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Landing sling use increases data accuracy and sampling opportunities for large marine fishes captured during fishery-independent longline surveys
Grace, M.A.; Driggers III, W.B.; Forrester, J.; Hopkins, N. (2007). Landing sling use increases data accuracy and sampling opportunities for large marine fishes captured during fishery-independent longline surveys. Fish. Res. 88(1-3): 146-149. dx.doi.org/10.1016/j.fishres.2007.07.016
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836, more
Peer reviewed article  

Available in  Authors 

Keywords
    Longlining; Marine fish; Marine

Authors  Top 
  • Grace, M.A.
  • Driggers III, W.B.
  • Forrester, J.
  • Hopkins, N.

Abstract
    For fisheries research the lengths and weights of fishes are important data elements used to characterize biological dynamics; however, in order to collect accurate lengths and weights there can be stress and mortality issues due to handling methods. In particular, during coastal and oceanic longline projects, collecting accurate biological data from large animals is often problematic due to associated landing and handling difficulties. To improve the accuracy of biological data collected from large specimens and decrease survey-induced stress and mortalities during longline surveys, a portable landing sling was designed for use with shipboard hydraulic cranes. The landing sling enables researchers to improve biological data quality through increased opportunities to collect accurate lengths and weights, take detailed photographs, and conduct non-invasive biological sampling with minimal physical damage to large fishes captured. Thus, using a landing sling allows researchers to collect essential biological data while being responsibly conservative.

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