LIST OF PARTICIPANTS
Freshwater Crayfish 5:xi-xvi.

PREFACE
Freshwater Crayfish 5:xvii - xix.

STURE ABRAHAMSSON MEMORIAL LECTURE
1.  An ecologist's approach to dealing with the loss of Astacus astacus.
by Per Brink
Freshwater Crayfish 5:xxi - xxxviii.


SECTION I.  GENERAL PHYSIOLOGY AND BIOLOGY OF CRAYFISH

2.  On the sexual dimorphism and condition index in the crayfish, Astacus astacus L. in Finland.
by Ossi V. Lindqvist and Erkki Lahti
Freshwater Crayfish 5:3-11.

3.  Dimorphism in the British Crayfish Austropotamobius pallipes (Lereboullet).
by W.J. Thomas
Freshwater Crayfish 5:12-17.

4.  On the reproductive cycle of the crayfish Astacus astacus L. in Finland.
by Erkki Lahti and Ossi V. Lindqvist
Freshwater Crayfish 5:18-26.

5.  Methodological considerations for quantitative determination of consumption for the crayfish Pacifastacus leniusculus.
by Jane C. Rundquist and Charles Goldman
Freshwater Crayfish 5:27-42.

6.  Respiration and ionoregulation in the euryhaline crayfish Pacifastacus leniusculus on exposure to high salinity: an overview.
by Michle G. Wheatly and B.R. McMahon
Freshwater Crayfish 5:43-55.

SECTION II.  ACIDIFICATION PROBLEMS OF CRAYFISH

7.  Response of acid stress upon the oxygen uptake in eggs of the crayfish Astacus astacus L.
by Magnus P. A. Appelberg
Freshwater Crayfish 5:59-70.

8.  Acid toxicity and physiological responses to sub-lethal acid exposure in crayfish.
by B.R. McMahon and D.O. Morgan
Freshwater Crayfish 5:71-85.

9.  Effects of hypoxia on the haemolymph of the freshwater crayfish, Astacus astacus L., in neutral and acid water during the intermolt period..
by T. Jrvenp, M. Mikinmaa, K. Westman and A. Soivio
Freshwater Crayfish 5:86-97.

10.  Response of the crayfish Orconectes virilis to experimental acidification of a lake with special reference to the importance of calcium.
by Robert L. France
Freshwater Crayfish 5:98-114.

SECTION III.  CATION PHYSIOLOGY OF CRAYFISH

11.  Table size and physiological condition of the crayfish in relation to calcium ion accumulation.
by Duro Adegboye
Freshwater Crayfish 5:115-125.

12.  Indications of age-dependent metabolism of calcium in the crayfish (Crustacea, Decapoda)..
by Duro Adegboye
Freshwater Crayfish 5:126-136.

13.  Calcium homeostasis in the crayfish.
by Duro Adegboye
Freshwater Crayfish 5:137-153.

14.  The "crayfish condition factor": a tool in crayfish research.
by Duro Adegboye
Freshwater Crayfish 5:154-172.

15.  The relationship between medium calcium and hemolymph calcium concentrations of the crayfish during the mid-intermoult stage.
by Duro Adegboye
Freshwater Crayfish 5:173-180.

SECTION IV.  ECOLOGY OF CRAYFISH

16.  Studies of the life history and ecology of Orconectes palmeri palmeri (Faxon).
by James F. Payne and James O. Price
Freshwater Crayfish 5:183-191.

17.  The bioenergetics of Orconectes virilis in two pothole lakes.
by Patricia D. Jones and Walter T. Momot
Freshwater Crayfish 5:192-209.

18.  Pacifastacus leniusculus (Dana) production in the Sacramento River.
by Steven Shimizu and Charles Goldman
Freshwater Crayfish 5:210-228.

19.  Population of the crayfish Austropotamobius pallipes pallipes Lereb. in a brook of Corsica France.
by Jacques C. Arrignon and Bernard Roch
Freshwater Crayfish 5:229-238.

