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Journal articles on the topic 'Wild stocks'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 January 2023

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1

Raloff, Janet. "Salmon Hatcheries Can Deplete Wild Stocks." Science News 159, no. 22 (2001): 342. http://dx.doi.org/10.2307/3981712.

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2

Edwards, Steven F., Jason S. Link, and Barbara P. Rountree. "Portfolio management of wild fish stocks." Ecological Economics 49, no. 3 (2004): 317–29. http://dx.doi.org/10.1016/j.ecolecon.2004.04.002.

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3

Evans, David O., and Campbell C. Willox. "Loss of Exploited, Indigenous Populations of Lake Trout, Salvelinus namaycush, by Stocking of Non-Native Stocks." Canadian Journal of Fisheries and Aquatic Sciences 48, S1 (1991): 134–47. http://dx.doi.org/10.1139/f91-312.

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A deterministic, age-structured population model was developed to explore the combined effects of exploitation and stocking of hatchery-reared lake trout on native lake trout populations. Stocking of non-native lake trout at moderate to high exploitation rates caused loss of the recipient population, even when the stocked fish did not reproduce or interbreed with the native fish. If hatchery fish reproduce, their progeny mask the loss of the wild stock. At exploitation and stocking rates typical of lake trout populations in Ontario, the wild stock was replaced by the hatchery stock in a few ge

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4

Miller, Richard A., James M. Harper, Robert C. Dysko, Stephen J. Durkee, and Steven N. Austad. "Longer Life Spans and Delayed Maturation in Wild-Derived Mice." Experimental Biology and Medicine 227, no. 7 (2002): 500–508. http://dx.doi.org/10.1177/153537020222700715.

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Nearly all the experimental mice used in aging research are derived from lineages that have been selected for many generations for adaptation to laboratory breeding conditions and are subsequently inbred. To see if inbreeding and laboratory adaptation might have altered the frequencies of genes that influence life span, we have developed three lines of mice (Idaho [Id], Pohnpel [Po], and Majuro [Ma]) from wild-trapped progenitors, and have compared them with a genetically heterogeneous mouse stock (DC) representative of the laboratoryadapted gene pool. Mean life span of the Id stock exceeded t

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5

Koljonen, Marja-Liisa. "Annual changes in the proportions of wild and hatchery Atlantic salmon (Salmo salar) caught in the Baltic Sea." ICES Journal of Marine Science 63, no. 7 (2006): 1274–85. http://dx.doi.org/10.1016/j.icesjms.2006.04.010.

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Abstract DNA-level information from an eight-loci microsatellite baseline database of 32 Atlantic salmon (Salmo salar) stocks was used with a Bayesian estimation method to assess the stock and stock group proportions of Finnish salmon catches in the Baltic Sea area. The proportions of seven stock groups, important to fisheries management, were assessed in catch samples taken between 2000 and 2005. In the Gulf of Bothnia area, the proportion of wild fish in catches showed an increasing trend in all areas until 2003, mainly because of the decrease in total catches caused by the relatively greate

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6

Jiang, Shan. "Aquaculture, capture fisheries, and wild fish stocks." Resource and Energy Economics 32, no. 1 (2010): 65–77. http://dx.doi.org/10.1016/j.reseneeco.2009.06.002.

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7

Waples, Robin S. "Genetic interactions Between Hatchery and Wild Salmonids: Lessons from the Pacific Northwest." Canadian Journal of Fisheries and Aquatic Sciences 48, S1 (1991): 124–33. http://dx.doi.org/10.1139/f91-311.

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The potential for genetic interactions between hatchery and wild populations of salmonids in northwestern North America has increased considerably in recent decades. Efforts to mitigate severe losses to many wild stocks caused by overfishing, destruction of habitat, and blockage of migratory routes have focussed on boosting artificial production in public hatcheries. Opportunities for genetic interactions between hatchery and wild fish will increase if efforts to supplement wild production with hatchery-reared fish continue. Concerns center on three issues: (1) direct genetic effects (caused b

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8

Koljonen, Marja-Liisa. "Distinguishing between resident and migrating Atlantic salmon (Salmo salar) stocks by genetic stock composition analysis." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 4 (1995): 665–74. http://dx.doi.org/10.1139/f95-067.

