Size Structure and Reproductive Status of Exploited Reef-Fish Populations at Kamiali Wildlife Management Area, Papua New Guinea Ken Longenecker, Ross Langston, Holly Bolick, and Utula Kondio Honolulu, Hawaii November 2012 COVER Eight-year-old John Giamsa (center), helps Ross Langston (left), prepare histological sections of fish gonads for rapid reproductive analysis. Size Structure and Reproductive Status of Exploited Reef-Fish Populations at Kamiali Wildlife Management Area, Papua New Guinea Ken Longenecker1, Ross Langston1, Holly Bolick1, and Utula Kondio2 (1) Pacific Biological Survey Bishop Museum Honolulu, Hawaii 96817, USA (2) Kamiali Wildlife Management Area Lababia, Morobe Province, PNG Bishop Museum Technical Report 59 Honolulu, Hawaii November 2012 Bishop Museum Press 1525 Bernice Street Honolulu, Hawai‘i Copyright © 2012 Bishop Museum All Rights Reserved Printed in the United States of America ISSN 1085-455X Contribution No. 2012-016 to the Pacific Biological Survey Contents List of Tables .................................................................................................................................. 6 List of Figures................................................................................................................................. 7 EXECUTIVE SUMMARY .......................................................................................................... 10 INTRODUCTION ........................................................................................................................ 12 Kala Words and a Pronunciation Guide.................................................................................... 12 Background............................................................................................................................... 12 Fishery Surveys......................................................................................................................... 13 Reproductive Analysis.............................................................................................................. 13 Size-at-maturity..................................................................................................................... 13 Batch Fecundity and Sex-ratios ............................................................................................ 14 Catch Characteristics ................................................................................................................ 15 Purpose...................................................................................................................................... 16 METHODS ................................................................................................................................... 16 Study Area ................................................................................................................................ 16 Rapid Reproductive Analysis ................................................................................................... 17 Catch Characteristics ................................................................................................................ 18 Fishery Surveys......................................................................................................................... 18 Time Series ............................................................................................................................... 20 RESULTS ..................................................................................................................................... 21 Reproductive Analysis.............................................................................................................. 21 Length-Weight Relationships ................................................................................................... 22 Fishery Surveys......................................................................................................................... 22 Species Accounts ...................................................................................................................... 32 Acanthuridae......................................................................................................................... 32 Ctenochaetus tominiensis.................................................................................................. 32 Naso hexacanthus (biaŋgawe suwi).................................................................................. 32 Naso lopezi (biaŋgawe talõ) ............................................................................................. 33 Naso vlamingii (biaŋgawe tumi)....................................................................................... 34 Balistidae............................................................................................................................... 34 Canthidermis maculata (labaikã suwi)............................................................................. 34 Caesionidae........................................................................................................................... 34 Caesio cuning (luduŋ ŋai or mai) ..................................................................................... 34 Carangidae ............................................................................................................................ 35 Carangoides bajad (imaŋalẽ babaura)............................................................................. 35 Carangoides plagiotaenia (imaŋalẽ tombo gabo) ............................................................ 36 Caranx melampygus (imaŋalẽ talã).................................................................................. 37 Caranx papuensis (imaŋalẽ labrã kulĩ) ............................................................................ 38 Carcharhinidae ...................................................................................................................... 39 Carcharhinus amblyrhynchos........................................................................................... 39 Triaenodon obesus............................................................................................................ 39 Ephippidae ............................................................................................................................ 39 Platax pinnatus (ibuŋgi tarõ)............................................................................................ 39 Platax teira (ibuŋgi).......................................................................................................... 40 Haemulidae ........................................................................................................................... 40 3 Diagramma pictum (godobo manibarã/tarõ) ................................................................... 40 Plectorhinchus lineatus (iyabua sa).................................................................................. 41 Plectorhinchus vittatus...................................................................................................... 42 Holocentridae........................................................................................................................ 42 Myripristis adusta (imbilĩ tombo gabo) ............................................................................ 42 Myripristis berndti ............................................................................................................ 43 Myripristis kuntee (imbilĩ godõ nambĩ) ............................................................................ 44 Myripristis pralinia........................................................................................................... 45 Myripristis violacea (imbilĩ yakẽ bumbu)......................................................................... 45 Myripristis vittata (imbilĩ yakẽ suwi)................................................................................ 46 Neoniphon sammara (imbilĩ sa)........................................................................................ 47 Sargocentron caudimaculatum (imbilĩ yasai)................................................................... 48 Kyphosidae ........................................................................................................................... 49 Kyphosus cinerascens (italawe)........................................................................................ 49 Kyphosus vaigiensis (italawe talabopia) .......................................................................... 50 Labridae ................................................................................................................................ 50 Choerodon anchorago ...................................................................................................... 50 Cheilinus fasciatus............................................................................................................ 50 Oxycheilinus celebicus...................................................................................................... 51 Oxycheilinus digramma .................................................................................................... 51 Lethrinidae ............................................................................................................................ 51 Lethrinus erythropterus (kada maba) ..............................................................................