Fin whales, such as the one pictured here, have taken up residence in New York waters.

图中所示的长须鲸，是生活在纽约市外水域的鲸鱼品种之一。

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Fin whales make pulsed sounds at around 20 Hertz, while humpbacks sing at much higher frequencies.

长须鲸的声音频率是20赫兹，座头鲸更高一点。

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The quota would allow the killing of 150 fin whales and more than 100 minke whales each year for five seasons.

此配额允许每年五季捕杀150头长须鲸和100多头小须鲸。

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There also are about 2, 000 fin whales in the northeast Pacific, and about 2, 500 humpbacks.

MSN: Feds to reroute SF Bay ships to protect whales

There is no quota for fin whales, another target of Icelandic vessels.

BBC: Iceland minister warns on whaling

While fin and humpback whales have seen gains in population since the 1990s, the number of blues has declined or remained flat.

MSN: Feds to reroute SF Bay ships to protect whales