20.  Trappability, locomotion, and the diel pattern of activity of the crayfish Astacus astacus L. and Pacifastacus leniusculus Dana..
by Sture A. Abrahamsson
Freshwater Crayfish 5:239-253.

21.  Substrate selection behavior of the crayfish Pacifastacus leniusculus.
by B.J. Klosterman and Charles Goldman
Freshwater Crayfish 5:254-267.

22.  Climate and stream as limiting factors in the distribution of Astacus astacus L. (Abstract)..
by M. Frst and B. Eriksson
Freshwater Crayfish 5:268.

23.  Predation by Anax junius (Odonata: Aeschnidae) naiads on young crayfish (Abstract).
by John F. Witzig, James W. Avault Jr and Jay V. Huner
Freshwater Crayfish 5:269.

24.  A portable hydraulic diver-operated dredge-sieve for sampling juvenile crayfish.  Description and experiences.
by Tommy Odelstrom
Freshwater Crayfish 5:270-276.

SECTION V.  PATHOLOGY AND TOXICOLOGY OF CRAYFISH

25.  Frequency of visible symptoms of the crayfish plague fungus (Aphamomyces astaci) on the American crayfish (Pacifastacus leniusculus) in natural populations in Finland.
by Voljo Nylund and Kai Westman
Freshwater Crayfish 5:277-283.

26.  Susceptibility of Orconectes limosus Raff. to the crayfish plague, Aphanomyces astaci Schikora.
by Alain Vey, Kenneth Sderhll and Ragnar Ajaxon
Freshwater Crayfish 5:284-291

27.  Pacifastacus leniusculus (Dana) and its resistance to the parasitic fungus Aphanomyces astaci Schikora.
by Mikael Persson and Kenneth Sderhll
Freshwater Crayfish 5:292-298.

28.  The occurrence of crayfish diseases and their significance in Ireland.
by C. O'Keeffe and Julian D. Reynolds
Freshwater Crayfish 5:299-306.

29.  Ultrastructure and taxonomic position of the crayfish parasite Psorospermium haeckeli Hilgendorf..
by Viljo Nylund, Kai Westman and Kari Lounatmaa
Freshwater Crayfish 5:307-314.

30.  Effects of rice pesticides on Procambarus clarkii in a rice/crayfish pond model.
by S.B. Ekanem, James W. Avault Jr., Jerry B. Graves and H. Morris
Freshwater Crayfish 5:315-323.

31.  Toxicity of selected rice herbicides to red swamp crawfish Procambarus clarkii (Girard) (Abstract).
by C.G. Lutz and R.P. Romaire
Freshwater Crayfish 5:324.

32.  Effects of formulated diets on two species of crayfish: Austropotamobius pallipes (L.) and Pacifastacus leniusculus (Dana) under laboratory conditions.
by R. Fernandez, C. Lpez-Baissn, L. Ramos and L. Cuellar
Freshwater Crayfish 5:325-328.

SECTION VI.  PRODUCTION PROBLEMS OF CRAYFISH

33.  Crawfish (Procambarus clarkii) growth and dispersal in a small south Louisiana pond planted with rice (Oryza sativa).
by John F. Witzig, James W. Avault Jr. and Jay V. Huner
Freshwater Crayfish 5:331-343.

34.  Effects of flooding dates and type of disposal of rice straw on the initial survival and growth of caged juvenile crayfish, Procambarus clarkii, in ponds.
by Yew-Hu Chien and James W. Avault Jr.
Freshwater Crayfish 5:344-350.

35.  A comparison of delta duck potato (Sagittaria graminea platyphylla) and rice (Oryza sativa) as cultured red swamp crayfish (Procambarus clarkii) forage.
by W.B. Johnson Jr., L.L. Glasgow and James W. Avault Jr.
Freshwater Crayfish 5:351-361.

36.  Feeds and forages for red swamp crayfish, Procambarus clarkii: 15 years research at Louisiana State University reviewed.
by James W. Avault Jr., Robert P. Romaire and Michael R. Miltner
Freshwater Crayfish 5:362-369.

37.  An appropriate food delivery system for low-levee pond culture of Procambarus clarkii, the red swamp crayfish.
by Michale R. Miltner and James W. Avault Jr.
Freshwater Crayfish 5:370-378.