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The possibility of using the genetic stock identification (GSI) method to distinguish between individual Atlantic salmon (Salmo salar) stocks and stock groups in Finnish catches was studied. In the Baltic Sea, the Atlantic salmon is a target of a mixed-stock fishery, and information about stock composition would be valuable for the management of the species. The salmon catches on the Finnish west coast consist of two seasonally variable components: a group of northern stocks migrating through the area to the Baltic main basin and the resident Neva salmon. The migratory component includes two e

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9

Kallio-Nyberg, Irma, Marja-Liisa Koljonen, and Irma Saloniemi. "Spawning-Age Differences and their Temporal Trends in Wild and Sea-Ranched Atlantic Salmon Stocks, from Stock Mixture Data." Open Fish Science Journal 7, no. 1 (2014): 46–58. http://dx.doi.org/10.2174/1874401x01407010046.

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Origin and age was determined for individual fish caught in offshore catches of Atlantic salmon stocks (Salmo salar L.) in the Baltic Sea over the years 2000–2009. DNA microsatellite loci and smolt age were used to probabilistically assign returning spawners to their stock of origin. Data for this study were based on approximately 2600 catch samples of the five most common wild and four sea-ranched, hatchery-reared stocks. Spawning age, and sex ratio differed both within and between these wild, and sea-ranched groups. The females were mainly (78.7%) two sea-winters old and the males usually (6

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10

Abbo, Shahal, Simcha Lev-Yadun, and Gideon Ladizinsky. "Tracing the wild genetic stocks of crop plants." Genome 44, no. 3 (2001): 309–10. http://dx.doi.org/10.1139/g01-008.

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11

Michielsens, Catherine G. J., Murdoch K. McAllister, Sakari Kuikka, et al. "A Bayesian statespace markrecapture model to estimate exploitation rates in mixed-stock fisheries." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 2 (2006): 321–34. http://dx.doi.org/10.1139/f05-215.

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A Bayesian statespace markrecapture model is developed to estimate the exploitation rates of fish stocks caught in mixed-stock fisheries. Expert knowledge and published results on biological parameters, reporting rates of tags and other key parameters, are incorporated into the markrecapture analysis through elaborations in model structure and the use of informative prior probability distributions for model parameters. Information on related stocks is incorporated through the use of hierarchical structures and parameters that represent differences between the stock in question and related s

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12

Vu, Nguyen Thanh, Tran Thi Thuy Ha, Vo Thi Bich Thuy, Vu Thi Trang, and Nguyen Hong Nguyen. "Population Genomic Analyses of Wild and Farmed Striped Catfish Pangasianodon Hypophthalmus in the Lower Mekong River." Journal of Marine Science and Engineering 8, no. 6 (2020): 471. http://dx.doi.org/10.3390/jmse8060471.

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The striped catfish Pangasianodon hypophthalmus is an important freshwater fish cultured in many countries where the collection of wild brooders is still widely practiced. Global farming development of this species makes use of significant natural resources that pose challenges for the genetic diversity of striped catfish. Hence, this study aims to conduct a systematic genetic diversity assessment of wild and farmed catfish stocks collected from four major pangasius-farming countries, using a new genotyping by sequencing platform known as DArT-seq technology. Our population genomic analyses us

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13

Ahammad, AK Shakur, Md Borhan Uddin Ahmed, Salma Akhter, and Md Kamal Hossain. "Landmark-based morphometric and meristic analysis in response to characterize the wild Bhagna, Labeo ariza populations for its conservation." Journal of the Bangladesh Agricultural University 16, no. 1 (2018): 164–70. http://dx.doi.org/10.3329/jbau.v16i1.36498.

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The landmark-based morphometric and meristic analysis of three different stocks from the Atrai, the Jamuna and the Kangsha of Bhagna (Labeo ariza, Hamilton 1807) were examined from a phenotypical point of view to evaluate the population structure and to assess shape variation. A total of 90 Bhagna (L. ariza) were collected from three different water bodies: the Atrai, the Jamuna and the Kangsha of Bangladesh during January, 2017. Ten morphometric and nine meristic characters were analyzed along with twenty-two truss network measurements. One way ANOVA showed that all morphometric, meristic and

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14

Gorenskaya, O. V., and V. V. Navrotskaya. "Analysis of the role of tryptophan-kynurenine pathway in the life span control in Drosophila melanogaster." Faktori eksperimental'noi evolucii organizmiv 25 (August 30, 2019): 32–37. http://dx.doi.org/10.7124/feeo.v25.1135.

