One of the concepts I learned from constructing a yield/recruit model for crustaceans, is that for slow-growing large crustaceans, annual data is not easily compatible where growth by moulting occurs after progressively longer intervals as life progresses.Thesenon-uniform intervals are referred to from here on as 'gnomonic intervals'. Converting the unit time to intermoult intervals seemed more logical, and in the long run, it eventually became clear that gnomonic intervals are biological time units that I used later for life history modeling and formulating natural mortality rates for other organisms.
in inverse chronological order.
Modelling Stock–Recruitment Processes in Crustacea: Some Practical and Theoretical Perspectives
J. F. Caddy. Published on the web 11 April 2011. Canadian Journal of Fisheries and Aquatic Sciences, 1986, 43:2330-2344, 10.1139/f86-285
Proceedings of the Assessment Framework for Northern Shrimp (Pandalus borealis) off Labrador and the northeastern coast of Newfoundland
C S A S (Canadian Science Advisory Secretariat), Proceedings Series 2007/034. May 28-30, 2007, St. John’s, NL Meeting Chairperson: Dr. Noel Cadigan. Editor: Dr. Jerry Ennis.
Using an empirical traffic light procedure for monitoring and forecasting in the Gulf of St Lawrence fishery for the snow crab, Chionoecetes opilio.
J.F. Caddy, E. Wade, T. Surette, M. Hebert and M. Moriyasu. Universidad Marista de Merida, Yucatan 97300, Mexico, Department of Fisheries and Oceans, Gulf Region, Oceans and Science Branch, Gulf Fisheries Centre. Fisheries Research 76 (2005) 123–145. Received 10 January 2005; received in revised form 27 May 2005; accepted 1 June 2005
The state of knowledge of the lobster resource in Miramichi Bay and adjacent waters; some suggetsions for conflict resolution over fishing seasons, and ideas for fisheries research in support of lobster management
J.F. Caddy PhD. August 9 2001.
A personal perspective on future cooperative research on lobsters.
Caddy, J.F. (1989). The International lobster Recruitment Workshop held in St Andrews, N.B. Proc. 39th Annual Gulf and Caribbean Fisheries Institute, p 302-317.
The population biology of Decapods.
Cobb, J.S. and J.F. Caddy. (1989). Pp 327-374 In: J.F. Caddy. Marine Invertebrate Fisheries: their assessment and management. John Wiley and Sons, Inc.
Size-frequency analysis for crustacea: moult increment and frequency models for stock assessment.
Caddy, J. (1987). Kuwait Bull. Mar. Sci. 987(9), pp 43-61.
Proceedings of the Canada - U.S. Workshop on Status of Assessment Science for N. W. Atlantic Lobster (Homarus americanus) Stocks (St. Andrew, N.B., Oct. 24 - 26, 1978).
Anthony, V.C. and J.F. Caddy. (1980). Canadian Technical Report of Fisheries and Aquatic Sciences No. 932. Pp. 186.
Notes on a more generalized yield per recruit analysis for crustaceans, Using size-specific inputs.
Caddy, J. F. (1979). Fish. Mar. Serv. MS Rep. 1525. 21 pp.
Also in Stock Assessment and Ecosystems Issues.
Do crustacean moulting schedules suggest biologically relevant units of elapsed time?
J.F. Caddy, CINVESTAV, Departamento de recursos del Mar, Merida, Mexico and T.H. Huxley School of Environment, Earth Sciences and Engineering, University of London. Key words: crustaceans, moult intervals, biological time units, growth modelling.
Report to Department of Oceans (DFO) Canada, Lobster Conservation Working Group on issues relating to the use of egg-per- recruit models and some considerations relevant to research and management of regional lobster stocks.
J.F. Caddy.
The state of knowledge of the lobster resource in Miramichi Bay and adjacent waters; some suggetsions for conflict resolution over fishing seasons, and ideas for fisheries research in support of lobster management
J.F. Caddy PhD. August 9 2001.Read the article »