AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Freshwater fish12/20/2023 Berkeley and Los Angeles, University of California Press, pp. In Historical biogeography of neotropical freshwater fishes (J.S. In the Neotropical region, the most notable geological feature is the so-called South American Platform, containing the entire Amazon basin and adjacent areas, as well as the Brazilian and Guiana Shields, corresponding to approximately 62% of the South American continent, followed by the spectacular Cordillera of the Andes, approximately 7,000 km long, running along the west coast of the continent ( Albert & Reis 2011 ALBERT, J.S., BART, H.L. It is so rich that it contains one in five species of fish on the planet and approximately 10% of all living vertebrate species (Vari & Malabarba, 1998). University of California Press, Berkeley/Los Angeles/London.). Historical Biogeography of Neotropical Freshwater Fishes. The diversity and complexity of the ichthyofauna of the Neotropical inland waters is enormous, especially the South American ones, with a total number of species exceeding 7,000 and, thus, making it the richest species of continental fauna on the planet ( Albert & Reis, 2011 ALBERT, J.S. Neotropical, South American and Brazilian ichthyofaunas Peixes pequenos ictiofauna brasileira peixes ameaçados estratégias de conservação políticas de biodiversidade Finalmente, concluímos com uma síntese geral, reforçando a enorme importância da conservação dos peixes de pequeno porte e seus ambientes preferenciais, e estratégias possíveis para conservação dos mesmos. Continuamos apresentando os principais impactos antrópicos nos ambientes de peixes de pequeno porte, juntamente com aqueles sofridos pelos ambientes de peixes de portes médio a grande, seguidos dos seus respectivos efeitos deletérios. São apresentados, sob a forma de figuras, os resultados de uma análise exploratória dos dados sobre as 311 espécies de peixes ósseos de água doce contidos no Livro Vermelho da Fauna Brasileira Ameaçada de Extinção (2018), com ênfase naquelas de pequeno porte, com até 15 cm de comprimento padrão. Iniciamos o trabalho fornecendo uma descrição sintética da diversidade e estrutura filética dos peixes de água doce da Região Neotropical, com ênfase naquela do Brasil, acompanhada de uma exposição sobre onde vivem os peixes de pequeno porte e os de porte médio a grande, levando em conta como isso moldou suas respectivas biologias/ecologias, e o que as mesmas implicam para seu uso pelos seres humanos. ![]() Small fishes Brazilian ichthyofauna endangered fishes conservation strategies biodiversity policies Finally, we present a general synthesis, reinforcing the enormous importance of small fish conservation and their respective preferred environments, followed by our main conclusions, and possible conservation strategies. We continue to present the main human impacts in small fish environments, along with those suffered by medium to large fish environments, and then follow by their respective deleterious effects. We present, as figures, the results of our exploratory analysis of Brazilian Red Book of Threatened Species of Fauna (2018), focusing on the small-sized ones, with up to 15 cm of standard length. This is accompanied by a discussion about environments of fish from small to medium sized to large, taking into account how it shaped their respective biologies/ecologies, as well as what they imply for their use by humans. We don’t know about its ecology, about its migration patters.We introduce the work providing a synthetic description of the diversity and phyletic structure of freshwater fish in the Neotropical Region, especially emphasizing that of Brazil. “It’s found throughout Southeast Asia, but we have almost no information about it. Its name, even its scientific name, has changed several times in the last 20 years,” Hogan said. “The giant stingray is a very poorly understood fish. The device will send tracking information for the next year, providing unprecedented data on giant stingray behavior in Cambodia. The team that rushed to the site inserted a tagging device near the tail of the mighty fish before releasing it. So about 70% of giant freshwater fish globally are threatened with extinction, and all of the Mekong species.” They’re impacted by things like habitat fragmentation from dams, obviously impacted by overfishing. “A lot of these big fish are migratory, so they need large areas to survive. So if they’re fished before they mature, they don’t have a chance to reproduce,” Hogan said.
0 Comments
Read More
Leave a Reply. |