Protecting migratory fish from predators

New hiding places for young fish

Translated from Dutch NOS TV today:

Human interventions have made it more difficult for fish to swim to the sea through rivers, canals and lakes. Sluices, weirs and dams are obstacles to the movement of fish between fresh and salt water and vice versa.

To keep the migration going, fish passages have been built near obstacles, but these lead to new problems. The passages are so small that fish have to wait for each other causing traffic jams. Especially small fish like juvenile eels and three-spined sticklebacks that way are easy prey for predatory fish and birds.

In and around the North Sea Canal something is done about that. In the vicinity of the passages concrete pots with holes are placed, in which small fish may hide. Today, the first pots are placed in the Noorder IJplas lake.

10 thoughts on “Protecting migratory fish from predators

  1. Pingback: Tiggywinkles, Tigers and Tunnels – Animalista Untamed

  2. Pingback: Journey to begin with one step | From guestwriters

  3. Pingback: Dog saves duckling from magpie attack, video | Dear Kitty. Some blog

  4. Pingback: Shark egg with living embryo found | Dear Kitty. Some blog

  5. Pingback: Great cormorant eats eel, video | Dear Kitty. Some blog

  6. Pingback: Marine biology at gas platform | Dear Kitty. Some blog

  7. Pingback: Great white shark video | Dear Kitty. Some blog

  8. Pingback: African leopards, new study | Dear Kitty. Some blog

  9. Pingback: Birdlife and bird photography news | Dear Kitty. Some blog

  10. Pingback: Helping Australian freshwater fish | Dear Kitty. Some blog

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.