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Identification and Estimation of Size from the Beaks of 18 Species of Cephalopods from the Pacific Ocean

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Identification and Estimation of Size from the Beaks of 18 Species of Cephalopods from the Pacific Ocean Identification and estimation of size from the beaks of 18 species of cephalopods from the Pacific Ocean Item Type monograph Authors Wolff, Gary A. Publisher NOAA/National Marine Fisheries Service Download date 11/10/2021 15:44:37 Link to Item http://hdl.handle.net/1834/20593 17 NOAA Technical Report NM FS 17 Identification and Estimation of Size From the Beaks of 18 Species of Cephalopods From the Pacific Ocean Gary A. Wolff November 1984 u.s. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service NOAA TECHNICAL REPORTS NMFS The major responsibilities of the National Marine Fisberies Service (NMFS) are to monitor and assess the abundance and geographic distribution of fishery resources, to understand and predict fluctuations in the quantity and distribution of these resources, and to establish levels for optimum use of the resources. NMFS is also charged with tbe development and implemen­ tation of policies for managing national fishing grounds, development and enforcement of domestic fisheries regulations, surveillance of foreign fishing off United States coastal waters, and the development and enforcement of international fishery agreements and policies. NMFS also assists the fishing industry through marketing service and economic analysis programs, and mortgage insurance and vessel construction subsidies. It collects, analyzes, and publishes statistics on various phases of the industry. The NOAA Technical Report NMFS series was established in 1983 to replace two subcategories of the Technical Reports series: "Special Scientific Report-Fisberies" and "Circular." The series contains the following types of reports: Scientific investigations that document long-term continuing programs of NMFS, intensive scientific reports on studies of restricted scope, papers on applied fishery problems, technical reports of general interest intended to aid conservation and management, reports that review in considerable detail and at a high technical level certain broad areas of research, and technical papers originating in economics studies and from management investigations. Copies of NOAA Technical Report NMFS are available free in limited numbers to governmental agencies, both Federal and State. They are also available in exchange for other scientific and technical publications in the marine sciences. Individual copies may be obtained from: U.S. Department of Commerce, National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. NOAA Technical Report NM FS 17 Identification and Estimation of Size From the Beaks of 18 Species of Cephalopods From the Pacific Ocean Gary A. Wolff November 1984 u.s. DEPARTMENT OF COMMERCE Malcolm Baldrige, Secretary National Oceanic and Atmospheric Administration John V. Byrne, Administrator National Marine Fisheries Service William G. Gordon, Assistant Administrator for Fisheries The National Marine Fisheries Service (NMFS) does not approve, recom­ mend or endorse any propriety product or proprietary material mentioned in this publication. No reference shall be made to NMFS, or to this publica­ tion furnished by NMFS, in any advertising or sales promotion which would indicate or imply that NMFS approves, recommends or endorses any proprietary product or proprietary material mentioned herein, or which has as its purpose an intent to cause directly or indirectly the advertised pro­ duct to be used or purchased because of this NMFS publication. CONTENTS Introduction ..................................... ................ .. .. .. .. .. ....... .. .. .......... Methods ................................................................................................. Results. 2 Key for the upper beak . 2 Key for the lower beak . 6 Body weight and mantle length estimates from the beak. 8 Discussion. 8 Literature cited 10 Figures I. Collection locations of the cephalopods. II 2. Dimensions measured on the upper and lower beaks. 