Shellfish - Resources and Invaders of the North

Shellfish symposium

5-7 November 2019
Tromsø, Norway

Carsten Hvingel, IMR, Norway
Gordon Kruse, UAF, USA
Bernard Sainte-Marie, DFO, Canada

​Background and objectives

Shellfish are the diamonds of the sea. The mollusks and crustaceans that make up the shellfish group are a high-valued, high-quality food source and support substantial fisheries in boreal, subarctic and arctic areas. There is already a strong interest in both the North Pacific and the North Atlantic for shellfish resources, their population dynamics and their management, especially under changing environmental conditions.

The goal of this symposium is to discuss the role of cold-water shellfish both as a harvestable resource and as important ecosystem players in northern hemisphere cold marine ecosystem:

  • how should we exploit them sustainably?
  • can we explain the recent changes in distribution and population dynamics for e.g.  shrimp and snow crab, and what should be the management responses?
  • what are the ecological effects of invasive species, and should they be controlled by excessive harvests or managed for sustainability?
  • the ecosystem effects of the boom and bust of large shellfish populations are potentially massive; can these impacts be quantified?

Theme sessions

  1. Shellfish in new and changing environments
  2. Assessment and population dynamics of shellfish
  3. New ways harvesting of shellfish
  4. Managing shellfish fisheries
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Shellfish symposium

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