Fishery Science

FW8448, Fall Semester, 2007

Assignments

Sept. 6 -- First 2 chapters of Malcolm Haddon's "Modelling and Quantitative Methods in Fisheries"  This is introductory and background material for later work in modeling and statistics

For discussion Sept. 13 and 19 -- Peter Larkin's encapsulation of "fishery management"
1) Larkin, P. A. 1977. An epitaph for the concept of maximum sustained yield. Trans. Amer. Fish. Soc. 106(1): 1-11.
And, the following two papers distributed in printed form in class:
2) Larkin, P. A. 1978. Fisheries management--an essay for ecologists. Ann. Rev. Ecol. Syst. 9: 57-73
3) Larkin, P. A. 1978. Where next in fish & wildlife management? SFI Bulletin. Sport Fishing Institute. Washington, D. C., March, No. 292.

Sept. 20 --Status of World Fisheries
1) PEW Ocean Commissions report--Effects of Fishing on Aquatic Ecosystems.
(web site http://www.pewtrusts.org/our_work.aspx?category=130) -- Make note of this URL as we will revisit it when we get to discussions of fishery policy.

2) Ryder, R. A. 1965. A method for estimating the potential fish production of North-temperate lakes. (Course web site PDF)

September 26 -- Reproduce Ryder's analysis of North American temperate lakes -- Group project, Scott and Candice to report, Rob and Mario to write-up the analysis.
September 27 -- Conclude discussion of MEI -- Ryder, R. A. 1982.

For discussion October 3 and 4 -- Surplus production models:  Pauly, pp. 138-144; Haddon (review Chapter 2), Chapter 10 pp. 279-300; Hilborn and Walters pp. 9-11 (read this last).

 Exercises:  For October 3 & 4 -- Re-create Pauly's analysis for Peruvian anchoveta (P. 141) in R, with plots and narrative. Re-create the Excel analysis by Haddon, Example 10.2, p. 287.

October 10 & 11 -- Introduction to VPA, cohort analysis. Read Haddon, Chapter 11 (Age-structured Models, pp. 329-372); Pauly pp. 100-105.

Exercises:  Download FAO manual on stock assessment:  http://www.fao.org/docrep/003/X9026E/x9026e0c.htm#b1-10.1%20INTRODUCTION   We will choose a spreadsheet problem for age-structured analysis, and an analysis based on ADAPT.

October 17 & 18 -- Work up Malcolm Haddon's spreadsheet examples 11.1-11.3, pp. 336-338.

October 24 -- Continue with spreadsheet examples 11.4-11.6, pp. 345-351.  We are not likely to complete this until the following week, Oct. 31 & Nov. 1.

October 25 -- This meeting date has moved to 4pm in 490 Hodson Hall. We will have a guest speaker, Dr. Dean Swanson, NOAA. In anticipation of his visit, please read:

CREATING AND IMPLEMENTING INTERNATIONAL FISHERIES CONSERVATION AGREEMENTS

By Dean Swanson, Chief, International Fisheries Division,
National Marine Fisheries Service

October 31 -- Conclude the unit on cohort analysis by reading Hilborn and Walters' critique of VPA, Section 10.6, pp. 363-368. Also read Hilborn and Walters' encapsulation of Statistical Catch-at-Age Methods, Chapter 11, pp. 369-390. While reading this chapter, and, in writing your summary of it, please take special note of where the authors think the SCAG are better than the cohort analyses we have been examining over the last couple of weeks.

November 1 -- Finish comments on SCAG methods, and, introduction to Deriso model (Delay-Difference Models) for biomass modelling. Read Hilborn and Walters' Chapter 9, pp. 330-348. Either today, or Nov. 7, probably the latter, I will present Helen Takade's analysis of the Red Lakes fishery using a variety of different age-structured models.

November 7 & 8 -- Begin unit on individual body growth, review of size-at-age models. Haddon, pp. 197-212, secs. 8.3.1 &8.3.2 (pp. 213-215); read for general content, do not summarize in a written report.  For Nov. 8 and Nov. 14, read Ogle and Spangler's Chapter 11, Individual Growth, p. 269-294

November 14 & 15 -- Growth increment analysis. Read section 11.3, pp. 295-306.

November 21 -- Don Pereira, MN DNR, to speak on implementing stock-recruitment models in freshwater fisheries. Read Ostazeski & Spangler, 2001, and Weisberg, 1993 (distributed in class), and Ogle, et al., 1994 (distributed in class).

November 28 -- Laurie Richmond on growth increment analysis and temporal signatures. Here's a Power Point presentation on temporal signatures put together by Derek Ogle and myself.

November 29 -- Review videotape "A Fish Story" recounting the New England fishery management woes in conjunction with a federal court order to reduce the fishery by 50%.  Readings for Dec. 5 meeting distributed as follows:  Hardin-Laurie, Crowe-Scott, Moncrief-Rob, Neilsen-Candice, White-Mario.

December 5 --  Discuss the origins of the common property management crisis as they relate to fisheries management and science. For tomorrow, I will present an introduction to LaTeX, a type-setting, document processing system for scientific writing.

December 6 --  Assignments for Dec. 12, last day of class, read the PEW Ocean Commission reports on Socioeconomic Perspectives on Marine Fisheries, Managing Marine Fisheries, and their summary review of the state of the marine fisheries. For the first two readings, prepare half-page comments on the article. For the summary review document, write an essay with your own thoughts covering at least chapters 2, 3, 8, 10, and 11. Make your essay 3-4 pages in length, send me a digital copy, and be prepared to discuss it with the class when we meet on Dec. 12.