Question: Both the mouth of the Atran and which sea flow into Kattegat?
Context: The East Australian Current (EAC) is the southward western boundary current that is formed from the South Equatorial Current (SEC) crossing the Coral Sea and reaching the eastern coast of Australia.  At around 15° S near the Australian coast the SEC divides forming the southward flow of the EAC.  It is the largest ocean current close to the shores of Australia.  The EAC reaches a maximum velocity at 30° S where its flow can reach 90 cm/s.  As it flows southward it splits from the coast at around 31° to 32° S. By the time it reaches 33° S it begins to undergo a southward meander while another portion of the transport turns back northward in a tight recirculation.  At this location the EAC reaches its maximum transport of nearly 35 Sv.  The majority of the EAC flow that does not recirculate will move eastward into the Tasman Front crossing the Tasman Sea just north of the cape of New Zealand.  The remaining will flow south on the EAC Extension until it reaches the Antarctic Circumpolar Current.  The Tasman Front transport is estimated at 13 Sv.  The eastward movement of the EAC through the Tasman Front and reattaching to the coastline of New Zealand forms the East Auckland Current.  The EAC also acts to transport tropical marine fauna to habitats in sub-tropical regions along the south east Australian coast. A mouth bar is a bar in a river that is typically created in the middle of a channel in a river delta.  It is created by a positive feedback between mid-channel deposition and flow divergence.  As the flow diverges near the ocean, sediment settles out in the channel and creates an incipient mouth bar.  As flow is routed around the incipient bar, additional sediment is deposited on the incipient bar.  This continued process results in the formation of a full-fledged mouth bar, which causes the channel to bifurcate.  This continued process leads to the characteristic fractal tree pattern found in some prograding river-dominated deltas. A geostrophic current is an oceanic flow in which the pressure gradient force is balanced by the Coriolis effect.  The direction of geostrophic flow is parallel to the isobars, with the high pressure to the right of the flow in the Northern Hemisphere, and the high pressure to the left in the Southern Hemisphere.  This concept is familiar from weather maps, whose isobars show the direction of geostrophic flow in the atmosphere.  Geostrophic flow may be either barotropic or baroclinic.  A geostrophic current may also be thought of as a rotating shallow water wave with a frequency of zero.  The principle of geostrophy is useful to oceanographers because it allows them to infer ocean currents from measurements of the sea surface height (by combined satellite altimetry and gravimetry) or from vertical profiles of seawater density taken by ships or autonomous buoys.  The major currents of the world's oceans, such as the Gulf Stream, the Kuroshio Current, the Agulhas Current, and the Antarctic Circumpolar Current, are all approximately in geostrophic balance and are examples of geostrophic currents. The Baltic Sea is a sea of the Atlantic Ocean, enclosed by Scandinavia, Finland, the Baltic countries, and the North and Central European Plain.  It includes the Gulf of Bothnia, the Bay of Bothnia, the Gulf of Finland, the Gulf of Riga, and the Bay of Gdańsk.  The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude.  A mediterranean sea of the Atlantic, with limited water exchange between the two bodies, the Baltic Sea drains through the Danish islands into the Kattegat by way of the straits of Øresund, the Great Belt, and the Little Belt. The Kattegat (] ; Swedish: "Kattegatt" , ] ) is a 30000 km2 sea area bounded by the Jutlandic peninsula in the west, the Danish straits islands of Denmark to the south and the provinces of Västergötland, Scania, Halland and Bohuslän in Sweden in the east.  The Baltic Sea drains into the Kattegat through the Danish Straits.  The sea area is a continuation of the Skagerrak and may be seen as a bay of the Baltic Sea or the North Sea or, as in traditional Scandinavian usage, neither of these. Ätran is a Swedish river.  The river is about 240 km long, and has its source in Gullered, Västergötland, at a height of 332 m above sea level.  The river has its mouth in Falkenberg, Halland, where the river enters Kattegat. Burning mouth syndrome (BMS) is a burning sensation in the mouth with no underlying dental or medical cause.  No related signs of disease are found in the mouth.  People with burning mouth syndrome may also have a dry mouth sensation where no cause can be found such as reduced salivary flow, tingling in the mouth, or an altered taste or smell. Liman (Лиман) is a Hellenized Russian adaptation of the Medieval Greek λιμένας ("limenas") meaning "bay" or "port".  The term is usually used in place of the more universal "delta", with its implication of landform, to describe wet estuaries in the Black Sea and the Sea of Azov.  A synonymous term guba (губа) is used in Russian sources for estuaries of the Russian shores in the north.  A "liman" forms at the widening mouth of a river, where flow is blocked by a bar of sediments.  A "liman" can be maritime (the bar being created by the current of a sea) or fluvial (the bar being created by the flow of a bigger river at the confluence). The Limfjord (common Danish: "Limfjorden" ] , in north Jutlandish dialect: "Æ Limfjord") is a shallow part of the sea, located in Denmark where it is regarded as a fjord ever since the Vikings.  However it has inlets both from the North Sea and Kattegat and hence separates the island of North Jutlandic Island (Danish: "Nørrejyske Ø", which includes the old provinces "Vendsyssel", "Han herred" and "Thy") from the rest of the Jutland Peninsula.  It extends from Thyborøn Channel on the North Sea to Hals on the Kattegat.  It is approximately 180 kilometres long and of an irregular shape with numerous bays, narrowings, and islands, most notably Mors, and the smaller ones Fur, Venø, Jegindø, Egholm and Livø.  It is deepest at Hvalpsund (24 metres).  The Limfjord is not a fjord in the English geological sense — in Danish, as in Norwegian, the term "fjord" can refer to a wide range of waterways. Kattegatcentret (The Kattegat Center) is a public aquarium in Grenå, Denmark.  Its name refers to the Kattegat sea.
Answer: The Baltic Sea