Inventory of the fish fauna from Laranjinha River, Paranapanema River system, Brazil

Abstract: This work is the most comprehensive survey of the Laranjinha River´s fishes, a tributary of the Cinzas River, Paranapanema River basin. Throughout its course, there is only a low-height dam, including a transposition system located 98 km from its mouth. The sampling was carried out in nine locations, from the source to the mouth, with six field incursions in each location, using different fishing gear. A total of 11,924 fish were collected, distributed in seven orders, 27 families, and 100 species. The most representative order in the number of species was Siluriformes, followed by Characiformes. As for the families, Loricariidae comprised 21% and Characidae 14% of species richness. Phalloceros harpagos was the species with the highest absolute abundance, representing 11.3% of the total, followed by Hypostomus ancistroides with 9.8%. However, considering the average abundance and frequency of occurrence, Hypostomus ancistroides was the most abundant species, followed by Hypostomus cf. paulinus, Psalidodon aff. paranae and Phalloceros harpagos. Among the collected species, the Apteronotus acidops, Brycon orbygnianus, Brycon nattereri, Crenicichla jupiaensis, and Rhinelepis aspera were classified as endangered on the most recent IUCN Red List. Also, from the total sampled fish, 9.8% are considered non-native species. Among the native species recorded, 10 species are large migratory species, which indicates that the Laranjinha River is a route for spawning and maintenance of species diversity in the middle Paranapanema River. Therefore, the Laranjinha River is a heritage of fish diversity and deserves special attention in its preservation.

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Historical Changes in Large River Fish Assemblages of the Americas

Historical Changes in Large River Fish Assemblages of the Americas ◽

10.47886/9781888569728.ch7 ◽

2005 ◽

Keyword(s):

Native Species ◽

Fish Assemblages ◽

Fish Fauna ◽

River System ◽

Endangered Species Act ◽

Large River ◽

Main Stem ◽

Lake Mead ◽

Virgin River ◽

Native Fishes

Abstract.—The Virgin–Moapa River system supports nine native fish species or subspecies, of which five are endemic. Woundfin Plagopterus argentissimus and Virgin River chub Gila seminuda are endemic to the main-stem Virgin River, whereas cooler and clearer tributaries are home to the Virgin spinedace Lepidomeda mollispinis. Moapa dace Moapa coriacea and Moapa White River springfish Crenichthys baileyi moapae are found in thermal springs that form the Moapa River, and Moapa speckled dace Rhinichthys osculus moapae is generally found below the springs in cooler waters. The agricultural heritage of the Virgin–Moapa River system resulted in numerous diversions that increased as municipal demands rose in recent years. In the early 1900s, trout were introduced into some of the cooler tributary streams, adversely affecting Virgin spinedace and other native species. The creation of Lake Mead in 1935 inundated the lower 80 km of the Virgin River and the lower 8 km of the Moapa River. Shortly thereafter, nonnative fishes invaded upstream from Lake Mead, and these species have continued to proliferate. Growing communities continue to compete for Virgin River water. These anthropogenic changes have reduced distribution and abundance of the native Virgin–Moapa River system fish fauna. The woundfin, Virgin River chub, and Moapa dace are listed as endangered, and the Virgin spinedace has been proposed for listing. In this paper we document how the abundance of these species has declined since the Endangered Species Act of 1973. Currently, there is no strong main-stem refugium for the Virgin River native fishes, tributary refugia continue to be shortened, and the Moapa River native fishes continue to be jeopardized. Recovery efforts for the listed and other native fishes, especially in the Virgin River, have monitored the declines, but have not implemented recovery actions effective in reversing them.

