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Life History Dynamics of Nudibranch Sibling Species in the Genus Dendronotus in the Gulf of Maine

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Life History Dynamics of Nudibranch Sibling Species in the Genus Dendronotus in the Gulf of Maine University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Winter 2002 Life history dynamics of nudibranch sibling species in the genus Dendronotus in the Gulf of Maine Chad Gordon Sisson University of New Hampshire, Durham Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation Sisson, Chad Gordon, "Life history dynamics of nudibranch sibling species in the genus Dendronotus in the Gulf of Maine" (2002). Doctoral Dissertations. 114. https://scholars.unh.edu/dissertation/114 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. ProQuest Information and Learning 300 North Zeeb Road, Ann Arbor. Ml 48106-1346 USA 800-521-0600 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. I ll i: HISTORY DYNAMICS OF NI DI BRANCH SIBLING SPFCIES IN THE GENT'S DE.XDROXOTl S IN THE GULF OF MAINE. BY CHAD Ci. SISSON B.A. Colby College. 19% M.S. I diversity of New Hampshire. 1998 DISSERTATION Submitted to the I'niversity of New Hampshire in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in /oology December. 2002 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number: 3070985 UMI UMI Microform 3070985 Copyright 2003 by ProQuest Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. ProQuest Information and Learning Company 300 North Zeeb Road P.O. Box 1346 Ann Arbor, Ml 48106-1346 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. I his dissertation has been examined and approved. t o u i ___________________ Dissertation Director. Dr. Larry Ci. Harris. Professor o f/o o lo g y r. Jessica Bolker. Associate Professor of /o o lo e \ - - / Dr. dames llanev. Professor of/oolog, j(' LUL Dr. Marianne l.itvaitis. Associate Professor of /.O oloitN /P r. Jan Pechenik. Professor o f Biology. I nfts y I ’niversitv. Medford. MA Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ACKNOWLEDGEMENTS I thank my advisor. Dr. L am Harris, and my committee members. Dr. J. Bolker. Dr. J. Haney. Dr. M . Litvaitis and Dr. J. Pechenik for all o f their help in this line of research. Thanks to many graduate students in our lab for their support, including P. Bertelsson-I riedman. Dr. S. Chavanich. I.. Dyer. Dr. L. Lovely, k . MacManus-Frick. S. Reidy. and Dr. M. Tyrell. Many undergraduate researchers have assisted with this project either directly or indirectly, including M . Pelaud. M. Ilermann-Tross. I . Maddigan and .1. Yager. D i\e partners were invaluable, especially during the colder months: C. Biehe. J. Thompson. R. Toppin. and J. Wanat. I thank Dr. A. ku /irian for lending me the larval culture apparatus and Dr. M. Lesser for contributing filtered seawater equipment. Other colleagues that supported this research either with their comments or equipment include Dr. A. Stork. Dr. C. Walker. Dr. M . Russell and Dr. P. Greenwood. This research was supported b\ a Grant-in Aid of Research from Sigma Xi. and research grants from the I N il Graduate School and Center for Marine Biologv. Most importantly. I thank my greatest supporter. Dr. k . Bossie. D.O. and our wonderful daughter. Ldin. iii Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. TABLE OF CONTENTS AC KN O \VL E IX i H M E NTS LIST OF TABLES ............................................................................................................................. vi LIST OF FIGURES..........................................................................................................................vii ABSTRACT ....................................................................................................................................... i\ CHAPTER ................................................................................................................................... PAGE: GENERAL INTRODUCTION ...................................................................................................... E DESCRIPTION OF A NEW NUDIBRANCH SPECIES IN TUI- Gl T.F OF MAINE!. DEXDROXOTl S N.SP. WITH A COMPARISON TO THE SIBLING SPECIES D E X D R O X O Tl 'N F R O X n O Sl '.S' AND OTHER NORTH ATLANTIC CONGENERS....6 Abstract ..................................................................................................................................................b Introduction...........................................................................................................................................b Materials and Methods ....................................................................................................................... X Results .................................................................................................................................................. 10 Discussion........................................................................................................................................... IX II. ESTIMATING IIIE DISPERSAL POTENTIAL OF LARVAE FROM SIBLING SPECIES IN THE GENUS DEXDROXOTL'S........................................................................... 27 Introduction........................................................................................................................................ 27 II (SECTION I ). VELIGERS FROM THE NUDIBRANCH DEXDROXOTL ’S FROXDOSL’S SHOV SHELL GROWTH AND AN EXTENDED PELAGIC PERIOD IN LABORATORY CULTURE ....................................................................................................20 iv Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Abstract Introduction......................................................................................................................................... 2d Materials and Methods ..................................................................................................................... 32 Results .................................................................................................................................................. 37 Discussion........................................................................................................................................... 3d ii (Se x t i o n 2). d f f a y f d mftamorphosisof ffcithotrophic f a r y a f FROM Till- M DIBRANX'H DTXDROXOTIS N. SP.......................................................... 56 Abstract ................................................................................................................................................ 56 Introduction......................................................................................................................................... 56 Materials and Methods ..................................................................................................................... .''X Results .................................................................................................................................................. 6 1 Discussion........................................................................................................................................... 63 II (COMBINFD). I S I IMA I INCi THF DISPFRSAF POTFNTIAF OF I.ARVAI- FROM SIBLING SPFCIFS IN Till: GFNT'S DTXDROXOTIS ........................................................ 72 Conclusion. III. TIFF: HISTORY DYNAMICS AND BIOGFOGRAPHY OF A Nl'DIBRANCH SIBLING SPFCIFS COMPFFX WITH CONTRASTING DFVFFOPMFN I AI. modf:s: a hypothfsis fo r hif: f:voit iion of fa rv a f typfs ................... 73 Abstract ................................................................................................................................................ 73 Introduction......................................................................................................................................... 74 Materials and
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