The Status of the School Shark Fishery in South-Eastern Australian Waters

1959 ◽  
Vol 10 (2) ◽  
pp. 150 ◽  
Author(s):  
AM Olsen
Keyword(s):  
Maximum Yield ◽  
Reproductive Potential ◽  
South Australia ◽  
Slow Growth Rate ◽  
South Eastern ◽  
Pregnant Females ◽  
The Status ◽  
History Of ◽  
Annual Total ◽  
The Mean

The maximum yield of the school shark fishery in south-eastern Australian waters was 4.09 million lb in 1949. The catch has fluctuated since then about a declining trend to 3.18 million lb in 1956. In 1944, 7.3 hooks were required to catch a shark of mean weight 14.7 lb. In 1956 the number of hooks required was almost doubled: 13.6 hooks were needed to catch sharks of mean weight 13.7 lb; the catch per hook dropped from 2.01 to 0.99 lb. Whereas the catch per boat-month remained relatively stable at 4765 lb for 1944 and 4643 for 1956, the number of hooks used per boat-month increased from 2366 to 4668 hooks in 12 years. Throughout this period the mean weight of sharks in eastern Bass Strait remained fairly steady (11-13 lb) whereas there was a drop of 3 lb from a mean weight of 17-20 lb in the predominantly mature portion of the stock in western Bass Strait. Fishermen in South Australia have reported a comparable drop in the mean weight of sharks in their catches. During the period 1941-46 there was unrestricted inshore fishing of juveniles and pregnant females with a consequent severe drop in the inshore population. The subsequent decline in the annual total catch is believed to be due not only to a too intensive offshore fishery but also to the resultant reduced recruitment and depressed reproductive potential caused by the earlier destruction of juveniles and pregnant females. In the data presented in this paper there is evidence that the school shark fishery, which is operating on a single stock of sharks with a slow growth rate, a late sexual maturity, and a low fecundity, shows trends which are suggestive of depletion. Because similar trends in the soupfin shark fishery of California and in the dogfish fishery of British Columbia were followed by depletion, it has been inferred that regulations to protect the vulnerable phases of the life history of the school shark of Australia may be required. Measures for conservation are discussed.

P1943Ambient temperature and seasonal effects on blood pressure in 2.6 million Australians

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
E Atkins ◽  
Q Pilard ◽  
K Rogers ◽  
A Salam ◽  
A Rodgers
Keyword(s):  
Blood Pressure ◽  
Seasonal Variation ◽  
Ambient Temperature ◽  
Medication Use ◽  
South Australia ◽  
Seasonal Effects ◽  
Lipid Lowering ◽  
Maximum Temperature ◽  
History Of ◽  
The Mean

Abstract Background There is evidence that blood pressure (BP) levels vary considerably from season to season, due principally to variation in ambient temperature. This gives the potential for both under- and over-treatment if BP lowering medications are not varied seasonally, but is not acknowledged in clinical guidelines. We will describe the seasonal variation in BP and assess the association between systolic blood pressure (SBP) and outdoor maximum ambient temperature in Australia. Methods The primary care data is an extract from MedicineInsight, a national general practice data program developed and managed by NPS MedicineWise, which extracts deidentified data from almost 10% of all Australian general practices. We included patients aged 30–90 years with at least one BP measure recorded from 1 Jan 2010 to 1 Aug 2017. Australian Bureau of Meteorology daily max temperature is linked by matching observation dates and location to nearest weather station. Decomposition of the mean will determine seasonal variation. Multiple linear regression was used to estimate the associations between max temperature and SBP with adjustment for age, sex, socioeconomic index, current smoking, comorbidities, BP lowering medication use, lipid lowering medication use and year of BP measurement. Results The study population includes 2.6 million people, mean age 55 years (standard deviation [SD] 16.3). Fifty-five percent are female, over a third of the cohort reside in New South Wales, and 62.4% reside in major Australian cities. The mean (SD) temperature was 23°C (6.6). There was a mean (SD) of 7 (11.4) BP measurements per person over the study period, median 3 measures (interquartile range 1–8). A quarter had a history of hypertension, 8% had a history of cardiovascular disease, and 8% had a history of diabetes. Twenty-six percent had at least one prescription for BP lowering therapy. The average monthly SBP for the cohort demonstrated strong seasonal variation with higher values in winter. The population mean varies by 3mmHg SBP between seasons across Australia, ranging from 1.7mmHg in the Northern Territory to 3.5mmHg in South Australia (range of mean maximum temperature 3°C [30–33] and 14°C [15–29] for the capital cities respectively). Each 10°C increase in max outdoor temperature was associated with a 1.8mmHg [95% CI 1.80–1.83] lower mean SBP. The proportion of people with SBP>140mmHg varied by season, irrespective of age, sex and use of BP lowering treatment. For example, among those treated control rates varied between 70 and 81%, and among those not treated between 78 and 85% (Figure). Blood pressure seasonality in Australia Conclusions BP control rates vary considerably by season. These findings have implications for the reliable diagnosis of hypertension, and suggest seasonal adjustments in treatment should be considered for some patients. The clinical and public health relevance of this phenomenon is expected to increase with increasing climate variability. Acknowledgement/Funding National Health and Medical Research Council Australia, National Heart Foundation Australia

