eurasian otter population

In some areas, a female Alaska sea otter's home range may include 8 to 16 km (5-10 mi.) During the 20th century, the otter population in Israel experienced a dramatic decline due to anthropogenic habitat alterations. The European Otter (Lutra lutra) is also known as the Eurasian River Otter, Common Otter and Old World Otter. for males and about 7 km (4.3 mi.) of coastline. for females. SCMP Amalissa Hall. The Eurasian otter is an elusive, solitary otter that has one of the widest distributions of all palearctic mammals, from Ireland to China and down to SoutheastAsia.Notwithstanding its large range,its population is declining in many countries in which it is not protected and in others its status is unknown. The European otter is the most widely distributed otter species being widely spread across Europe. It is a European member of the Mustelidae or weasel family and is typical of freshwater otters. The Eurasian otter (Lutra lutra) population in Sweden went through a drastic decline in population size between the 1950s and 1980s, caused mostly by anthropogenic factors such as high hunting pressure and the introduction of environmental toxic chemicals into the otter’s habitats. However, after the bans of PCBs and DDT in the 1970s, the population began to recover in the 1990s. Their skull is elongated and their snout crushed. Poo holds the key to Hong Kong’s dwindling otter population 9:11am, 23 Nov, 2020. In recent years several marine populations of sea otter, river otter and Eurasian otter have been hit by large oil spills, in well publicised incidents. Eurasian otters are the most widely distributed of the 13 otter species worldwide, from the western limits of Europe to Far East Asia, and well into the tropics. Straight line lengths for Eurasian otter home ranges in Sweden average about 15 km (9.3 mi.) On the other hand they weight around 11 kilograms. Main Characteristics of the Eurasian Otters ☑️. Prelims level : Eurasian Otters Mains level : NA Researchers conducting a study in Odisha’s Chilika Lake have found the presence of a viable, breeding population of Eurasian Otters, a fishing cat in the brackish water lagoon. Until as recently as 2016, the Indus flowing through the heart of Ladakh was thought to be the only confirmed river valley in India to host a population of Eurasian otters. As for their size, the Eurasian otters reach up to 69 centimeters in length, of which about 42 centimeters correspond to their tail. The Israeli population of Eurasian otter (Lutra lutra) marks the Palearctic southern boundary of the species’ distribution in the Levant. Sungwon Hong, Mirko Di Febbraro, Anna Loy, Phil Cowan, Gea-Jae Joo, Large scale faecal (spraint) counts indicate the population status of endangered Eurasian otters (Lutra lutra), Ecological Indicators, 10.1016/j.ecolind.2019.105844, 109, (105844), (2020). By far the most substantial was caused by the stranding of the Exxon Valdez, in March 1989, in the Prince William Sound of Alaska, which killed both sea and river otters. The European otter (Lutra lutra), also called the Eurasian otter, inhabits Europe, most of Asia and parts of North Africa.In the British Isles, they were common as recently as the 1950s, but became rare in many areas due to the use of chlorinated hydrocarbon pesticides, habitat loss and water pollution (they remained relatively common in parts of Scotland and Ireland). otter population from the mid-1950s.This was similar to changes observed in populations of various species of predatory birds and mammals,and led the authors to the conclusion that the decline in otters probably had the same cause – the introduction of cyclodiene pesticides (dieldrin and related compounds) in the mid-1950s. This article ‘Changes in the diet of a recovering Eurasian otter population between the 1970s and 2010’ was written by David Almeida, Gordon H. Copp, Laurence Masson, Rafael Miranda, Mizuki Murai and Carl Sayer of the Department Salmon & Freshwater Team, Cefas‐Lowestoft. The Eurasian otters have an elongated body, supported with small and short legs. A male's range often overlaps that of one or more females. Average about 15 km ( 9.3 mi. Eurasian otter home ranges in Sweden average about 15 km 4.3... About 7 km ( 5-10 mi. around 11 kilograms is also known as the Eurasian have! The 1990s, supported with small and short legs also known as the Eurasian otters have an elongated body supported. The species ’ distribution in the Levant family and is typical of freshwater otters Eurasian! Of the species ’ distribution in the Levant about 7 km ( 5-10 mi. spread Europe. The population began to recover in the Levant a female Alaska sea otter 's home range may include 8 16... 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