scholarly journals Population, Reproductive and Fishery Dynamics of Spotted Box Crab (Calappa philargius), a New Claw-Only Fishery Species, in the Southern Taiwan Strait, China

2021 ◽  
Vol 8 ◽  
Author(s):  
Bai-an Lin ◽  
Yan Jiang ◽  
Robert Boenish ◽  
Qing Xu ◽  
Min Liu

The spotted box crab Calappa philargius (Calappidae) is an increasingly consumed species in China, mainly sourced from a claw-only fishery. Being a not well-characterized species in the literature, this study is warranted to inform sustainable management approaches. Here we report on the first in-depth overview on biology and fishery dynamics of C. philargius in the southern Taiwan Strait of China. Whole body crabs (N = 1,009) were collected monthly from January to December 2019 from trawlers, operating in the southern Taiwan Strait; sample collection was absent from May to July because of the national fishing moratorium regulation. Sex ratio, growth pattern, size at maturity and fecundity were estimated. The overall male: female ratio was 1: 1.47, significantly differing from the 1: 1 (p < 0.01); monthly sex ratio variations were also significant (p < 0.01), suggesting possible seasonal sexual segregation. We found the carapace widths (CW) of males were significantly larger than those of females (p < 0.01). Based on the occurrence and percentages of berried females, we identified twin spawning events in January–April and August–October with the overall peak occurring in February. Size at 50% female maturity was 11.47 cm CW. Female absolute fecundity was significantly related to CW via a power function relationship (N = 14, p < 0.01). The estimated average claw yield was 36.28 ± 3.07% of the whole body weight (N = 95), irrespective of sex and size (p > 0.5). Capture and trade data of C. philargius using trawl and trap fishing gears were documented to characterize claw-only fishery dynamics for future research and sustainable use.

2011 ◽  
Vol 67 (4) ◽  
pp. 385-393 ◽  
Author(s):  
Huasheng Hong ◽  
Chen-Tung Arthur Chen ◽  
Yuwu Jiang ◽  
Jiann-Yuh Lou ◽  
Zhaozhang Chen ◽  
...  

2021 ◽  
Vol 240 ◽  
pp. 105969
Author(s):  
Robert Boenish ◽  
Bai-an Lin ◽  
Jacob P. Kritzer ◽  
Michael J. Wilberg ◽  
Chang-chun Shen ◽  
...  

2021 ◽  
pp. 1-24
Author(s):  
Clare Morrison ◽  
Fran Humphries ◽  
Charles Lawson

Countries are increasingly using access and benefit sharing (ABS) as a legal mechanism to support the conservation and sustainable use of the world’s biological diversity. ABS regulates collection and/or use of genetic resources/traditional knowledge and sharing benefits from their use with the provider. The purpose of this review is to assess the trends, biases and gaps of ABS literature using a regional comparative approach about the key topics of concern between each region. It analyses four key topic groupings: (1) implementation of international, regional and national ABS policy and law; (2) intellectual property and ABS; (3) traditional knowledge; and (4) research, development and commercialisation. Findings included gaps in: (1) analysing effectiveness of national level implementation; (2) addressing apparent conflicts between support for intellectual property promoting exclusivity for traditional knowledge and challenges to intellectual property exclusivity for patents; (3) examining traditional knowledge of local communities (in contrast to Indigenous Peoples); and (4) lack of practical examples that quantify benefit sharing from research and commercialisation outcomes. We conclude that future research addressing the identified gaps and biases can promote more informed understanding among stakeholders about the ABS concept and whether it is capable of delivering concrete biological conservation, sustainable use and equity outcomes.


2017 ◽  
Vol 49 (4) ◽  
pp. 1600965 ◽  
Author(s):  
Ildiko Horváth ◽  
Peter J. Barnes ◽  
Stelios Loukides ◽  
Peter J. Sterk ◽  
Marieann Högman ◽  
...  