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Aim. To analyze life span in mutant Drosophila stocks with impaired tryptophan-kynurenine metabolism. Methods. Wild type stocks Canton-S and Oregon, stocks with mutations of the locus white: white, whiteapricot, whitesatsuma, and stocks with the mutation vermilion have been used. The average life span of imago has been determined, survival curves have been analyzed. Results. It has been shown that the average life span of Drosophila females with mutant alleles of the white gene does not differ from the wild-type stock; in males of the w(C-S) and wa(C-S) stocks the index is increased. The prese

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15

Calcagnotto, Daniela, and Silvio de Almeida Toledo-Filho. "Loss of genetic variability at the transferrin locus in five hatchery stocks of tambaqui (Colossoma macropomum)." Genetics and Molecular Biology 23, no. 1 (2000): 127–30. http://dx.doi.org/10.1590/s1415-47572000000100023.

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Knowledge and conservation of the genetic variability in stocks maintained as live gene banks have become a high priority task for Brazilian fish culture. The aim of the present survey was to assess the transferrin allelic diversity of five hatchery stocks of tambaqui (Colossoma macropomum). The tambaqui stock from Pentecoste, the oldest maintained in Brazilian hatchery stations, retained three of the six alleles detected in wild populations of tambaqui from the Amazon River. Other hatchery stocks, directly or indirectly derived from the Pentecoste stock, did not show transferrin allelic varia

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16

Reisenbichler, R. R., and S. R. Phelps. "Genetic Variation in Steelhead (Salmo gairdneri) from the North Coast of Washington." Canadian Journal of Fisheries and Aquatic Sciences 46, no. 1 (1989): 66–73. http://dx.doi.org/10.1139/f89-010.

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Steelhead (Salmo gairdneri) collected from various sites in nine drainages in northwestern Washington were genetically characterized at 65 protein-coding loci by starch-gel electrophoresis. Genetic differentiation within and among drainages was not significant, and genetic variation among drainages was much less than that reported in British Columbia; these results may be the consequence of gene flow from hatchery stocks that have been released in Washington since the 1940's. Allele frequencies varied significantly among year-classes (hence, genetic characterization studies must include data f

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17

Peumans, Willy J., Anthony K. Allen, Makuta Nsimba-Lubaki, and Maarten J. Chrispeels. "Related glycoprotein lectins from root stocks of wild cucumbers." Phytochemistry 26, no. 4 (1987): 909–12. http://dx.doi.org/10.1016/s0031-9422(00)82315-8.

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18

Verspoor, Eric. "Reduced Genetic Variability in First-Generation Hatchery Populations of Atlantic Salmon (Salmo salar)." Canadian Journal of Fisheries and Aquatic Sciences 45, no. 10 (1988): 1686–90. http://dx.doi.org/10.1139/f88-199.

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Levels of genetic variation were measured in first-generation Atlantic salmon (Salmo salar) cultured for stock enhancement programs in eastern Canada and compared with variation in wild stocks. One regulatory and 19 structural protein loci were screened of which 10 were polymorphic. Mean heterozygosity and number of alleles per locus were positively correlated with the effective number of adults (N) used to establish the hatchery groups and averaged 26 and 12% lower, respectively, than wild stocks. The observations are consistent with a loss of genetic variability in the hatchery salmon from r

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19

Flem, Belinda, Vidar Moen, and Andreas Grimstvedt. "Trace Element Analysis of Scales from Four Populations of Norwegian Atlantic Salmon (Salmo Salar L.) for Stock Identification Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry." Applied Spectroscopy 59, no. 2 (2005): 245–51. http://dx.doi.org/10.1366/0003702053085188.

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The pre-smolt stage of the scale of adult Norwegian Atlantic salmon from four populations, encompassing both farmed and wild hatchery stocks, has been analyzed by laser ablation inductively coupled plasma mass spectrometry (LA-HR-ICP-MS). The purpose of this study was to test for differences in elemental composition between stocks of Atlantic salmon that have lived in separate fresh water locations until the smoltification and natural run out or transportation to the sea-cages. The populations studied were from fish farms located at Bremanger and Sørfold, a cultivated stock from Mossa, and one

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20

Nielsen, Jennifer L., Christina Gan, and W. Kelley Thomas. "Differences in Genetic Diversity for Mitochondrial DNA Between Hatchery and Wild Populations of Oncorhynchus." Canadian Journal of Fisheries and Aquatic Sciences 51, S1 (1994): 290–97. http://dx.doi.org/10.1139/f94-316.

