considerable size and wide-open mouths enable them to swim through vast volumes of water, filtering out plankton and small fish in a process known as passive feeding. Surprisingly, they have the capacity to filter an impressive 1,800 tons of water every hour, ensuring they consume sufficient plankton to satiate their substantial appetites.
This preference for a diet comprising primarily of miniature creatures, rather than larger prey, is a fascinating tidbit for children. Basking sharks’ plankton-based diet plays a crucial role in the marine food chain, contributing significantly to maintaining the equilibrium of ocean life.
Seasonal migration patterns
The second largest fish in the world, basking sharks, exhibit intriguing seasonal migration patterns that captivate children’s interest.
During the balmy summer months, these colossal yet docile creatures maneuver towards the chillier, plankton-abundant waters in proximity to the poles. Here, they can be observed languidly swimming near the ocean’s surface, seemingly ‘basking’ in the sun. As winter draws near, they shift their course towards the warmer equatorial waters.
The migration of basking sharks is marked by astounding distances, with some recorded trajectories extending thousands of miles. These migratory patterns, driven by a consistent food supply and optimal temperature conditions, are crucial for their survival.
Conservation status and threats
The Basking Shark, an intriguing marine creature, is currently classified as ‘Endangered’ on the IUCN Red List, indicating a significant risk of extinction in the wild.
This risk primarily stems from human activities, which have historically subjected these majestic animals to heavy hunting for their liver oil, skin, and fins. Presently, they face threats from ship strikes, fishing nets, and plastic pollution.
Despite ongoing marine conservation efforts to safeguard the Basking Sharks and their natural environment, it remains crucial for us to comprehend and respect these remarkable animals to guarantee their survival for the benefit of future generations.
Slow-moving and docile nature
The basking shark, renowned for its docile and slow-moving nature, holds the title of being the second-largest member of the shark family, making it an intriguing subject for children.
Contrary to the common and fearsome shark stereotype, these tranquil titans prefer to traverse the ocean at a relaxed speed of about 3 miles per hour, demonstrating that there’s a vast spectrum of behaviors within the shark family.
They uniquely adopt a serene lifestyle, quietly filter-feeding as they swim with their mouths agape, consuming plankton as their primary nourishment. This laid-back approach of the basking shark aids in debunking the typical scary shark image, teaching children that not all sharks are swift and intimidating predators.
Distinctive gill slits and large mouth
The basking shark, distinguished as one of the world’s largest sharks, boasts some truly unique features that set it apart from its counterparts. Its distinctive gill slits, which unusually nearly encircle its head, are paramount to its survival as they enable the shark to filter plankton, its primary food source, from the water.
Complementing this impressive adaptation is the basking shark’s incredibly large mouth, capable of opening up to 1 meter wide, facilitating the consumption of vast volumes of plankton-rich water. Despite their impressive size and potentially daunting appearance, basking sharks are renowned for their gentle demeanor and pose no harm to humans.
Habitat and distribution in temperate oceans
The Basking Shark, a captivating marine species, enjoys a broad geographical distribution in the temperate oceans worldwide, particularly in the cooler Atlantic and Pacific waters with temperatures between 8-14 degrees Celsius.
Preferring open waters, these colossal fish are often observed basking near the surface during summer, a behavior that earned them their name. However, they undertake a migration into deeper waters during the winter.
Residing along continental shelves, coastal lines, and close to river mouths, these migratory creatures are known to travel thousands of miles. The precise routes of these migrations, however, remain an enigma to scientists. Despite their expansive habitat, sightings of Basking Sharks are uncommon, making each encounter a treasured experience for marine enthusiasts.
Reproductive biology and gestation
The life cycle of basking sharks is particularly interesting due to their reproductive biology and extended gestation period. As ovoviviparous creatures, they bear live young who develop inside eggs within the mother’s body until they are mature enough to hatch.
Remarkably, the gestation period of basking sharks is the most prolonged of all sharks, spanning up to three years. The reproductive frequency of female basking sharks is relatively low, with reproduction occurring only once every two to four years, typically resulting in six pups per cycle. These pups are born fully developed and capable of immediate swimming, a crucial survival trait in the vast ocean.
Despite our knowledge, the reproductive behavior of basking sharks remains largely an enigma to scientists, adding to their allure for budding marine researchers.
Human interactions and ecotourism
Despite their intimidating size, basking sharks are known to be gentle giants, posing a safe and non-threatening presence to humans, often becoming a considerable attraction for worldwide ecotourism. Enthusiasts from various corners of the world travel to coastal regions such as California, Massachusetts, and Scotland, with an aim to witness the captivating sight of these majestic creatures.
Being a protected species in numerous places, eco-tours serve as a platform for individuals to gain knowledge about these sharks and the cruciality of their preservation. The opportunity to swim alongside these monumental beings, observing their leisurely, elegant movements and unique filter-feeding habits, is an exhilarating experience for divers and snorkelers.
Yet, it remains vital to respect these animals, maintaining a safe distance to prevent any disturbance to them or their natural habitats.
Quick Facts: –
- Basking Shark has a conical body which is covered with a layer of mucus. It has gray or brown skin on the back and white on the belly.
- Their diet mainly comprises of plankton. This is a reason why they are not a common predator.
- This shark is also called the Sunfish, the Bone shark, the Elephant shark, the Sailfish shark, and the Big mouth shark.
- These sharks have very large livers that make up to 25% of their total body weight.
- Their mating season starts in early summer. Females have a gestation period of around one year.
- These sharks give birth only once every two to four years.
- They have the smallest weight to brain ratio of any shark. It is because of their passive temperament.
- Earlier, the liver of basking shark were a valuable resource. The oil extracted from them served as a lamp fuel.
- The average lifespan of these sharks has been estimated to be around 50 years.
