Are Mako Sharks Rare? Unveiling the Truth Behind the Elusive Ocean Predator

The shortfin mako shark (Isurus oxyrinchus) and its close relative, the longfin mako, are often perceived as elusive ghosts of the open ocean, leading many to wonder if these incredible predators are rare. While they are not classified as endangered on a global scale like some other shark species, their populations are significantly more vulnerable and less numerous than commonly believed, facing intense pressure from commercial fishing. Understanding the true status of the mako requires looking beyond a simple yes or no answer, examining the distinction between rarity and conservation status, and recognizing the regional differences in their abundance.

Global Conservation Status: Not Endangered, But Far From Secure

According to the International Union for Conservation of Nature (IUCN) Red List, the shortfin mako is listed as Endangered, while the longfin mako is listed as Vulnerable. This classification highlights a significant risk of extinction in the wild, driven primarily by overfishing. These sharks are highly sought after for their valuable fins, meat, liver oil, and skin, and their tendency to leap when hooked makes them a prized catch in recreational fisheries. Their biological characteristics—slow growth, late maturity, and low reproductive output—mean that once populations are depleted, they struggle to recover for decades.

Why Their Biology Makes Them Inherently Vulnerable

Mako sharks are not prolific breeders; they are what ecologists call "K-selected" species. A female mako typically gives birth to only 4 to 18 pups every two to three years after a gestation period of about 15 to 18 months. This slow reproductive cycle is a key reason why they cannot withstand high fishing pressure. When adult sharks, particularly mature females, are removed from the population at a rate faster than they can reproduce, the deck is stacked against their recovery, making even moderate levels of fishing unsustainable.

The Pressure of Commercial and Recreational Fisheries

Historically, mako sharks were often considered bycatch, unintentionally caught by longline fisheries targeting more valuable species like tuna and swordfish. However, their value has increased, leading to more targeted finning and landing. They are particularly vulnerable to longline fishing due to their preference for surface waters where the gear is often set. In the North Atlantic, for example, landings data suggest populations have declined significantly, prompting strict regulations and a recent push for a full ban on retaining shortfin makos in that fishery to give the population a chance to rebuild.

Data-poor, but suspected to be declining

Heavy fishing pressure with limited management

Military fishing team lands giant mako shark from Florida beach

Data uncertain, likely declining

Bycatch in swordfish and tuna fisheries

Are They Rare in the Wild? Answering the Question

the different types of sharks are shown in this chart, and each one has its own name

Directly comparing them to true rarity, such as the great white shark, is complex. Mako sharks are still encountered by fishermen and divers, but these encounters are becoming less frequent and occur in fewer locations. They are no longer the common oceanic travelers they once were. The perception of them being abundant is largely a legacy of past eras when stocks were healthier. Today, their "rarity" is a symptom of over-exploitation rather than a naturally low population density.

The Role of Citizen Science and Tracking

the shark's teeth are labeled in blue and pink colors, with information about them

many different types of sharks swimming in the ocean with captions below them that describe their names

four different types of animal's teeth are shown on the ground with names below them

the shark is depicted in this diagram with information about it's teeth and features

a large white shark jumping out of the water

an image of a shark with its mouth open in the water and another photo of it's teeth

a white shark swimming in the ocean with its mouth open and teeth out, looking at the camera

Types Of Sharks: Shark Species List With Images & Info - Shark Sider

a great white shark swimming in the ocean

an image of sharks in the ocean with caption for each shark to see and do

the longfin mako is very similar to its close relatives, but it doesn't have any teeth

a shark with its mouth open in the water

a great white shark with its mouth open and it's teeth out in the water

Modern satellite tagging projects have been instrumental in changing our perception of mako ecology and vulnerability. These studies have revealed that makos undertake vast migrations across international waters, connecting populations between countries and continents. This discovery underscores that fishing pressure in one nation’s waters can impact the population of another. The data from these trackers shows that individual sharks are heavily used, often returning to the same spots, which makes them easy targets and highlights the need for international cooperation in their management.

Conclusion: A Species at a Crossroads

So, are mako sharks rare? They are not on the brink of extinction in the way some species are, but they are on a trajectory that could lead them there without urgent and effective intervention. They are rare in the sense that a healthy, robust population of these supreme oceanic predators is increasingly difficult to find. Their protection is not just about saving a single species but about maintaining the health and balance of the entire pelagic ecosystem they inhabit. Stronger regulations, better enforcement, and a global commitment to sustainable fishing practices are the only way to ensure that makos remain a common sight in our oceans for generations to come.

Region	Population Status	Primary Threat
North Atlantic	Overfished, declining	Targeted and bycatch in pelagic longlines
Mediterranean Sea	Critically low	Intensive fishing pressure, habitat degradation
Western Pacific
Tropical Atlantic