Fisheries of Lake Tanganyika

Событие
Последняя версия опубликовано Lake Tanganyika Floating Health Clinic нояб. 14, 2022 Lake Tanganyika Floating Health Clinic
Дата публикации:
14 ноября 2022 г.
Опубликовано:
Lake Tanganyika Floating Health Clinic
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 132 Записи в English (12 KB) - Частота обновления: по мере необходимости
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Описание

The fishes of Lake Tanganyika documented between April 2022 - May 2022 in South Kivu Province, DRC.

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 132 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:

Mushagalusa D, Moore F, Lehman A (2022): Fisheries of Lake Tanganyika. v1.0. Lake Tanganyika Floating Health Clinic. Dataset/Occurrence. https://cloud.gbif.org/africa/resource?r=fishesoftanganyika&v=1.0

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является Lake Tanganyika Floating Health Clinic. 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: edbaf6ba-fce1-4d37-a526-67cd1a0bcc1e.  Lake Tanganyika Floating Health Clinic отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке Participant Node Managers Committee.

Ключевые слова

Occurrence; Lake Tanganyika; DRC

Контакты

Deo Mushagalusa
  • Consultant
Lake Tanganyika Floating Health Clinic
Uvira
CD
Frans Moore
  • Metadata Provider
  • Project Manager
Lake Tanganyika Floating Health Clinic
US
Amy Lehman
  • Principal Investigator
  • CEO/Founder
Lake Tanganyika Floating Health Clinic
US
Frans Moore
  • Metadata Provider
  • Project Manager
Lake Tanganyika Floating Health Clinic
US
Amy Lehman
  • Principal Investigator
  • Founder/CEO
Lake Tanganyika Floating Health Clinic
US
Deo Mushagalusa
  • Consultant
Lake Tanganyika Floating Health Clinic
CD

Географический охват

Northern Lake Tanganyika within the boundaries of the Democratic Republic of the Congo.

Ограничивающие координаты Юг Запад [-5,085, 29,026], Север Восток [-3,892, 29,432]

Таксономический охват

All fish were identified to genus or species.

Genus Callochromis, Mastacembelus, Petrochromis, Simochromis, Trematocara, Xenotilapia
Species Auchenoglanis occidentalis, Bagrus docmak, Bathybates elongatus, Bathybates fasciatus, Bathybates graueri, Bathybates minor, Benthochromis tricoti, Boulengerochromis microlepis, Callochromis melanostigma, Cardiopharynx shoutedeni, Chrysichthys graueri, Chrysichthys sianenna, Ctenochromis horei, Cyathopharynx furcifer, Cyphotilapia frontosa, Cyprichromis microlepidotus, Gnathochromis pfefferi, Grammatotria lemairii, Haplochromis burtoni, Hemibates stenosoma, Lamprichthys tanganicanus, Lamprologus callipterus, Lates microlepis, Lates stappersii, Lepidiolamprologus attenuatus, Lepidiolamprologus cunningtoni, Lepidiolamprologus elongatus, Lepidiolamprologus marlieri, Limnochromis auritus, Limnothrissa miodon, Limnotilapia dardennii, Lobochilotes labiatus, Malapterurus electricus, Mastacembelus plagiostomus, Neolamprologus brichardi, Oreochromis leucostictus, Oreochromis tanganicae, Perissodus microlepis, Simochromis diagramma, Stolothrissa tanganicae, Telmatochromis dhonti, Trematocara variabile, Tylochromis polylepis, Xenotilapia sima

Временной охват

Дата начала / Дата окончания 2022-03-23 / 2022-05-10

Данные проекта

Key biodiversity sampling of fish populations around the Ubwari peninsula on the western shores of Lake Tanganyika.

