African–South American Freshwater Fish Clades and Continental Drift:

2018 ◽  
pp. 156-199 ◽  
Author(s):  
John G. Lundberg
Keyword(s):  
Freshwater Fish ◽  
Continental Drift ◽  
South American

scholarly journals Candidate Species for Florida Aquaculture: Arapaima Arapaima gigas

EDIS ◽  
2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Cortney Ohs ◽  
Jeffrey Hill ◽  
Sarah Wright ◽  
H. Mae Giddings ◽  
Allison Durland Donahou
Keyword(s):  
Freshwater Fish ◽  
South Florida ◽  
South American ◽  
Culture Methods ◽  
Stage Of Development ◽  
Unique Biology ◽  
Arapaima Gigas ◽  
Candidate Species ◽  
Specific Culture

Arapaima Arapaima gigas, also known as paiche and pirarucu, is a large South American freshwater fish with unique biology, favorable aquaculture characteristics, and potential for production in south Florida. This publication provides Arapaima gigas biology, specific culture methods known for each stage of development, and information about diseases and parasites, markets, and the laws associated with this species to potential Florida producers.

Area, Continental Drift and Mammalian Diversity

Paleobiology ◽  
1975 ◽  
Vol 1 (2) ◽  
pp. 189-194 ◽  
Author(s):  
Karl W. Flessa
Keyword(s):  
Plate Tectonics ◽  
Continental Drift ◽  
Quantitative Modeling ◽  
South American ◽  
Land Bridge ◽  
Area Effect ◽  
Mammalian Faunas ◽  
Continental Area ◽  
North And South

Mammalian generic, familial, and ordinal diversities correlate significantly with continental area. The area effect is similar in form to that shown for true islands: S = kAz, where S is the diversity, A is the area, and k and z are fitted constants. For mammalian genera and continental area, z equals 0.33, for families, z equals 0.23, and for orders, z equals 0.13.The area effect permits quantitative modeling of extinction due to biotic competition between previously isolated faunas. The Late Cenozoic extinction of North and South American mammalian faunas following the rise of the Panamanian land bridge is overestimated by seven families. The overestimate may result from assumptions of complete biotic interchange and universal competition. The role of plate tectonics in regulating diversity may be extensively modified by regional environmental conditions.

scholarly journals Helminth parasites of freshwater fish from Central America

Zootaxa ◽  
2008 ◽  
Vol 1915 (1) ◽  
Author(s):  
GUILLERMO SALGADO-MALDONADO
Keyword(s):  
South America ◽  
Freshwater Fish ◽  
Central America ◽  
Current Knowledge ◽  
Taxonomic Composition ◽  
Parasite Fauna ◽  
Helminth Species ◽  
Helminth Parasite ◽  
South American ◽  
Helminth Parasites

This study is a compilation of current knowledge of the taxonomic composition and distribution of the helminth parasites of freshwater fish in Central America. A list of 111 adult helminth species up to day reported from 17 freshwater fish families from Central America was compiled. The data show a helminth parasite fauna in freshwater fish that is typical to the region. One hundred and two of the known helminth species are endemic to the area, 32 of which can be derived from South American genera. Nematodes were the most abundant group, followed by monogeneans and trematodes. None of the 29 helminth families recorded to date is exclusive to Central America, while 16 of the 65 recorded genera have been only recorded from this area. Twenty three of these genera are South American lineages. The data suggest that helminth parasites of freshwater fish from Central America constitute a recent fauna derived mainly from South America but not found there.

Ascaridoid nematodes of amphibians and reptiles: Goezia

1978 ◽  
Vol 52 (1) ◽  
pp. 91-98 ◽  
Author(s):  
J. F. A. Sprent
Keyword(s):  
New Species ◽  
Freshwater Fish ◽  
East Coast ◽  
South American ◽  
Sea Snakes ◽  
Crocodylus Porosus ◽  
Cape York ◽  
Host Relationships ◽  
Australian Freshwater ◽  
A New Species

ABSTRACTA new species in the genus Goezia is described from aquatic reptiles of the northern shores of Australia, west of Cape York Peninsula. It was collected from Crocodylus porosus, from a file snake (Achrochordus granulatus), and from sea snakes (Lapemis hardwickii, Enhydrina schistosa, Hydrophis elegans, and H. caerulescens). The new species is compared with G. fluviatilis from Australian freshwater fish, with G. minuta from marine fish of the east coast of North America, and with G. spinulosa and G. intermedia from South American freshwater fish. The host-relationships of the genus are discussed.

scholarly journals Three genomes of Osteoglossidae shed light on ancient teleost evolution

2020 ◽  
Author(s):  
Shijie Hao ◽  
Kai Han ◽  
Lingfeng Meng ◽  
Xiaoyun Huang ◽  
Chengcheng Shi ◽  
...  
Keyword(s):  
Continental Drift ◽  
Evolutionary Process ◽  
Gene Families ◽  
South American ◽  
Arapaima Gigas ◽  
Basal Clade ◽  
History Of ◽  
Evolution Study ◽  
Comparative Genomics Analysis ◽  
Or Genes

AbstractOsteoglossiformes is a basal clade of teleost, originated from late Jurassic and had seen the process of continental drift. The genomic differences amongst Osteoglossiformes species should reflect the unique evolve history of that time. Here, we presented the chromosome-level genome of Heterotis niloticus which is the only omnivore species of Osteoglossidae spreading in Africa. Together with other two Osteoglossidae species genomes of Arapaima gigas and Scleropages formosus which spread in South America and Australia respectively, we found great evolutionary differences in gene families and transposable elements. Phylogenetic analysis showed that the ancestor of H. niloticus and A. gigas diverged with S. formosus at ∼106.1Mya, consistent with the time of Afro-South American drift and A. gigas speciated from the ancestor of H. niloticus and A. gigas at ∼59.2 Mya, consistent with the separation of Eurasia and North American continents. And we proposed the evolutionary traces of Osteoglossidae species based on comparative genomics analysis and their living geographic habitats. We identified loss of LINEs and LTRs, fast evolutionary rate in parallel to fast pseudogenization rate in H. niloticus and A. gigas comparing to S. formosus during the evolutionary process. We also found notable OR genes contraction in H. niloticus, which might be related to the diet transition. Taken together, we reconstructed the evolutionary process of Osteoglossidae using three representative genomes, providing a possible clue for biogeographic and evolution study of ancient teleost clade.

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