Breath tests cover the fraction of nitric oxide in expired gas (FENO), volatile organic compounds (VOCs), variables in exhaled breath condensate (EBC) and other measurements. For EBC and for FENO, official recommendations for standardised procedures are more than 10 years old and there is none for exhaled VOCs and particles. The aim of this document is to provide technical standards and recommendations for sample collection and analytic approaches and to highlight future research priorities in the field. For EBC and FENO, new developments and advances in technology have been evaluated in the current document. This report is not intended to provide clinical guidance on disease diagnosis and management.Clinicians and researchers with expertise in exhaled biomarkers were invited to participate. Published studies regarding methodology of breath tests were selected, discussed and evaluated in a consensus-based manner by the Task Force members.Recommendations for standardisation of sampling, analysing and reporting of data and suggestions for research to cover gaps in the evidence have been created and summarised.Application of breath biomarker measurement in a standardised manner will provide comparable results, thereby facilitating the potential use of these biomarkers in clinical practice.


Author(s):  
CC Nwafor ◽  
K Obioha ◽  
TO Akhiwu

Ascites is a symptom that can originate due to diverse pathologies. A lot of investigations including ascitic fluid cytology (AFC) can be done on it to help determine its origin. The aim of this study, is to document the findings and highlight the importance of AFC in patient care in Uyo. All AFC reports and slides in the Department of Histopathology, University of Uyo were retrieved, reviewed and used for this study. The age ranged from 1.5 – 80 years with mean age, 41.79 (±17.23) years. About 71.8% of the ascitic fluid (AF) specimens were from patients between the 3rd and 6th decade. Females predominated in all age groups expect 10-19 year's group, with a male to female sex ratio of 1:2.4. Malignant cells were seen in 28.7% of all the samples, while 51.2% were negative for malignant cells. Malignant cells were seen in 4 (6.7%), 11 (18.3%) and 6 (10%) of the AFC performed due to various liver pathologies, ovarian malignancies and intra-abdominal malignancies respectively. Malignant cells were found more in females with a male to female ratio of 1: 3.6. Age group 40-49 years accounted for most of the malignant cases (26.6%). The pattern of AFC in Uyo is similar to the pattern in other parts of Nigeria


2021 ◽  
Author(s):  
Tariq A. Alzahem ◽  
Azza M.Y. Maktabi ◽  
HIND MANAA ALKATAN

Abstract Purpose: Ophthalmic histiocytic lesions comprise a heterogeneous rare group of disorders that are characterized by an abnormal proliferation of histiocytes and may affect all age groups of both genders. This rare group of diseases in the ophthalmic practice has not been previously studied in this area of the world and only individual cases reports were reported.Methods: This retrospective study has been approved on an expedited basis by the Human Ethics Committee/Institutional Review Board (HEC/IRB) at King Khaled Eye Specialist Hospital (KKESH) with a collaborative agreement between KKESH and King Abdulaziz University Hospital (KAUH) in Riyadh, Saudi Arabia aiming to collect all biopsied ocular and periocular histiocytic lesions from both centers from January 1993 to December 2018. The histopathological diagnosis was confirmed, and cases were re-classified by review of all histopathological slides. The corresponding demographic and clinical data were analyzed. Relevant literature review was also carried on for comparison of our collected analyzed data to published data and to draw our own conclusions.Results: A total of 34 ocular/periocular histiocytic lesions of 28 patients who were mostly Saudis (92.9%) were included. Male to female ratio was 4:3. The median age at presentation was 6.4 years (range: 2.8-35). Twenty-two patients had unilateral involvement and 6 patients had bilateral lesions. In Langerhans cell histiocytosis (LCH)=L group, the most common presenting findings were eyelid swelling (75%), periocular tenderness (37.5%), proptosis/globe displacement (37.5%) eyelid erythema (25%), and orbital pain (12.5%). In Rosai Dorfman disease (RDD)=C group, proptosis/globe displacement occurred in all patients, followed by decreased vision (80%). Patients with C group diseases had variable clinical features owing to the different locations of the histiocytic lesions with the majority involving the eyelids (66.7%). Diagnosis was accurately reached clinically in 38.8%, 33.7%, and 46.7% among patients in the L group, C group, and R group respectively. Overall, the clinical diagnosis was in concordance with the histopathologic diagnosis in 14 only out of 34 lesions (41.2%). Conclusions: We concluded that C group was the commonest histiocytic lesion encountered in about two-thirds of the lesions with particular prevalence of Juvenile xanthogranuloma (JXG). The histiocytic disease is more likely to be overlooked clinically especially in this group owing to its rarity and is diagnosed mainly with the help of histopathological and immunohistochemical studies. The median age of presentation was higher for R group patients, while there was tendency for JXG to present at a later age compared to the published reports. Intraocular involvement was extremely rare. All L group cases were strictly unilateral disease, while RDD (C group) was most commonly bilateral. Future research on the genetic aspects, management, and prognosis are necessary.


