Positions

Overview

  • My research primarily focuses on improving the culture of commercially important finfish species by understanding and ultimately controlling physiological processes. Much of my research has focused on understanding reproductive processes, as this is requisite for successful propagation of aquatic species and often limits production. Fishes exhibit an astonishing array of reproductive strategies and each species' unique strategy must be unraveled before successful culture can be realized. Some of the specific topics which are of interest to me include the endocrine control of sex differentiation, factors that influence egg development and quality, effects of social interaction and environmental conditions on sex change (sequential hermaphroditism) and environmental control of reproductive cycles. Study of the life cycles of wild fish is often necessary to understand these processes. My students and I are also studying environmental conditions that minimize stress and optimize growth of cultured fish, such as salinity levels, light intensity, tank densities and temperature. We utilize applied aspects of aquaculture, such as hormonal induction of spawning, as well as modern laboratory techniques to address these questions.

    Some of the species I have worked with in the past include summer flounder, alewives, blueback herring and Atlantic cod. Currently, my colleagues and I are investigating the aquaculture potential of black sea bass, a highly sought species in the upscale restaurant trade. As this fish is a protogynous hermaphrodite, changing from female to male, and is extremely fragile during its larval stage, we have many interesting problems to address before widespread commercial production is realized.

    Some additional research projects in my lab include the culture and conservation of rainbow smelt, strain evaluation of striped bass for growth stress responsiveness and assessing the northeastern stock structure of migratory striped bass.
  • Publications

