Spatial and temporal distribution of early-stage phyllosoma of westren rock lobster, Panulirus cygnus

1980 ◽  
Vol 31 (4) ◽  
pp. 485 ◽  
Author(s):  
DW Rimmer
Keyword(s):  
Early Stage ◽  
Temporal Distribution ◽  
Lunar Cycle ◽  
Stage I ◽  
Western Coast ◽  
Spatial And Temporal Distribution ◽  
Rock Lobster ◽  
Larval Release ◽  
Panulirus Cygnus ◽  
The Impact

Time-series sampling for early-stage phyllosoma of P. cygnus was carried out off the western coast of Australia near the centre of the population of breeding adults. Hatching occurred from November through February in 1973-74 and 1974-75. Spatial distribution of the larvae was similar between the two seasons studied. The density of newly hatched (stage I) phyllosoma was greatest along the off-shore portion of the continental shelf. The majority of larvae moved off shore soon after hatching and the relative abundance of stages 11 and 111 increased with distance off shore. An off-shore extension of the sampling yielded an estimated minimum net rate of off-shore transport of 5.25 km,day for the stage I phyllosoma taken at the station farthest off shore. In 1973-74. larval release increased gradually from a low level in November to a peak in mid January. In 1974-75 larval release commenced at least a month earlier and peaked in late November, tapered off through December, and peaked again in mid January. Water temperature correlated with temporal differences in larval release. Warmer temperatures early in the 1974-75 season apparently induced the onset of breeding early enough to permit a second breeding by some females. There appeared to be no periodicity of hatching related to the lunar cycle. The distribution of early-stage phyllosoma was patchy and the impact of patchiness on quantitative sampling is discussed.

Stage at cancer diagnosis during the COVID-19 pandemic in western Washington state.

2021 ◽  
Vol 39 (28_suppl) ◽  
pp. 145-145
Author(s):  
Catherine R. Fedorenko ◽  
Karma L. Kreizenbeck ◽  
Li Li ◽  
Laura Elizabeth Panattoni ◽  
Veena Shankaran ◽  
...  
Keyword(s):  
Medical Care ◽  
Early Stage ◽  
Stage Iv ◽  
Washington State ◽  
Stage I ◽  
Tumor Type ◽  
Stage At Diagnosis ◽  
Stage Iv Cancer ◽  
Using Data ◽  
The Impact

145 Background: The COVID-19 pandemic disrupted medical care, including routine cancer screening for breast, colorectal, lung and cervical cancers. We aimed to investigate the impact of the pandemic on stage at diagnosis for cancer patients. Methods: Using data from the Washington State SEER records we compared AJCC stage for patients diagnosed with cancer in 2017-2019 to 2020 for two time periods, March to June (initial pandemic months) and July to December (later pandemic months). Patients were included if they were age 18+, diagnosed with a solid tumor, and not diagnosed at autopsy. Results: In the early phase of the pandemic, March – June 2020, there was a shift to cancers being diagnosed at a later stage compared to the same time period in 2017-2019 (Stage III: 13.5% to 14.9%, Stage IV: 16.2% to 19.7%). There was also a decrease in cancer diagnoses for cancers that are often detected through routine screening. As a percentage of all cancer diagnoses, both melanoma (13.2% to 9.8%) and colon cancer diagnoses (7.2% to. 6.7%) decreased during the early pandemic. In the later phase of the pandemic, July to December 2020, the stage at diagnosis showed an indication of returning to pre-pandemic levels with an increase in the proportion of early stage cancers (In situ: 16.6% to 19.3%, Stage I: 38.8% to 41.1%). Stage at diagnosis trends varied by tumor type. For colorectal cancer, the overall number of diagnoses decreased during the initial pandemic months. Stage I diagnoses decreased and Stage IV cancer diagnoses increased in both early and late stages of the pandemic. Conclusions: In Washington State, the COVID-19 pandemic had an impact on stage at diagnosis potentially caused by delays or interruptions in medical care. Additional studies are needed to understand how this shift in stage at diagnosis impacted treatment and outcomes for patients.

