Works on Fish biology, ecology, and behavior
Published research works tagged with the topic “Fish biology, ecology, and behavior”.
224 works
Showing 151 to 200 of 224 works
Phylogeny and biogeography of Asthenopodinae with a revision of Asthenopus, reinstatement of Asthenopodes, and the desc…
The Neotropical species of Asthenopodinae are revised in a formal phylogenetic context. The five known species of Asthenopus Eaton, 1871, together with other five new species were…
Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence …
Artemesia longinaris is a marine shrimp endemic to the southwestern Atlantic and distributed from Atafona, Rio de Janeiro (Brazil) to Rawson, Chubut (Argentina). In recent years, …
Morphological variation of freshwater crabs Zilchiopsis collastinensis and Trichodactylus borellianus (Decapoda, Trich…
Measures of hydrologic connectivity have been used extensively to describe spatial connections in riverine landscapes. Hydrologic fluctuations constitute an important macrofactor …
Relative growth and morphological sexual maturity size of the freshwater crab Trichodactylus borellianus (Crustacea, De…
The relative growth of a number of morphological dimensions of the South American freshwater crab Trichodactylus borellianus (Trichodactylidae) were compared and related to sexual…
Molecular and morphological differentiation between two Miocene-divergent lineages of Amazonian shrimps, with the descr…
Palaemon carteri (Gordon, 1935) and P. ivonicus (Holthuis, 1950) are morphologically similar species of South American freshwater shrimps. Past studies have questioned the taxonom…
A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colomb…
Hemibrycon sanjuanensis, new species, is described from the upper San Juan River drainage, Pacific versant, Colombia. It is distinguished from H. boquiae, H. brevispini, H. cairoe…
A new species of redfin (Teleostei, Cyprinidae, Pseudobarbus) from the Verlorenvlei River system, South Africa
Pseudobarbus verloreni, a new species, is described from material collected in the Verlorenvlei River system on the west coast of South Africa. It differs from its congeners (exce…
Neoplecostomus doceensis: a new loricariid species (Teleostei, Siluriformes) from the rio Doce basin and comments about…
A new species of Neoplecostomus is described from the rio Doce basin representing the first species of this genus in the basin. The new species is distinguished from its congeners…
The description of a new species of the Neotropical land crab genus Gecarcinus Leach, 1814 (Crustacea, Decapoda, Brachy…
In this contribution a new species of the land crab genus Gecarcinus Leach, 1814, from the Neotropical Pacific coast of South America is described and illustrated. In addition to …
The zoological collections of Portuguese oceanographic campaigns in former colonial territories
The Missão de Biologia Marítima (Lisboa, Portugal) and its successor institutions, were responsible for conducting oceanographic campaigns in former Portuguese colonies during the…
Distribution and first insight into the reproductive biology of two species of the genus Rhamdia (Siluriformes, Heptapt…
Distribution data and reproductive biology of freshwater catfishes of the genus Rhamdia remain insufficiently explored, limiting our knowledge of these ecologically, nutritionally…
New records on the distribution of the Mexclapique, Girardinichthys viviparus (Bustamante, 1837) (Cyprinodontiformes, G…
The “Mexclapique” Girardinichthys viviparus, is a goodeid endemic to the Valley of Mexico basin. This species is endangered following habitat alterations due to urbanization and p…
The Trichoptera of Panama XXVII. The third benchmark—a waypoint to the future
The flora and fauna of Panama is species-rich due to its location and topography, and the resulting diversity of microclimates and habitats. The last two summaries (benchmarks) of…
The Trichoptera of Panama. XXVI. Status of the genus Protoptila (Trichoptera, Glossosomatidae)
The caddisfly genus Protoptila (Trichoptera, Glossosomatidae) in Panama is currently represented by 15 species, including four endemic species and 11 species also found in Costa R…
A case of leucosis in Heptapterus mustelinus (Siluriformes, Heptapteridae) among populations of streams in southern Br…
Fish populations in environments with a high degree of geographic isolation may be prone to mutations expressed in the phenotypes. These mutations may be related to color pattern,…
Gauchergasilus euripedesi (Copepoda, Ergasilidae) parasitizing different species of fish from two environments in south…
The parasitic copepod Gauchergasilus euripedesi (Montú, 1980) Montú & Boxshall, 2002 was described from plankton samples and specimens found in four fish species from the estuarin…