    Academic Article

    Year Title
    2016 The effects of temperature on ovarian aromatase (cyp19a1a) expression and sex differentiation in summer flounder (Paralichthys dentatus).Fish Physiology and Biochemistry.  42:795-805. 2016
    2016 Effects of dietary genistein administration on growth, survival and sex determination in southern flounder, Paralichthys lethostigmaAquaculture Research.  47:82-90. 2016
    2015 Sex differentiation of summer flounder (Paralichthys dentates L.) raised at practical hatchery temperaturesAquaculture Research.  46:1188-1196. 2015
    2015 Identification and expression of GnRH2 and GnRH3 in the black sea bass (Centropristis striata), a hermaphroditic teleost.Fish Physiology and Biochemistry.  41:383-395. 2015
    2015 Brain aromatase (cyp19a1b) and gonadotropin releasing hormone (gnrh2 and gnrh3) expression during reproductive development and sex change in black sea bass (Centropristis striata).Comparative biochemistry and physiology. Part A, Molecular & integrative physiology.  181:45-53. 2015
    2014 Characterizing ovarian gene expression during oocyte growth in Atlantic cod (Gadus morhua).Comparative Biochemistry and Physiology - Part D: Genomics and Proteomics.  9:1-10. 2014
    2014 Development and validation of a non-lethal method for monitoring steroid hormones in plethodontid salamandersHerpetological Review.  45:220-222. 2014
    2013 Cryopreservation of summer flounder, Paralichthys dentatus L., spermAquaculture Research.  44:1560-1567. 2013
    2013 Identifying the spatial scale of population structure in anadromous rainbow smelt (Osmerus mordax)Fisheries Research.  141:95-106. 2013
    2013 No differences in egg buoyancy and anti-freeze protein production in genetically divergent subpopulations of Gulf of Maine Atlantic Cod (Gadus morhua)Fisheries Research.  141:130-135. 2013
    2012 Swimming Characteristics and Fertilizing Capacity of Meiogynogenetic Summer Flounder, Paralichthys dentatus, SpermatozoaJournal of the World Aquaculture Society.  43:869-877. 2012
    2012 Identification of ovarian gene expression patterns during vitellogenesis in Atlantic cod (Gadus morhua).General and Comparative Endocrinology.  179:296-304. 2012
    2012 Partial Replacement of Fishmeal with Soybean Meal and Soy Protein Concentrate in Diets of Atlantic CodNorth American Journal of Aquaculture.  74:330-337. 2012
    2012 Rainbow Smelt Weaning and the Effects of Temperature and Salinity on Juvenile GrowthNorth American Journal of Aquaculture.  74:235-240. 2012
    2011 Effects of Partial Replacement of Fish Meal Protein by Microalgae on Growth, Feed Intake, and Body Composition of Atlantic CodNorth American Journal of Aquaculture.  73:76-83. 2011
    2010 Partial Replacement of Fish Meal with Soy Protein Concentrate in Diets of Atlantic CodNorth American Journal of Aquaculture.  72:343-353. 2010
    2010 Effects of sedimentation and periphyton communities on embryonic Rainbow Smelt, Osmerus mordaxAquatic Sciences.  72:361-369. 2010
    2010 Effects of sedimentation and periphyton communities on embryonic Rainbow Smelt, Osmerus mordaxAquatic Sciences.  72:361-369. 2010
    2010 Effects of sedimentation and periphyton communities on embryonic rainbow smelt, Osmerus mordaxAquatic Sciences.  72:361-369. 2010
    2010 Surface Disinfection and Removal of Adhesiveness from Rainbow Smelt EggsNorth American Journal of Aquaculture.  72:158-163. 2010
    2010 Fine-scale spatial and temporal genetic structure of Atlantic cod off the Atlantic coast of the USAMarine Ecology - Progress Series.  410:177-U195. 2010
    2010 Understanding climate impacts on recruitment and spatial dynamics of Atlantic cod in the Gulf of Maine: Integration of observations and modelingProgress in Oceanography.  87:251-263. 2010
    2009 Hormonal induction of ovulation and spermiation in Atlantic cod (Gadus morhua)Aquaculture.  296:179-183. 2009
    2009 Comparative fatty acid composition of eggs from wild and captive black sea bass, Centropristis striata L.Aquaculture Research.  40:656-668. 2009
    2009 The effects of temperature on sex differentiation and growth of black sea bass (Centropristis striata L.)Aquaculture Research.  40:729-736. 2009
    2009 Induced meiotic gynogenesis and sex differentiation in summer flounder (Paralichthys dentatus)Aquaculture.  289:175-180. 2009
    2009 Partial Replacement of Fish Meal with Laver Porphyra spp. in Diets for Atlantic CodNorth American Journal of Aquaculture.  71:39-45. 2009
    2008 Factors affecting survival of cobia, Rachycentron canadum, during simulated transportJournal of the World Aquaculture Society.  39:678-683. 2008
    2007 The effects of environmental factors on rainbow smelt Osmerus mordax embryos and larvaeJournal of Fish Biology.  71:539-549. 2007
    2007 A comparison of human chorionic gonadotropin and luteinizing hormone releasing hormone analogue for ovulation induction in black sea bass Centropristis striata (Linnaeus, 1758)Aquaculture Research.  38:918-925. 2007
    2007 Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analysesTransactions of the American Fisheries Society.  136:375-391. 2007
    2006 Effect of acclimation temperature on the acute stress response in juvenile Atlantic cod, Gadus morhua L., and haddock, Melanogrammus aeglefinus L.Aquaculture Research.  37:1685-1693. 2006
    2006 Induced sex change in black sea bassJournal of Fish Biology.  69:1491-1503. 2006
    2006 Whole-body corticosteroid and plasma cortisol concentrations in larval and juvenile Atlantic cod Gadus morhua L. following acute stressAquaculture Research.  37:1282-1289. 2006
    2005 The use of luteinizing hormone releasing hormone analogue for ovulation induction in black sea bass (Centropristis striata)Aquaculture.  250:813-822. 2005
    2005 The use of clove oil, metomidate, tricaine methanesulphonate and 2-phenoxyethanol for inducing anaesthesia and their effect on the cortisol stress response in black sea bass (Centropristis striata L.)Aquaculture Research.  36:1442-1449. 2005
    2005 Development of practical culture methods for rainbow smelt larvaeNorth American Journal of Aquaculture.  67:202-209. 2005
    2005 The effects of feeding frequency on growth of juvenile Atlantic halibut, Hippoglossus hippoglossus L.Aquaculture Research.  36:370-377. 2005
    2004 Production and storage of sperm from the black sea bass Centropristis striata LAquaculture Research.  35:1457-1465. 2004
    2004 The effects of temperature and salinity on early life stages of black sea bass Centropristis striataJournal of the World Aquaculture Society.  35:335-344. 2004
    2004 Cryogenic and refrigerated storage of rainbow smelt Osmerus mordax spermatozoaJournal of the World Aquaculture Society.  35:209-216. 2004
    2004 Cryogenic and refrigerated storage of Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) spermatozoaAquaculture.  234:527-540. 2004
    2004 The effects of photothermal manipulation on reproductive development in female haddock Melanogrammus aeglefinus L.Aquaculture Research.  35:465-472. 2004
    2003 Volitional spawning of black sea bass Centropristis striata induced with pelleted luteinizing hormone releasing hormone-analogueJournal of the World Aquaculture Society.  34:319-331. 2003
    2003 The effects of photoperiod manipulation on the reproduction of black sea bass, Centropristis striataAquaculture.  218:651-669. 2003
    1999 Broodstock management and spawning of southern flounder, Paralichthys lethostigmaAquaculture.  176:87-99. 1999
    1997 Chapter 2 ReproductionDevelopments in Aquaculture and Fisheries Science.  30:11-73. 1997
    1997 Production of southern flounder Paralichthys lethostigma juveniles in an outdoor nursery pondJournal of the World Aquaculture Society.  28:211-214. 1997
    1997 Hormone induced spawning of summer flounder Paralichthys dentatusJournal of the World Aquaculture Society.  28:79-86. 1997
    1996 Characterization of a vitellogenin receptor in white perch (Morone americana).Biology of Reproduction.  55:646-656. 1996
    1996 Effects of stocking density, salinity, and light intensity on growth and survival of Southern flounder Paralichthys lethostigma larvaeJournal of the World Aquaculture Society.  27:153-159. 1996
    1996 Induced ovulation of Southern flounder Paralichthys lethostigma using gonadotropin releasing hormone analogue implantsJournal of the World Aquaculture Society.  27:143-152. 1996
    1995 Involvement of gonadal steroids in final oocyte maturation of white perch (Morone americana) and white bass (M. chrysops): in vivo and in vitro studies.Fish Physiology and Biochemistry.  14:489-500. 1995
    1995 AGE-AT-MATURITY ESTIMATES FOR ATLANTIC COAST FEMALE STRIPED BASSTransactions of the American Fisheries Society.  124:207-215. 1995
    1995 The annual reproductive cycle of the white bass Morone chrysopsJournal of the World Aquaculture Society.  26:252-260. 1995
    1991 Changes in gonadal hormones during oocyte development in the striped bass,Morone saxatilis.Fish Physiology and Biochemistry.  9:51-62. 1991