38.  Crawfish, Procambarus spp., production from summer flooded experimental ponds used to culture prawns, Macrobrachium rosenbergii, and/or channel catfish, Ictalurus punctatus, in South Louisiana..
by Jay V. Huner, Michael Miltner and James W. Avault Jr.
Freshwater Crayfish 5:379-390.

39.  An evaluation of selected crawfish traps and trapping techniques in Louisiana (Abstract).
by V. Pfister and R. P. Romaire
Freshwater Crayfish 5:391

40.  A comparative study on the production of crayfish (Astacus astacus l.) juveniles in natural food ponds and by feeding in plastic basins.
by M. Pursianinen, T. Jrvenp and K. Westman
Freshwater Crayfish 5:392-402.

41.  The commercial fishery for Pacifastacus leniusculus (dana) in the Sacramento-San Joaquin delta.
by Darlene McGriff
Freshwater Crayfish 5:403-417.

42.  The crayfish Procambarus clarkii from California rice fields: Ecology, problems and potential for harvest.
by Ted R. Sommer and Charles Goldman
Freshwater Crayfish 5:418-428.

43.  Commercialization of Vermont crayfish species (Orconectes immunis and Orconectes virilis): putting theory into practice..
by James R. Nolfi
Freshwater Crayfish 5:429-442.

SECTION VII.  SOVIET CONTRIBUTIONS

44.  Microflora of the digestive tract of the crayfish Astacus astacus L.
by L. Mickeniene
Freshwater Crayfish 5:445-450.

45.  Chemical regulation in crayfish behaviour during postembryonic development.
by A. Burba
Freshwater Crayfish 5:451-458.

46.  Circadian variations of proteolytic activity in the digestive system of the crayfish Astacus astacus L.
by G. Mackeviciene
Freshwater Crayfish 5:459-463.

47.  On the systematics of palaearctic crayfishes (Crustacea, Astacidae).
by S.Y. Brodski
Freshwater Crayfish 5:464-470.

48.  Ethogenesis of crayfish.
by J.M. Cukerzis
Freshwater Crayfish 5:471-475.

49.  Selected literature on the Lithuanian crayfish.
by J.J. Cukerzis
Freshwater Crayfish 5:478-489.

50.  Biochemical characteristics of the Dniester long-clawed crayfish of the Astacidae family.
by A.W. Suprunovich, R.P. Kadniuk, T.A. Petkevich, I.A. Stepaniuk, W.I. Lisovskaya and L.V. Antsupova
Freshwater Crayfish 5:490-518.

SECTION VIII.  DESCRIPTIVE PAPERS

51.  Research methodology at the University of Southwestern Louisiana Crawfish Research Center.
by Donald Gooch
Freshwater Crayfish 5:521-527.

52.  Crayfish species plan for the United States: Aquaculture.
by James W. Avault Jr.
Freshwater Crayfish 5:528-533.

53.  Crayfish research and industry activities in Australia, New Guinea and New Zealand.
by N.M. Morrissy
Freshwater Crayfish 5:534-544.

54.  Epizootiology of the crayfish plague (Aphanomycosis) in Spain.
by L. Cuellar and M. Coll
Freshwater Crayfish 5:545-548.

55.  Some observations on crawfish farming in Spain.
by Andres Salvador Habsburgo Lorena
Freshwater Crayfish 5:549-551.

56.  Socioeconomic aspects of the crawfish industry in Spain.
by Andres Salvador Habsburgo Lorena
Freshwater Crayfish 5:552-554.

57.  An attempt to raise juvenile crayfish Pacifastacus leniusculus Dana.
by Josef Kossakowski and G. Kossakowski
Freshwater Crayfish 5:555-556.

58.  The introduction of the signal crayfish into the United Kingdom and its development as a farm crop.
by Kenneth J. Richards
Freshwater Crayfish 5:557-563.

59.  On the non-existence of an indigenous species of crayfish on the continent of Africa.
by Duro Adegboye
Freshwater Crayfish 5:564-571.