An update of the amazon prawn (Macrobrachium amazonicum) distribution in the low course of the São Francisco river (nor…
The prawn Macrobrachium amazonicum has been considered a successful colonizing species of freshwater environments beyond its native range; however, information on the distribution…
A new record of the exotic Guapote jaguar, Parachromis managuensis (Günther, 1867) (Cichliformes, Cichlidae) in a tropi…
The presence of Parachromis managuensis has been reported for the first time in the Tres Palos Lagoon, State of Guerrero, on the coastal Lagoon of the Mexican Pacific slope. Two s…
Geographic distribution and conservation of seasonal killifishes (Cyprinodontiformes, Rivulidae) from the Mid-Northeast…
The Rivulidae fish family, which includes Neotropical seasonal killifishes, is one of the most diverse taxonomic groups in the aquatic systems of Caatinga in Brazil. Cynolebias an…
Diet and foraging behavior of Ageneiosus inermis (Teleostei, Auchenipteridae)
Ageneiosus inermis is the largest species of the family Auchenipteridae (Siluriformes) and has a primarily piscivorous diet, although no comprehensive data are available on the ha…
Novos registros de Sphaenorhynchus canga (Amphibia, Anura, Hylidae) no Quadrilátero Ferrífero em Minas Gerais, Sudeste …
A perereca Sphaenorhynchus canga foi recentemente descrita, com distribuição geográfica restrita, na borda leste do Quadrilátero Ferrífero em Minas Gerais. A espécie foi originalm…
First report of Rhabdochona acuminata (Nematoda, Rhabdochonidae) in Astyanax aff. fasciatus (Characiformes, Characidae)…
Specimens of Rhabdochona (Rhabdochona) acuminata (Molin, 1860) were collected in Astyanax aff. fasciatus (Cuvier, 1819) from Lake Guaíba, municipalities of Guaíba (30°08.28'S, 51°…
Alimentação de Auchenipterichthys punctatus (Siluriformes, Auchenipteridae) em lagos do rio Cuiuni, Amazonas, Brasil
Auchenipterichthys punctatus é uma espécie de peixe muito abundante durante o período de águas baixas no rio Cuiuni, sendo objetivo deste estudo investigar a alimentação de A. pun…
An inconvenient routine: introduction, establishment and spread of new non-native fishes in the Paraíba do Sul River ba…
This study updates the introduction of non-native fishes Nannostomus beckfordi, Aphyocharax anisitsi, Knodus moenkhausii, Moenkhausia costae, Ancistrus multispinis and Astronotus …
Invasion alert: new record of the exotic Gambusia holbrooki Girard, 1859 in the Puna Austral region, Northwestern of Ar…
We report the first record of Gambusia holbrooki Girard, 1859 at elevations above 1,615 m in the Puna Austral, Provincia Catamarca, Argentina. This fish was introduced by intentio…
Diversity and space-time dynamics of fish assemblages in a coastal lagoon, western Atlantic
The knowledge of the temporal and spatial dynamics in the composition of fish fauna makes it possible to identify patterns of occupation of ecosystems, providing a basis for evalu…
DNA metabarcoding of Neotropical ichthyoplankton: Enabling high accuracy with lower cost
Knowledge of ichthyoplankton dynamics is extremely important for conservation management as it can provide information about preferential spawning sites, reproductive period, migr…
Species without borders: the diversification of giant danios in Sri Lanka (Teleostei, Danionidae, Devario)
The five species of Devario in Sri Lanka form a monophyletic insular diversification. Devario memorialis, D. micronema and D. pathirana are specialists that inhabit rainforest foo…
A new species of Hoplias malabaricus species complex (Characiformes, Erythrinidae) from Northeastern Brazil
A new species of Hoplias malabaricus species complex is herein described from the Munim River Basin, Maranhão state, Northeastern of Brazil. Hoplias cazumba differs from its conge…
Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycte…
Mountainous regions typically host a great diversity of small-ranged species, often contributing for delineating world biodiversity hotspots. Species of trichomycterine catfishes …
Rediscovery of a thought to be extinct beauty: a second chance for conservation
Some rivulids are specialized to live in temporary or ephemeral water bodies, and for this reason they are known as annual or seasonal fishes. The fact that these seasonal species…
First insight into freshwater fish assemblages in the western part of the Endau-Rompin landscape, Malaysia
In Malaysia, our knowledge of freshwater ecosystem and its aquatic inhabitants, particularly freshwater fish, remains inadequate, even in protected regions. It is essential to und…
Diet, sexual dimorphism, and fertility aspects of Melanophryniscus fulvoguttatus (Mertens, 1937) from Central-East Braz…
Melanophryniscus fulvoguttatus is a small toad that inhabits the Cerrado, Atlantic Forest, and humid Chaco of South America. Due to its aposematic coloration and behavior, it is a…
