What is killing finless porpoise?

Buster Ullrich asked a question: What is killing finless porpoise?
Asked By: Buster Ullrich
Date created: Thu, Jan 28, 2021 1:27 PM
Date updated: Sat, Jul 30, 2022 2:40 PM


Top best answers to the question «What is killing finless porpoise»

Finless porpoise stranding cases in Hong Kong, 2006-2019

The population is believed to be decreasing due to an array of human threats, including vessel strikes, entanglement in fishing gear and pollution.


Those who are looking for an answer to the question «What is killing finless porpoise?» often ask the following questions:

🌴 What kind of porpoise is finless and finless?

  • Indo-Pacific Finless Porpoise. The Indo-Pacific finless porpoise (Neophocaena phocaenoides) was originally called the finless porpoise. This species was divided into two species (the Indo-Pacific finless porpoise and narrow-ridged finless porpoise fairly recently when it was discovered that the two species are incapable of breeding.

🌴 What eats a finless porpoise?

Predators. Given the habitat of the finless porpoise the most likely natural predator of these marine mammals are local sharks. Their large size (when compared to other local ocean animals) and coastal lifestyle makes them less of a target for other potential predators.

🌴 What is a yangtze finless porpoise?

  • The Yangtze finless porpoise ( N. asiaeorientalis) was formerly considered a subspecies, but is now thought to be a distinct species. The Korean communities of the porpoise are sometimes known as sanggwaengi ( Korean: 상괭이) and the Japanese communities, particularly the subspecies N. p. sunameri, as sunameri ( Japanese: 砂滑 ).

3 other answers

So the porpoise had apparently been in good health immediately before its death, which appeared to have been acute and sudden, but there was no obvious evidence of trauma, as would be expected from by-catch in fishing gear or from a boat collision. It is therefore most likely that this animal was killed by electro-fishing.

Overfishing is the main factor that contributes to the decrease in finless porpoises’ food supply, but pollution and ship movement are factors as well. What WWF Is Doing © Michel Gunther / WWF-Canon WWF works to protect the Yangtze River, home to some of China's most spectacular natural scenery.

The death of Finless Porpoises is not an accident. When humans are competing for food with Finless Porpoises, we kill them indirectly by breaking their food chain. Ten years ago, there were more than 120 river creatures for Finless Porpoises to eat, now less than 20 remain.

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We've handpicked 21 related questions for you, similar to «What is killing finless porpoise?» so you can surely find the answer!

Is a finless porpoise a whale?

Being amongst the smallest species of whale, dolphin and porpoise the diet of the Indo-Pacific finless porpoise is composed of some of the smaller examples of bottom-dwelling fish, crabs, shrimp, octopus, squid and even cuttlefish.

Where are yangtze finless porpoise found?

The Yangtze finless porpoise is found in the main Yangtze river channel in central and eastern China, and in two lakes, naturally connected to the river, in the central Yangtze - Dongting and Poyang.

Where can you find finless porpoise?

Finless porpoises live in the Yangtze River in China, where they can be found in the main river channel and two large lakes connected to the river – Poyang and Dongting and in two oxwbow lakes, Tien ezhou and He wangmiao, where they have been recently translocated to.

Where is the finless porpoise located?

The Yangtze River, which is the habitat of the Yangtze finless porpoise, is located in China and circulates through the following cities: Yibin, Luzhou, Chongqing, Wanzhou, Yichang, Jingzhou, Yueyang, Wuhan, Jiujiang, Anqing, Tongling, Wuhu, Nanjing, Zhenjiang, Nantong and Shanghai.

Why are they called finless porpoise?

Finless porpoises are named for and distinguished by the absence of a dorsal fin. Instead of this fin, there is a small ridge on their backs that starts just behind their blowhole and extends as far as the tail flukes. Small circular bumps called tubercles cover the ridge.

Why are yangtze finless porpoise dying?

Finless porpoises need an abundant food supply for survival. The destruction of the Baiji dolphin food supply was central to its extinction. Overfishing is the main factor that contributes to the decrease in finless porpoises' food supply, but pollution and ship movement are factors as well.