scholarly journals A study on the characteristics and influencing factors of reservoir sedimentation in Wanjiazhai Reservoir

2018 ◽  
Vol 246 ◽  
pp. 01046
Author(s):  
Zhihui Ren ◽  
Ting Wang ◽  
Yuanjian Wang ◽  
Shaojun Qu
Keyword(s):  
Water Level ◽  
Reservoir Operation ◽  
Temporal Distribution ◽  
Measured Data ◽  
Sediment Deposition ◽  
Reservoir Sedimentation ◽  
Spatial And Temporal Distribution ◽  
Timely Manner ◽  
Reservoir Area ◽  
The Impact

Based on measured data of the Wanjiazhai Reservoir in different periods, the characteristics of the spatial and temporal distribution of sedimentation in the reservoir area were preliminarily analyzed and the impact of reservoir operation on this distribution was discussed. Primary conclusions are as followed: in terms of temporal distribution, sedimentation continuously accumulated over the period from 2000 to 2017, with the sediment deposition ratio dramatically decreasing between 2011 and 2017; in terms of spatial distribution, the sedimentation in the reservoir area was mainly concentrated downstream of the WD54 section, with the highest concentration being downstream of the WD23 section. The characteristics of sedimentation distribution in the reservoir area were closely related to inflow and sediment conditions and reservoir operation water level. When the water level was lower than 952 m, the sediment deposition ratio was lower than 0. To further improve the sediment deposition form in the reservoir area, lowering water level and ejecting the sediment are recommended in a timely manner.

An assessment of the impact of geographic variation on resection rates and survival for early-stage pancreatic adenocarcinoma.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e15052-e15052
Author(s):  
Bradley D. McDowell ◽  
Brian J. Smith ◽  
Anna M Button ◽  
James R. Howe ◽  
Elizabeth A. Chrischilles ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Overall Survival ◽  
Pancreatic Adenocarcinoma ◽  
Early Stage ◽  
Stage I ◽  
Stage Ii ◽  
Survival Times ◽  
Resection Rate ◽  
Selection Factors ◽  
The Impact

e15052 Background: Pancreatic resection is the only known curative option for pancreatic adenocarcinoma. Resection has been previously reported to be underutilized in patients with early stage disease. To develop a better understanding of this issue and control for treatment selection factors, we examined the relationship between geographic area resection rates and survival in patients with stage I/II pancreatic cancer. Methods: We queried Surveillance, Epidemiology, and End Results (SEER) data for patients with stage I/II cancer of the pancreatic head diagnosed from 2004-2009. We excluded patients with less than 3mo survival. Resection rates were calculated within Health Service Areas (HSAs) across all 18 SEER regions. Resection rate was defined as the number of patients who had an operation divided by the total number diagnosed with early stage pancreatic cancer. Multivariate Cox regression was used to estimate the overall survival effect of HSA rates while controlling for age, gender, marital status, poverty level, education, and AJCC stage. Results: 8,323 patients with stage I (n=1,454) and stage II (n=6,869) disease were analyzed. Pancreatectomy was performed in 476 patients (32.7%) with stage I disease and 3,846 (56.0%) with stage II disease. HSA resection rates were arranged into five groups (quintiles) which ranged from 42.7 to 65.7% (Table). Across the quintiles, median overall survival increased from 11 to 14 months, suggesting a positive association with resection rate. Multivariate analysis revealed that for every 10.00% increase in resection rate, the risk of overall death decreased by 5.26% (p<0.001). Conclusions: Patients with early stage pancreatic cancer who live in areas with higher resection rates have longer average survival times. Because geography should not influence treatment response, we conclude that efforts to raise resection rates should increase survival times in patients for whom there is uncertainty about the risk/benefits of resection. [Table: see text]

