P. BOREALIS 



P. GONIURUS 



P.HYPSINOTUS 



OTHER SHRIMP 



Figure 6. — Relative abundance of species of shrimp taken 

 in (A) bottom trawling, (B) surface-to-bottom pot fishing, 

 and (C) bottom pot fishing, Kachemak Bay, Alaska, 

 April-May 1964. 



ADVANTAGES AND DISADVANTAGES OF 

 POT FISHING 



Surface -to-bottom pot fishing proved to 

 be a suitable method for sampling pandalid 

 shrimp at various depths both on and off 

 the bottom in Kachemak Bay, Alaska. This 

 type of gear is especially useful in studying 

 the vertical migrations of pandalids be- 

 cause it provides a method of fishing with 

 simultaneous and uniform effort at several 

 vertical levels. In addition, the surface -to- 

 bottom pots offer the best method available 

 for obtaining representative samples of shrimp 

 in untrawlable areas. 



The most serious deficiency of this method 

 is that its effectiveness depends on the vul- 

 nerability of the shrimp to baited pots. Al- 

 though most pandalid shrimp entered the 

 pots, though perhaps to varying de- 

 grees, one species was not taken by pot 

 fishing. Future work in the field and 

 laboratory, will be necessary to deter- 

 mine the vulnerability of the various 

 species to baited pots. 



LITERATURE CITED 



ALLEN, J. A. 



1963. Observations on 

 Pandalus montagui 



the biology of 

 [Crustacea: De- 



capoda]. J. Mar. Biol. Ass. U.K. 43: 

 665-682. 

 ARON, WILLIAM. 



1959. Midwater trawling studies inthe North 

 Pacific. Limnol. Oceanogr. 4: 409-418. 

 BUTLER, T. H. 



1964. Growth, reproduction, and distribu- 

 tion of pandalid shrimps in British 

 Columbia. J. Fish. Res. Bd. Can. 21: 

 1403-1452. 

 DAVIS, F. M. 



1958. An account of the fishing gear of 

 England and Wales. Great Britain Min. 

 Agr., Fish., Food., Fish. Invest., ser. 

 2, 21(8), 165 pp. 

 DOW, ROBERT L. 



1963. Fluctuations in Maine shrimp land- 

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ELLSON, J. G., and ROBERT LIVINGSTONE, 

 JR. 

 1952. The John N. Cobb's shellfish ex- 

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 HARRY, GEORGE Y., JR. 



1964. The shrimp fishery of Alaska. Proc. 

 Gulf Carib. Fish. Inst., 16th Annu. 

 Sess.: 64-71. 



HJORT, JOHN, and JOHAN T. RUUD. 



1938. I. Deep-sea prawn fisheries and their 

 problem. Norsk. Vidensk.-Akad., Oslo, 

 Hvalrad. Skr. 17: 1-144. 

 HYNES, FRANK W. 



1929. Shrimp fishery of southeast Alaska. 

 [U.S.] Bur. Fish. Rep. U.S. Comm. 

 Fish., 1929, append. 1, 1-18 pp. 

 MATTHEWS, L. HARRISON 



1934. The sea fish and fisheries of the 

 Bristol District. Annu. Rep. Proc. 

 Bristol Nat. Soc, ser. 4, 7: 442-462. 

 McBRIDE, ROLAND, and LOUIS BARR. 



1967. A shrimp pot for experimental fish- 

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 MISTAKIDIS, M. N. 



1957. The biology of Pandalus montagui 

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 52 pp. 

 NANSEN, FRIDTJOF. 



1924. Blant sel og bj^rn. Minforste Ishavs- 

 ferd. Jacob Dybwads Forlag, Chris- 

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 RATHJEN, WARREN F., and L. A. FAHLEN. 



1962. Progress report on midwater trawling 

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 coast in 1961 by M.V. Delaware. Com. 

 Fish. Rev. 24(11): 1-11. 



RONHOLT, LAEL L. 



1963. Distribution and relative abundance 

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 shrimps in the northeastern Pacific 

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 Sci. Rep. Fish. 449, ii + 28 pp. 