Why is it called finless porpoise?

As its name suggests, the finless porpoise lacks a dorsal fin. Instead the animal possesses a ridge, or “groove”, that runs down the middle of its back (as seen above).

Why should we save finless porpoise?

Why the Yangtze finless porpoise is so important

By protecting these porpoises we're helping preserve healthy rivers and lakes – which a lot of people heavily rely on for food, provision of clean water and as source of livelihoods.

What are some interesting facts about finless porpoise?
  • Interesting Facts. There are 2 subspecies of Narrow-Ridged Finless Porpoise, N.a. asiaorientalis (Yangtze River population) and N.a. sunameri (East Asian Finless Porpoise). The Yangtze River subspecies of narrow-ridged finless porpoise shared its habitat with another cetacean, the Baiji dolphin, until the extinction of that species in 2006.
What is the lifespan of a finless porpoise?

According to reports, the life span for these animals can be as long as 20 years. However, finless porpoises need to wait at least a day from the start of the signs of birth until the actual delivery. The delivery process lasts for nearly three hours.

Are indo-pacific finless porpoise dangerous animals?

For Dr Porter, who studied aquatic bioscience at Glasgow University and completed her doctorate in marine mammals at the University of Hong Kong, Hong Kong’s enigmatic finless porpoises and the famous Chinese White (or pink) Dolphin have become her life work. The problem of decomposition for scientists is a serious one.

Do indo-pacific finless porpoise have teeth?
  • Porpoises have strong flippers and teeth with spade-shaped tips – their dentition is actually a way they differ from dolphins. A porpoise has a rounded head and a triangular-shaped dorsal fin. However, as their name suggests, the finless species of porpoise do not have fins.
How big can a finless porpoise get?
  • Finless porpoises can grow to as much as 2.27 m (7 ft 5 in) in length, and can weigh up to 72 kg (159 lb), although most are rather smaller. The flippers are moderately large, reaching up to 20% of the total body length.
How can we save the finless porpoise?
  • Stop hunting – whether used opportunistically as a result of bycatch, or the victims of directed hunts, the narrow-ridged finless porpoise is under serious threat. Entanglement in fishing gear – their preference for nearshore waters brings them into close contact with a variety of fishing gears.
How fast can a finless porpoise swim?

Considering the average swimming speed of finless porpoises as 4.57 ± 0.50 km/h (Akamatsu et al.

How long does a finless porpoise live?

LIFE SPAN: 10 - 20 years. Common Name: Finless porpoise. Category: Porpoise. Family: Phocoenidae. Scientific Name: Neophocaena phocaenoides.

How many yangtze finless porpoise are left?

There are 1,040 finless porpoises left in the Yangtze. The annual decline rate of 13 percent means these animals are expected to become extinct within 10 years if there are no effective conservation actions in place.

Is the yangtze river finless porpoise endangered?
  • Both species are considered vulnerable; however, the population of the Yangtze finless porpoise ( N. asiaeorientalis asiaeorientalis ), a subspecies of narrow-ridged finless porpoise found only in the Yangtze River, has declined significantly since 1984. It was classified as critically endangered by the IUCN in 2013.
When did the finless porpoise become endangered?

By the 1990s, the population was down to around 100, and a 2006 survey deemed the animal functionally extinct. It was the first extinction of large vertebrate in more than 50 years, and the first extinction caused by human activity.

When was the finless porpoise become endangered?

By the 1990s, the population was down to around 100, and a 2006 survey deemed the animal functionally extinct. It was the first extinction of large vertebrate in more than 50 years, and the first extinction caused by human activity.

Where do indo-pacific finless porpoise live?

The Finless porpoise inhabits the coasts of eastern and southern Asia from the Arabian Gulf eastwards to Japan and southwards to Java, Indonesia. It inhabits warm temperate and tropical coastal waters, preferring waters above sandy or soft bottoms, such as mangroves, shallow bays and estuaries. It is also found in large rivers.