... harvest inlaketrout sport fisheries on Precambrian Shield lakes 193 Charles H Olver, Daniel Nadeau, and Henri Fournier Chapter 12 Laketroutstockinginsmall lakes: factorsaffectingsuccess ... Olver, C.H., 1995, Introduction of laketrout (Salvelinus namaycush) to inland lakes of Ontario, Canada: factors contributing to successful colonization, Journal of Great Lakes Research 21(Suppl ... in a deep, cold lake (Michaud) where it maintains its preferred temperature by staying in the hypolimnion or moving up and down in the water column In an extremely warm lake (Gullrock), the lake...
... harvest inlaketrout sport fisheries on Precambrian Shield lakes Charles H Olver, Daniel Nadeau, and Henri Fournier Chapter 12 Laketroutstockinginsmall lakes: factorsaffectingsuccess Michael ... thermoregulation inlaketrout The graph shows the core body temperature of a laketroutin a deep, cold lake (Michaud) where it maintains its preferred temperature by staying in the hypolimnion or moving ... Olver, C.H., 1995, Introduction of laketrout (Salvelinus namaycush) to inland lakes of Ontario, Canada: factors contributing to successful colonization, Journal of Great Lakes Research 21(Suppl...
... Olver, C.H., 1995, Introduction of laketrout (Salvelinus namaycush) to inland lakes of Ontario, Canada — factors contributing to successful colonization, Journal of Great Lakes Research 21 (Suppl ... between laketroutinLake Opeongo and those inLake Louisa in Algonquin Park provided a widely touted example of this (Martin and Olver, 1980) Recent data, however, indicate that either feeding/growth ... M.K., 1993, Intralacustrine speciation of Salvelinus namaycush inLake Superior: an investigation of genetic and morphological variation and evolution of laketroutin the Laurentian Great Lakes, ...
... and stocking Most of these laketrout were hatchery-origin fish, the survivors of past stockings Similar increases inlaketrout abundance occurred inLake Ontario in the late 1970s and inLake ... by laketroutin the Great Lakes Approximately 330 million yearling and fingerling laketrout were released into the Great Lakes from 1950 to 2001, primarily into near-shore areas (Table 3.1) In ... recorded inLake Erie in 1921, inLake Michigan in 1936, inLake Huron in 1937, and inLake Superior in 1938 (Smith and Tibbles, 1980) By the 1950s, sea lampreys were very abundant in all the Great Lakes...
... determined the pattern and importance of drawdowns in 85 laketroutlakes A large number (50) of these lakes had drawdowns occurring after laketrout spawning Drawdowns occurred before lake spawning ... the many factorsaffectinglaketrout s adaptation in reservoirs (Machniak, 1975; Evans et al., 1991) Among the foregoing factors, drawdown is often pinpointed as the cause of the laketrout' s ... many laketrout spawning grounds observed in Ontario (MacLean et al., 1990) For the lake trout, spawning in very deep zones appears more of an exception than the rule because in Ontario lakes...
... epilimnia in smaller lakes to increase in thickness by to m as a result of a twofold increase in atmospheric CO2 levels Acidification of lakes by the input of mineral acids also results in increased ... nursery habitat, and stocking on the dynamics and productivity of laketrout populations in Ontario lakes, InLakeTrout Synthesis, Response to Stress Working Group, Ontario Ministry of Natural ... habitat, whereas lakes with only 10 to 25% of their volume as optimal habitat could lose 50% or more of the remaining habitat, putting the continued success of the laketrout populations in jeopardy...
... concentration distributions in 102 laketroutlakes and 394 lakes without laketroutin Ontario The distribution of TP inlaketroutlakesin Quebec (Figure 7.3) was very similar to that in Ontario (Prairie, ... Total phosphorus concentration distributions in 125 Quebec laketroutlakes (from Prairie, 1994) 25 LakeTroutlakes Non -Lake TroutLakes Percent of Lakes 20 15 10 >600 550-600 500-550 450-500 ... phosphorus concentration distributions in 293 laketroutlakes and 927 lakes with no laketroutin Ontario are shown in Figure 7.2 A total of 61% of the laketroutlakes surveyed had TP concentrations...
... future contaminant trends in predatory fish, including lake trout, in Boreal lakes Declines in atmospheric deposition, increased fishing pressure, and a reduced supply of DOC to lakes from their ... MeHg to lakes from their watersheds The acidification of lakes by atmospheric deposition of pollutants may be increasing Hg concentrations inlaketroutinsmall Boreal lakes Experimental lake acidification ... limits Finally, some speculation is made about future trends of Hg inlaketrout populations Mercury concentrations inlaketrout populations insmall Boreal lakes Mercury concentrations inlake trout...
... conditions in these lakes Finally, lakes with ANC values greater than 50 µeq L-1 are considered relatively insensitive to inputs of acidic deposition Results from the EMAP survey indicate that in the ... increased and ANC values decreased during winter, with maximum NO3- concentrations and minimum ANC values occurring during spring snowmelt Seasonal increases in NO3were also associated with increases ... concentrations of inorganic monomeric Al, in comparison to lakes with fish (Gallagher and Baker, 1990) Small, high-elevation lakesin the Adirondacks are more likely to be fishless than larger lakes at...