12 3. Descriptive characteristics of upper and lower beaks. 13 4. Pigmentation changes with growth in beaks of Onychoteuthis banksii . 14 5. Pigmentation changes with growth in beaks of Abraliopsis affinis and Abraliopsisfelis . 14 6. Pigmentation changes with growth in beaks of Histioteuthis dofleini . 15 7. Pigmentation changes with growth in beaks of Histioteuthis heteropsis. 15 8. Pigmentation changes with growth in beaks of Pterygioteuthis giardi and Gonatus onyx . 16 9. Pigmentation changes with growth in beaks of Leachia danae and Liocranchia reinhardti . 16 10. Pigmentation changes with growth in beaks of Loligo opalescens . 17 II. Pigmentation changes with growth in beaks of Ornithoteuthis volatilis. 17 12. Pigmentation changes with growth in beaks of Todarodes pacificus . 18 13. Pigmentation changes with growth in beaks of NotolOdarus hawaiiensis ........................................... 18 14. Pigmentation changes with growth in beaks of Hyaloteuthis pelagic a . 19 15. Pigmentation changes with growth in beaks of Dosidicus gigas. 19 16. Pigmentation changes with growth in beaks of SympleclOteuthis oualaniensis . 20 17. Pigmentation changes with growth in beaks of SympleclOteuthis luminosa . 20 18. Pigmentation changes with growth in beaks of Ommastrephes bartramii . 21 19. Upper and lower beaks of Onychoteuthis banksii . 22 20. Upper and lower beaks of A braliopsis affinis . 23 21. Upper and lower beaks of Histioteuthis dofleini . 24 22. Upper and lower beaks of Histioteuthis heteropsis . 25 23. Upper and lower beaks of Gonatus onyx. 26 24. Upper and lower beaks of Leachia danae. 27 25. Upper and lower beaks of A bra liopsisfelis . 28 26. Upper and lower beaks of Loligo opalescens. 29 27. Upper and lower beaks of Liocranchia reinhardti .......................... .. ..... ............... ....... 30 28. Upper and lower beaks of Pterygioteuthis giardi . 31 29. Upper and lower beaks ofOrnithoteuthis volatilis . .. .. .. .. .. .. .. .. 32 30. Upper and lower beaks of Todarodes pacificus. 33 31. Upper and lower beaks of NOlOtodarus hawaiiensis . 34 32. Upper and lower beaks of Hyaloreuthis pelagica ...................................... ....................... 35 33. Upper and lower beaks of Dosidicus gigas. 36 34. Upper and lower beaks of Symplectoreuthis oualaniensis . 37 35. Upper and lower beaks of SympleclOreurhis luminosa .............. ........................................... 38 36. Upper and lower beaks of Ommastrephes bartramii . 39 37. Upper and lower beaks of Thysanoreurhis rhombus. 40 38. Upper and lower beak rostral length vs. body weight of Abraliopsis affinis and Abraliopsisfelis . 41 39. Upper and lower beak rostral length vs. body weight of Pterygioteuthis giardi and Gonatus onyx. 42 40. Upper and lower beak rostral length vs. body weight of Leachia danae and Liocranchia reinhardti . 42 41. Upper and lower beak rostral length vs. body weight of Loligo opalescens and Onychoteuthis banksii. 43 42. Upper and lower beak rostral length vs. body weight of Hisrioteuthis dofleini and Histioteuthis heteropsis .. 43 43. Upper and lower beak rostral length vs. body weight of NOlOlOdarus hawaiiensis and Ommastrephes bartramii . 44 44. Upper and lower beak rostral length vs. body weight of Dosidicus gigas and SympleclOteuthis oualaniensis . 44 45. Upper and lower beak rostral length vs. body weight of Ornithoteuthis volatilis and Symplectoteuthis luminosa . 45 46. Upper and lower beak rostral length vs. body weight of Todarodes pacificus and Hyaloteuthis pelagica . 45 47. Upper and lower beak rostral length vs. mantle length of Abraliopsis affinis and Abraliopsisfelis . 46 48. Upper and lower beak rostral length vs. mantle length of Pterygioteuthis giardi and Gonatus onyx . 46 49. Upper and lower beak rostral length vs. mantle length of Leachia danae and Liocranchia reinhardti . 47 iii 50. Upper and lower beak rostral length vs. mantle length of Loligo opalescens and Onychoteuthis banksii ................... 47 51. Upper and lower beak rostral length vs. mantle length of.
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