Fish species occurrences from selected near shore and riverine habitats in Lake Edward (2019)

Occurrence
Последняя версия опубликовано National Fisheries Resources Research Institute окт. 17, 2020 National Fisheries Resources Research Institute
Дата публикации:
17 октября 2020 г.
Лицензия:
CC-BY-NC 4.0

Скачайте последнюю версию данных этого ресурса в формате Darwin Core Archive (DwC-A) или метаданных ресурса в форматах EML или RTF:

Данные в формате DwC-A Скачать 243 Записи в English (13 KB) - Частота обновления: as needed
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Описание

This dataset is of fish occurrences observed in Lake Edward. Fishes were collected using gillnets from sheltered, riverine and rocky habitats in March and July 2019.

Записи данных

Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 243 записей.

Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.

Версии

В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.

Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Musinguzi L, Nsega M, Nkalubo W, Nakiyende H (2020): Fish species occurrences from selected near shore and riverine habitats in Lake Edward (2019). v1.2. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=lake_edward_leaf_19&v=1.2

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является National Fisheries Resources Research Institute. Эта работа находится под лицензией Creative Commons Attribution Non Commercial (CC-BY-NC 4.0).

Регистрация в GBIF

Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: 46090fec-fafb-44c1-aa10-2de851fcff41.  National Fisheries Resources Research Institute отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке GBIF Uganda.

Ключевые слова

Occurrence; Lake Edward; Uganda; Freshwater biodiversity; Observation

Контакты

Laban Musinguzi
  • Metadata Provider
  • Originator
  • User
  • Point Of Contact
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Monic Nsega
  • Metadata Provider
  • Originator
Principal research technitian
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Winnie Nkalubo
  • Metadata Provider
  • Originator
Director of Research
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Herbert Nakiyende
  • Metadata Provider
  • Originator
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Vianny Natugonza
  • Point Of Contact
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG

Географический охват

The dataset covers Lake Edward, Uganda

Ограничивающие координаты Юг Запад [-0,514, 29,6], Север Восток [-0,044, 29,932]

Таксономический охват

The dataset covers fishes in Lake Edward, Uganda

Genus Haplochromis, Labeobarbus/Enteromius
Species Astatoreochromis alluaudi , Bagrus docmak, Clarias gariepinus, Coptodon zillii, Ctenopoma muriei, Haplochromis labiatus, Haplochromis squamipinnis, Labeo forskalii, Labeobarbus altianalis, Mormyrus kannume, Oreochromis niloticus, Oreochromis leucostictus, Protopterus aethiopicus

Временной охват

Период формирования 2019

Данные проекта

The project was an investment of the Nile Basin Initiative (NBI), through the Nile Equatorial Lakes Subsidiary Action Program (NELSAP) on lakes Edward and Albert as a trans-boundary lake to tackle anthropogenic and environmental threats to fisheries. The objective of the project was to identify, characterize and map fish breeding areas on the lakes in order to guide their gazettement and protection for sustainable management of the trans-boundary fisheries resources.

Название Identification, characterisation and mapping of fish breeding areas on Lakes Edward and Albert
Идентификатор CONTRACT NO: NELSAP/LEAF/2018/SVS/FBA
Финансирование The project was funded by the Nile Basin Initiative (NBI), through the Nile Equatorial Lakes Subsidiary Action Program (NELSAP)
Описание района исследования Lake Edward (surface area 2,300 Km2; average depth 17 m; maximum depth 117 m) is one of the African Great Rift lakes. It is shared between the Democratic Republic of Congo (DRC) (71%) and Uganda (29%). The lake’s major inflows are the Rwindi, Rutshuru, Nyamugasani, Ishasha, Taliha and Lubiriha rivers. The lake is connected to Lake George by the 36 km long Kazinga Channel. Most of the lake is bordered by Queen Elizabeth National Park in Uganda and Virunga National Park in the Democratic Republic of Congo (DRC). Lake Edward supports commercial fisheries in both DRC and Uganda.
Описание плана выполнения исследований The aim of the project was to identify sites suitable for designation as fish breeding areas. A reconnaissance survey was undertaken to characterize habitats along the shorelines in the lake to identify potential sites. Selection of study sites was based on known habitat preferences for fish (e.g. sandy, muddy, vegetated, and rocky areas) and local knowledge of the riparian communities about habitat types of the lake. At the end, 6 sites were selected for the study. The sites were diverse with different physical characteristics. Lubiriha: Associated with Lubiriha river mouth with vegetation fringes of phragmites and sandy bottom 1. Kayanja: Sheltered bay (lagoon) with vossia, phragmites, and cyperus sp. The sediment was moderate muddy 2. Nyamugasani: At the river mouth of Nyamusagani river with sandy bottom 3. Ruhandagati (Mukiyinja): Open sandy shoreline. The shoreline is forested and rocky. Vegetation is dominated by ambauch trees. The bottom was rocky and sandy. 4. Katako: Sheltered bay with muddy bottom. The shoreline is forested by ambatch trees and woodland 5. Rwenshama: Associated with Ntungwe river mouth, Ishasha river mouth and Izibibi river mouth. The fringes are vegetated by papyrus and ambauch trees. The bottom is sandy. 6. Kisenyi: Associated with Nyamweru river mouth. The shoreline consists of fringes of woodland, papyrus, and ambatch. The bottom is sandy.

Исполнители проекта:

Laban Musinguzi
Monic Nsega
Winnie Nkalubo
Herbert Nakiyende

Методы сбора

Experimental gill-netting was carried out at selected stations. Experimental gill-netting was conducted twice in each site in March and July 2019. At each station, three fleets of graded mesh gill nets (ranging from size 1” to 8”) were set parallel to the shoreline out towards the open water. The inshore (1st) fleet was set next to the shoreline vegetation within 0-100 m distance. The middle fleet was set between 100 m and 200 m from the 1st fleet while the last (offshore) fleet was set more than 300 m from the shore. The nets were set in the evening (1800h – 1900h) and lifted at dawn (0500h – 0600h) the following morning. After retrieval of gill nets, fish were removed, sorted, identified to the lowest taxonomical category possible, counted and weighed.

Охват исследования The sampling was conducted using experimental gill netting in Lake Edward. The experimental gill-netting was conducted twice in 2019. The first sampling was conducted in March and the second sampling, in July.
Контроль качества Measures taken to improve data quality included taking field photos of identified fish species; using fish identification keys to identify fish. Specimens for fish that could not be identified in the field were transferred to the laboratory for further processing. Species names were validated using FishBase (Froese & Paully, 2019).

Описание этапа методики:

  1. Fish capture Fish were captured using experimental gill-nets set at selected stations. The gill-netting was done twice in 2019 (March and July). At each station, three fleets of multifilament gill nets of mesh sizes ranging from 1 to 8 inches were set parallel to the shoreline. The inshore (1st) fleet was set next to the shoreline vegetation within 0-100 m distance from the shoreline. The middle fleet was set between 100 m and 200 m from the 1st fleet while the last (offshore) fleet was set more than 300 m from the shore. The nets were set in the evening (1800h – 1900h) and retrieved at dawn the next day.
  2. Data processing Fish retrieved from gill-nets were sorted by taxa, counted and weighted.

Дополнительные метаданные

Альтернативные идентификаторы 46090fec-fafb-44c1-aa10-2de851fcff41
http://ipt-uganda.gbif.fr/resource?r=lake_edward_leaf_19