Observations on the ecology of the Australian field cricket, Gryllulus commodus Walker, in the field.

1954 ◽  
Vol 2 (2) ◽  
pp. 205 ◽  
Author(s):  
TO Browning
Keyword(s):  
South Australia ◽  
Agricultural Practices ◽  
Field Cricket ◽  
Survey Method ◽  
Differential Survival ◽  
South Eastern ◽  
Permanent Pasture ◽  
Black Clay ◽  
Dry Conditions ◽  
History Of

Gryllulus commodus has one generation each year, the active stages being present in summer and autumn and the eggs in winter and spring. Crickets are found in abundance only in areas where the soil is heavy black clay. This affords shelter from desiccation to the eggs, which lose water very rapidly if exposed to dry conditions. Also in these areas there may be an abundance of food for the nymphs and adults, in the form of sown permanent pasture. Where either shelter for the eggs or food for the active stages is lacking the numbers of crickets tend to be lower. Certain aspects of the behaviour and physiology of G. commodus which are important in relation to the survival and multiplication of the species are discussed. The relative chanses in the abundance of crickets in the south-eastern districts of South Australia were determined by a survey method during the period 1949-52. Evidence is presented that differences In the abundance of crickets from year to year are mainly attributable to differences in the amount and distribution of rainfall during the winter and spring, which result in differential survival of the eggs. The history of cricket outbreaks in South Australia is traced and it is concluded that, if present trends in agricultural practices continue, future outbreaks will tend to be more severe and more widespread, although probably not more frequent.

scholarly journals Yield Trends in The Wheat Belt of South Australia During 1896-1941

1949 ◽  
Vol 2 (2) ◽  
pp. 83
Author(s):  
EA Cornish
Keyword(s):  
South Australia ◽  
Statistical Technique ◽  
Seasonal Rainfall ◽  
Partial Regression ◽  
Territorial Unit ◽  
History Of ◽  
The Mean ◽  
Yield Trends

The history of the wheat industry in South Australia is reviewed to provide a background for discussion of the fomls of trend observed in yield. The period chosen for examination was 1896-1941, and the analysis extends to practically the entire wheat belt, the basic territorial unit used for assessing yield being the hundred, the mean area of which in South Australia is approximately 118 square miles. As a preliminary to the evaluation of the trends it was necessary to estimate and to eliminate the effects of variations in seasonal rainfall; the statistical technique used was that of partial regression, and reasons are given for the choice of rainfall variates.

Past and Present Vegetation of Marshes Swamp in South-Eastern South Australia

1975 ◽  
Vol 23 (1) ◽  
pp. 123 ◽  
Author(s):  
JR Dodson ◽  
IB Wilson
Keyword(s):  
Climatic Change ◽  
Vegetation History ◽  
South Australia ◽  
Plant Succession ◽  
Radiocarbon Dates ◽  
Tea Tree ◽  
South Eastern ◽  
Form Part ◽  
History Of ◽  
Insight Into

The swamp and sclerophyll vegetation of Marshes Swamp is discussed in terms of soils and water regimes. Two swamps, Mt. Burr Swamp and Blue Tea Tree Swamp, which form part of Marshes Swamp, are looked at in particular and their stratigraphy and history are reconstructed. Cores from the swamp were pollen-analysed and the vegetation history of the swamps is described in terms of plant succession and local climatic change. Four radiocarbon dates were obtained and these were used to date the major local vegetational history events following dune build-up and vulcanism. These also allowed some insight into the age of soil development in the swamp.