... the closure of lakes to fishing in alternate years This system was instituted on a number of laketrout and brook trout Salvelinus fontinalis lakesin Algonquin Park, Ontario, in response to ... seasons In Minnesota only one line is permitted in the winter on designated trout lakes, while in Ontario a one-line restriction in the winter applies to only one division and several individual lakes ... ice fishing on laketrout stocks in Ontario arose shortly after winter open seasons for laketrout were established in inland lakesin 1957 (Armstrong, 1961) Hughson (1961) reported that in the...
... uninvaded reference lakes (Vander Zanden et al., 1999) All of these lakes supported native, self-sustaining laketrout fisheries Like most small headwater lakesin the region, these lakes lacked pelagic ... invaders in individual Shield lakes By focusing on predicting occurrences and impacts in individual lakes, lakes that are most vulnerable to invaders can be identified This should be useful to lake ... Ontario lakes containing lake trout, bass were predicted but not observed (i.e., false presence) in 59 of these lakes Thus while bass not presently occur in these 59 lakes, the model indicates...
... harvest (kg ha−1) of laketroutin Michaud Lake during the winter and spring of 1998, the year the lake opened to fishing laketrout spawning sites were within 20 m of a stream inlet Our study showed ... 14.1 Whitepine Lake and Helen Lake Spawning Sites Spawning sites used Year Lake 15 18 41 44 39 52 41 41 Helen Lake 1997 1999 Sites producing alevins (%) Spawning habitat covered Egg Adjoining deposition ... Whitepine Lake The two principal study lakes, Whitepine and Michaud, have very simple fish communities dominated by small- bodied lake trout, typical of populations with a mainly planktivorous or insectivorous...
... types of laketroutlakes on the Shield The first is a southern group of very large lakes, including a large portion of the Laurentian Great LakesIn these massive, deep lakes, natural laketrout ... LTER lakesin 1981 and continues More information on the lakes, current research, and online data catalogue is available at http://limnosun.limnology.wisc.edu/ Sudbury area lakes Monitoring of lakes ... Molot, L.A., 2003, Laketrout (Salvelinus namaycush) habitat volumes and boundaries in Canadian Shield lakes, in Boreal Shield Watersheds: LakeTrout Ecosystems in a Changing Environment, Gunn,...
... Moreover, the increase in production potential, that is achievable, may be determined 2.1 Factors governing coffee production A number of studies have examined input factorsaffecting agricultural ... role in the well-being of people in the province In 2009, total coffee planted area in the province was 181,960 hectares accounting for about 40% of the total agricultural area in the province ... technical efficiency of coffee farming and to evaluate factorsaffecting the technical inefficiency insmall holder coffee farms in the Krong Ana Watershed, Dak Lak province, Vietnam Results from this...
... improve the intestinal maladies following weaning Factors Associated With Small Intestinal Changes Pathogenic Bacteria Small Intestinal Changes The lumen (inside) lining of the small intestine is ... nonessential amino acid for swine However, glutamine has been recognized by the human health community to help maintain gastrointestinal growth during intravenous feeding and after gastrointestinal surgery ... (EGF), insulin-like growth factors (IGF-I and IGF-II), and insulin are hormones that influence growth of tissues, including the gastrointestinal tract All of these hormones have been found in sow...
... convenient sampling The author will interview people working insmall and medium enterprises in Hanoi The interview was conducted during half a month After inputting and cleaning data, the total ... factorsaffecting e-commerce successin SMEs The proposed model is shown in Fig 2.11 Here, the factors are divided into Independent Factor that is Organizational, Management, Technological, Individual, ... identified the factors exerting influence on the adoption of Business-to- Business Electronic Commerce in SMEs Furthermore these factors have been combined into a model to describe and explain the drivers...
... 100.0% HaiPhong NinhBinh ThanhHoa Total The survey of 120 enterprises in the North of Vietnam (26 in Quang Ninh, 28 in Hai Phong, 14 in nam Dinh, 12 in Thai Binh, 16 in Ninh Binh and 24 in Thanh Hoa) ... enterprises in the North of Vietnam (26 in Quang Ninh, 28 in Hai Phong, 14 in nam Dinh, 12 in Thai Binh, 16 in Ninh Binh and 24 in Thanh Hoa) shows that: - enterprises in Quang Ninh are ranked ... aquaculture enterprises (26 in Quang Ninh, 28 in Hai Phong, 14 in Nam Dinh, 12 in Thai binh, 16 in Ninh Binh and 24 in Thanh Hoa) shows that: 25 enterprises in Quang Ninh are ranked at high level,...
... these factorsin making their decision about adoption and try to improve those factors that are within their control 13 By increasing financial resources for adopting, implementing and supporting ... Summary of the findings The Factors Analysis were executed to graft groups and eliminate the items in factors, we achieved the following results In the factors analysis of SMEs‟ readiness to adopt, ... with maintaining domestic operations actively, Vietnam will definitely continue to receive more attentions from importers in a near future (Mr Vincent Wong, Senior Managing Director of Business...
... *Continuing in- depth investment, innovation of technology and equipment; mechanize and automate processing line by attracting foreign investment in order to rapidly approach advanced processing ... aquaculture industry in the north of Vietnam Based on the evaluation results in terms of capacity’ factors of enterprises in the provinces: Quangninh, HaiPhong, NamDinh, Thaibinh, Ninhbinh, Thanhhoa ... competitiveness between provinces in Northern Vietnam in aquaculture industry According to evaluating eight indicators : Financial Capability, intangible assets, equipment, marketing, production capacity,...