Descrição
Fish Monitoring Dataset from the Okavango Delta, collected by Okavango Research Institute. Data Licenses as per ORI and JRS Biodiversity data standards aggreement.
Registros de Dados
Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 158 registros.
Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
Okavango Research Institute(2018): Long Term Time-Series Data on Fish Monitoring by Okavango Research Institute, Botswana. v1. Okavango Research Institute. Dataset/Samplingevent. www.monitoringdata.ub.bw/ipt/resource?r=ori_fmo_1999&v=1.0
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é Okavango Research Institute. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 77929c0a-7506-4b2d-a49d-10fc3312d50d. Okavango Research Institute publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Participant Node Managers Committee.
Palavras-chave
Fresh water fish; fish monitoring; Okavango Delta; Okavango Research Institute floodplain fisheries
Contatos
- Originador ●
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- Provedor Dos Metadados ●
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- Provedor Dos Metadados ●
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- Ponto De Contato
http://orcid.org/0000-0001-6873-0913
- Ponto De Contato
Cobertura Taxonômica
The resource covers fresh water fish of southern Africa, with restriction to Okavango Delta and its seasonal flood plains. A number of taxa are covered, including families such as Momyridae, Barbus spp, Saluroidei, Cyprinidae among others most specimen were identified to species level.
Dados Sobre o Projeto
The Monitoring Unit collects, captures, processes, analyses and disseminates information on critical environmental parameters of the Okavango Delta and its upstream Basin. This role is designed to allow the development of evidence-based management decisions for the Delta as a Ramsar and World Heritage Site, and for the Okavango Basin as a shared resource.
| Título | Fish Monitoring |
|---|---|
| Identificador | Long monitong of floodplain fishery |
| Financiamento | JRS Biodiversity Project (Mike) University of Botswana vote 02020-6594 |
| Descrição da Área de Estudo | The Okavango Delta in Botswana is a large land locked alluvial fan located in the north-western part of the semi-arid Kalahari basin of the Northern Botswana. It lies within the graben at the southern extremity of the East African rift system. It covers an area of about 22 000 km2 of which approximately 6 000 km2 is permanent swamps, 10 000 - 12 000 km2 is seasonal flooded grasslands and the rest is low lying dry savannah. The Okavango Delta represents the terminal depository for the Okavango River system, which drains from central Angola. The Okavango Delta supports the most extensive permanent wetland in southern Africa. |
| Descrição do Design | The nets were set for approximately 12 hours overnight and removed the following morning, to account for diurnal variations in fish movements. When the allocated setting time lapsed, the nets were removed from the water and placed in separate containers with maximum care taken to ensure that the catch from different mesh sizes did not mix. |
O pessoal envolvido no projeto:
- Ponto De Contato
- Ponto De Contato
- Ponto De Contato
- Ponto De Contato
- Processador
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Métodos de Amostragem
Multi-panel, multi-mesh multifilament experimental nets were used. This standardised experimental fishing technique has been used extensively in Africa. The N nets have 9 different panels with mesh of 22, 28, 35, 45, 58, 73, 93, 118, and 150mm stretched mesh., each 10m long, with different mesh size when stretched. The mesh sizes in these nets are increased geometrically with the underlying assumption that they are non-selective over a wide range of the different size classes present in the fish population. This “non-selective” feature is important for the assumption that the sample is representative of the population. The construction of the experimental fishing net validates the assumption that most fish in the population wii have an equal probability to be sampled.
| Área de Estudo | The long term fish monitoring covers the lower parts of the Panhandle in the Okavango Delta regions of Boro river at Xaxaba, extending to Chanoga in the Boteti river and Lake Ngami in the Xudum/Kunyere river system. The Monitoring Unit collects, captures, processes, analyses and disseminates information on critical environmental parameters of the Okavango Delta and its upstream Basin. This role is designed to allow the development of evidence-based management decisions for the Delta as a Ramsar and World Heritage Site, and for the Okavango Basin as a shared resource. The Okavango Delta supports the most extensive permanent wetland in southern Africa. |
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| Controle de Qualidade | Data from the different meshes were pooled later for analysis. After removal from the nets, individual fish specimens were identified to species level, weighed, sexed, measured to the nearest millimetre from the tip of snout to the caudal fin for all the fish caught by species and maturity stage (i.e. immature, mature, and spawning) were also recorded. The fish were often very tangled and so got partially damaged when removed and some fish had been partially eaten by birds, otters or other fish species while stuck in the net, however, most were easily handled and measured, in total length, and identified according to Skelton Book of "A Complete Guide to the Freshwater Fishes of Southern Africa." |
Descrição dos passos do método:
- The nets were set for approximately 12 hours overnight and removed the following morning, to account for diurnal variations in fish movements. When the allocated setting time lapsed, the nets were removed from the water and placed in separate containers with maximum care taken to ensure that the catch from different mesh sizes did not mix.