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Amplification by the polymerase chain reaction and sequencing of a highly variable segment (199 base pairs) of mitochondrial DNA (mtDNA) in 491 fish from 22 streams and 9 hatcheries revealed 9 mtDNA types in steelhead trout (Oncorhynchus mykiss), 5 types in coho salmon (O. kisutch), and 6 types in chinook salmon (O. tshawytscha). Likelihood chi-square analysis of frequencies of mtDNA types in eight paired comparisons of hatchery and geographically proximate wild populations of Oncorhynchus showed significant differences in mtDNA genotypes. More mtDNA types were found, on average, in contempora

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21

Liukkonen, T., L. Kvist, and S. Mykrä. "Microsatellite markers show distinctiveness of released and wild grey partridges in Finland." Animal Biodiversity and Conservation 35, no. 2 (2012): 419–28. http://dx.doi.org/10.32800/abc.2012.35.0419.

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The main aim of this study was to study whether the present game farm stocks used for releases to the wild in Finland are similar to wild populations in their genetic structure, and if not, whether the wild populations show any signs of hybridisation. A total of 301 feather samples and ten microsatellite loci were used. Samples were collected from France, Great Britain, Finland (wild and captive) and Greece. We estimated pairwise FST–values between study populations, examined population structure and identified possible first generation migrants. Pairwise FST–values indicated structuring among

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22

Levings, C. D., C. D. McAllister, and B. D. Chang. "Differential Use of the Campbell River Estuary, British Columbia by Wild and Hatchery-Reared Juvenile Chinook Salmon (Oncorhynchus tshawytscha)." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 7 (1986): 1386–97. http://dx.doi.org/10.1139/f86-172.

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From March 1982 to December 1983, juvenile chinook salmon (Oncorhynchus tshawytscha) were sampled by beach-seine in the Campbell River estuary and adjacent waters of Discovery Passage in order to examine estuarine use by wild and hatchery stocks. Wild juvenile chinook entered the estuary as migrant fry and were present in the estuarine zone mainly in late April to June, in the transition zone in mid-May to July, and in the marine zone in July. Hatchery fish were released from early May to early July. Maximum catches of wild stocks were similar in the estuarine and transition zones, while the m

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23

Labelle, M., C. J. Walters, and B. Riddell. "Ocean survival and exploitation of coho salmon (Oncorhynchus kisutch) stocks from the east coast of Vancouver Island, British Columbia." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 7 (1997): 1433–49. http://dx.doi.org/10.1139/f97-052.

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Juvenile tagging and escapement enumeration was conducted during 1985-1988 in nine streams within a 150-km section on the east coast of Vancouver Island. Fourteen coho salmon (Oncorhynchus kisutch) stocks of wild, hatchery, and mixed origin were monitored for ocean survival and exploitation patterns. Estimates of smolt-to-adult survival ranged from 0.5 to 23.1%. Survival rates were highly variable across years and stocks. No stock or stock type had consistently higher survival, but one hatchery stock exhibited consistently lower survival. Average exploitation rates were about 80% each year, an

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Todd, C. D., A. M. Walker, M. G. Ritchie, J. A. Graves, and A. F. Walker. "Population genetic differentiation of sea lice (Lepeophtheirus salmonis) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 7 (2004): 1176–90. http://dx.doi.org/10.1139/f04-069.

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The copepod Lepeophtheirus salmonis is ectoparasitic on Atlantic and Pacific wild salmonids. It is a major pest to Atlantic salmon (Salmo salar) aquaculture and may be implicated in recent declines of certain European wild salmonid stocks. Variation at six microsatellite loci was assessed among L. salmonis from wild and farmed salmonids in Scotland, wild sea-run brown trout (Salmo trutta) in Norway, and farmed Atlantic salmon in eastern Canada. An outgroup North Pacific sample was obtained from farmed Atlantic salmon in British Columbia. No significant differentiation was found between L. salm

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Conner, G. W., and G. B. Saul. "Acquisition of incompatibility by inbred wild-type stocks of Mormoniella." Journal of Heredity 77, no. 3 (1986): 211–13. http://dx.doi.org/10.1093/oxfordjournals.jhered.a110219.