Revisiting the Natural History of Chronic Scaphoid Nonunions: A Retrospective Study of 20 Cases

2021 ◽  
Author(s):  
J. Terrence Jose Jerome
Keyword(s):  
Retrospective Study ◽  
Natural History ◽  
Functional Outcome ◽  
Grip Strength ◽  
Scaphoid Nonunion ◽  
Proximal Pole ◽  
Degenerative Arthritis ◽  
Level Of Evidence ◽  
History Of ◽  
The Mean

Abstract Background The natural history of scaphoid nonunion is the development of degenerative arthritis. A lot of information is still unclear about this progression. The purpose of this study is to analyze patients with scaphoid nonunions who had not received any kind of treatment and to assess the functional outcome. Materials and Methods This is a retrospective study that analyzed the patients with chronic scaphoid nonunions between 2009 and 2019. None of the patients received any treatment. The age at the time of injury, examination, pattern of fracture, types of scaphoid nonunion, symptoms, and duration of nonunion were noted. Diagnosis was confirmed by radiographs, computed tomography (CT) scan, and magnetic resonance imaging (MRI). Scapholunate and radiolunate angles were recorded. Pain score, modified mayo wrist score, grip strength, range of movement, and the functional outcome of these scaphoid nonunions were analyzed. A statistical correlation between the scaphoid nonunion presentations and the functional outcome was assessed. Results The mean age of the patients was 62 years (range: 35–82 years.). There were 17 male and 3 female patients. There were 9 waist and 11 proximal pole scaphoid nonunions. The mean duration of scaphoid nonunion was 34 years (range: 10–62 years). None of the patients had avascular necrosis (AVN) of the proximal scaphoid. The age at examination, gender, side of injury, fracture pattern (waist/proximal pole), fracture displacement ≤ 1 mm or > 1 mm, nonunion duration, and radiographic arthritic parameters had no significant impact on the functional outcome. Conclusions Untreated chronic scaphoid nonunion leads to the development of degenerative arthritis over a period of years, which is still unpredictable. Most of the patients become aware of the nonunion following a precedent injury or other reasons. Most of the patients have fair/good functional outcome despite reduced range of movements and grip strength. Many do not favor surgical intervention in the course of nonunion. Chronic nonunions open a lot of unanswered questions. Clinical relevance There have been numerous studies on the treatment aspects of scaphoid nonunion, with little knowledge about certain people with nonunion who did not have any kind of treatment. The demographics, clinical findings, and radiological parameters do confirm the progression of these nonunion to arthritis, but most of them had fair-to-good outcome throughout their life. It opens our thinking about the real need of treatment in such nonunions and raises numerous questions about the disease. Level of evidence This is a Level IV study.

The status of Gideon Mantell's “first” Iguanodon tooth in the Museum of New Zealand Te Papa Tongarewa

1997 ◽  
Vol 24 (3) ◽  
pp. 397-421 ◽  
Author(s):  
JOHN C. YALDWYN ◽  
GARRY J. TEE ◽  
ALAN P. MASON
Keyword(s):  
New Zealand ◽  
Charles Lyell ◽  
The Status ◽  
History Of ◽  
Gideon Mantell

A worn Iguanodon tooth from Cuckfield, Sussex, illustrated by Mantell in 1827, 1839, 1848 and 1851, was labelled by Mantell as the first tooth sent to Baron Cuvier in 1823 and acknowledged as such by Sir Charles Lyell. The labelled tooth was taken to New Zealand by Gideon's son Walter in 1859. It was deposited in a forerunner of the Museum of New Zealand, Wellington in 1865 and is still in the Museum, mounted on a card bearing annotations by both Gideon Mantell and Lyell. The history of the Gideon and Walter Mantell collection in the Museum of New Zealand is outlined, and the Iguanodon tooth and its labels are described and illustrated. This is the very tooth which Baron Cuvier first identified as a rhinoceros incisor on the evening of 28 June 1823.

The European Charter of Local Self-Government

2015 ◽  
Author(s):  
Chris Himsworth
Keyword(s):  
Critical Study ◽  
The European Union ◽  
Future Prospects ◽  
Council Of Europe ◽  
International Treaty ◽  
Additional Protocol ◽  
Domestic Courts ◽  
The Status ◽  
History Of ◽  
Regional Authorities

The first critical study of the 1985 international treaty that guarantees the status of local self-government (local autonomy). Chris Himsworth analyses the text of the 1985 European Charter of Local Self-Government and its Additional Protocol; traces the Charter’s historical emergence; and explains how it has been applied and interpreted, especially in a process of monitoring/treaty enforcement by the Congress of Local and Regional Authorities but also in domestic courts, throughout Europe. Locating the Charter’s own history within the broader recent history of the Council of Europe and the European Union, the book closes with an assessment of the Charter’s future prospects.

