Global diversity of fish (Pisces) in freshwater

Lévêque, Christian; Oberdorff, Thierry; Paugy, Didier; Stiassny, Melanie L. J.; Tedesco, Pablo A.

doi:10.1007/s10750-007-9034-0

Cited by 404 publications

(282 citation statements)

References 48 publications

(49 reference statements)

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“…The predominance of the orders Characiformes and Siluriformes in the freshwater ichthyofauna of Mundaú river basin follows the pattern found among freshwater fishes in Brazilian Northeast (Ramos et al 2005, Nascimento et al 2014, Silva et al 2014, in Brazil (Buckup et al 2007), and in Neotropical region (Reis et al 2003, Lévêque et al 2008. However, when estuarine and marine species are also considered, the order Perciformes is the most abundant, corroborating with other MNCE species listings (Soares-Filho et al 2010, Paiva et al 2014.…”

Section: Discussionsupporting

confidence: 75%

Ichthyofauna of Mundaú river basin, Ceará State, Northeastern Brazil

Teixeira¹,

Ramos²,

Paiva³

et al. 2017

Biota Neotrop.

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Mundaú river basin is located at Center-North Ceará State and occupies a total area of 2,227 km2, including Estuário do Rio Mundaú Environmental Protection Area. This study aimed to catalog the fishes of this basin. Collections were performed with active and passive gear in 35 sampling sites, between 2012 and 2014, in several habitats (main channels, streams, floodplains, permanent and temporary pools, ponds, and dams). A total of 2,545 specimens were collected, belonging to 55 species distributed in 10 orders, 31 families, and 50 genera; 30 of these are strictly freshwater species, and 25 estuarine-marine species. Three species (Hemigrammus guyanensis Gery, 1995, H. rodwayi Durbin, 1909 and Poecilia sarrafae Bragança & Costa, 2011) represent new records for the Mid-Northeastern Caatinga ecoregion. Besides, two cynolebiid species, Hypsolebias sp. and Anablepsoides cearensis (Costa & Vono, 2009), were found and the latter, currently classified as critically endangered, had its occurrence area widened.

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Section: Discussionsupporting

confidence: 75%

Ichthyofauna of Mundaú river basin, Ceará State, Northeastern Brazil

Teixeira¹,

Ramos²,

Paiva³

et al. 2017

Biota Neotrop.

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“…The order Characiformes is the Neotropical group of fishes with the greatest diversity of species, morphologies and behaviors (Lévêque et al 2008). Over 1500 Characiformes species have been described to date .…”

Section: Introductionmentioning

confidence: 99%

Feeding ecology of Serrapinnus notomelas (Characiformes: Cheirodontinae) in small forest streams in the Machado River basin, Rondônia, Brazil

Costa

Rocha

2017

Acta Amaz.

