The Relationship of the Juvenile Herring Stocks in Barkley Sound to the Major Adult Herring Populations in British Columbia

1959 ◽  
Vol 16 (3) ◽  
pp. 309-320 ◽  
Author(s):  
Alan S. Hourston
Keyword(s):  
Population Studies ◽  
Adult Population ◽  
Small Body ◽  
Body Cavity ◽  
Basic Unit ◽  
Barkley Sound ◽  
Adult Schools ◽  
Relationship Of ◽  
The Relationship ◽  
Immature Fish

During the summers of 1951–53, small body-cavity tags were inserted in 55,547 juvenile (1-year) herring on the lower west coast of Vancouver Island. Fifty of these tags were recoved from the catches of adult fish between 1953–54 and 1956–57. These recoveries indicated homing by sub-district (the region occupied by an adult population) to be 52% after two years at large, and 64% after three years. Comparable data for herring tagged as adults showed 82% and 81% homing respectively. The greater tendency for the immature fish to mix with other adult populations may result from the fact that these fish join adult schools when the latter are considerably dispersed and intermixed on the offshore feeding grounds. Thus, population studies linking the juvenile and adult stages may require the use of a larger basic unit of area than that encompassing the distribution of the adult population. The dimensions of this unit will depend on the local potential for intermixing of adult populations at the time of recruitment.

Outcome from head injury related to patient' age

1988 ◽  
Vol 68 (3) ◽  
pp. 409-416 ◽  
Author(s):  
Thomas G. Luerssen ◽  
Melville R. Klauber ◽  
Lawrence F. Marshall
Keyword(s):  
Mortality Rate ◽  
Pediatric Population ◽  
Adult Population ◽  
Content Type ◽  
Head Injured ◽  
Injured Patients ◽  
Age Range ◽  
Relationship Of ◽  
The Relationship ◽  
Pupillary Reactivity

✓ A series of 8814 head-injured patients admitted to 41 hospitals in three separate metropolitan areas were prospectively studied. Of these, 1906 patients (21.6%) were 14 years of age or less. This “pediatric population” was compared to the remaining “adult population” for mechanism of injury, admission Glasgow Coma Scale score, motor score, blood pressure, pupillary reactivity, the presence of associated injuries, and the presence of subdural or epidural hematoma. The relationship of each of these factors was then correlated with posttraumatic mortality. Except for patients found to have subdural hematoma and those who were profoundly hypotensive, the pediatric patients exhibited a significantly lower mortality rate compared to the adults, thus confirming this generally held view. This study indicates that age itself, even within the pediatric age range, is a major independent factor affecting the mortality rate in head-injured patients.

Variations in the activity of the thyroid gland of the cod, Gadus callarias L., in relation to its migrations in the Barents Sea II. The ‘dummy of run’ of the immature fish

1959 ◽  
Vol 38 (2) ◽  
pp. 417-422 ◽  
Author(s):  
A. D. Woodhead
Keyword(s):  
Thyroid Gland ◽  
Barents Sea ◽  
Spawning Ground ◽  
Sea Trout ◽  
The Barents Sea ◽  
Thyroid Glands ◽  
Seasonal Migrations ◽  
Relationship Of ◽  
The Relationship ◽  
Immature Fish

Describing the migrations and movements of the cod, Gadus callarias L., in the Barents Sea, Trout (1957) suggested that the immature fish carry out a false spawning migration. ‘The pattern of migration of the immatures is basically similar to that of the matures…with increasing age, the immatures’ southerly winter migration approached in length that of the mature cod, as if, in the years immediately prior to maturity they were making a “dummy run” towards the spawning ground.' The seasonal migrations of both the adult and immature cod have been related to changes in the activity of the thyroid gland in this fish (Woodhead, 1959). During the spring of 1956 and 1957, collections of thyroid glands from immature cod were made at stations from Bear Island to the Norwegian coast. It was hoped that a study of these glands might demonstrate further the relationship of the activity of the thyroid gland to the migration of the fish.

scholarly journals Risks of oncologic pathology in parasitosis at the present time

2020 ◽  
Vol 92 (11) ◽  
pp. 82-85
Author(s):  
Kh. G. Omarova ◽  
N. I. Aleshina ◽  
Zh. B. Ponezhevа ◽  
A. V. Gorelov ◽  
V. V. Maleev ◽  
...  
Keyword(s):  
Population Studies ◽  
Current Knowledge ◽  
Parasitic Infections ◽  
Parasitic Diseases ◽  
Relationship Of ◽  
The Relationship