Patterns of systemic treatment utilization in ER+/PgR+/HER2+, early-stage breast cancer (BC): An analysis of the National Cancer Database.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 547-547
Author(s):  
Zeina A. Nahleh ◽  
Brian Hobbs ◽  
Elizabeth Elimimian ◽  
Wei (Auston) Wei ◽  
Annie Gupta ◽  
...  
Keyword(s):  
African Americans ◽  
Endocrine Therapy ◽  
Early Stage ◽  
Adjuvant Endocrine Therapy ◽  
Stage I ◽  
Treatment Utilization ◽  
National Cancer Database ◽  
Node Negative ◽  
Risk Of Death ◽  
The Impact

547 Background: The preferences and trends of treatment utilization of adjuvant endocrine therapy (ET) versus chemotherapy (CH) for small node-negative triple positive (TP) BC are unclear. We sought to determine these preferences and assess the impact on outcome. Methods: This is a retrospective study from the National Cancer Database including patients with TP stage I BC, 2004-2015. Treatment selection was evaluated for association with patient clinical and demographic characteristics using logistic regression. Overall survival (OS) was estimated using the Kaplan-Meier method and compared among patient and treatment cohorts by log-rank test and Cox regression. Results: Of 37,777 patients analyzed, 79% were White (Non-Hispanics), 10% African Americans, and 5% Hispanic/Latinos. 57% were 50-70 years old. 86% received adjuvant endocrine therapy versus 14% CH first. Around 40 % of all patients received anti-Her2 therapy. Patients younger than 70 years, with male BC, diagnosed with poorly differentiated BC, African Americans and Hispanics were more likely to be treated with chemotherapy. OS rate at 5-year was 92.3% (95% CI: 0.918-0.928). In multivariate analysis for patients with survival data, an increased rate of death was associated with: treatment in community versus academic/research centers, CH first versus ET, no treatment with anti-Her2 therapy, government versus private /no insurance, Native American ethnicity. A slight but statistically significant reduction in the in the risk of death at 5 years was evident for patients receiving anti-Her2 therapy plus ET therapy, 5-year OS 93.5% (CI: 89.2-98%), when compared to patients receiving anti-Her2 therapy plus CH 92.7 % (CI: 89.4-96). Conclusions: This study provides real world data of common practices in the US . The majority of patients with node negative Stage I, ER+/PR+/Her2+ BC received adjuvant ET and anti-Her2 therapy, not chemotherapy. These patients had a similar to slightly improved 5 year- survival when compared to anti-Her2 therapy plus CH, supporting the use ET plus anti-Her2 therapy in this setting. Future studies should focus on better selecting patients with hormone receptor positive and Her 2 + early stage BC who would benefit from adjuvant CH. Disparity in outcome also warrants further evaluation. [Table: see text]

scholarly journals The orientation and migratory dynamics of the western rock lobster, Panulirus cygnus, in Western Australia

2014 ◽  
Vol 71 (5) ◽  
pp. 1052-1063 ◽  
Author(s):  
Simon de Lestang
Keyword(s):  
Large Scale ◽  
Economic Benefits ◽  
Rock Lobster ◽  
Commercial Catch ◽  
Breeding Grounds ◽  
Mean Size ◽  
Catch Rates ◽  
Panulirus Cygnus ◽  
The Impact ◽  
Oceanic Currents

Abstract Large-scale migrations are known to occur in numerous species, and in the case of the Western Rock Lobster, Panulirus cygnus, result in juveniles moving from nursery areas into deeper offshore breeding grounds. In 2008 the Western Rock Lobster fishery reduced harvest rates to increase legal and spawning biomass throughout the fishery, which also allowed greater numbers of lobsters to migrate. Increased lobster migration could potentially reduce biomass in some areas, thus adversely impacting commercial catch rates. Over 20 000 tag–recaptured lobsters were analysed to determine the dynamics underlying migration in this species and to assess the impact reduced harvest rates may have had on catches. This study showed that P. cygnus migration was associated with body size and water depth, and that magnetism and oceanic currents appear to be the most likely guideposts used for orientation. Size at migration varied in a constant fashion along the coast, being larger towards the southern end of the fishery and smallest at the offshore Abrolhos Islands. During the migration period, up to 50% of lobsters at their mean size of migration moved from coastal areas out towards deeper waters (>40 m), whereas <15% of those in deeper water at the same size moved significant distances northward. This behaviour appears to be contranatant, counteracting the downstream redistribution of larvae after their 9–11 month larval life. Reduced harvest rates and catches being focussed onto higher valued sedentary lobsters have allowed more lobsters to migrate. However, the numbers moving between management areas are relatively small, with the biological and economic benefits of fishing at a reduced exploitation rate outweighing losses to catches.