Opening a turtle graveyard: Size distribution of dead individuals of Phrynops geoffroanus (Pleurodira, Chelidae)
Aquatic animals, such as freshwater turtles, are much dependent on the water bodies where they live. Here we describe the size distribution of a population of Phrynops geoffroanus…
New and poorly known “araphid” diatom species (Bacillariophyta) from regions near Lake Titicaca, South America and a d…
Based on two Andean Altiplano samples and on light and scanning electron microscopy analyses, we present six new species of “araphid” diatoms in the genus Pseudostaurosira, P. aed…
A new Pseudophoxinus (Teleostei, Cyprinidae) species from Asi River Drainage (Turkey)
Pseudophoxinus turani sp. n. is described from the İncesu Spring (Hassa-Hatay) drainage of Asi River, Turkey. It is distinguished from other Eastern Mediterranean Region Pseudopho…
A new Liopropoma sea bass (Serranidae, Epinephelinae, Liopropomini) from deep reefs off Curaçao, southern Caribbean, wi…
Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liop…
New species of the Pseudancistrus barbatus group (Siluriformes, Loricariidae) with comments on its biogeography and dis…
A new species of Pseudancistrus is described from the Tapajós Basin, and assigned to the P. barbatus group byhypertrophied odontodes along the snout and lacking evertible cheek pl…
Petrocephalus boboto and Petrocephalus arnegardi, two new species of African electric fish (Osteoglossomorpha, Mormyrid…
A specimen of the African weakly electric fish genus Petrocephalus (Osteoglossomorpha, Mormyridae) collected in the Congo River at Yangambi, Orientale Province, Democratic Republi…
Discovery of an alien species of mayfly in South America (Ephemeroptera)
Despite its wide, almost worldwide distribution, the mayfly genusCloeonLeach, 1815 (Ephemeroptera: Baetidae) is restricted in the Western hemisphere to North America, where a sing…
Description of two new species of Hisonotus Eigenmann & Eigenmann, 1889 (Ostariophysi, Loricariidae) from the rio Paran…
Two new species of Hisonotus are described from the rio Paraná-Paraguay basin in Brazil. The most remarkable features of the new species are the odontodes forming longitudinally a…
On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)
During the study of rotifers collected in Eastern DR Congo, we rediscovered specimens that correspond to Monostyla dorsicornuta Van Oye, 1926. This species, which we redescribe, h…
Taxonomic revision of the genus Carasobarbus Karaman, 1971 (Actinopterygii, Cyprinidae)
Representatives of the fish genus Carasobarbus Karaman, 1971 (Actinopterygii: Cyprinidae) from the Middle East and North Africa were previously placed in 14 different genus-group …
First record of Clausidium (Copepoda, Clausidiidae) from Brazil: a new species associated with ghost shrimps Neocallich…
A new clausidiid copepod was found living in galleries of ghost shrimps Neocallichirus grandimana (Gibbes, 1850) in Natal, Brazil. The new species resembles to Clausidium senegale…
Further revision of the genus Megalopsalis (Opiliones, Neopilionidae), with the description of seven new species
The Australian harvestmen genus Megalopsalis (Neopilionidae: Enantiobuninae) is recognised as a senior synonym of the genera Spinicrus and Hypomegalopsalis, and seven new species …
Two new species and a new subgenus of toothed Brachyhypopomus electric knifefishes (Gymnotiformes, Hypopomidae) from th…
We describe two new, closely related species of toothed Brachyhypopomus (Hypopomidae: Gymnotiformes: Teleostei) from the central Amazon basin and create a new subgenus for them. O…
Pareiorhina hyptiorhachis, a new catfish species from Rio Paraíba do Sul basin, southeastern Brazil (Siluriformes, Lori…
Pareiorhina hyptiorhachis is described from Ribeirão Fernandes and Rio Pomba, Rio Paraíba do Sul basin, Brazil. The new species is distinguished from its congeners (P. brachyrhync…
The Collothecidae (Rotifera, Collothecacea) of Thailand, with the description of a new species and an illustrated key t…
Following previous reports indicating a remarkable high diversity of sessile rotifers in Southeast Asian freshwaters, we report on an extensive study of the diversity of Collothec…
Description of three new Triaenodes species from Fiji (Trichoptera, Leptoceridae)
The following three new species are illustrated and described from Fiji: Triaenodes rebellus Eriksson & Johanson, sp. n., Triaenodes oscitus Müller & Johanson, sp. n., and Triaeno…
Profundulus kreiseri, a new species of Profundulidae (Teleostei, Cyprinodontiformes) from northwestern Honduras
A new species of Profundulus, P. kreiseri (Cyprinodontiformes: Profundulidae), is described from the Chamelecón and Ulúa Rivers in the northwestern Honduran highlands. Based on a …