You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Southampton

Context:
The geography of Southampton is influenced by the sea and rivers. The city lies at the northern tip of the Southampton Water, a deep water estuary, which is a ria formed at the end of the last Ice Age. Here, the rivers Test and Itchen converge. The Test—which has salt marsh that makes it ideal for salmon fishing—runs along the western edge of the city, while the Itchen splits Southampton in two—east and west. The city centre is located between the two rivers.

Question:
Which river is excellent for salmon fishing?

Test