Fisheries of Lake Tanganyika

Occurrence
Versão mais recente published by Lake Tanganyika Floating Health Clinic on nov 14, 2022 Lake Tanganyika Floating Health Clinic
Publication date:
14 de novembro de 2022
Licença:
CC-BY-NC 4.0

Baixe a última versão do recurso de dados, como um Darwin Core Archive (DwC-A) ou recurso de metadados, como EML ou RTF:

Dados como um arquivo DwC-A download 132 registros em English (12 KB) - Frequência de atualização: quando necessário
Metadados como um arquivo EML download em English (28 KB)
Metadados como um arquivo RTF download em English (18 KB)

Descrição

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

Registros de Dados

Os dados deste recurso de ocorrência 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 132 registros.

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:

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

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Lake Tanganyika Floating Health Clinic. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: edbaf6ba-fce1-4d37-a526-67cd1a0bcc1e.  Lake Tanganyika Floating Health Clinic publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Participant Node Managers Committee.

Palavras-chave

Occurrence; Lake Tanganyika; DRC

Contatos

Deo Mushagalusa
  • Consultant
Lake Tanganyika Floating Health Clinic
Uvira
CD
Frans Moore
  • Provedor Dos Metadados
  • Project Manager
Lake Tanganyika Floating Health Clinic
US
Amy Lehman
  • Pesquisador Principal
  • CEO/Founder
Lake Tanganyika Floating Health Clinic
US
Frans Moore
  • Provedor Dos Metadados
  • Project Manager
Lake Tanganyika Floating Health Clinic
US
Amy Lehman
  • Pesquisador Principal
  • Founder/CEO
Lake Tanganyika Floating Health Clinic
US
Deo Mushagalusa
  • Consultant
Lake Tanganyika Floating Health Clinic
CD

Cobertura Geográfica

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

Coordenadas delimitadoras Sul Oeste [-5,085, 29,026], Norte Leste [-3,892, 29,432]

Cobertura Taxonômica

All fish were identified to genus or species.

Gênero Callochromis, Mastacembelus, Petrochromis, Simochromis, Trematocara, Xenotilapia
Espécie 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

Cobertura Temporal

Data Inicial / Data final 2022-03-23 / 2022-05-10

Dados Sobre o Projeto

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

Título Critical Biodiversity Surveys in the Lake Tanganyika & Ruzizi River Basins
Identificador LTFHC-2022
Financiamento JRS Biodiversity Foundation - P.O. Box 4541, Arlington VA 22204 Rustandy Center for Social Sector Innovation - 5807 S. Woodlawn Ave., Chicago, IL 60637 USA
Descrição da Área de Estudo 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.
Descrição do Design 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).

O pessoal envolvido no projeto:

Amy Lehman
  • Pesquisador Principal
Deo Mushagalusa
Frans Moore

Métodos de Amostragem

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.

Área de Estudo 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.
Controle de Qualidade 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.

Descrição dos passos do método:

  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).

Citações bibliográficas

  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.

Metadados Adicionais

Propósito

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

Descrição da manutenção Data will be maintained as needed or requested.
Identificadores alternativos https://cloud.gbif.org/africa/resource?r=fishesoftanganyika