Название Critical Biodiversity Surveys in the Lake Tanganyika & Ruzizi River Basins
Идентификатор LTFHC-2022
Финансирование JRS Biodiversity Foundation - P.O. Box 4541, Arlington VA 22204 Rustandy Center for Social Sector Innovation - 5807 S. Woodlawn Ave., Chicago, IL 60637 USA
Описание района исследования Northern Lake Tanganyika, with the boundaries of the Democratic Republic of the Congo. Areas included sites off the Ubwari peninsula and to the South of the Ubwari Peninsula.
Описание плана выполнения исследований Fish sampling was carried out from local commercial caches by fishermen using various fishing gears and techniques (e.g., gillnet, seine, liftnet and handlines) when landing in eight nearshore villages visited at the study area and analysed at the laboratory of Biology at the Centre for Research on Hydrobiology (DR Congo).

Исполнители проекта:

Amy Lehman
  • Principal Investigator
Deo Mushagalusa
Frans Moore

Методы сбора

Collections of fish samples were performed once or twice per site from March to May 2022 using complementary methods in each selected station. Individuals fish species were collected in different habitats within the selected sites from local commercial catches of fishermen using their different fishing gears: gillnets of different mesh sizes and widths, beach seines and liftnets with mixed mesh sizes, gillnets with various techniques (i.e., monofilament, dormant, encircling and deep gillnets, …) and illegal mosquito nets of smaller mesh-sizes (02-03 mm). These various gears were surveyed in each sampling day and site according to the fishing habitat (lake substratum) and lake site (inshore vs. offshore). We recorded the features of each net directly at the sampling site such as the length, width (near 1.00 m) and mesh-size (near 1.00 mm) using a measuring tape or decametre. We noted the fishing depth, the duration as well as the effort (e.g., number of nets per active fishing unit, number of fisherman and net hauls) for each gear. The presence of each gear at a site allowed assessing the rate of fishing activity and fish distribution within the sampling habitats. The type of fishery and net, the numbers of fishermen involved per trip and per fishing unit were recorded and are discussed in relation to the type of gear used. After each fishing trial, fresh weight (in kg) of each sample was measured per fishing gear and number (net hauls per trip) recorded whenever possible. For each type of fishing, fish samples with a selection of species were usually bought from fishermen, and preliminary sorted at sampling sites (as fishermen did not deliver their entire fish capture) by species and after being weighed. The fish samples (handful) were collected and killed and preserved into ethanol (75%) and then fixed in formaldehyde (10%) to slow decomposition of organs. All fish species captured were identified, weighed and counted following the fishing habitat and effort. The samples were separated into smaller bags by type of fishing-gear, site and other parameters of the fishing-effort and environment and kept in 10% formaldehyde for subsequent analysis in the laboratory.

Охват исследования The field area was located at the northwestern part of Lake Tanganyika along the Congolese shores in Ubwari area (from Nguma to Mizimu point) and Baraka City (Mwandiga and Mwemezi sites) in the territory of Fizi (4°18′4″S, 28°56′39″E). Due to logistic constraints and field accessibility (human activities disruption or not, fishing effort) and safety, the sampling and survey sites consisted of at least 8 main villages established along the coastline in these areas including 2 in Baraka (Mwemezi and Mwandiga) and 6 in Ubwari (Nguma, Kazimia, Buma, Kihimino, Mwayenga, and Dine/Mizimu). This region has a tropical humid climate characterized by an alternation of wet and dry seasons and is currently subject to physical factors at different scales. All those beach fishing sites were easily accessible from each one by boat and have fishing activities as main occupation. Whenever necessary, each main site was split up into different small sub-sites according to the type of littoral habitat of the lake, i.e., sandy, rocky, mixed, and the type of fishing practices. The critical habitat of a fish species is defined as a geographic or physical area essential to the realization of the life cycle (Lévêque 1995). However, the knowledge of local communities and advices of experienced local fishermen were considered during the fish sampling in each site. At the field of investigation, some localities of high human influences are undergoing alterations (water pollution and sedimentation, fishing with unsuitable fishing gears and techniques and deforestation) with some fish species exposed to human pressures or extinction in the future.
Контроль качества Quality control was implemented through the steps and process outlined for all staff at the Center for Research on Hydrobiology. In addition, there was internal quality control measures that were put in place such as routine monitoring and evaluation of project progress.

