Anatomical and Histological Studies on the Male Reproductive System of Thenus orient alis

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1 (6) Chinese Journal of Zoology 5 ( ; ) : : ; ; :Q954 :A : (2000) Anatomical and Histological Studies on the Male Reproductive System of Thenus orient alis ZHU Dong2Fa L I Shao2Jing WAN G Gui2Zhong YE Hai2Hui ( Depart ment of Oceanography Xiamen U niversity Xiamen Chi na ; Depart ment of Fisheries Ni ngbo U niversity Ni ngbo Chi na) Abstract : The male reproductive system of Thenus orientalis is composed of paired testes vas deferens and male gonopores. The vas deferens can be separated visually into t he anteri2 o r medial and posterior segment. The testes are composed of multi2convoluted anterior and posterior collecting t ubules bearing numerous spermatogenic acini. Stages of spermatocyte develop ment wit hin t he acini vary t hroughout t he testis ; however spermatogenesis wit hin each acinus is usually synchronous. The main function of collecting tubules is to transport the spermatids to t he vas deferens. Spermiogenesis continues as t he spermatop hores progress through the vas deferens until sperm maturity is reached. The broad cords of cells lie outside the out circular muscular layers of the terminal vas deferens may be the androgenic gland of T. orientalis. Key words : Thenus orientalis ; Male reproductive system ; Anatomia ; Histology [ ] 1 ( Panuli rus sti m pson) 111 [3 ] Burton ( Thenus 112 ; orientalis) [5 ] : 31 ; : ; : :

2 6 Chinese Journal of Zoology (6) Bouin s SC ( : 3) ( 7 m ) SC SC m ; Ehrlich s 015 % 7 9 m ( H. E) ;Olympus BH22 SC ; SC 2 SC ( :5 4) 211 ; SC ( St) ( :3) St 6 9 m 1/ 4 St 5 7 H m 315 m St ; ( : ; 1) ( :1) ( : 5) SC 015 mm ; St 015 mm 1 mm ( :2) 4 6 cm ; ( :3) ( :2) ; ( :2) (AVD) ( AVD ( :6) :3 5) ; ( 6 12 m) AVD ( Sg) ( : ( :7) 3) m ; 7 10 m H. E ; (MVD) AVD ( SC ) ( :4) SC Sg MVD m ; Sg MVD 3/ 4 H. E m SC ( : 8) ( SC ) ( PVD) ( :2 )

3 (6) Chinese Journal of Zoology 7 8 ( :2) PVD PVD MVD [2 ] ( :1 3) 312 PVD Burton ( :1) MVD [5 ] Burton : SC PVD SC ; SC ( PVD St ) : Sg SC ( :1 4) SC H. E ;SC PVD PVD St ;St ( :1) ( Jasus SC St St lalandii) [17 ] ( Nephrops norvegi2 cus) [7 ] ( Enoplometopus occi2 dentalis) [9 ] ( ) Burton ( : 5) Burton SC Sg St SC : 5 ( 6 Sg SC St St ) ( : 313 ( St) St 6) [5 Burton ] [ ] [5 18 ] 314 ( typhlo2 [3 ] sole) [ ] Burton [5 ] ; Fielder Jasus lalandei [ ] ; ; St SC

4 8 Chinese Journal of Zoology (6) [8 ] in the testes of a fresh water crab Potanion koolooense. [ 1 ] (3) : [ 2 ]. ( Eriocheir sinensis) (4) : [ 3 ]. Panuli rus sti m psoni ( Holthuis) (2) : [ 4 ] (2) : [ 5 ] Burton T. E. The spermatid pathway and associated re2 productive structures of the squat lobster Thenus oriental2 is (Lund 1793). Invertebrate Reproduction ment (1) : & Develop2 [ 6 ] Champion H. F. B. The functional anatomy of the male re2 productive system in Penaeus indicus. South Af r. J. ology : [ 7 ] Farmer A. S. D. Reproduction in Nephrops norvegicus Zo2 (Decapoda : Nephropidae ). J. Zool. L ond : [ 8 ] Fielder D. R. The spiny lobster Jasus lalandei ( H. Milne2 Edwards) in South Australia. Reproduction. A ust. J. Mar. Freshw. Res : [ 9 ] Haley S. R. Spermatogenesis and spermatophore produc2 tion in the Hawaiian red lobster Enoplometopus occiden2 talis ( Randall ) ( Crustacea Nephropidae ). Journal of Morphology : [ 10 ] Heydorn A. E. F. Notes on the biology of Panuli rus homarus and on length2weight relationships of Jasus la2 landii. S. A f r. Div. Sea Fish. Invest. Rep :1 22. [ 11 ] Hisch G. W. C. E. Mcknight. The vas deferens of the Spanish lobster Scyllarus chacei. Invert. Reprod. De2 velop : [ 12 ] Joshi P. C. S. S. Khanna. Structure and seasonal changes Proc. Indian. Acad. Sci. A ni m. Sci (5) : [ 13 ] Lesser J. H. R. Identification of early larvae of New Zealand spiny and shovel2nosed lobsters (Decapoda Palin2 uridae and Scyllaridae). Crustaceana (3) : [ 14 ] Martin G. G. C. Herzig G. Narimatsu. Fine structure and histochemistry of the freshly extruded and hardened spermatophore of the spiny lobster Panulirus interrup2 t us. Journal of Morphology : [ 15 ] Matthews D. C. The origin development and nature of the spermatophoric mass of the spiny lobster Panuli rus penicillat us ( Oliver) Pacif ic Science : 359 [16 ] Matthews D. C. The origin and development of the sper2 matophoric mass of a Nephrosid lobster Enoplometopus occi dentalis (Randall) Pacif ic Science : 115 [17 ] Silberbauer B. I. The biology of the South African rock lobster Jasus lalandii ( H. Milne2Edwards ) 2. The re2 productive organs mating and fertilization. S. Af r. Div. Sea Fish. Invest. Rep :1 46. [18 ] Subramoniam T. Chemical composition of spermatophores in decapod Crustacean. In : Bauer R. T. J. W. Martin ed. Crustacean Sexual Biology. N. Y. : Columbia Univ. Press ( 80 ) 6 ( 82 ) : : 19 : : : (010) : (010) ioz. ac. cn : : :

5 : ZHU Dong2Fa et al. : Anatomical and Histological Studies on the Male Reproductive System of Thenus orientalis Plate 11 :1 cm ; 21 ( ) 165 ; 31 SC St 330 ; 41 Sg SC 330 ; 51 St 330 ; 61 AVD 30 ; 71AVD 8215 ; 81MVD 33 ( )

6 : ZHU Dong2Fa et al. : Anatomical and Histological Studies on the Male Reproductive System of Thenus orientalis Plate 11PVD 33 ; 21PVD 8215 ; 31 PVD 8215 ; 41PVD 33 ; 51AVD 825 ; 61PVD 825 AcC : ;AG: ;Al : ;As : ;AVD : ;BM ;CM : ;CT : ;D : ; E : ; FM : ; G: ;LM ;LMF : ;ML : ;MVD : ; PSt ; PVD : ;RA : ;S : ;SC : ;SC : ;Sf ;Sg : ;SM : ;Sp : ;St : ;SW : ; T : ;VD :

N.H. Sea Grant Research Project Post Completion Report For time period 2/1/15 1/31/16

Today s date: 3/22/16 Project number: R/SSS-3 N.H. Sea Grant Research Project Post Completion Report For time period 2/1/15 1/31/16 Project title: Recruitment and retention of lobsters in a New England