KLA - Live Hauling of Fish

Description

In certain markets, live fish can be sold for substantially higher prices than fresh dressed fish. A significant live-haul industry has developed in the U.S. and fish are commonly hauled 1,500-2,000 miles (25-30 hours) to market. The most common species hauled are tilapia, channel catfish, and rainbow trout; a smaller amount of marine rockfish, hybrid striped bass, and carp are also hauled. The most significant advancement in hauling technology in the last 20 years has been the use of bottled oxygen gas or liquid oxygen to maintain adequate dissolved oxygen levels. These types of systems can maintain significantly higher DO levels than systems using air. Some common stressors include harvest and loading procedures (pumping or out of water transfer), shaking as the transport vehicle is moving, low frequency sound from the vehicle and water treatment systems, crowding, and poor water quality (high ammonia and carbon dioxide levels, low dissolved oxygen), high light levels, or extreme water temperature. The physical shape and construction of the hauling unit may have an important impact on localized low DOs, physical damage to the fish, and survivability. Very little information has been published on the chemical and physical conditions in transport systems during long-distance transport and this limited data may not be representative of current commercial systems. This research will be conducted with NWFSC staff in cooperation with private fish farmers in the Pacific Northwest. Specific sub-objectives will include the following: (1) Documentation of water quality during transport and impact on mortality and product quality (2) Design of efficient aeration systems for oxygen transfer and carbon dioxide stripping (3) Determination of the impact of transport tank design and aerator type on the thermal balance during hauling. The impact of this project will be increased survival and product quality of transported fish as a result of adopting the recommended protocols and utilization of the models. Project outputs will include peer-reviewed publications, popular publications, and conference presentations. The oxygen transfer coefficient (KLa) will be determined by deaeration with nitrogen gas followed by aeration (0.60 slpm) using a YSI ProODO dissolved oxygen meter. The KLa value will be computed from the ASCE Standard for the Measurement of Oxygen Transfer in Clean Water http://cedb.asce.org/cgi/WWWdisplay.cgi?156576 The measured KLa values will be reported at 20C using a theta = 1.047.

Resources

Name Format Description Link
0 The oxygen transfer coefficient (KLa) was determined by deaeration with nitrogen gas followed by aeration (0.60 slpm) using a YSI ProODO dissolved oxygen meter. https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/live_hauling_of_fish_dissolved_oxygen_transfer_coefficient_kla
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/17996
0 NWFSC Dataset Information page. The oxygen transfer coefficient (KLa) will be determined by deaeration with nitrogen gas followed by aeration (0.60 slpm) using a YSI ProODO dissolved oxygen meter. The KLa value will be computed from the ASCE Standard for the Measurement of Oxygen Transfer in Clean Water http://cedb.asce.org/cgi/WWWdisplay.cgi?156576 The measured KLa values will be reported at 20C using a theta = 1.047. https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/5103
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nwfsc/dmp/pdf/17996.pdf
0 The oxygen transfer coefficient (KLa) was determined by deaeration with nitrogen gas followed by aeration (0.60 slpm) using a YSI ProODO dissolved oxygen meter. https://www.webapps.nwfsc.noaa.gov/apex/parr/live_hauling_of_fish_dissolved_oxygen_transfer_coefficient_kla/data/page/

Tags

  • idaho
  • aquaculture
  • migrated from resource enhancement and utilization technologies division
  • northwest fisheries science center
  • water quality
  • nwfsc montlake
  • doc/noaa/nmfs/nwfsc
  • national marine fisheries service
  • noaa. u.s. department of commerce
  • in-situ instrument - automated dissolved oxygen sensor
  • montlake
  • heat transfer
  • hagerman valley
  • gas transfer

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