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High prevalence of non-native fish species in a remote region of the Mamberamo River, Indonesia

Pacific Conservation Biology ◽

10.1071/pc19004 ◽

2020 ◽

Vol 26 (3) ◽

pp. 293

Author(s):

Arif Wibowo ◽

Dwi Atminarso ◽

Lee Baumgartner ◽

Anti Vasemagi

Keyword(s):

Native Species ◽

River System ◽

New Guinea ◽

Current Status ◽

Native Fish ◽

Fish Diversity ◽

Main River ◽

Main River Channel ◽

High Prevalence ◽

Major River

Indonesian freshwater fish diversity is threatened by human activities such as logging, land clearing, pollution and introduction of non-native species. The latter may pose serious threats to endemic freshwater fauna even in relatively pristine and isolated habitats. One such area, West Papua in the island of New Guinea, is one of the least studied regions in the world and a biodiversity hotspot. The Mamberamo River contains the highest proportion of non-native fish compared to other major river systems in New Guinea. To document this, we conducted a field study to validate and further temporally characterise the fish biodiversity to ascertain its current status. Since the last ichthyological survey 15 years ago, we detected two additional non-native species (Leptobarbus melanopterus and Oreochromis niloticus) that have established in the river system. Moreover, our survey revealed that non-native fish are extremely common in the mid reaches of the Mamberamo River, comprising 74% of total catch, with non-native Barbonymus gonionotus (family Cyprinidae) now established as the dominant species. The biomass of non-native B. gonionotus now exceeds that of all native fish combined in the main river channel. These results highlight the serious threat of invasive species in remote regions that support high levels of endemic biodiversity. Plans for containment, prevention through education programmes, and management are urgently required.

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Ichthyofauna of Rio Jurubatuba, Santos, São Paulo: a high diversity refuge in impacted lands

Biota Neotropica ◽

10.1590/s1676-06032010000100010 ◽

2010 ◽

Vol 10 (1) ◽

pp. 107-114 ◽

Cited By ~ 2

Author(s):

George Mendes Taliaferro Mattox ◽

José Manoel Pires Iglesias

Keyword(s):

Fish Fauna ◽

Abundant Species ◽

Field Trips ◽

Atlantic Rainforest ◽

Fish Diversity ◽

Freshwater Species ◽

Conservation Policies ◽

Geophagus Brasiliensis ◽

Critical Location ◽

High Diversity

Ichthyofaunistic surveys in the Atlantic Rainforest have been published in relatively few works, in spite of the major biological importance of this once vast biome which is rapidly vanishing due to disordered human population growth and natural resources overexploitation. The present study aimed to access the fish fauna of a relatively well preserved basin between the cities of Santos and Cubatão (SP), an area highly modified by human activities where recent ichthyofaunistic surveys are still missing. Collections were made during three field trips in Rio Jurubatuba, a medium sized costal river, and Riacho Sabão, one of its main tributaries. A total of 2773 specimens were sampled, representing 25 species from 14 families. Six species were primary marine using the upper reaches of Rio Jurubatuba. Twelve of the 19 freshwater species are endemic of the Atlantic Rainforest and four are present in regional lists of endangered species. Only five species occurred in both Rio Jurubatuba and Riacho Sabão. The most diverse family was Characidae, followed by Poeciliidae, Rivulidae and Heptapteridae. Phalloceros caudimaculatus was the most abundant species, followed by Poecilia vivipara and Geophagus brasiliensis. The study area is considered well preserved and due to its critical location, urges for conservation policies to protect its fish diversity.

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Ichthyofaunal diversity in the upper-catchment of Kabini River in Wayanad part of Western Ghats, India

Journal of Threatened Taxa ◽

10.11609/jott.6159.13.2.17651-17669 ◽

2021 ◽

Vol 13 (2) ◽

pp. 17651-17669

Author(s):

Dencin Rons Thampy ◽

M.R. Sethu ◽

M. Bibin Paul ◽

C.P. Shaji

Keyword(s):