An analysis of published literature data on the relationship of parasitic diseases and oncogenesis is carried out. Current knowledge about the association of parasitic infections and cancer formation has revealed several carcinogenic mechanisms, but the severity of the relationship between parasites and cancer formation (except for schistosome, opisthorchis and clonorchis) should be confirmed in future experimental and population studies.

scholarly journals RELATIONSHIP OF ALCOHOL AND TOBACCO WITH AVN OF FEMORAL HEAD IN ADULT INDIAN POPULATION

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Himanshu Suman ◽  
Yash Sharma ◽  
Puneet Kumar Acharya ◽  
Jyoti Krishna ◽  
Nilesh Kumar Patidar
Keyword(s):  
Femoral Head ◽  
Adult Population ◽  
Age Groups ◽  
Tobacco Consumption ◽  
Cellular Toxicity ◽  
Keywords Alcohol ◽  
Working Age ◽  
History Of ◽  
Relationship Of ◽  
The Relationship

Background: Avascular necrosis (AVN) or osteonecrosis is the death of bone tissues due to decreased blood flow of femoral head, it is a major orthopaedic disease with many risk factors including the chronic alcohol and tobacco consumption.  Aims and objectives: To study the relationship of alcohol and tobacco with AVN of femoral head in adult population. Materials and Methods: This study included 72 patients of AVN of femoral head (ONFH) who attending our hospital between Sept 2018 to Sept 2020. History of alcoholism and tobacco consumption, detailed information of the amount and duration of smoking and alcohol intake was recorded. Results: Majority of the AVN patients were working age groups males (72%) and 28% were females. Out of 72 patient 55% had history of alcohol consumption and 60% were smokers which indicates a positive correlation of cellular toxicity with AVN of femoral head. Conclusion: Present study conclude that the alcohol ingestion and tobacco smoking are the major cause of cellular toxicity and AVN of femoral heads. Keywords: alcohol drinking, femur head necrosis, smoking

Soil aggregate size affects C sequestration and microorganisms inside aggregate under straw addition

2020 ◽  
Author(s):  
Jinjing Lu ◽  
Sheng ping Li ◽  
Xueping Wu ◽  
Aurore Degre
Keyword(s):  
Large Scale ◽  
Soil Aggregates ◽  
Aggregate Size ◽  
C Sequestration ◽  
Soil Aggregate ◽  
Basic Unit ◽  
Size Fractions ◽  
Soil Microbial ◽  
Relationship Of ◽  
The Relationship

<p>As the basic unit of soil, aggregates are considered as a stable soil organic ( SOC ) pool. Changes in organic subtract due to straw addition induce variations in soil microbial community or activity, which may effect the C sequestration in aggregates. Most of the previous studies on soil microorganisms assessment was done at large scale i.e. larger quantities of soil, however, few studies on SOC is known in aggregate size fractions. This study investigated the effects of soil aggregate size on the distribution of microorganism and SOC, and the relationship of microorganism and C sequestration inside aggregate size fractions with <sup>13</sup>C-labelled straw addition. Soil samples were collected from 0-15 cm and classified into 5 aggregates sizes classes ( ＞5 mm, 2-5 mm, 1-2 mm, 0.25-1 mm and ＜0.25 mm ), and the graded aggregates were incubated for 180 days at 20 °C, with or without <sup>13</sup>C-labelled straw residue. The incorporation of <sup>13</sup>C into the five aggregate size fractions was analyzed.</p><p>After incubation, the SOC, DOC and ROC contents were increased more rapidly and significantly in aggregate ( ＞5 mm ) than that in aggregate ( ＜5 mm ) under straw addition, with the same trend of new carbon derived from straw. The total PLFAs was increased most significantly in aggregate ( ＞5 mm ), especially fungi and negative bacteria ( G- ), while the positive bacteria ( G+ ) increased slightly in aggregate ( ＜0.25 mm ), with no significant change in total PLFAs. The proportion of bacteria in total microorganism increased gradually, as the aggregate size increased in straw treatment. The results imply that aggregate ( ＞5 mm ) have more space for C sequestration and greater contribution to new carbon turnovering in soil than other small aggregates, and it gradually tended to be bacterial with the enrichment of carbon. In addition, the SOC contents were strongly related to the amount of fungi and G- in aggregate ( ＜5 mm ), while related to G+ in aggregate ( ＜0.25 mm ) under straw addition.</p>

