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J. Specker · SciRah

Researcher profile · Semantic Scholar

J. Specker

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J. Specker — researcher profile on SciRah

h-index: 37
Works: 96
Citations: 3,980

Most-cited papers

The Hypothalamic-Pituitary-Thyroid (HPT) Axis in Fish and Its Role in Fish Development and Reproduction
M. L. Blanton, J. Specker
2007Critical Reviews in Toxicology367 citations Open access
Semantic Scholar
Adaptations of wild populations of the estuarine fish Fundulus heteroclitus to persistent environmental contaminants
D. Nacci, L. Coiro, D. Champlin, S. Jayaraman +5 more
1999219 citations Open access
Semantic Scholar
Stress responses to transportation and fitness for marine survival in coho salmon oncorhynchus kisutch smolts
J. Specker, C. Schreck
1980155 citations
Semantic Scholar
Changes in plasma corticosteroids during smoltification of coho salmon, Oncorhynchus kisutch.
J. Specker, C. Schreck
1982General and Comparative Endocrinology128 citations
Semantic Scholar
Metamorphosis in the summer flounder (Paralichthys dentatus): stage-specific developmental response to altered thyroid status.
Alexander M. Schreiber, J. Specker
1998General and Comparative Endocrinology126 citations Open access
Semantic Scholar
Isolation and partial characterization of a pair of prolactins released in vitro by the pituitary of a cichlid fish, Oreochromis mossambicus.
J. Specker, David S. King, R. Nishioka, K. Shirahata +2 more
1985Proceedings of the National Academy of Sciences of the United States of America118 citations Open access
Semantic Scholar
Complete amino acid sequences of a pair of fish (tilapia) prolactins, tPRL177 and tPRL188.
Kazuo Yamaguchi, J. Specker, David S. King, Y. Yokoo +3 more
1988Journal of Biological Chemistry115 citations Open access
Semantic Scholar
Thyroxine content of eggs and larvae of coho salmon, Oncorhynchus kisutch
L. Kobuke, J. Specker, H. Bern
1987110 citations Open access
Semantic Scholar
Cortisol mediates the increase in intestinal fluid absorption in Atlantic salmon during parr-smolt transformation.
Philip A. Veillette, Kristina Sundell, J. Specker
1995General and Comparative Endocrinology97 citations Open access
Semantic Scholar
Nondestructive indicator of ethoxyresorufin‐O‐deethylase activity in embryonic fish
D. Nacci, L. Coiro, A. Kuhn, D. Champlin +3 more
199894 citations Open access
Semantic Scholar
Cortisol stimulates hypo-osmoregulatory ability in Atlantic salmon, Salmo salar L.
G. Bisbal, J. Specker
199193 citations Open access
Semantic Scholar
Induction by beta-estradiol of vitellogenin in striped bass (Morone saxatilis): characterization and quantification in plasma and mucus.
Mitsuyo Kishida, T. R. Anderson, J. Specker
1992General and Comparative Endocrinology91 citations Open access
Semantic Scholar
Annual cycle of plasma androgens and testicular composition in the rough-skinned newt, Taricha granulosa.
J. Specker, Frank L. Moore
1980General and Comparative Endocrinology87 citations
Semantic Scholar
Factors determining the occurrence of the surge in thyroid activity in salmon during smoltification
E. Grau, J. Specker, R. Nishioka, H. Bern
198285 citations
Semantic Scholar
Interrenal function and smoltification
J. Specker
198282 citations
Semantic Scholar
Infectious necrotizing enteritis and mortality caused by Vibrio carchariae in summer flounder Paralichthys dentatus during intensive culture.
B. Soffientino, Todd Gwaltney, David R. Nelson, J. Specker +2 more
1999Diseases of Aquatic Organisms79 citations Open access
Semantic Scholar
Effects of photoperiod on growth and smolting in juvenile Atlantic salmon (Salmo salar)
R. Saunders, J. Specker, M. P. Komourdjian
198973 citations Open access
Semantic Scholar
Vitellogenin in tilapia (Oreochromis mossambicus): Induction of two forms by estradiol, quantification in plasma and characterization in oocyte extract
Mitsuyo Kishida, J. Specker