    Principal Investigator On

  • Monitoring of the Rainbow Smelt Resource and Winter Ice Fishery  awarded by NH Department of Fish & Game 2017 - 2019
  • Striped Bass Selection for Marine Culture  awarded by University of Maryland 2013 - 2016
  • Understanding the Effects of Fishing on the Size, Age, and Sex Distribution of Black Sea Bass (Centropristis Striata) during the Spawning Season  awarded by National Fisheries Institute 2011 - 2013
  • Intensive Commercial Rainbow Smelt Culture SBIR  awarded by Harmon Brook Farm 2008 - 2011
  • The Use of Reproductive Technology to Improve Flounder Growth  awarded by Great Bay Aquaculture LLC 2008 - 2011
  • Identification of Soybean Nutritional Barriers in Cod Aquaculture  awarded by United Soybean Board 2010
  • Population Genetics of Rainbow Smelt  awarded by Maine Department of Marine Resources 2009 - 2010
  • Commercialization of Black Sea Bass  awarded by University of North Carolina 2006 - 2010
  • A Multi-state Collaborative to Develop and Implement a Conservation Program for Three Anadromous Finfish Species of Concern in the Gult of Maine  awarded by NH Department of Fish & Game 2007 - 2010
  • Identification of Soy Bean Nutritional Barriers in Atlantic Cod  awarded by SmithBucklin Corp 2009
  • Identification of Soybean Nutritional Barriers in Cod Aquaculture  awarded by SmithBucklin Corp 2008 - 2009
  • Influence of Abiotic Factors on Reproductive Success of Rainbow Smelt in the Great Bay Estuary  awarded by NH Department of Environmental Services 2006 - 2007
  • The Use of Reproductive Technology to Improve Flounder Growth  awarded by Great Bay Aquaculture LLC 2006 - 2007
  • Culture Methods for Commercial Production of Smelt  awarded by University of Massachusetts at Dartmouth 2003 - 2005
  • Development Disease Free Broodstock & Juvenile Cage Culture  awarded by Great Bay Aquaculture LLC 2003 - 2004
  • Development of Reliable Spawning Nursery & Juvenile Product  awarded by South Carolina Sea Grant Consortium 2002 - 2003
  • Passage Impediments & Envron Conditions Out-Migrating Shad  awarded by NH Department of Fish & Game 2002 - 2003
  • Development of Reliable Spawning Nursery & Juvenile Product  awarded by South Carolina Sea Grant Consortium 2001 - 2003
  • Teaching Activities

  • Doctoral Research Taught course 2019
  • Physiology of Fish Taught course 2019
  • Principles of Aquaculture Taught course 2019
  • Principles of Aquaculture Taught course 2019
  • Doctoral Research Taught course 2018
  • Physiology of Reproduction Taught course 2018
  • Physiology of Reproduction Taught course 2018
  • Doctoral Research Taught course 2018
  • Principles of Aquaculture Taught course 2018
  • Principles of Aquaculture Taught course 2018
  • Physiology of Reproduction Taught course 2017
  • Physiology of Fish Taught course 2017
  • Principles of Aquaculture Taught course 2017
  • Physiology of Reproduction Taught course 2016
  • Physiology of Reproduction Taught course 2016
  • Principles of Aquaculture Taught course 2015
  • Principles of Aquaculture Lab Taught course 2015
  • Physiology of Reproduction Taught course 2014
  • Physiology of Reproduction Taught course 2014
  • Doctoral Research Taught course 2014
  • Principles of Aquaculture Taught course 2014
  • Principles of Aquaculture Lab Taught course 2014
  • Education And Training

  • B.S. Agriculture, Michigan State University
  • B.S. Natural Resources/Conservation, Michigan State University
  • M.S. Genetics, University of New Hampshire
  • Ph.D. Zoology/Animal Biology, University of Rhode Island
  • Full Name

  • David Berlinsky