According to the Wikipedia, “an endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters….” It is not just animals that are in this critical condition- marine kingdom are also not exempt to it. The International Union for Conservation of Nature’s (IUCN) Red List says there are 1,414 species or 5% of the world’s known fish are at risk for extinction. The common cliché goes… ‘There are plenty of other fish in the sea’ but are there? We have to think twice before we make that comment.
The greatest threat to these fish species is of course overfishing, followed by habitat loss and population. So what do you do if one of these ends up on your fishing hook? You need to release the fish back in the water. You would also need to make a few observations like where did you catch the fish? The location, at what time, how many of them did you spot and what size were they? Were these fish adult o juvenile? Were they swimming or feeding? You must notify all these information along with a photograph if you can manage to the local wildlife officials.
Here is a list of the top 5 most endangered fish commonly harvested for food.
5. Bocaccio Rockfish: There are 70 species of Rockfish living of the United State’s West Coast; Bocaccio Rockfish are the most endangered. Even though this 3 foot fish reaches reproductive age sooner than many other, its larvae has a very low chance of survival. In 2002 US has closed many West Coast fisheries in response to the dwindling numbers. Scientists believe that it could take 100 years for bocaccio populations to recover and thus IUCN has listed the species as critically endangered, with significant challenges to recovery.
4. European Eel: The unusual life cycle of European eel is one of the basic reasons for the species to be on the endangered list. These are found in the North Atlantic, Baltic and Mediterranean Seas. Their life cycle begins with their birth at sea, and continues in freshwater streams where they can grow to a length of 4.5. They reach sexual maturity anywhere between 6 to 30 years of age and return to the sea to spawn. If their route to sea is blocked, they return to freshwater and can live for up to 50 years. But they die if they make it back to saltwater and reproduce. Thus the eels caught at sea are juvenile and have not had a chance to reproduce and the overfishing at sea has earned it a spot on the list.
3. Goliath Grouper: Another name for this fish is jewfish and it lives in the Eastern Pacific and the Atlantic. In its 40 years life span the fish grows to 7 feet. There are two main reasons behind overfishing of the Grouper; a) it only reproduces for a short period of time and b) juveniles often become accidental bycatch in other fishing operations. The remaining fish are targeted by fishing boats. The fish has thus been put on the list out of concern over its survival.
2. Maltese Ray: The 90 mile wide channel between Italy and Tunisia is where the fish is limited today. The Maltese Ray are taken as bycatch in boats harvesting other species rather than being rarely targeted by commercial fishing vessels. These unwanted fish are thrown back into the water dead or dying, once caught. The decreasing population of the fish has earned it a spot in the endangered fish species list.
1. Blue fin Tuna: One of the fastest fish in the sea, the blue fin tuna is the most iconic endangered species of fish. Te fish can grow to a length of about 10 feet and weigh more than 1400 pounds. This is a popular catch for recreational fisherman and it also highly prized by commercial fishermen as well. The species is heavily overfished. It is difficult to have a particular international law as the fish is known to migrate thousands of miles across the ocean. WWF has chosen the blue fin tuna to be one of the sixth most threatened species of the world. Experts fear and agree that this slow maturing, slow growing fish will eventually become extinct.