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26

Tisdell, Clem. "Aquaculture's potential impacts on conservation of wild stocks and biodiversity." Aquaculture Economics & Management 7, no. 1-2 (2003): 155–65. http://dx.doi.org/10.1080/13657300309380337.

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27

Harper, James M. "Wild-derived mouse stocks: an underappreciated tool for aging research." AGE 30, no. 2-3 (2008): 135–45. http://dx.doi.org/10.1007/s11357-008-9057-0.

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28

Monteiro, Wuelton Marcelo, Laylah Kelre Costa Magalhães, Josué Costa Oliveira, et al. "Biological behavior of Trypanosoma cruzi stocks obtained from the state of Amazonas, Western Brazilian Amazon, in mice." Revista da Sociedade Brasileira de Medicina Tropical 45, no. 2 (2012): 209–14. http://dx.doi.org/10.1590/s0037-86822012000200014.

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INTRODUCTION: The biological diversity of circulating Trypanosoma cruzi stocks in the Amazon region most likely plays an important role in the peculiar clinic-epidemiological features of Chagas disease in this area. METHODS: Seven stocks of T. cruzi were recently isolated in the State of Amazonas, Brazil, from humans, wild mammals, and triatomines. They belonged to the TcI and Z3 genotypes and were biologically characterized in Swiss mice. Parasitological and histopathological parameters were determined. RESULTS: Four stocks did not promote patent parasitemia in mice. Three stocks produced low

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29

Ely, Regis Augusto. "Previsibilidade de Retornos e Eficiência no Mercado Acionário Brasileiro." Brazilian Review of Finance 9, no. 4 (2011): 571. http://dx.doi.org/10.12660/rbfin.v9n4.2011.3044.

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This paper searches for evidence of predictability in the Brazilian stock market using portfolios grouped by sector and firm size with data from 1999 to 2008. I conduct an automatic variance ratio test using wild bootstrap. This methodology eliminates the arbitrary choice of the holding period as well as improves small sample properties. The results suggest (i) stocks from the industrial sector are highly predictable, (ii) stocks from small firms tend to be more predictable than the ones from large firms, (iii) the Brazilian stock market, measured by the Ibovespa index from 1986 to 2008, shows

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Don, Axel, Christina Hagen, Erik Grüneberg, and Cora Vos. "Simulated wild boar bioturbation increases the stability of forest soil carbon." Biogeosciences 16, no. 21 (2019): 4145–55. http://dx.doi.org/10.5194/bg-16-4145-2019.

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Abstract. Most forest soils are characterised by a steep carbon gradient from the forest floor to the mineral soil, indicating that carbon is prevented from entry into the soil. Bioturbation can facilitate the incorporation of litter-derived carbon into the mineral soil. Wild boar are effective at mixing and grubbing in the soil and wild boar populations are increasing in many parts of the world. In a 6-year field study, we investigated the effect of simulated wild boar bioturbation on the stocks and stability of soil organic carbon in two forest areas. Regular bioturbation mimicking grubbing

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Perez-Enriquez, Ricardo, Jesús A. Medina-Espinoza, Adriana Max-Aguilar, and César J. Saucedo-Barrón. "Genetic tracing of farmed shrimp (Decapoda, Penaeidae) in wild populations from a main aquaculture region in Mexico." Revista de Biología Tropical 66, no. 1 (2017): 381. http://dx.doi.org/10.15517/rbt.v66i1.27112.

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Release or escapes of aquaculture organisms may impact the genetic composition and variability of wild populations, leading to diverse issues that may compromise long-term wild stock fitness. Therefore, it is relevant to determine if farmed stocks are currently interacting with wild populations. Shrimp farming is an aquaculture activity taking place along the tropical Pacific coast of the Americas, and represents the most important culture bussiness of Northwestern Mexico. In this study, wild and farmed whiteleg shrimp Litopenaeus vannamei from the State of Sinaloa were genetically evaluated t

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32

Draycott, R. A. H. "Restoration of a sustainable wild grey partridge shoot in eastern England." Animal Biodiversity and Conservation 35, no. 2 (2012): 381–98. http://dx.doi.org/10.32800/abc.2012.35.0381.

