How deep can dolphins dive?
The dolphin’s deepest dive is reported for a bottlenose dolphin of 300m that was proved by the Tuffy who is the dolphin’s trainer from US Navy. The various bottlenose dolphins are survives in the moderately shallow water and they do not dive very deep. By area in the Sarasota the dolphins squander a substantial time under water usually less than two meters.
Other dolphins and whales species can dive much greater from any other species. The Globicephala melaena that is also called pilot whale can dive more than 600m and the Physeter macrocephalus which is called sperm whale is founded to be dive almost 900m in depth. The most recent research on the behavior of the Delphinapteurs leucas (belugas) is stated that they habitually dive for 800m in depth and the deepest dive of beluga is recorded for 1250m.
Do dolphins drink salt water?
The commonly dolphins are lives on the ocean and the water of the ocean is too salty and not considerable for drink. If the dolphins drink salty sea water, they would need to consume it more to get rid of the salty water and they drink it at first place but they avoid. The most of their water needs comes from the food that they consume such as squid and fish. When the dolphins metabolize their fat, in the result water is released during the metabolism process and their kidneys are able and adapted to retaining water as much as possible. Even though the dolphins are live in water but they live as the desert animals even with no direct source of filtered water.
Why do dolphins get stranded on beaches?
If only a one single dolphin or whale strands, it’s consider to be a very sick and exhausted animal. These types of animal repeatedly suffered from some infections (pneumonia) which is at all times and much of parasites (a worm in the nasal passages) are very common in dolphins. These animals rehabilitated for sometimes but most often they are sick and cannot recover from it.
Some types of dolphins and whales rarely strand in groups and when they are stranding of two or more individuals, is called a mass stranding. To explain the mass stranding occurrence, some numerous theories are established and not a single theory explains the mass stranding frequently. In most cases it will be a cause of combination.
Some of most common theories present the reason and explanation as:
- The deep water marine mammals are considered to be the most victimize animal of mass stranding. As they can’t see the slanting sandy coast properly with its sonar, they only feel the sense the beach when they are already in thread and become fright and run aground.
- Dolphins’ perhaps navigating the magnetic earth field and when the magnetic field is becomes disturbed, this will occur in some certain situations and the individuals in the groups gone astray in the beach.
The group leader of some high community species becomes sick and sponge down on ashore and the other members of the group stay close and may becomes in strand along with the group leader.
The European Seabass is the first and foremost ocean going fish that occasionally enters in the salty and fresh water. The European seabass also known as “sea dace” and regarded as the table fish and also marked with the “loup de mar”, “robalo”, “Mediterranean seabass”, “spigola”, “lunina” and “bronzino”. There are certain debates on the origin of the word “seabass” as the traditional word was “Bass” but it had been changed due to the cooking programs popularities and the expansion of the restaurant, both adopted the slogan Seabass.
The European bass is belongs to the Moronidae family and their name Dicentrarchus derives from the existence of their 2 dorsal fins. The fish one side has silver colored and shows white belly and serrated and spine and grow to the length of 1 meter and rise to the weight of 15 kg.
Distribution and habitat
Their habitats included the lagoons, estuaries, rivers and coastal waters. It can see in the sea water around the Europe, eastern Atlantic Ocean and in the Mediterranean Sea. The European seabass is mostly hunted at the night and feeding the small fishes such as crustaceans, polychaetes, and cephalopods.
Fisheries and aquaculture
The annual catches of the European seabass is the comparatively the modest against other species and its fluctuated between the number of 8500 tons to 11,900 tons from 2000 to 2009. The reported catches begin from the Atlantic Ocean and France is reporting the highest catches in the world. Italy is also been reported for the largest catches but has been exceed by the Egypt in the recent years.
The European seabass has becomes the victims of increasing of commercial fishing and get focused by the UK conservative efforts. The Ireland republic has established the strict law against the hunting of bass and all the commercial fishing is banned and some numerous restrictions are placed.
The European seabass is the first type of fish that commercially farmed after the salmon in Europe. The seabass was historically cultured in the tidal reservoirs and in coastal lagoons before the mass production techniques was established in 1960s. The European seabass is the most significant commercial fish that extensively cultured in the Mediterranean. The most important farming countries of seabass are the Turkey, Spain, Greece, Italy, Croatia and Egypt and it annual production is reported 120,000 tons in 2010.