Fishery Bulletin 



CONTENTS 



Vol.79, No. 1 January 1981 



HOBSON, EDMUND S., WILLIAM N. McFARLAND, and JAMES R. CHESS. 

 Crepuscular and nocturnal activities of Californian nearshore fishes, with con- 

 sideration of their scotopic visual pigments and the photic environment 1 



GOODING, REGINALD M., WILLIAM H. NEILL, and ANDREW E. DIZON. Res- 

 piration rates and low-oxygen tolerance limits in skipjack tuna, Katsuwonus 

 pelamis 31 



BEARDSLEY, GRANT L., and RAMON J. CONSER. An analysis of catch and 

 effort data from the U.S. recreational fishery for billfishes (Istiophoridae) in the 

 western North Atlantic Ocean and Gulf of Mexico, 1971-78 49 



FERNHOLM, BO, and CARL L. HUBBS. Western Atlantic hagfishes of the genus 

 Eptatretus (Myxinidae) with description of two new species 69 



BLACKBURN, MAURICE, and D. L. SERVENTY. Observations on distribution 

 and life history of skipjack tuna, Katsuwonus pelamis, in Australian waters 85 



KAPPENMAN, RUSSELL F. A method for growth curve comparisons 95 



RICHARDSON, SALLY L. Current knowledge of larvae of sculpins (Pisces: 

 Cottidae and allies) in northeast Pacific genera with notes on intergeneric 

 relationships 103 



TOWNSEND, DAVID W, and JOSEPH J. GRAHAM. Growth and age structure 

 of larval Atlantic herring, Clupea harengus harengus, i-n the Sheepscot River 

 estuary, Maine, as determined by daily growth increments in otoliths 123 



KOSLOW, J. ANTHONY. Feeding selectivity of schools of northern anchovy, 

 Engraulis mordax, in the Southern California Bight 131 



WEBB, P. W, and R. T. COROLLA. Burst swimming performance of northern 

 anchovy, Engraulis mordax, larvae 143 



UCHIYAMA, JAMES H., and PAUL STRUHSAKER. Age and growth of skipjack 

 tuna, Katsuwonus pelamis, and yellowfin tuna, Thunnus albacares, as indicated 

 by daily growth increments of sagittae 151 



RICHARDSON, SALLY L. Pelagic eggs and larve of the deepsea sole, Emhas- 

 sichthys bathybius (Pisces: Pleuronectidae), with comments on generic affinities . 163 



Notes 



WEIHS, DANIEL. Effects of swimming path curvature on the energetics of fish 

 motion 171 



(Continued on next page) 



Seattle, Washington 

 1981 



For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, 

 DC 20402 — Subscription price per year: $14.00 domestic and $17.50 foreign. Cost per single 

 issue; $4.00 domestic and $5.00 foreign. 