scholarly journals Prototype of Information System for Horticulture Pest and Disease Distribution

2016 ◽  
Vol 24 (2) ◽  
pp. 179
Author(s):  
Erni - Susanti
Keyword(s):  
Information System ◽  
Plant Protection ◽  
Early Stage ◽  
Temporal Distribution ◽  
Disease Outbreak ◽  
Database Management System ◽  
District Level ◽  
Development Environment ◽  
Space And Time ◽  
The Impact

The impact of climate change on the outbreak plant pest and disease seems to be likely increased in the future. However, operational information system on the outbreak of pest and disease on horticulture crops which can provide an overview of outbreak and distribution pest both in space and time is still very limited. The objective of the study is to developed prototype information system for providing information regarding area of horticulture pest and disease outbreak both space and time punctually and accurately. SIOPTHor is the early stage study to meet information regarding distribution of pest and disease outbreak. SIOPTHor is developed to performed information system including storage, processing, and analysis of distribution of pest and disease of horticulture data both in space and time on spatial and temporal. Distribution pest and disease attack data on horticulture crops (onions, red peppers and potatoes) for main horticulture crop areas in sub district level of Java were provided by local plant protection stations (BPTPH).. SIOPTHor was developed using waterfall systems development methods. This method consist of five stages, namely requirements analysis, design, implementation/coding, testing/verification and deployment/ maintenance. The software platform used for developing the system includes: 1) operation system Microsoft Windows 7, 2) programming language C#, 3) integrated development environment Microsoft Visual Studio 2008, 4) database management system Microsoft Access 2007, 5) mapper MapWinGIS v.3, 6) and software utilities such as Collapsible Panel, Microsoft Chart for NET, and adobe photoshop portable. The results showed SIOPTHor information system display informations including:1) analysis of pest and disease distribution both in space and time, 2) the Top-k OPT analysis in sub district level, 3) The most severe pest outbreak, and 4) analysis of pest and disease vulnerable index.

Short- and long-term outcomes of early stage non-small cell lung cancer (NSCLC) surgery.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 8544-8544
Author(s):  
Michael J. Kelley ◽  
David Harpole ◽  
Christina D. Williams
Keyword(s):  
Lung Cancer ◽  
Racial Differences ◽  
Squamous Cell ◽  
Causes Of Death ◽  
Early Stage ◽  
Large Cell ◽  
Stage I ◽  
Term Survival ◽  
The Impact