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Eastern England has been a stronghold for grey partridges Perdix perdix, but in common with the rest of Britain, numbers declined from the 1950s onwards. Partridges within a 40 km2 study area in the county of Norfolk have been monitored in conjunction with the Game and Wildlife Conservation Trust (GWCT) since the 1950s. Since 2001 a programme of habitat creation, supplementary feeding and predation control was undertaken by the landowner, farmers and gamekeepers to restore partridges. Numbers increased from 4.7 pairs/km2 in March 2001 to 54 pairs/km2 in March 2011. These densities are comparab

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ABDUSAMADOV, Timur Akhmaevich, Aminat Kamilovna ALIEVA, Akhma Saydbegovich ABDUSAMADOV, and Ruslan Magomedovich BARKHALOV. "COMMERCIAL AND BIOLOGICAL CHARACTERISTICS OF WILD GOLDFISH IN DIFFERENT TYPES OF RESERVOIRS OF THE TEREK-CASPIAN FISHERY SUBDISTRICT." Herald of Daghestan Scientific Center of Russian Academy of Science, no. 81 (June 30, 2021): 6–11. http://dx.doi.org/10.31029/vestdnc81/1.

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The article is devoted to the study of the commercial and biological characteristics of the wild goldfish in the coastal sea waters of the Terek-Caspian fisheries subdistrict. The features of the formation of wild goldfish stocks under the influence of natural-climatic and anthropogenic factors in the long-term aspect are shown. It has been revealed that in recent years, the stocks of wild goldfish in the coastal part of the Terek-Caspian fisheries subdistrict are stable and range from 1,210 to 1,950 thousand tons having reached the maximum in 2020. Biological indicators of wild goldfish in th

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Barca, Federica, Stefano Dalle Dalle Palle, Luca Schiavon, et al. "Characterization of Captive Breeders to Preserve the Residual Genetic Diversity of Adriatic Sturgeon (Acipenser naccarii)." Diversity 14, no. 10 (2022): 829. http://dx.doi.org/10.3390/d14100829.

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Since 1996, the Adriatic sturgeon (Acipenser naccarii) has been inscribed on the IUCN Red List as “Critically Endangered and possibly extinct in the wild”. Nowadays, its survival totally depends on restocking programs conducted by releasing juveniles generated from adult breeders reared in aquaculture. Conducting accurate genetic characterizations of all individuals potentially involved in reproduction activities is therefore of primary importance to avoid inbreeding and to maximize the genetic diversity transmitted to following generations. Since all animals reared in captivity descend from a

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Bakke, Tor A., and Philip D. Harris. "Diseases and parasites in wild Atlantic salmon (Salmo salar) populations." Canadian Journal of Fisheries and Aquatic Sciences 55, S1 (1998): 247–66. http://dx.doi.org/10.1139/d98-021.

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The ecology of infectious diseases in wild and managed salmon populations is reviewed. Few pathogens have caused significant disease epidemics in the wild, and although parasites of returning adults are best documented, diseases among parr (e.g., Gyrodactylus salaris) are probably most important. The greatest diversity of parasites is known from the marine phase but few are likely to be significant pathogens, although conclusive evidence is lacking because diseased salmon cannot be tracked. The importance of stress as an immunosuppressant of fishes in degraded habitats is discussed. In additio

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Davis, Jana LD, Alicia C. Young-Williams, Anson H. Hines, and Yonathan Zohar. "Assessing the potential for stock enhancement in the case of the Chesapeake Bay blue crab (Callinectes sapidus)." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 1 (2005): 109–22. http://dx.doi.org/10.1139/f04-150.

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In certain cases of severely depleted fishery stocks, combining stock enhancement with traditional management techniques may be a useful way of returning stocks to an exploitable size. The Chesapeake Bay stock of blue crabs (Callinectes sapidus) has declined over the past decade and appears to be recruitment-limited, making it an appropriate candidate for enhancement efforts. This study serves as a first step in determining whether large-scale enhancement of blue crab stocks is feasible. Four hatchery-raised cohorts of 4000 10 000 (25 000 in total) juvenile (630 mm carapace width, 5870 day

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Aguiar, Jonas, Horacio Schneider, Fatima Gomes, et al. "Genetic variation in native and farmed populations of Tambaqui (Colossoma macropomum) in the Brazilian Amazon: regional discrepancies in farming systems." Anais da Academia Brasileira de Ciências 85, no. 4 (2013): 1439–47. http://dx.doi.org/10.1590/0001-376520130007.

