U.S. Department 

 of Commerce 



Seattle, Washington 



Volume 102 

 Number 4 

 October 2004 



Fishery 

 Bulletin 



Contents 



Articles 



563-580 Calambokidis, John, Gretchen H. Steiger, David K. Ellifrit, 



Barry L. Troutman, and C. Edward Bowlby 

 Distribution and abundance of humpback whales 

 (Megaptera novaeangliae) and other marine mammals 

 off the northern Washington coast 



581-592 Danilewicz, Daniel, Juan A. Claver, Alejo L. Perez Carrera, 



Eduardo R. Secchi, and Nelson F. Fontoura 

 Reproductive biology of male franciscanas 

 (Pontoporia bloinvillei) (Mammalia: Cetacea) from 

 Rio Grande do Sul, southern Brazil 



593-603 Fischer, Andrew J., M. Scott Baker Jr., and Charles A. Wilson 



Red snapper (Lut/anus campechanus) demographic structure in 

 the northern Gulf of Mexico based on spatial patterns 

 in growth rates and morphometries 



The conclusions and opinions expressed 

 in Fishery Bulletin are solely those of the 

 authors and do not represent the official 

 position of the National Marine Fisher- 

 ies Service 'NOAAi or any other agency 

 or institution. 



The National Marine Fisheries Service 

 NMFS i does not approve, recommend, or 

 endorse any proprietary product or pro- 

 prietary material mentioned in this pub- 

 lication- No reference shall be made to 

 NMFS, or to this publication furnished by 

 NMFS. in any advertising or sales pro- 

 motion which would indicate or imply 

 that NMFS approves, recommends, or 

 endorses any proprietary product or pro- 

 prietary material mentioned herein, or 

 which has as its purpose an intent to 

 cause directly or indirectly the advertised 

 product to be used or purchased because 

 of this NMFS publication. 



604-616 FitzGerald, Jennifer L, Simon R. Thorrold, Kevin M. Bailey, 



Annette L. Brown, and Kenneth P. Severin 

 Elemental signatures in otoliths of larval walleye pollock 

 (Theragra chalcogramma) from the northeast Pacific Ocean 



617-633 Gaughan, Daniel J., Timothy I. Leary, Ronald W. Mitchel 



and Ian W. Wright 



A sudden collapse in distribution of Pacific sardine 

 (Sardinops sagax) off southwestern Australia enables 

 an obiective re-assessment of biomass estimates 



634-647 Griffiths, Shane P., Ron J. West, Andy R. Davis, 



and Ken G. Russell 



Fish recolonization in temperate Australian rockpools: 

 a quantitative experimental approach 



