Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Howard Gowing"'
Autor:
Walter T. Momot, Howard Gowing
Publikováno v:
Journal of the Fisheries Research Board of Canada. 34:1212-1219
Life tables can aid in assessing the impact of exploitation of the crayfish Orconectes virilis by fish, invertebrates, and man. The major response of the population to exploitation comes through an adjustment of both the mx column (egg production) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e1fbca3acd14516cae3f0f3da246d34
https://doi.org/10.1139/f77-177
https://doi.org/10.1139/f77-177
Autor:
Howard Gowing, Walter T. Momot
Publikováno v:
Journal of the Fisheries Research Board of Canada. 34:2030-2040
Fluctuations in mortality rather than in growth rates produced most of the year-to-year differences in biomass accumulation of three different populations of the crayfish Orconectes virilis. Yearly biomass changes resulted from density-dependent cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c915624e19742d6bbedcdbf93314114
https://doi.org/10.1139/f77-272
https://doi.org/10.1139/f77-272
Publikováno v:
North American Journal of Fisheries Management. 1:1-14
Since establishment of the Board of Fish Commissioners in 1873, the trend in Michigan trout fishing regulations has been toward more restrictive and complex laws. Major scientific investigations concerning the effectiveness of various types of regula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c93d2453391cd35e5ed1242695f4608
https://doi.org/10.1577/1548-8659(1981)1<1:ahaeor>2.0.co
https://doi.org/10.1577/1548-8659(1981)1<1:ahaeor>2.0.co
Autor:
Howard Gowing, Walter T. Momot
Publikováno v:
Freshwater Biology. 13:1-12
SUMMARY. Cohort production of the crayfish. Orconectes virilis, ranged from 148.8 to 70.2 kg in North Twin Lake (surface area 1.9 ha) and from 151.9 to 84.9 kg in West Lost Lake (surface area 1.4 ha). Both cohort production (P) and cohort mean biomas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3328d5d70651ee89037a346e0588ceb
https://doi.org/10.1111/j.1365-2427.1983.tb00653.x
https://doi.org/10.1111/j.1365-2427.1983.tb00653.x
Publikováno v:
Transactions of the American Fisheries Society. 109:587-602
A mathematical model of trout-stream fisheries was developed that can be used to evaluate a variety of fishing regulations. Density-dependent mortality was found in the first 2 years of life for each of the two brook trout (Salvelinus fontinalis) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2b1952c706a8777a51bcd074f73c499
https://doi.org/10.1577/1548-8659(1980)109<587:mdotf>2.0.co
https://doi.org/10.1577/1548-8659(1980)109<587:mdotf>2.0.co
Autor:
Howard Gowing, Walter T. Momot
Publikováno v:
Journal of the Fisheries Research Board of Canada. 34:2041-2055
Populations of the crayfish Orconectes virilis were exploited using the Paulik–Bayliff modification of the Ricker model in two small lakes. After harvesting with traps at maximum sustained yield (MSY) for 3 yr, fishing effort was increased fourfold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aac9fb78987d12a44cfe50c7041ada95
https://doi.org/10.1139/f77-273
https://doi.org/10.1139/f77-273
Autor:
Howard Gowing
Publikováno v:
North American Journal of Fisheries Management. 6:242-251
Matched numbers of Assinica strain brook trout (Salvelinus fontinalis) and hybrid brook trout (Assinica male x domestic female) were planted in the fall in five lakes and a pond-each at the rate of 125 fingerlings/hectare. At the outset, the Assinica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::535391d7354cc2918ff766d85b2849ac
https://doi.org/10.1577/1548-8659(1986)6<242:sagomp>2.0.co
https://doi.org/10.1577/1548-8659(1986)6<242:sagomp>2.0.co
Autor:
Robert J. Ellis, Howard Gowing
Publikováno v:
Limnology and Oceanography. 2:299-308
Field study revealed great differences in the biological productivity of two adjacent areas of a Michigan trout stream resulting from the entrance of domestic sewage into the stream between the two areas. Monthly samples were collected from the two a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3c9ff642575baa837c4d62661e7ca51
https://doi.org/10.1002/lno.1957.2.4.0299
https://doi.org/10.1002/lno.1957.2.4.0299
Autor:
Howard Gowing, Walter T. Momot
Publikováno v:
Ecology. 53:479-483
In an earlier study during 1962 and 1963, movement of female Orconectes virilis from shallow to deeper water in summer was noted in West Lost Lake, Otsego County, Michigan. The present additional observations on O. virilis, during three summers and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c86a3db93e022078c11a123153090655
https://doi.org/10.2307/1934236
https://doi.org/10.2307/1934236
Publikováno v:
American Midland Naturalist. 99:10
An understanding of the population dynamics of crayfish and their trophic position is critical to understanding energy transformation in lakes. In many lakes crayfish dominate the annual production of the benthic biomass, at times reaching mean bioma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2096c347566da9eb939a800536b7f83
https://doi.org/10.2307/2424930
https://doi.org/10.2307/2424930