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The tambaqui, Colossoma macropomum, is the most popular fish species used for aquaculture in Brazil but there is no study comparing genetic variation among native and farmed populations of this species. In the present study, we analyzed DNA sequences of the mitochondrial DNA to evaluate the genetic diversity among two wild populations, a fry-producing breeding stock, and a sample of fish farm stocks, all from the region of Santarém, in the west of the Brazilian state of Pará. Similar levels of genetic diversity were found in all the samples and surprisingly the breeding stock showed expressive

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Don, Axel. "No threat to global soil carbon stocks by wild boar grubbing." Global Change Biology 28, no. 3 (2021): 685–86. http://dx.doi.org/10.1111/gcb.15990.

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Cintra, Israel H. A., Katia C. A. Silva, and Raúl Cruz. "Assessment of wild spiny lobster stocks on the Brazilian continental shelf." Crustaceana 86, no. 3 (2013): 336–56. http://dx.doi.org/10.1163/15685403-00003173.

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40

VÄISÄLÄ, ANTERO. "Factors influencing the competitive ability of certain wild stocks of Drosophila." Hereditas 72, no. 2 (2009): 269–76. http://dx.doi.org/10.1111/j.1601-5223.1972.tb01051.x.

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Sharp, G. J. "Growth and production in wild and cultured stocks of Chondrus crispus." Hydrobiologia 151-152, no. 1 (1987): 349–54. http://dx.doi.org/10.1007/bf00046151.

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JHT, Admin. "PENDUGAAN KARBON TERSIMPAN TEGAKAN AKASIA (Acasia mangium Wild.) UMUR 10 TAHUN DI HUTAN TANAMAN INDUSTRI PT KORINTIGA HUTANI, PROVINSI KALIMANTAN TENGAH." HUTAN TROPIKA 11, no. 2 (2019): 9–16. http://dx.doi.org/10.36873/jht.v11i2.42.

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ABSTRACT Forest role as climate stabilizer may be realized due to its ability to control world climate change caused by the rising concentrations of greenhouse gases. Carbon dioxide (CO2) is one of greenhouse gas with very rapid increase in its concentration. An effort has been taken to suppress the increase in CO2 is by controlling the concentration of carbon through advancement of carbon absorption program, where organic carbon as a result of photosynthesis will be stored in the biomass of forest stands or woody trees. Acacia (Acacia mangium Wild.) is one of fast growing species and is often

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Koljonen, Marja-Liisa, Håkan Jansson, Tiit Paaver, Oleg Vasin, and Jarmo Koskiniemi. "Phylogeographic lineages and differentiation pattern of Atlantic salmon (Salmo salar) in the Baltic Sea with management implications." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 10 (1999): 1766–80. http://dx.doi.org/10.1139/f99-104.

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The genetic structure and isolation pattern of the Atlantic salmon (Salmo salar) throughout its range in the Baltic Sea were examined as a starting point for a conservation strategy for the species in this area. The allozyme variation in seven polymorphic loci was studied in 5125 salmon from 24 rivers in four countries. A clear dichotomy was observed between stock groups from southeastern (Russia, Estonia, Latvia, southern Sweden) and northwestern (northern Finland, northern Sweden) drainage regions, corresponding to the postglacial colonisation of the Baltic Sea by two phylogeographic lineage

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Díaz-Fernández, Silvia, Beatriz Arroyo, Javier Vióuela, Isabel Patióo-Pascumal, and Pere Riera. "Market value of restocking and landscape in red-legged partridge hunting: a study based on advertisements." Wildlife Research 40, no. 4 (2013): 336. http://dx.doi.org/10.1071/wr12191.

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Context In Spain, the release of farm-reared partridges to hunt is increasingly used, despite being thought to affect sustainability of wild stocks and to reduce the need of natural habitats for game. Aims To explore the market value as a possible incentive for current management, we evaluated within a segment of the red-legged partridge hunting market whether the use of farm-reared birds (as opposed to wild stock) or the naturalisation of landscapes are affecting the hunt market price. Methods We considered estates that sell individual hunting days and contacted buyers through advertisements.

