Zobrazeno 1 - 10
of 13
pro vyhledávání: '"David M. Koester"'
Publikováno v:
Fisheries Research. 147:202-212
Age at size was linked to sexual maturity in 147 male and 249 female spiny dogfish, Squalus acanthias, from the Gulf of Maine using three criteria: (1) gross reproductive morphology, (2) histology and (3) steroid hormone concentrations. Collected spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::020264d18408ddf98c57dcdab353b01e
https://doi.org/10.1016/j.fishres.2013.06.004
https://doi.org/10.1016/j.fishres.2013.06.004
Indication of Density-Dependent Changes in Growth and Maturity of the Barndoor Skate on Georges Bank
Autor:
William B. Driggers, David B. Rudders, James A. Sulikowski, Karson Coutré, David M. Koester, Todd Gedamke
Publikováno v:
Marine and Coastal Fisheries. 5:260-269
Drastic increases or decreases in biomass often result in density-dependent changes in life history characteristics within a fish population. Acknowledging this phenomenon and in light of the recent biomass increase in Barndoor Skate Dipturus laevis,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d5f8c5f9ac26e999987a2c852e3b496
https://doi.org/10.1080/19425120.2013.824941
https://doi.org/10.1080/19425120.2013.824941
Publikováno v:
Marine and Coastal Fisheries. 5:174-180
An intersexual Blacktip Shark Carcharhinus limbatus with a testis, immature female reproductive tracts (embedded), and claspers was caught in the Gulf of Mexico. Histology of the single gonad revealed that all stages of spermatogenesis were occurring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d654ef6e8dc8e44498c1c843d740b909
https://doi.org/10.1080/19425120.2013.799618
https://doi.org/10.1080/19425120.2013.799618
Publikováno v:
Environmental Biology of Fishes. 92:585-589
Landings of the little skate, Leucoraja erinacea, within the territorial waters of the United States are currently regulated by a federal fishery management plan (FMP). For a FMP to be effective, thorough knowledge of a species’ reproductive biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ec22c03d432d20e89b98c6372e30e60
https://doi.org/10.1007/s10641-011-9854-7
https://doi.org/10.1007/s10641-011-9854-7
Autor:
James A. Sulikowski, G. W. Ingram, David M. Koester, Jeff Kneebone, William B. Driggers, Paul C. W. Tsang, A. M. Cicia
Publikováno v:
Journal of Fish Biology. 75:1648-1666
Size and age estimates at sexual maturity were determined for 162 male and 273 female little skates Leucoraja erinacea collected from the western Gulf of Maine. Maturity ogives suggest that 50% maturity in females occurs at age 9.5 years and 480 mm t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b75aabc0532a0b32f0b26482b0853887
https://doi.org/10.1111/j.1095-8649.2009.02392.x
https://doi.org/10.1111/j.1095-8649.2009.02392.x
Autor:
David M. Koester, Carl P. Spirito
Publikováno v:
Copeia. 2003:553-561
We investigated the use of the pelvic fins for locomotion along the bottom in the little skate, Leucoraja erinacea by video recording locomotor behavior of skates both in the field and in captivity and by examining various anatomical preparations of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1282adacffb9e384ec190da4f57ed3b
https://doi.org/10.1643/cg-02-153r1
https://doi.org/10.1643/cg-02-153r1
Autor:
David M. Koester
Publikováno v:
The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology. 273(1)
The electric organ of skates is a paired structure within the tail consisting of two longitudinal columns of electrocytes contained within the lateral musculature on each side of the vertebral column. The electrocytes develop from hypaxial skeletal m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e59041abd5b8b1812c84029d92e87c7
https://pubmed.ncbi.nlm.nih.gov/12808649
https://pubmed.ncbi.nlm.nih.gov/12808649
Publikováno v:
The American journal of physiology. 274(1)
The effects of an opioid agonist, [d-Ala2]methionine enkephalinamide (DAME), administered into the rostral ventrolateral medulla (rVLM) or caudal ventrolateral medulla (cVLM) on cardiovascular responses to isometric muscle contraction were determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ebb779cef2ad0bfeb8c34f355fff85c
https://pubmed.ncbi.nlm.nih.gov/9458862
https://pubmed.ncbi.nlm.nih.gov/9458862
Autor:
DAVID M. KOESTER
Publikováno v:
American Zoologist. 34:716-716
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb266b507f8239ca029b5aad2c8ad49f
https://doi.org/10.1093/icb/34.6.716
https://doi.org/10.1093/icb/34.6.716
Autor:
David M. Koester, Robert F. Dunn
Publikováno v:
The Journal of Comparative Neurology. 260:564-572
Nerve degeneration studies were performed to determine the central projections of the octavus nerve in the guitarfish. Rhinobatos sp. Most first-order octavus nerve afferents are confined to the ventral longitudinal column of the medulla, which consi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b61fd5b63b55ece42ac9d704e373b2bc
https://doi.org/10.1002/cne.902600409
https://doi.org/10.1002/cne.902600409