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At night organisms are in the top 100 metres of the water column, but during the day they move down to between 800 and 1000 meters. If organisms were to defecate at the surface it would take the fecal pellets days to reach the depth that they reach in a matter of hours.
The 38-kilometre (24 mi) long fjord stretches from the town of Alta in the south to the islands of Stjernøya and Seiland. The 200-kilometre (120 mi) long river Altaelva empties into the fjord at the town of Alta. At Stjernøya and Seiland islands, the fjord splits into two straits before emptying into the Norwegian Sea.
Electroreceptive animals use the sense to locate objects around them. This is important in ecological niches where the animal cannot depend on vision: for example in caves, in murky water, and at night. Electrolocation can be passive, sensing electric fields such as those generated by the muscle movements of buried prey, or active, the ...
Sognefjord in Norway, the longest fjord in Norway, [27] is a popular tourist attraction Eyjafjörður in north Iceland, Akureyri can be seen to the far right Killary Harbour, western Ireland New Zealand's Milford Sound Glacier in a fjord at Kenai Fjords National Park, Alaska Tysfjorden in Norway north of the Arctic Circle is located in the ...
The spawn (eggs) of a clownfish. The black spots are the developing eyes. Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, to spawn refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning. The vast majority of aquatic and ...
Citronen Fjord is an offshoot on the southern shore of Frederick E. Hyde Fjord. It is located in Hans Egede Land, 45 km (28 mi) from Cape John Flagler, at the fjord entrance. The fjord is roughly oriented in a north–south direction. It is only 4 km (2.5 mi) in length and there is no glacier discharging at the head of the fjord. [6]
Ark clams are distinct from other clams in having red blood pigments that facilitate the transport of oxygen to their tissues and enable them to inhabit more hypoxic environments. [1] Ark clams reach reproductive maturity when they are about twelve months old and about 20 mm long. The spawning cycle typically begins in the rainy season.
It is one of the largest and longest fjord systems in the world. [3] [4] [5] On the northern side of the mouth of the Scoresby Sound stands Ittoqqortoormiit, the only permanent settlement in the region, with a population of 469 (in 2010). The name of the sound honours English explorer William Scoresby, who in 1822 mapped the fjord area in ...