1993Fish Physiology & Biochemistry68 citations Open access
Semantic Scholar
Preadaptive Role of Thyroid Hormones in Larval and Juvenile Salmon: Growth, the Gut and Evolutionary Considerations
J. Specker
198864 citations
Semantic Scholar
Metamorphosis of Summer Flounder (Paralichthys dentatus): Thyroid Status and the Timing of Gastric Gland Formation
Liyue Huang, A. M. Schreiber, B. Soffientino, D. Bengtson +1 more
199862 citations Open access
Semantic Scholar
Methodology for implanting cortisol in Atlantic salmon and effects of chronically elevated cortisol on osmoregulatory physiology
J. Specker, David M. Portesi, Shane C. Cornell, Philip A. Veillette
199458 citations Open access
Semantic Scholar
CHAPTER 48 - Developing an ELISA for a model protein — vitellogenin
J. Specker, T. Anderson
199454 citations Open access
Semantic Scholar
Development-associated changes in thyroxine kinetics in juvenile salmon.
J. Specker, J. Distefano, E. Grau, R. Nishioka +1 more
1984Endocrinology54 citations
Semantic Scholar
Metamorphosis in the summer flounder, Paralichthys dentatus: thyroidal status influences gill mitochondria-rich cells.
Alexander M. Schreiber, J. Specker
2000General and Comparative Endocrinology50 citations Open access
Semantic Scholar
Metamorphosis in the summer flounder, Paralichthys dentatus: thyroidal status influences salinity tolerance.
Alexander M. Schreiber, J. Specker
1999The Journal of experimental zoology50 citations
Semantic Scholar
Parr-smolt transformation in Atlantic salmon: thyroid hormone deiodination in liver and brain and endocrine correlates of change in rheotactic behavior
J. Specker, J. Eales, M. Tagawa, W. A. Tyler
200049 citations Open access
Semantic Scholar
Changes in gonadal hormones during oocyte development in the striped bass,Morone saxatilis
D. Berlinsky, J. Specker
1991Fish Physiology & Biochemistry46 citations Open access
Semantic Scholar
Oocyte development in summer flounder: seasonal changes and steroid correlates.
R. R. Merson, C. Casey, C. Martínez, B. Soffientino +2 more
200045 citations
Semantic Scholar
In vitro effects of homologous prolactins on testosterone production by testes of tilapia (Oreochromis mossambicus).
David A. Rubin, J. Specker
1992General and Comparative Endocrinology45 citations Open access
Semantic Scholar
Changes in intestinal fluid transport in Atlantic salmon (Salmo salar L) during parr-smolt transformation
Philip A. Veillette, Ronald J. White, J. Specker
1993Fish Physiology & Biochemistry44 citations Open access
Semantic Scholar
Metamorphosis in summer flounder: manipulation of thyroid status to synchronize settling behavior, growth, and development
Steven Gavlik, M. Albino, J. Specker
200242 citations Open access
Semantic Scholar
Tilapia , Sarotherodon melanotheron ( Pisces : Cichlidae ) : Changes in Gonadal Steroids and Potential for Vitellogenin Transfer to Larvae
Mitsuyo Kishida, J. Specker
200042 citations
Semantic Scholar
Vitellogenin in the surface mucus of tilapia (Oreochromis mossambicus): Possibility for uptake by the free‐swimming embryos
Mitsuyo Kishida, J. Specker
199442 citations Open access
Semantic Scholar
In vitro effects of arginine vasotocin on testosterone production by testes of rainbow trout (Oncorhynchus mykiss).
Mildred Rodríguez, J. Specker
1991General and Comparative Endocrinology41 citations Open access
Semantic Scholar
Mouthbrooding in the black-chinned tilapia, Sarotherodon melanotheron (Pisces: Cichlidae): the presence of eggs reduces androgen and estradiol levels during paternal and maternal parental behavior.
J. Specker, Mitsuyo Kishida
2000Hormones and Behavior39 citations Open access
Semantic Scholar
Osmoregulatory physiology of pyloric ceca: regulated and adaptive changes in chinook salmon.
Philip A. Veillette, Ronald J. White, J. Specker, G. Young
2005Journal of Experimental Zoology Part A Comparative Experimental Biology38 citations Open access
Semantic Scholar
Asynchrony of changes in tissue and plasma thyroid hormones during the parr-smolt transformation of coho salmon.
