Technologies and strategies for ex situ conservation of aquatic organisms: The role of cryopreservation in long-term management

2022 ◽  
pp. 1-48
Author(s):  
Elsa Cabrita ◽  
Ákos Horváth ◽  
Zoran Marinović ◽  
Juan F. Asturiano
Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1904
Author(s):  
Johannes M. M. Engels ◽  
Andreas W. Ebert

In this paper, we review gene bank operations that have an influence on the global conservation system, with the intention to identify critical aspects that should be improved for optimum performance. We describe the role of active and base collections and the importance of linking germplasm conservation and use, also in view of new developments in genomics and phenomics that facilitate more effective and efficient conservation and use of plant agrobiodiversity. Strengths, limitations, and opportunities of the existing global ex situ conservation system are discussed, and measures are proposed to achieve a rational, more effective, and efficient global system for germplasm conservation and sustainable use. The proposed measures include filling genetic and geographic gaps in current ex situ collections; determining unique accessions at the global level for long-term conservation in virtual base collections; intensifying existing international collaborations among gene banks and forging collaborations with the botanic gardens community; increasing investment in conservation research and user-oriented supportive research; improved accession-level description of the genetic diversity of crop collections; improvements of the legal and policy framework; and oversight of the proposed network of global base collections.


2018 ◽  
Vol 26 (2) ◽  
pp. 47-69
Author(s):  
Hyeyeon Im ◽  
Minkyung Jung ◽  
Kyungsook Ahn ◽  
Ki Hyun Ryu

2015 ◽  
Vol 7 (3) ◽  
pp. 313-315
Author(s):  
Jibankumar S. KHURAIJAM ◽  
Rup K. ROY

Ex-situ conservation is an important key in the management of rare, endangered and threatened (RET) plant species and its effectiveness depends on several factors. Maintenance of viable germplasm and its subsequent propagation plays an important role in long term conservation of many RET species. Nepenthes khasiana is a rare and gravely threatened species in the wild due to over-collection and other threats. The species needs urgent in-situ and ex-situ conservation. Development of easy to propagate techniques would pave faster multiplication for its use of educational, medicinal and horticultural purpose. In the present paper, successful propagation technique of Nepenthes khasiana through seeds is demonstrated along with detailed information on precautions to be taken during the adoption of the techniques.


2019 ◽  
Vol 40 (3) ◽  
pp. 265-290 ◽  
Author(s):  
Valarie Thomas ◽  
Yu Wang ◽  
Pascale Van Rooij ◽  
Elin Verbrugghe ◽  
Vojtech Baláž ◽  
...  

Abstract The infectious chytrid fungus Batrachochytrium salamandrivorans (Bsal) has been responsible for severe population declines of salamander populations in Europe. Serious population declines and loss of urodelan diversity may occur if appropriate action is not taken to mitigate against the further spread and impact of Bsal. We provide an overview of several potential mitigation methods, and describe their possible advantages and limitations. We conclude that long-term, context-dependent, multi-faceted approaches are needed to successfully mitigate adverse effects of Bsal, and that these approaches should be initiated pre-arrival of the pathogen. The establishment of ex situ assurance colonies, or management units, for species threatened with extinction, should be considered as soon as possible. While ex situ conservation and preventive measures aimed at improving biosecurity by limiting amphibian trade may be implemented quickly, major challenges that lie ahead are in designing in situ disease containment and mitigation post-arrival and in increasing public awareness.


2006 ◽  
Vol 22 (4) ◽  
pp. 334-341 ◽  
Author(s):  
C. W. Watts ◽  
L. J. Clark ◽  
P. R. Poulton ◽  
D. S. Powlson ◽  
A. P. Whitmore

2021 ◽  
Vol 886 (1) ◽  
pp. 012087
Author(s):  
Budiaman ◽  
Yusran ◽  
Samuel Arung Paembonan ◽  
Iswara Gautama ◽  
Hertasning Yatim

Abstract Luwu Utara District has the potential of natural resources and other supporting potentials in the development of the local bees Trigona incisa, but until now has not been inventoried accurately so there is no data base to formulate its development strategy in order to optimize the potential use. This study aims to determine Formulating an ex-situ conservation strategy for local beekeeping in North Luwu Regency.the potential development of local bees cultivation Trigona incisa in North Luwu . The research method used is direct observation, secondary data review, semi-structured interviews, ven diagrams, braistorming and discussion with target groups. The data collected consist of primary data and secondary data. The socioeconomic data obtained, analyzed descriptively, the role data between sectors were analyzed by Ven Diagram, policy data were analyzed with Content Analysis, while the local cultivation development strategy was analyzed by SWOT Analysis. The results showed that: North Luwu Regency had considerable potential in supporting the development of Trigona incisa local bees culture, among others: government policy, socio-cultural breeders, biophysical conditions and basic skills/knowledge of mastering several apiary technologies. The formulation of local bees cultivation development strategy in North Luwu Regency covers short and long term strategy. Short-term strategies include: Strengthening potential data base, network and information of farmers community through counseling/training. While long-term strategy include: Improvement of community empowerment of farmers through counseling/training (cultivation, harvest management, processing and marketing), creation of queen bee breeding center, and training of queen making and pest and disease control techniques.


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