Nature of free radicals in freeze-dried fishery 

 products and other lipid-protein systems, by Wil- 

 liam T. Roubal, p. 371-377. 



The relation between exercise and biochemical 

 changes in red and white muscle and liver in the 

 jack mackerel, Trachurus symmetricus, by Aus- 

 tin W. Pritchard, John R. Hunter, and Reuben 

 Lasker, p. 379-386. 



Sebastes variegatus, sp. n. from the northeastern 

 Pacific Ocean (Pisces, Scorpaenidae), by Jay C. 

 Quast, p. 387-398. 



Calico scallop distribution, abundance, and yield off 

 eastern Florida, 1967-68, by Richard B. Roe, 

 Robert Cummins, Jr., and Harvey R. Bullis, Jr., 

 p. 399-409. 



Effects of delayed initial feeding on larvae of the 

 grunion, Leuresthes tenuis (Ayres), by Robert C. 

 May, p. 411-425. 



The relative sampling performance of 6- and 10-foot 

 Isaacs-Kidd midwater trawls, by William A. 

 Friedl, p. 427-432. 



Studies on the use of carbon dioxide dissolved in 

 refrigerated brine for the preservation of whole 

 fish, by Harold J. Barnett, Richard W. Nelson, 

 Patrick J. Hunter, Steven Bauer, and Herman 

 Groninger, p. 433-442. 



DDT residues in seawater and particulate matter in 

 the California Current system, by James L. Cox, 

 p. 443-450. 



Egg loss during incubation from offshore northern 

 lobsters (Decapoda: Homaridae), by Herbert C. 

 Perkins, p. 451-453. 



Additional data on the spawning of the hake, by 



John S. MacGregor, p. 581-585. 

 The low-temperature threshold for pink salmon eggs 



in relation to a proposed hydroelectric in- 

 stallation, by Jack E. Bailey and Dale R. Evans, 



p. 587-593. 

 Primary production in the mid-Subarctic Pacific 



Region, 1966-68, by Jerry D. Larrance, p. 595-613. 

 lago, a new genus of carcharhinid sharks, with a 



redescription of /. omanensis, by Leonard J. V. 



Compagno and Stewart Springer, p. 615-626. 

 Uptake, assimilation, and loss of DDT residues by 



Euphausia pacifica, a euphausiid shrimp, by 



James L. Cox, p. 627-633. 

 A key to the American Pacific shrimps of the genus 



Trachypenaeus (Decapoda, Penaeidae), with the 



description of a new species, by Isabel Perez Far- 



fante, p. 635-646. 

 Artificial ripening of maatjes-cured herring with the 



aid of proteolytic enzyme preparations, by T. M. 



Ritskes, p. 647-654. 

 Laboratory studies on predation by marine copepods 



on fish larvae, by Kurt Lillelund and Reuben 



Lasker, p. 655-667. 

 Trophic interaction between the sea star Pisaster 



giganteus and the gastropod Kelletia kelletii, by 



Richard J, Rosenthal, p. 669-679. 

 Variability of near-surface zooplankton off southern 



California, as shown by towed-pump sampling, by 



Charles P. O'Connell, p. 681-697. 

 Predation on juvenile Pacific salmon by a marine 



isopod Rocinela belliceps pugettensis (Crustacea, 



Isopoda), by Anthony J. Novotny and Conrad V. 



M. Mahnken, p. 699-701. 



Vol. 69, no. 3, 1971. 



Internal defenses of Crustacea: a review, by Carl J. 

 Sindermann, p. 455-489. 



Cleaning symbiosis among California inshore fishes, 

 by Edmund S. Hobson, p. 491-523. 



Gray whales, Eschrichtius robustus, avoid the un- 

 derwater sounds of killer whales, Orcinus orca, by 

 William C. Cummings and Paul 0. Thompson, p. 

 525-530. 



Killer whale, Orcinus orca, sounds repel white 

 whales, Delphinapterus leucas, by James F. Fish 

 and John S. Vania, p. 531-535. 



Developmental abnormalities of the flatfish Achirus 

 lineatus reared in the laboratory, by Edward D. 

 Houde, p. 537-544. 



Early life history of skipjack tuna, Katsuwonus 

 pelamis, in the Pacific Ocean, by Howard 0. 

 Yoshida, p. 545-554. 



Distribution of tuna larvae (Pisces. Scombridae) in 

 the northwestern Gulf of Guinea and off Sierra 

 Leone, by William J. Richards and David C. Sim- 

 mons, p. 555-568. 



Random variability and parameter estimation for 

 the generalized production model, by William W. 

 Fox, Jr., p. 569-580. 



Vol. 69, no. 4, 1971. 



Measurements of fish target strength: a review, by 

 Richard H. Love, p. 703-715. 



Distribution and biology of mysids (Crustacea, 

 Mysidacea) from the Atlantic coast of the United 

 States in the NMFS Woods Hole collection, by 

 Roland L. Wigley and Bruce R. Burns, p. 717-746. 



Escapement levels and productivity of the 

 Nushagak sockeye salmon run from 1908 to 1966, 

 by Ole A. Mathisen, p. 747-763. 



Changes in catch and effort in the Atlantic men- 

 haden purse-seine fishery 1940-68, by William R. 

 Nicholson, p. 765-781. 



Abundance and distribution of young Atlantic men- 

 haden, Brevoortia tyrannus, in the White Oak 

 River estuary. North Carolina, by E. Peter H. Wil- 

 kens and Robert M. Lewis, p. 783-789. 



Isistius brasiliensis, a squaloid shark, the probable 

 cause of crater wounds on fishes and cetaceans, by 

 Everet C. Jones, p. 791-798. 



The relative importance of nannoplankton and net- 

 plankton as primary producers in the California 

 Current system, by Thomas C. Malone, p. 799- 

 820. 



45 