Relationship between Serum, Red Cell, Urinary and Dietary Magnesium in a Middle-Aged French Adult Population

2004 ◽  
Vol 74 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Czernichow ◽  
Zarebska ◽  
Preziosi ◽  
Duport ◽  
Arnaud ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Alcohol Intake ◽  
Population Studies ◽  
Adult Population ◽  
The Body ◽  
Red Cell ◽  
General Population Studies ◽  
Dietary Magnesium ◽  
Few Data ◽  
The Relationship

Magnesium (Mg) is the second most common intracellular electrolyte in the body. Few data are available in general population studies on the assessment of Mg status and its relationship to dietary intake. We explored the relationship between several biological Mg surrogates (serum, red cell, and urinary), Mg intake, age, alcohol intake, and mean energy intake in a large sample of French adults issued from the SUVIMAX study. Serum Mg was positively correlated with red cell Mg in men and women (r = 0.17; p < 0.001) whereas no association was found between urinary Mg and red cell Mg nor between urinary Mg and serum Mg. Age was positively correlated with serum and red cell Mg in women (p < 0.001) and negatively correlated with urinary Mg in both genders (p < 0.001). Finally, a negative correlation was found between dietary intake and red cell Mg in women (r = –0.06; p < 0.05). Among the biological Mg surrogates, an association was found between serum Mg and red cell Mg. Further investigations should be conducted in order to determine the role played by dietary Mg intake in the relationship between health status and several biological Mg measurements.

scholarly journals Lost lovers linked at long last: elusive female Nanophyllium mystery solved after a century of being placed in a different genus (Phasmatodea, Phylliidae)

ZooKeys ◽  
2020 ◽  
Vol 969 ◽  
pp. 43-84 ◽  
Author(s):  
Royce T. Cumming ◽  
Stephane Le Tirant ◽  
Sierra N. Teemsma ◽  
Frank H. Hennemann ◽  
Luc Willemse ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Papua New Guinea ◽  
Small Body ◽  
Species Group ◽  
Laboratory Rearing ◽  
Males And Females ◽  
The Many ◽  
Relationship Of ◽  
The Relationship ◽  
Captive Rearing

After successful laboratory rearing of both males and females from a single clutch of eggs, the genus Nanophyllium Redtenbacher, 1906 (described only from males) and the frondosum species group within Phyllium (Pulchriphyllium) Griffini, 1898 (described only from females) are found to be the opposite sexes of the same genus. This rearing observation finally elucidates the relationship of these two small body sized leaf insect groups which, for more than a century, have never been linked before. This paper synonymizes the frondosum species group with Nanophyllium Redtenbacher, 1906 in order to create a singular and clearly defined taxonomic group. Five species are transferred from the Phyllium (Pulchriphyllium) frondosum species group and create the following new combinations: Nanophyllium asekiense (Größer, 2002), comb. nov.; Nanophyllium chitoniscoides (Größer, 1992), comb. nov.; Nanophyllium frondosum (Redtenbacher, 1906), comb. nov.; Nanophyllium keyicum (Karny, 1914), comb. nov.; Nanophyllium suzukii (Größer, 2008), comb. nov. The only taxon from this species group not transferred from the frondosum species group to Nanophyllium is Phyllium (Pulchriphyllium) groesseri Zompro, 1998. Based on protibial exterior lobes, this species belongs in the schultzei species group as described in Hennemann et al. 2009 and is therefore excluded from further discussion here. The rearing of Nanophyllium also yielded the male Nanophyllium asekiense (Größer, 2002), comb. nov. thus, enabling comparison of this male to the other previously known Nanophyllium species. Two new species of nano-leaf insects are described within, Nanophyllium miyashitaisp. nov., from Morobe Province, Papua New Guinea, and Nanophyllium daphnesp. nov., from Biak Island, Papua Province, Indonesia. With such distinct sexual dimorphism in Nanophyllium between sexes, which have only now been matched up via captive rearing, illustrated within are numerous specimens which might represent the unknown opposite sexes of the many currently known species of Nanophyllium. Due to pronounced sexual dimorphism in Nanophyllium, only future captive rearing or molecular analysis will match up the many unknown sexes. To conclude, with the description of two new Nanophyllium species, dichotomous keys to species for known males and females are presented.

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