Fish Species ◽

Western Ghats ◽

Native Species ◽

River System ◽

Freshwater Fishes ◽

Iucn Red List ◽

Cauvery River ◽

True Diversity ◽

Distribution Ranges ◽

The Western Ghats

We present here a detailed account of the diversity, distribution, threats, and conservation of freshwater fishes in the upper-catchment of the Kabini River in the Wayanad part of the Western Ghats Biodiversity Hotspot. A total of 136 fish species belonging to 13 orders, 29 families, and 69 genera were recorded. Order Cypriniformes dominated with five families, 36 genera, and 84 species, and Cyprinidae was the dominant family represented by 51 species within 21 genera. The true diversity of ichthyofauna in this catchment, is still unclear and requires further exploration and taxonomic studies. At least 44 species recorded during the study are endemic to the Western Ghats, of which 16 are endemic to the Cauvery River System and two species endemic to the Kabini Catchment. A total of 20 non-native fish species were recorded from the study area, of which six species were inter-basin (within India) transplants and 14 species were exotic. Among the native species with confirmed identity, four are Critically Endangered (CR) and nine Endangered (EN) as per the IUCN Red List of Threatened Species. As a part of the study, we also extend the distribution ranges of Opsarius malabaricus, Laubuka trevori, Opsarius bendelisis, Puntius cauveriensis, Oreichthys coorgensis, Mesonoemacheilus pambarensis, Hypselobarbus curmuca, and Pseudosphromenus cupanus to the Kabini Catchment. The presence of four species, which were earlier considered to be endemic to the west flowing rivers of the Western Ghats, viz, Laubuka fasciata, Hypselobarbus kurali, Sahyadria denisonii, and Puntius mahecola, in an east flowing stream is reported and discussed. Deforestation and removal of riparian vegetation, pollution, stream channel modification, sand mining, destructive fishing practices, dams and other impoundments, monsoon fishing, and non-native species are the major threats to freshwater fishes in the region. Strategies for the conservation of aquatic ecosystems in the Kabini Catchment are discussed.

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Fish community structure of Juramento reservoir, São Francisco River basin, Minas Gerais, Brazil

Revista Brasileira de Zoologia ◽

10.1590/s0101-81752006000300031 ◽

2006 ◽

Vol 23 (3) ◽

pp. 832-840 ◽

Cited By ~ 10

Author(s):

André R. M. Silva ◽

Gilmar B. Santos ◽

Thiago Ratton

Keyword(s):

Community Structure ◽

Native Species ◽

Fish Community ◽

Fish Fauna ◽

Fish Abundance ◽

Fish Community Structure ◽

Migratory Species ◽

Wet Season ◽

Dry Period ◽

The Relationship

Many rivers in Brazil as the São Francisco (SFR) have been impounded for reservoirs construction purposes. However, there is a lack of knowledge on their fish fauna in many areas, including headwaters. The present study aimed to describe the fish community structure from Juramento reservoir, located on Juramento River, a branch of SFR basin. Six bimonthly samplings were made in four different sites. Gill and cast nets, beach seines and sieves were used to collect fish. Ecological indexes as well as the relationship between fish abundance and some limnological variables were determined. 3288 fish belonging to 33 species (16.5% of the total described for SFR basin) were captured, being 75.7% Characiformes, 18.1% Siluriformes, 3% Cyprinodontiformes and 3% Gymnotiformes. Only two non-native species, 'tamboatá' - Hoplosternum littorale (Hancock, 1828) and 'trairão' - Hoplias lacerdae Ribeiro, 1908 were found. The highest catches in number occurred in the dry period (March-October) and the lowest one in the wet season (November-February). Diversity was higher at Barragem station and richness did not vary between reservoir zones. Five migratory species were found downstream of the dam (four exclusively there), whereas only the 'curimbatá-pioa' - Prochilodus costatus Valenciennes, 1850 occurred in the reservoir. The low observed correlations between fish abundance and the limnological variables utilized suggest that the local fish fauna is not strongly affected by their variation.

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Zonation of demersal fishes off Anvers Island, western Antarctic Peninsula

Antarctic Science ◽

10.1017/s0954102015000462 ◽

2015 ◽

Vol 28 (1) ◽

pp. 44-50 ◽

Cited By ~ 6

Author(s):

Margaret O. Amsler ◽

Joseph T. Eastman ◽

Kathryn E. Smith ◽

James B. Mcclintock ◽

Hanumant Singh ◽

...