J. Specker, Christopher L. Brown, H. Bern
1992General and Comparative Endocrinology37 citations Open access
Semantic Scholar
Growth hormone- and prolactin-producing cells in the pituitary gland of striped bass (Morone saxatilis): immunocytochemical characterization at different life stages.
Liyue Huang, J. Specker
1994General and Comparative Endocrinology36 citations Open access
Semantic Scholar
Environmental salinity and the thyroidal response to thyrotropin in juvenile coho salmon (Oncorhynchus kisutch).
J. Specker, N. Richman
1984The Journal of experimental zoology34 citations
Semantic Scholar
Aromatase is concentrated in the proximal pars distalis of tilapia pituitary.
G. Callard, J. Specker, Jonathan B. Knapp, R. Nishioka +1 more
1988General and Comparative Endocrinology31 citations Open access
Semantic Scholar
Thyroidal response to mammalian thyrotropin during smoltification of coho salmon (Oncorhynchus kisutch)
J. Specker, C. Schreck
198431 citations
Semantic Scholar
Metamorphosis in the summer flounder Paralichthys dentatus: changes in gill mitochondria-rich cells.
Alexander M. Schreiber, J. Specker
1999Journal of Experimental Biology30 citations
Semantic Scholar
Metamorphosis in summer flounder: effects of acclimation to low and high salinities
J. Specker, A. M. Schreiber, M. McArdle, Ariel Poholek +2 more
199930 citations Open access
Semantic Scholar
Incorporation and metabolism of cortisol in oocytes of tilapia (Oreochromis mossambicus).
M. Tagawa, Keiko Suzuki, J. Specker
2000The Journal of experimental zoology29 citations Open access
Semantic Scholar
Immunocytochemical and immunogold localization of two prolactin isoforms in the same pituitary cells and in the same granules in the tilapia (Oreochromis mossambicus).
J. Specker, Mitsuyo Kishida, Liyue Huang, David S. King +3 more
1993General and Comparative Endocrinology29 citations Open access
Semantic Scholar
Cortisol stress response of juvenile winter flounder (Pseudopleuronectes americanus, Walbaum) to predators
J. Breves, J. Specker
200528 citations Open access
Semantic Scholar
Investigations into the causes of early larval mortality in cultured summer flounder (Paralichthys dentatus L.)
D. Alves, J. Specker, D. Bengtson
199927 citations Open access
Semantic Scholar
Seawater‐acclimation and the thyroidal response to thyrotropin in juvenile coho salmon (Oncorhynchus kisutch)
J. Specker, L. Kobuke
198727 citations Open access
Semantic Scholar
Ultrastructural analysis of the developing follicle during early vitellogenesis in tilapia, Oreochromis niloticus, with special reference to the steroid-producing cells
M. Nakamura, J. Specker, Y. Nagahama
1993Cell and Tissue Research26 citations Open access
Semantic Scholar
The effects of light reception on circulating estrogen levels in female goldfish, Carassius auratus: importance of retinal pathways versus the pineal.
G. Delahunty, C. Schreck, J. Specker, J. Olcese +2 more
1979General and Comparative Endocrinology25 citations
Semantic Scholar

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H. Bern×7
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H. Bern — researcher profile on SciRah
R. Nishioka×5
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Alexander M. Schreiber×4
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Philip A. Veillette×4
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Mitsuyo Kishida

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B. Soffientino×3

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Liyue Huang — researcher profile on SciRah

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D. Bengtson — researcher profile on SciRah

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D. Nacci — researcher profile on SciRah

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K. Cooper — researcher profile on SciRah

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C. Schreck — researcher profile on SciRah