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Studies on the trophic structure of fish give information on species autoecology and their role in the ecosystem. The aims of this study were to characterize the diet of Serrapinnus notomelas in small streams of the River Machado basin and to assess the effect of rainfall seasonality. Fish were collected bimonthly from July 2013 to May 2014 with seine nets and hand nets. The length of each specimen was measured to identify category classes. There were also measured the fullness index and volume of each ingested item, and these data were combined to obtain an alimentary index. We used ANOVA and Kruskal-Wallis to test for differences between length classes and fullness index, Chi-squared tests to detect seasonal differences in origin of food items and non-metric multidimensional scaling analysis to examine temporal variation in diet. We found that most of the specimens were longer than 20 mm, showing a polymodal distribution. In both seasons stomachs of most fish were full. Serrapinnus notomelas feeds on items of plant and animal origin. A higher consumption of aquatic macrophytes and algae was observed, suggesting omnivorous feeding behavior with a tendency to herbivory. Items of plant and autochthonous origin were consumed more than other items in both seasons, and consumption of animal and autochthonous items varied between seasons. These results reinforce the idea that S. notomelas show trophic plasticity between seasons. KEYWORDS: Characidae, Trophic ecology, Igarapés, Ornamental fish, Amazon. Ecologia alimentar de Serrapinnus notomelas (Characiformes: Cheirodontinae) em igarapés da bacia do Rio Machado, Rondônia, Brasil RESUMOEstudos sobre a estrutura trófica de peixes dão informações sobre autoecologia espécies e seu papel no ecossistema. Os objetivos deste estudo foram caracterizar a dieta Serrapinnus notomelas em igarapés da bacia do rio Machado e avaliar o efeito da sazonalidade das chuvas. Os peixes foram coletados bimestralmente de julho 2013 a maio de 2014, com redes de arrasto e redes de mão. O comprimento de cada espécime foi medido para identificar a categoria das classes. Também foram medidos o grau de repleção e o volume de cada item ingerido, e estes dados foram combinadas para se obter um índice alimentar. Foram utilizados uma ANOVA e Kruskal-Wallis para diferenças entre classes de comprimento e graus de repleção, teste de qui-quadrado para detectar diferenças sazonais na origem dos alimentos e análise de escalonamento multidimensional não-métrico para examinar variação temporal na dieta. Nós encontramos que a maioria dos indivíduos eram maiores que 20 mm, apresentando distribuição polimodal. Para ambas as estações a maioria dos estômagos apresentaram-se cheios. Serrapinnus notomelas ingeriu itens vegetais e animais. Observamos maior consumo de macrófitas aquáticas e algas, sugerindo comportamento alimentar onívoro com tendência a herbivoria. Itens de origem vegetal e autóctone foram mais consumidos que os demais itens em ambas as estações, e o consumo de itens animais e itens autóctone...

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“…The fishery in the Omo basin includes: the riverine fishery along the main stream Omo River, flood plain fishery (Dipa Haik) and the lacustrine fishery at Lake Turkana (Bubua and Toltal) reported a total of 12 species were recorded in the Omo-Gibe basin Baro-Akobo Basin) [13]. However, more than 90 fish species were recorded by [41]. More recently, indicated that there are 113 fish species were recorded included in to 60 genera and 26 families.…”

Section: Rift Valleymentioning

confidence: 99%

“…Disease is universally recognized as one of the most serious threats to the commercial success of aquaculture [64]. Parasitic, bacterial, protozoan and viral diseases of fish are among those diseases which has great economic and public health importance particularly in the tropics [41]. In many cases, they have proved to be a serious problem causing economic losses in the fishing industry and in aquaculture.…”

Section: Fish Diseasesmentioning

confidence: 99%

Review on Opportunities and Constraints of Fishery in Ethiopia

Kebede¹,

Meko²,

Hussein³

et al. 2017

IJPFS

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SummaryFish has historically played an important role in food security in many countries and contributes to do so in globally, providing 15-20 percent of animal protein intake. Fishery has been practiced in different parts of the world. At present, the country Ethiopia has an estimated annual total exploitable fish potential of 51,481 tons, which can meet only 79 percent of the current actual demand, 55 percent of the projected demand in 2010 and 44 percent of the projected demand in 2015, based solely on population size. Ethiopia contains many lakes and rivers for fish production and also different species of fishes exist in these lakes and rivers. In addition to this there is good environmental condition for fishery and there is huge agricultural and Industrial by Product or residue due to the country mostly based on agriculture and also few industry to sustain the life of the people. Using of these opportunities fishery is an alternative means achieving food security and poverty reduction in Ethiopia. In spite of these opportunities, fishery sector of the economy has various problems, among others climate change, mismanagement of the resource, inappropriate policies and institution, inadequate technical and material backup to the sector and market are the major ones. The objective of this paper is to review the opportunities and challenges of fisheries in Ethiopia. Due to these challenges fishery is still an infant which means cannot fill the need of the demand. Therefore, the government and private should take consideration for fishery sub sector to increase productivity and gross domestic product of the country by alleviating these challenges.

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Global diversity of fish (Pisces) in freshwater

Cited by 404 publications

References 48 publications

Ichthyofauna of Mundaú river basin, Ceará State, Northeastern Brazil

Ichthyofauna of Mundaú river basin, Ceará State, Northeastern Brazil

Feeding ecology of Serrapinnus notomelas (Characiformes: Cheirodontinae) in small forest streams in the Machado River basin, Rondônia, Brazil

Review on Opportunities and Constraints of Fishery in Ethiopia

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