Keyword(s):

Fish Fauna ◽

Antarctic Fish ◽

Abundant Species ◽

Outer Shelf ◽

Outer Continental Shelf ◽

Absolute Abundance ◽

Inner Shelf ◽

Photographic Survey ◽

Upper Slope ◽

Demersal Fishes

AbstractThe Antarctic fish fauna from outer continental shelf/upper slope depths is under-sampled compared to that of the inner shelf, and there are limited quantitative data available on absolute abundance and taxonomic change with depth. A photographic survey of demersal fishes was conducted along a depth-gradient of 400–2099 m on the outer shelf and upper slope west of Anvers Island, Palmer Archipelago. A total of 1490 fishes were identified at least to the family level. Notothenioids composed 52.7% of absolute abundance and non-notothenioids 47.3%. The most abundant families were Nototheniidae (39.4%), followed by Macrouridae (28.9%), Zoarcidae (16.9%), and Channichthyidae (12.1%). The most abundant species were the notothenioidsLepidonotothen squamifrons(30.5%) andChionobathyscus dewitti(11.7%), and the non-notothenioidMacrourusspp. (29.5%). The absolute abundance of all fishes peaked at 400–599 m. Depths of maximum abundance were 400–599 m forL. squamifrons, 700–1499 m forMacrourusspp., and 900–1499 forC. dewitti. At 700–999 m the abundance shifted from primarily notothenioids to the non-notothenioidsMacrourusspp. and zoarcids. Fishes of the outer shelf and upper slope are not provincialized like those of the inner shelf and are circum-Antarctic.

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Knowing biodiversity: Fishes from the Guareí River basin, a tributary of the Jurumirim reservoir, Paranapanema River, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2020-1031 ◽

2020 ◽

Vol 20 (3) ◽

Author(s):

Valter M. Azevedo-Santos ◽

Fernando M. Pelicice ◽

Raoul Henry

Keyword(s):

River Basin ◽

Native Species ◽

Poecilia Reticulata ◽

Fish Fauna ◽

Fish Diversity ◽

Conservation Actions ◽

Almost All ◽

Adequate Management ◽

Management And Conservation ◽

Pimelodus Maculatus

Abstract: The Guareí River is a tributary of the Paranapanema River (Brazil), located in the upper portion of the Jurumirim Reservoir. Fish fauna studies in this watershed began in the 2000s, but they were restricted to a few waterbodies. This work conducted a broad survey of the fish fauna in tributary streams and the main channel of the Guareí River. Sampling occurred between February 2017 and November 2018 at 36 sites and using different collection methods. We captured 2,169 specimens belonging to 50 species, 16 families and 6 orders. The species accumulation curve tended to stabilize but indicated that species richness is underestimated. Almost all species are native (46); only three were non-native (Hyphessobrycon eques, Oreochromis niloticus and Poecilia reticulata) and one was undefined (Gymnotus pantanal). Among the native species, two are unknown to science (Bryconamericus aff. iheringii and Hypostomus sp. n.) and three are migratory (Leporinus friderici, Megaleporinus obtusidens and Pimelodus maculatus). In this paper, we provide images of species collected. Results indicate that the Guareí River basin is a hotspot of fish diversity in the Upper Paranapanema River, stressing the need for adequate management and conservation actions.

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Freshwater fish fauna of Hiranyakeshi River, the northern Western Ghats, India

Journal of Threatened Taxa ◽

10.11609/jott.3126.9.5.10178-10186 ◽

2017 ◽

Vol 9 (5) ◽

pp. 10178

Author(s):

Pradeep Kumkar ◽

Sanjay S. Kharat ◽

Nitin S. Sawant ◽

Unmesh Katwate ◽

Neelesh Dahanukar

Keyword(s):

Freshwater Fish ◽

Western Ghats ◽

Fish Fauna ◽

Industrial Effluents ◽

River System ◽

Iucn Red List ◽

Good Population ◽

Freshwater Fish Fauna ◽

True Diversity ◽

The Western Ghats

The freshwater fish fauna of Hiranyakeshi River, a tributary of the Krishna River System, originating in the Western Ghats of Maharashtra, was studied for a period of three years from 2013–2016. We reported 57 species belonging to seven orders, 17 families and 42 genera. Cypriniformes was the most species rich order followed by Siluriformes, while Cyprinidae was the most predominant family. At least 21 freshwater fish species found in Hiranyakeshi River are endemic to river systems originating from the Western Ghats, while nine species are endemic to the Krishna River system. The true diversity of freshwater fishes in this region, however, is still obscure because of lack of detailed taxonomic studies in this region. Of the total species, at least 11 are in the threatened and near threatened categories of the IUCN Red List and Hiranyakeshi River holds a good population of most of these species. The fish fauna in this region, however, is threatened by several stressors including invasive fishing practices, water impediment due to upcoming dams, invasive introduced species and water pollution due to agricultural runoffs and industrial effluents.