Citações bibliográficas
- Paul Skelton, (2001). A Complete Guide to the Freshwater of Southern Africa. ISBN 1-86872-643-6
- Mosepele, K., 2017. Small-scale fisheries (SSF) management in floodplain systems; the case of the Okavango Delta: What needs to be managed? How should it be managed? Pages 165- 194. In Magole, L and Delaney, A (Eds.). Partnerships and power games: Natural Resources Governance and Management in the Okavango Delta. LIT VERLAG GmbH & Co. KGWien, Zurich. [Book Chapter] (ISBN 978-3-643-90685-4) ISBN 978-3-643-90685-4
- Mosepele, K., 2016. Dynamics of the seasonal floodplain fishery of the Okavango Delta, Botswana, pages 1 – 13. In Mmopelwa, G (Editor). “Water Resource Management; Science and technology innovation for sustainable development.” (Acta Press: Canada) DOI: 10.2316/P.2016.836-024 (ISBN: 978-0-88986-984-4) ISBN: 978-0-88986-984-4
- Mosepele, K., Kolding, J and Bokhutlo, T., 2017. Fish community dynamics in an inland floodplain system of the Okavango Delta, Botswana. Ecohydrology and Hydrobiology. DOI: 10.1016/j.ecohyd.2017.01.005 DOI: 10.1016/j.ecohyd.2017.01.005
- Makati, K., Makati, A., Mosepele, K., Dhliwayo, M., Mfundisi, K and Mosie, I., 2016. Using GIS in floodplain fisheries management: The case of the Okavango Delta, Botswana, pages 47 - 55. In Mmopelwa, G (Editor). “Water Resource Management; Science and technology innovation for sustainable development.” (Acta Press: Canada) DOI: 10.2316/P.2016.836-033 (ISBN: 978-0-88986-984-4) DOI: 10.2316/P.2016.836-033
Metadados Adicionais
Mosepele, K., 2017. Small-scale fisheries (SSF) management in floodplain systems; the case of the Okavango Delta: What needs to be managed? How should it be managed? Pages 165- 194. In Magole, L and Delaney, A (Eds.). Partnerships and power games: Natural Resources Governance and Management in the Okavango Delta. LIT VERLAG GmbH & Co. KGWien, Zurich. [Book Chapter] (ISBN 978-3-643-90685-4)|| Mosepele, K., 2016. Dynamics of the seasonal floodplain fishery of the Okavango Delta, Botswana, pages 1 – 13. In Mmopelwa, G (Editor). “Water Resource Management; Science and technology innovation for sustainable development.” (Acta Press: Canada) DOI: 10.2316/P.2016.836-024 (ISBN: 978-0-88986-984-4)|| Mosepele, K, Murray-Hudson, M, Mosie, I and Sethebe, K, 2013. Lagoons’ Fish Communities in Flood-Pulsed Floodplains: Heterogeneity in a Highly Dynamic System? The Case of the Okavango Delta. In Mwinyihija, M (Editor) “Lagoons: Habitat and Species, Human Impacts and Ecological Effects”. (Nova Science Publishers: USA) pp. 149 - 174 [Book Chapter] (ISBN: 978-1-62808-096-4)|| Mosepele, K., Kolding, J and Bokhutlo, T., 2017. Fish community dynamics in an inland floodplain system of the Okavango Delta, Botswana. Ecohydrology and Hydrobiology. DOI: 10.1016/j.ecohyd.2017.01.005 Mosepele, K., Makati, K., Mosie, I., Murray-Hudson, M., xxxx. Fish biodiversity dynamics in a shallow tropical lake; The case of Lake Ngami (NOVA).|| Mosepele, K., Makati, K., Mosie, I and Murray-Hudson, M.,xxx Fish stock assessment of a shallow tropical sump lake; Lake Ngami, Botswana (NOVA)|| Makati, K., Mosie, I., Mosepele, K and Murray-Hudson, M., 2015. Environmental variability and fish species assemblages in the Okavango Delta. Poster presentation at the Botswana Symposium on Wetlands and Wildlife (17 – 19 March, 2015) held in Maun, Botswana.|| Makati, K., Makati, A., Mosepele, K., Dhliwayo, M., Mfundisi, K and Mosie, I., 2016. Using GIS in floodplain fisheries management: The case of the Okavango Delta, Botswana, pages 47 - 55. In Mmopelwa, G (Editor). “Water Resource Management; Science and technology innovation for sustainable development.” (Acta Press: Canada) DOI: 10.2316/P.2016.836-033 (ISBN: 978-0-88986-984-4)||
| Propósito | The Monitoring Unit collects, captures, processes, analyses and disseminates information on critical environmental parameters of the Okavango Delta and its upstream Basin. This role is designed to allow the development of evidence-based management decisions for the Delta as a Ramsar and World Heritage Site, and for the Okavango Basin as a shared resource. |
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| Identificadores alternativos | 77929c0a-7506-4b2d-a49d-10fc3312d50d |
| https://www.monitoringdata.ub.bw/ipt/resource?r=ori_fmo_1999 |