The effect of net spread on the capture efficiency of a demersal survey trawl used in the eastern Bering Sea

Fisheries Research

Volumn 74, Issue 1-3, 2005, Pages 86-95

  Von Szalay, Paul G ^a   Somerton, David A ^a  

^a ALASKA FISHERIES SCIENCE CENTER   (United States)

Author keywords

Bottom contact; Bottom trawls; Capture efficiency; Catch per unit effort; Footrope; Net spread; Relative abundance estimates; Trawl surveys

Indexed keywords

ABUNDANCE ESTIMATION; CATCH PER UNIT EFFORT; DEMERSAL FISH; EFFICIENCY MEASUREMENT; RELATIVE ABUNDANCE; SURVEY; TRAWL NET;

BERING SEA; OCEANIC REGIONS; PACIFIC OCEAN; WORLD;

ASTERIAS; ASTERIAS AMURENSIS; ASTEROIDEA; LEPIDOPSETTA POLYXYSTRA; PARAPLAGUSIA BILINEATA; PLEURONECTES PLATESSA; PLEURONECTES QUADRITUBERCULATUS;

EID: 20444411923     PISSN: 01657836     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.fishres.2005.04.007     Document Type: Article

References (20)

1. A.A. Abookire, and B.L. Norcross Depth and substrate as determinants of distribution of juvenile flathead sole (Hippoglossoides elassodon) and rock sole (Pleuronectes bilineatus), in Kachemak Bay Alaska J. Sea Res. 39 1-2 1998 113 123
2. Akaike, H., 1973. Second International Symposium on Information Theory, Chapter Information Theory and An Extension of Maximum Likelihood Principle. Akademia Kiado, Budapest, pp. 267-281.
3. C.G. Bublitz Quantitative evaluation of flatfish behavior during capture by trawl gear Fish. Res. 25 1996 293 304
4. K.P. Burnham, and D.R. Anderson Model Selection and Inference: A Practical Information-Theoretic Approach 1998 Springer NY p. 353
5. A. Engås, and E. Ona A method to reduce survey bottom trawl variability Int. Coun. Explor. Sea CM 1991 B:39
6. O.R. Godø, and A. Engås Swept area variation with depth and its influence on abundance indices of groundfish from trawl surveys J. Northwest Atl. Fish. Sci. 9 1989 133 139
7. P.A. Koeller Approaches to improving groundfish survey abundance estimates by controlling the variability of survey gear geometry and performance J. Northwest Atl. Fish. Sci. 11 1991 51 58
8. Nebenzahl, D., 2001. 2001 Bottom Trawl Survey of the Eastern Bering Sea Continental Shelf. U.S. Dep. Commer., NOAA Tech. Memo, NMFS-AFSC-7, 165 pp.
9. D.G. Nichol Annual and between-sex variability of yellowfin sole, Pleuronectes asper, spring-summer distributions in the eastern Bering Sea Fish. Bull. 96 1998 547 561
10. Ronholt, L.L., Shaw, F.R., Wilderbuer, T.K., 1981. Trawl Survey of Groundfish Resources Off the Aleutian Islands, July-August 1980. U.S. Dep. Commer., NOAA Tech. Memo., NOAA/NMFS, Seattle, WA, 87 pp.
11. Rose, C.S., 1993. Trawl width variation and its effects on groundfish trawl survey results. Ph.D. Dissertation. University of Washington, Seattle, WA, 218 pp.
12. Rose, C.S., Walters, G.E., 1990. Trawl width variation during bottom trawl surveys: causes and consequences. Proceedings of the Symposium on Application of Stock Assessment Techniques to Gadids. INPFC, Bulletin No. 50, pp. 57-67.
13. C.S. Rose, and E.P. Nunnallee A study of changes in groundfish trawl catching efficiency due to differences in operating width, and measures to reduce width variation Fish. Res. 36 1998 139 147
14. D.A. Somerton, and K.L. Weinberg The affect of speed through the water on footrope contact of a survey trawl Fish. Res. 53 2001 17 24
15. D.A. Somerton, and P. Munro Bridle efficiency of a survey trawl for flatfish Fish. Bull. 99 2001 641 652
16. D.A. Somerton Do Pacific cod (Gadus macrocephalus) and walleye pollock (Theragra chalcogramma) lack a herding response to the doors, bridles, and mudclouds of survey trawls? ICES J. Mar. Sci. 61 2004 1186 1189
17. W.N. Venables, and B.D. Ripley Modern Applied Statistics With S-Plus 1994 Springer-Verlag, New York Inc. NY p. 462
18. K.L. Weinberg, D.A. Somerton, and P.T. Munro The effect of trawl speed on the footrope capture efficiency of a survey trawl Fish. Res. 58 2002 303 313
19. K.L. Weinberg Change in the performance of a Bering Sea survey trawl due to varied trawl speed Alaska Fish. Res. Bull. 10 1 2003 42 49
20. C.I. Zhang, T.K. Wilderbuer, and G.E. Walters Biological characteristics and fishery assessment of Alaska plaice, Pleuronectes quadrituberculatus, in the eastern Bering Sea Mar. Fish. Rev. 60 4 1998 16 27