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On the freshwater fish fauna of Krishna River, Sangli District, Maharashtra, India

Journal of Threatened Taxa ◽

10.11609/jott.6281.13.8.19093-19101 ◽

2021 ◽

Vol 13 (8) ◽

pp. 19093-19101

Author(s):

Suresh M. Kumbar ◽

Shrikant S. Jadhav ◽

Swapnali B. Lad ◽

Abhijit Ghadage ◽

Satyawan S. Patil ◽

...

Keyword(s):

Freshwater Fish ◽

Threatened Species ◽

Conservation Status ◽

Fish Fauna ◽

River System ◽

Iucn Red List ◽

Cauvery River ◽

Freshwater Fish Fauna ◽

Data Deficient ◽

First Time

Freshwater fish fauna of Krishna River, Sangli district was studied from 2013 to 2017. A total of 73 species belonging to 10 orders, 22 families, and 49 genera were recorded, of which, 29 species are endemic to the Western Ghats and 11 species endemic to the Krishna River system. Labeo kontius, an endemic barb of the Cauvery River System was recorded for the first time from the Krishna River, Maharashtra. As per the IUCN Red List of Threatened Species, 54 species are assessed as ‘Least Concern’, four species as ‘Near Threatened’, three species as ‘Vulnerable’, five as ‘Endangered’, and two as ‘Data Deficient’. The conservation status of two species has not yet been assessed. Fish fauna of the Krishna River within the study area is threatened as a result of alien species, and several anthropogenic stressors such as pollution from industrial as well as agricultural sources, human settlements, and overfishing. Since, this small study area harbours 28 endemic and eight threatened species, their conservation should be given high priority.

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Diversity, potentiality, and conservation status of fish fauna in the upper Mahakam’s tributaries, East Kalimantan

Jurnal Iktiologi Indonesia ◽

10.32491/jii.v19i3.471 ◽

2019 ◽

Vol 19 (3) ◽

pp. 391

Author(s):

Jusmaldi Jusmaldi ◽

Nova Hariani ◽

Norbeta Doq

Keyword(s):

Fish Species ◽

Diversity Index ◽

Conservation Status ◽

Fish Fauna ◽

Iucn Red List ◽

Fish Diversity ◽

East Kalimantan ◽

Wiener Diversity Index ◽

Data Deficient ◽

Almost All

Diversity, potentiality and conservation status of fish fauna in upper Mahakam’s tributaries of east Kalimantan is unknown. The purposes of this study were to analysis species diversity, determine potentiality and conservation status of fish fauna in upper Mahakam’s tributaries, east Kalimantan. Fish sampling with purposive method was conducted in four tributaries, i.e Tepai River, Pahangai River, Danum Parai River, and Meraseh River for one month. Fishes were collected by several gears type. The results of this research showed that the total number of fish caught was 820 individuals; consist of 26 species, 7 families, and 4 orders. The Cyprinidae was the most dominant family found in all tributaries. The Shannon-Wiener diversity index in four tributaries were varied and ranging from 1.749-2.087. The highest fish diversity was recorded at Maraseh River followed by Pahangai River, Danum Parai River, and Tepai River. The low fish diversity was discovered at Tepai River may be due to differences in substrate type, water velocity, and water depth as compared to the Maraseh River, Pahangai River, Danum Parai River. The fish species similarity coefficient between four tributaries ranged from 0.606-0.842 and the highest dissimilarity was found between Tepai River and Danum Parai River. Almost all fishes categorized as edible fish for local consumption. Syncrossus hymenophysa and Gastromyzon lepidogaster have potential as ornamental fish. Regarding IUCN red list status, six fish species were grouped into least concern status, two species as data deficient, one species as near threatened, one species as endangered species and 16 other species were not on the list.

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