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Koljonen, Marja-Liisa, Jerome J. Pella, and Michele Masuda. "Classical individual assignments versus mixture modeling to estimate stock proportions in Atlantic salmon (Salmo salar) catches from DNA microsatellite data." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 9 (2005): 2143–58. http://dx.doi.org/10.1139/f05-128.

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Mixture modeling is shown to outperform classical individual assignments for both estimating stock composition and identifying individuals' sources in a case study of an eight-locus DNA microsatellite database from 26 Atlantic salmon (Salmo salar) stocks of the Baltic Sea. Performance of the estimation methods was compared using self-assignment tests applied to each of the baseline samples and using independent repeat samples from two of the baseline stocks. The different theoretical underpinnings, hypothesis testing versus decision theory, of the methods explain their estimation capacities. I

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Baczenas, John James, Hanne Andersen, Sujatha Rashid, et al. "Propagation of SARS-CoV-2 in Calu-3 Cells to Eliminate Mutations in the Furin Cleavage Site of Spike." Viruses 13, no. 12 (2021): 2434. http://dx.doi.org/10.3390/v13122434.

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SARS-CoV-2 pathogenesis, vaccine, and therapeutic studies rely on the use of animals challenged with highly pathogenic virus stocks produced in cell cultures. Ideally, these virus stocks should be genetically and functionally similar to the original clinical isolate, retaining wild-type properties to be reliably used in animal model studies. It is well-established that SARS-CoV-2 isolates serially passaged on Vero cell lines accumulate mutations and deletions in the furin cleavage site; however, these can be eliminated when passaged on Calu-3 lung epithelial cell lines, as presented in this st

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Whitlock, R. E., T. Pakarinen, S. Palm, M. L. Koljonen, J. Östergren, and J. Dannewitz. "Trade-offs among spatio-temporal management actions for a mixed-stock fishery revealed by Bayesian decision analysis." ICES Journal of Marine Science 78, no. 10 (2021): 3625–38. http://dx.doi.org/10.1093/icesjms/fsab203.

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Abstract Management and conservation of populations that are harvested simultaneously present a unique set of challenges. Failure to account for differences in productivity and spatio-temporal abundance patterns can lead to over-exploitation of depleted populations and/or loss of potential yield from healthy ones. Mixed-stock fisheries (where a stock may comprise one or more populations of reared or wild origin) harvest multiple stocks, often in unknown proportions, and lack of tools for estimation of stock-specific harvest rates can hamper status evaluations and attainment of management goals

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Heard, William R. "Overview of salmon stock enhancement in southeast Alaska and compatibility with maintenance of hatchery and wild stocks." Environmental Biology of Fishes 94, no. 1 (2011): 273–83. http://dx.doi.org/10.1007/s10641-011-9855-6.

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Knibb, W. R., J. S. F. Barker, and J. G. Oakeshott. "The genetics of abnormal abdomen, incomplete abdomen, and bobbed in Drosophila buzzatii." Genome 32, no. 5 (1989): 754–61. http://dx.doi.org/10.1139/g89-508.

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Five stocks of Drosophila buzzatii with superficially similar abdominal disruptions including partial tergite and sternite loss were isolated by inbreeding. Three of the stocks have indistinguishable phenotypes, the inheritance of which is maternally influenced. This phenotype and its mode of inheritance bear similarities with those of Abnormal abdomen in D. melanogaster. The phenotype in the fourth stock is slightly different and is due to a single autosomal recessive gene, which we denote incomplete abdomen. In the fifth stock the trait is limited to females, and in appearance and mode of in

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Villarreal, Diana, Philippe Nirdé, Mallorie Hide, Christian Barnabé, and Michel Tibayrenc. "Differential Gene Expression in Benznidazole-Resistant Trypanosoma cruzi Parasites." Antimicrobial Agents and Chemotherapy 49, no. 7 (2005): 2701–9. http://dx.doi.org/10.1128/aac.49.7.2701-2709.2005.

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ABSTRACT We analyzed the differential gene expression among representative Trypanosoma cruzi stocks in relation to benznidazole exposures using a random differentially expressed sequences (RADES) technique. Studies were carried out with drug pressure both at the natural susceptibility level of the wild-type parasite (50% inhibitory concentration for the wild type) and at different resistance levels. The pattern of differential gene expression performed with resistant stocks was compared to the population structure of this parasite, established by random amplified polymorphic DNA analysis and m

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