8544 Background: The goal of this study was to determine patient factors associated with short- vs long-term survival after surgery for stage I/II NSCLC and assess the distribution of causes of death over time. Methods: Using the VA Central Cancer Registry, we identified patients diagnosed 2001-2005 with stage I/II NSCLC who had surgery and survived 30 days after resection. We used multivariate logistic regression models to determine the impact of patient characteristics on 1 year (1Y), 5 year (5Y), and 10 year (10Y) mortality. We compared causes of death at 1Y versus 5Y after diagnosis. Results: The analysis included 4,693 patients. Among these patients, the 1Y, 5Y, and 10Y overall survival (OS) rates were 87%, 45%, and 22%, respectively. 50% of patients alive at 5 year survived to 10 years. For each survival time period, highest survival rates were among patients who were younger (≤65), had stage I disease, had lobectomy, and had fewer comorbidities (all p < 0.0001). Significant differences in 1Y and 10Y OS were noted for histology, with highest 1Y OS among adenocarcinoma (88%) and squamous cell (87%) and highest 10Y OS among large cell (28%) and adenocarcinoma (25%). Racial differences were only observed in 10Y OS (whites 22%, blacks 26%, p = 0.01). In multivariate analyses, age > 65, stage II disease, surgery other than lobectomy, and ≥3 comorbidities were associated with increased likelihood of 1Y, 5Y, and 10Y mortality. Large cell and other histology were the only additional significant predictors of 1Y mortality [OR: 1.94 (1.33-2.84) and OR:1.36 (1.05-1.77), respectively], and squamous cell histology was a significant predictor of 10Y mortality [OR: 1.19 (1.02-1.40)] relative to adenocarcinoma. Among patients who died within 1 year of diagnosis (n = 616), the primary causes of death were lung cancer (63%), cardiovascular disease (10%), other cancer (8%), respiratory disease (3%), and other causes (15). The contribution of these causes of 5Y mortality (n = 2602) were 60%, 11%, 10%, 4%, and 12%, respectively. Conclusions: Half of patients alive at 5Y after resection of stage I/II NSCLC were alive at 10Y. 10Y survival is associated with younger age, earlier stage, non-squamous histology, lobectomy, and fewer comorbidities, but not race.

scholarly journals Breast Cancer Among the Oldest Old: Tumor Characteristics, Treatment Choices, and Survival

2010 ◽  
Vol 28 (12) ◽  
pp. 2038-2045 ◽  
Author(s):  
Mara A. Schonberg ◽  
Edward R. Marcantonio ◽  
Donglin Li ◽  
Rebecca A. Silliman ◽  
Long Ngo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Early Stage ◽  
Oldest Old ◽  
Age Groups ◽  
Breast Conserving Surgery ◽  
Stage I ◽  
Tumor Characteristics ◽  
Data Set ◽  
Younger Women ◽  
The Impact

Purpose Few data are available on breast cancer characteristics, treatment, and survival for women age 80 years or older. Patients and Methods We used the linked Surveillance, Epidemiology and End Results-Medicare data set from 1992 to 2003 to examine tumor characteristics, treatments (mastectomy, breast-conserving surgery [BCS] with radiation therapy or alone, or no surgery), and outcomes of women age 80 years or older (80 to 84, 85 to 89, ≥ 90 years) with stage I/II breast cancer compared with younger women (age 67 to 79 years). We used Cox proportional hazard models to examine the impact of age on breast cancer–related and other causes of death. Analyses were performed within stage, adjusted for tumor and sociodemographic characteristics, treatments received, and comorbidities. Results In total, 49,616 women age 67 years or older with stage I/II disease were included. Tumor characteristics (grade, hormone receptivity) were similar across age groups. Treatment with BCS alone increased with age, especially after age 80. The risk of dying from breast cancer increased with age, significantly after age 80. For stage I disease, the adjusted hazard ratio of dying from breast cancer for women age ≥ 90 years compared with women age 67 to 69 years was 2.6 (range, 2.0 to 3.4). Types of treatments received were significantly associated with age and comorbidity, with age as the stronger predictor (26% of women age ≥ 80 years without comorbidity received BCS alone or no surgery compared with 6% of women age 67 to 79 years). Conclusion Women age ≥ 80 years have breast cancer characteristics similar to those of younger women yet receive less aggressive treatment and experience higher mortality from early-stage breast cancer. Future studies should focus on identifying tumor and patient characteristics to help target treatments to the oldest women most likely to benefit.

The impact of chemotherapy on the survival of early-stage I–II epithelial ovarian cancer

2008 ◽  
Vol 111 (2) ◽  
pp. 382
Author(s):  
R. Urban ◽  
H. Deshmukh ◽  
R. Zhang ◽  
X. Yu ◽  
J.Y. Shin ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Early Stage ◽  
Stage I ◽  
The Impact
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