Описание этапа методики:

  1. At the laboratory of Biology at the Centre de Recherche en Hydrobiologie (CRH, Uvira, DR Congo) each sample was re-sorted into species by fishing gear and habitat or fishing effort and each species identified following available books and/or keys (Fryer and Iles 1972; Axelrod et al 1977; Poll 1956, 1986; Brichard 1978, 1989; Eccles 1992; Konings 2015; Fermon et al 2007) Then, specimens were sorted by species, counted and the total, standard lengths (TL and SL) and the body height (BH) were measured (nearest 0.1 mm). These measurements and measuring techniques of fish were executed according to Barel et al. (1977), Eccles (1992), Snoeks (1994), Snoeks et al (1994), Snoeks et al (1997), Snoeks (2000) and Hanssens and Snoeks (2003). Sex was determined by exanimating the genital papillae and other external body feature such as coloration patterns (Snoeks 2000). For details in the sex, fish were dissected to determine the maturity stages of gonads following De Kimpe (1964), Micha (1973), Plisnier (1990). Each fish was then weighed (using various scales following species and individual sizes), the viscera and the gonads removed, and weighed (nearest 0.001g) and the body re-weighed to calculate the gonado-somatic index (GSI).

Библиографические ссылки

  1. Lévêque C. 1995. L'habitat : être au bon endroit au bon moment? Bull. Fr. Pêche Pisci. 337/338/339: 9-20
  2. Fryer, G. and Iles, T. D., 1972. The Cichlid fishes of the Great Lakes of Africa. Their Biology and Evolution. Oliver & Boyd, Edinburg. T. F. H. Publications. 641p.
  3. Axelrod, H. R. and Burgess, W. E., 1977. African Cichlids of Lake Malawi and Tanganyika. T. F. H. Publications, New Jersey, Sixth edition.
  4. Poll M., 1956. Poisson cichlidae. Result. Scient. Explor. Hydrobiol. Lac Tanganika (1946-1947), 3, Fasc. 5b, 1-619
  5. Poll, M., 1986. Classification des Cichlidae du Lac Tanganyika, Tribus, Genres et espèces. Mém. Cl. Sci., Acad. r. de Belgique, 8◦ (2) 45(2), 1–163.
  6. Brichard, P., 1978. Fishes of Lake Tanganyika. T. F. H. Publication, Inc. 442p.
  7. Brichard, P., 1989. Pierre Brichard’s book of cichlids and all the other fishes of Lake Tanganyika. T. F. H. Publications Inc., Nepture City, N. J., USA.
  8. Eccles, D. H., 1992. FAO species identification sheets for fishery purposes. Field guide to the freshwater fishes of Tanzania. The United Nations Development Programme, Project URT/87/016, Rome, FAO. 1992. p. 145.
  9. Konings A (2015) Tanganyika cichlids in their natural habitat. 3rd Edition, Cichlid Press, El Paso.
  10. Fermon, Y., 2007. Etude de l’état des lieux de la partie nord du lac Tanganyika dans le cadre du Programme Pêche d’Action Contre la Faim en R. D. Congo. Action Against Hunger-USA.
  11. Snoeks, J., 1994. The haplochromine fishes (Teleostei, Cichlidae) of Lake Kivu, East Africa: a taxonomic revision with notes on their ecology. Annales du Musee Royal de l’Afrique Centrale (Sciences Zoologiques) 270, 1–221.
  12. Snoeks J, L. De Vos and D. T. van den Audenaerde, 1997. The ichthyogeography of Lake Kivu. South Africa J. Science, vol. 93
  13. Snoeks, J., 2000. How well known is the ichthyodiversity of the large East African lakes? Advances in Ecological Research, 31, 17–38.
  14. Plisnier P.D., 1990. Ecologie comparée et exploitation rationnelle de 2 population d’Happlochromis spp (Teléostei, Cichlidae) des lacs Ihema et Muhazi (Rwanda). Thèse de doctorat, Faculté des Sciences Agronomiques UCL, Louvain-la-Neuve, 300pp.

Дополнительные метаданные

Цель

The purpose of creating this data set is to allow open-access to vital conservation data.

Описание частоты обновления ресурса Data will be maintained as needed or requested.
Альтернативные идентификаторы https://cloud.gbif.org/africa/resource?r=fishesoftanganyika