A Universe of Societies

2018 ◽  
Author(s):  
Didier Debaise
Keyword(s):  
Spatial Relations ◽  
The Third ◽  
The Status ◽  
History Of ◽  
Temporal And Spatial

Which kind of relation exists between a stone, a cloud, a dog, and a human? Is nature made of distinct domains and layers or does it form a vast unity from which all beings emerge? Refusing at once a reductionist, physicalist approach as well as a vitalistic one, Whitehead affirms that « everything is a society » This chapter consequently questions the status of different domains which together compose nature by employing the concept of society. The first part traces the history of this notion notably with reference to the two thinkers fundamental to Whitehead: Leibniz and Locke; the second part defines the temporal and spatial relations of societies; and the third explores the differences between physical, biological, and psychical forms of existence as well as their respective ways of relating to environments. The chapter thus tackles the status of nature and its domains.

Sonographic Assessment of Amniotic Fluid Volume using Single Deepest Pocket (SDP) among Igbo Women with Uncomplicated Singleton Pregnancies.

2019 ◽  
Vol 2 (1) ◽  
pp. 1-18
Author(s):  
Chijioke Okeudo ◽  
B.U. Ezem
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Cross Sectional Study ◽  
Fluid Volume ◽  
Singleton Pregnancy ◽  
Cross Sectional ◽  
South Eastern ◽  
Amniotic Fluid Volume ◽  
The Mean ◽  
Singleton Pregnancies

Background: The amniotic fluid is fundamental for proper fetal development and growth. Ultrasound visualization of the amniotic fluid permits both subjective and objective estimates of the amniotic fluid. Objective: The objective of this study was to determine the reference values of normal single deepest pocket (SDP) – upper and lower limits, mean SDP and variation of the SDP with gestational age among Igbo women of South-Eastern Nigeria extraction carrying uncomplicated singleton pregnancy. Methodology: This was a prospective cross sectional study involving 400 women carrying uncomplicated singleton pregnancies and who were sure of the date of the first day of their last menstrual period. The single deepest pocket / maximum vertical pool were determined once at presentation at the hospital.. The study was conducted from January 1st to December 31st 2015. The second author carried out all the scanning. The SDP was obtained. Results: The womens’ mean and median ages were the same at 28 years. The gestational age range of the pregnancies was 14-41 weeks. The mean SDP was 5.8cm, while the 5th and 95th percentiles were 3.3cm and 8.5cm respectively. There was no difference in the mean SDP in both term and preterm. There was irregular but continuous rise of mean SDP to a peak of 6.8cm at gestational age of 39 weeks. In conclusion, the participants had a mean SDP of 5.8cm. There was also a positive correlation between SDP and Gestational age. We therefore recommend a longitudinal study to assess perinatal outcome and abnormal amniotic fluid volume among Igbo women of South-Eastern Nigeria. Key words: Single Deepest Pocket, Uncomplicated Singleton Pregnancy, Igbo Women.

Somewhere between Human, Nonhuman, and Woman

2020 ◽  
Vol 6 (3) ◽  
pp. 21-51
Author(s):  
Debashree Mukherjee
Keyword(s):  
Object Relations ◽  
Human Body ◽  
Film Industry ◽  
The South ◽  
Hunger Strike ◽  
Cultural Events ◽  
Production Experience ◽  
Human Object ◽  
The Status ◽  
History Of

In 1939, at the height of her stardom, the actress Shanta Apte went on a spectacular hunger strike in protest against her employers at Prabhat Studios in Poona, India. The following year, Apte wrote a harsh polemic against the extractive nature of the film industry. In Jaau Mi Cinemaat? (Should I Join the Movies?, 1940), she highlighted the durational depletion of the human body that is specific to acting work. This article interrogates these two unprecedented cultural events—a strike and a book—opening them up toward a history of embodiment as production experience. It embeds Apte's emphasis on exhaustion within contemporaneous debates on female stardom, industrial fatigue, and the status of cinema as work. Reading Apte's remarkable activism as theory from the South helps us rethink the meanings of embodiment, labor, materiality, inequality, resistance, and human-object relations in cinema.

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