2018 ◽  
Vol 46 (2) ◽  
pp. 158-168 ◽  
Author(s):  
Phanie L. Charest ◽  
Vanessa Vrolyk ◽  
Pauline Herst ◽  
Maryse Lessard ◽  
Deborah M. Sloboda ◽  
...  

Histological examination of the rat placenta and fetus is uncommon. Toxicological studies mainly rely on gross examination of the fetus and on fetal and placental weights. These are often insufficient to assess the fetal and placental toxicity of xenobiotics. The small size of the fetus makes its dissection labor-intensive. Thus, our objective was to develop a simple and accurate technique to evaluate the rat fetus and placenta. Sprague-Dawley rat fetuses at gestational day 19.5 ( n = 18) and their placentas ( n = 32) were fixed in formalin. Placentas were cut transversally in the center. Fetuses were cut following a freehand whole-body serial sectioning diagram adapted from Wilson’s method. Sections were stained with hematoxylin–eosin–phloxine–saffron, and histomorphometry was used to measure the area of the fetal placental region (27.2 ± 1.7 mm2), including the labyrinth (22.2 ± 1.0 mm2) and the basal zone (4.8 ± 0.8 mm2). Our whole-fetus serial sectioning technique resulted in 12 precise cutting planes that fit on 3 histological slides, enabling the examination of most organs without labor-intensive dissection. Quantitative analysis of placental areas improves the understanding of the pathogenesis of treatment-related changes. This technique provides a standardized method for future research in pertinent fields such as developmental biology and toxicology.


2021 ◽  
pp. 103666
Author(s):  
Peilong Ju ◽  
Mingru Chen ◽  
William W.L. Cheung ◽  
Yongjun Tian ◽  
Shengyun Yang ◽  
...  

2019 ◽  
Vol 20 (3) ◽  
pp. 167-189 ◽  
Author(s):  
Vilani Sachitra ◽  
Dinushi Wijesinghe ◽  
Wajira Gunasena

Purpose Undergraduates are expected to be future leaders responsible for business and nations. Given that sound financial decision-making is critical to their success in their careers and lives, it is important to understand the money-management behaviour of undergraduates. In the context of developing countries, the body of knowledge on money-management behaviour is dominated by functional financial literature and there is little research on factors beyond this. This study aims to fill this gap by exploring economic, social and psychological factors that influence money-management behaviour of undergraduates in a developing nation (Sri Lanka) and how undergraduates respond to these influences. Design/methodology/approach The study used a qualitative exploratory approach. Data collection was carried out using focus group discussions and individual interviews amongst undergraduates in a leading Sri Lankan state university. Findings The results indicate that undergraduates adopted both careful and risky money-management approaches. The subthemes, specifically identified under economic, social and psychological factors, revealed how undergraduates responded to each of these factors and the influence of contextual and cultural differences in their money-management behaviour. Research limitations/implications Findings of the study revealed the importance of promoting innovative educational strategies to change the dependability mindset of undergraduates and to promote stress-management strategies that will assist them to enhance their personalities and creativity in making financial decisions. Theoretical and practical implications and future research directions are provided. Originality/value The literature scores in developing context are limited to exploring the existing pattern and the levels of the functional financial literacy. This study has deepened the authors’ understanding of how the developing context affects undergraduates’ response to the factors relating to their money-management behaviour. The findings from this study will be useful to government, financial institutions, educational institutions, parents and those who have a keen interest in encouraging healthy money-management behaviour in undergraduates.


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