The Forth International Stock Enhancement & Searanching


Welcome to the Forth International Symposium on Stock Enhancement and Sea Ranching  (ISSESR) website. This symposium continues an already rich tradition of highlighting and encouraging further development of the science underlying effective marine stock enhancement, restocking and sea ranching to replenish or augment fisheries and wild stocks. Background on this symposium series and info on the previous symposia can be accessed here. Links to peer-reviewed Published Proceedings from all of the symposia in this series are also available on the ISSESR homepage.

The Fourth International Symposium on Stock Enhancement and Sea Ranching was April 21st - April 23rd, 2011, at Shanghai Ocean University (formerly Shanghai Fisheries Univeristy), Shanghai, China. The symposium was held with the 9th Asian Fisheries and Aquaculture Forum.
Oral Program, Posters and Symposium Book

The website for the 5th ISSESR is now available; click here for information about the fifth symposium in this series.


The Forth International Symposium on Stock Enhancement and Sea Ranching -- At a Glance

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The 4th International Symposium on Stock Enhancement and Sea Ranching is coming to China, a region where very large scale releases of cultured fishes and invertebrates are being made and have been made for the last 30 years. Large-scale releases highlight the need to understand the consequences for wild populations and ecosystem function so that releases can be designed and implemented to meet their objectives in a responsible way. Viable and responsible approaches that have met their objectives in the past may also need to be adapted to meet the challenges of changing climate and changing global economy. The Themes for the 4th ISSESR are being developed to take these major issues for restocking, stock enhancement and sea ranching into account. The Themes may be modified over time with feedback from the committee members and interested participants and after abstracts have been submitted. Currently, the Themes being considered for the Symposium are:

  1. The role of releases of cultured animals in fisheries management: integrative evaluation.
  2. Modelling and assessing the effectiveness of releases for fisheries management and conservation.
  3. Governance and the socio-economics of release programs.
  4. Developing optimal release strategies .
  5. Interactions among wild and released animals and the ecological and genetic implications.
  6. Enhanced knowledge on populations and ecosystems from releases of cultured animals.
  7. Adapting to change: climate, habitat and socio-economics.


The First and Second International Symposiums on Stock Enhancement and Sea Ranching in Norway in 1997 and Japan in 2002 were instrumental in highlighting the technology and approaches needed to release hatchery-reared juveniles in a responsible way.

The Third International Symposium was held in Seattle, USA in September 2006 and was a great success. It also provided the opportunity to refine the technologies needed to achieve responsible practice, and identify how our discipline is contributing to a better understanding of the biological processes that underpin fisheries. The peer-reviewed Proceedings were published in 2008 in Volume 16 (1-3) of Reviews in Fisheries Science.

Thanks to those who joined us in Shanghai, at the Fourth International Symposium on Stock Enhancement and Sea Ranching, to help take this promising field of fisheries science to the next level. The peer-reviewed Proceedings were published in 2013 in Volume 21 (3-4) of Reviews in Fisheries Science.