Mário Luís Orsi

ORCID: 0000-0001-9545-4985
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About
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Research Areas
  • Fish biology, ecology, and behavior
  • Fish Biology and Ecology Studies
  • Fish Ecology and Management Studies
  • Mediterranean and Iberian flora and fauna
  • Parasite Biology and Host Interactions
  • Ichthyology and Marine Biology
  • Scarabaeidae Beetle Taxonomy and Biogeography
  • Wildlife Ecology and Conservation
  • Date Palm Research Studies
  • Archaeological and Historical Studies
  • Religious and Theological Studies
  • Avian ecology and behavior
  • Plant Pathogens and Fungal Diseases
  • Botanical Research and Applications
  • Aquaculture Nutrition and Growth
  • Plant and soil sciences
  • Mosquito-borne diseases and control
  • Language, Linguistics, Cultural Analysis
  • Identification and Quantification in Food
  • Lepidoptera: Biology and Taxonomy
  • Aquatic Ecosystems and Biodiversity
  • Plant and animal studies
  • Amphibian and Reptile Biology
  • Cephalopods and Marine Biology
  • Plant Diversity and Evolution

Universidade Estadual de Londrina
2016-2025

Universidade Federal do Rio de Janeiro
2020-2024

Universidade Federal de Santa Catarina
2024

Abstract Neotropical freshwater fishes are the most diverse on planet (>5,500 species), although nations in Latin America have been negligent regarding their conservation. National policies historically encouraged unsustainable practices, and recent decades witnessed a sharp increase harmful activities. Our aim with this review was to expose situation illustrate how national constitute main threat fish biodiversity. We explain that devastating, pervasive systemic threats rooted official...

10.1111/faf.12228 article EN Fish and Fisheries 2017-05-24

Abstract As Brazil undergoes rapid economic growth, short‐sighted political decisions can threaten biological diversity and ecosystem services. Recently, the Brazilian Congress proposed a law to allow rearing of nonnative fish in aquaculture cages any hydroelectric reservoir country. This initiative may “naturalize by decree” some worst invasive species world (e.g., carps tilapias) as means developing inland economy. The spread facilities will create opportunities for invasions occur...

10.1111/conl.12029 article EN Conservation Letters 2013-04-12

10.1007/s00267-021-01513-7 article EN Environmental Management 2021-08-02

Abstract Quantifying and classifying ichthyoplankton is one of the most effective ways monitoring recruitment process in fishes. However, correctly identifying fish based on morphological characters extremely difficult, especially early stages development. We examined from tributaries reservoirs along middle stretch Paranapanema River, areas impacted by hydroelectric projects Neotropics. Matching DNA sequences COI gene (628–648 bp) allowed us to identify 99.25% 536 samples eggs (293) larvae...

10.1111/1755-0998.12385 article EN Molecular Ecology Resources 2015-02-06

In Brazil, the introduction of non-native fish is commonplace, and only existing measure to address this problem normative approach (i.e., laws inspections). However, has failed control or prevent introductions because enforcing in a country size continent, where inspections monitoring are minimal non-existent, difficult. addition, society generally unaware issue. More effective actions complementary preventive measures urgently needed, most promising change human behavior via educational...

10.1016/j.ncon.2015.06.002 article EN cc-by-nc-nd Natureza & Conservação 2015-07-01

Here we extend a discussion initiated by Toussaint et al. (Sci Rep 6:22125, 2016) concerning the relationship between global patterns of freshwater fish functional diversity (FD) and its vulnerability to human impacts. Based on set morphological traits, they concluded that Neotropical fishes have highest FD, but low given high levels redundancy. This conclusion implies conservation efforts for should emphasize temperate regions. perspective is risky, because al.'s study seriously...

10.1007/s10531-016-1258-8 article EN cc-by Biodiversity and Conservation 2016-11-19

Non-native species are a major driver of biodiversity loss. Aquaculture activities play key role in introductions, including the escape fishes from fish farm facilities. Here, impact flooding due to El Niño rains 2015/2016 Lower and Middle Paranapanema River basin, southern Brazil, was investigated by evaluating escapes 12 farms. The resulted approximately 1.14 million into river, encompassing 21 three hybrids. were most abundant escapees, especially Oreochromisniloticus (Linnaeus, 1758)...

10.3897/zoologia.35.e14638 article EN cc-by Zoologia (Curitiba) 2018-05-23

Abstract Brazil is a megadiverse country and participant of fundamental environmental agreements for biodiversity conservation. However, the internal politics cultures that affect negatively ecological integrity in Brazilian freshwater need to be improved on condition sustainable management. Scientific community, government stakeholders are constant conflicts goals. Meanwhile, current model aquaculture shows problems impact due lack appropriated planning legislation aquatic biota. The...

10.1111/raq.12393 article EN Reviews in Aquaculture 2019-11-06

Fish species introduction by accidental escape from aquaculture in the high Paraná River Basin.Species composition and abundance of fishes that escaped facilities during catastrophic flooding Paranapanema Tibagi rivers, January, 1997 was estimated.ln ali, 1,292,000 adult individuais belonging to II I hybrid, were introduced into these rivers; only one native .The disaster is attributed illegal occupation ofthe river banks, non observance standard measures designed avoid escapement.

10.1590/s0101-81751999000200020 article EN Revista Brasileira de Zoologia 1999-06-01

ABSTRACT Informal sales of large-bodied non-native aquarium fishes (known as “tankbusters”) is increasing among Brazilian hobbyists. In this study, we surveyed non-regulated trade on Facebook® from May 2012 to September 2016, systematically collecting information about the available for trading: species, family, common/scientific names, native range, juvenile length, behavior, number specimens in five geographical regions Brazil. We also assessed invasion risk most frequently sold species...

10.1590/1982-0224-20170033 article EN cc-by Neotropical Ichthyology 2017-12-16

The changes in the fish assemblage of Capivara Reservoir, Brazil, were assessed over a 20 year period. Of 50 native fishes present initial samples, 27 no longer final but there had been an addition 11 invasive fishes, suggesting occurrence substantial shifts diversity and abundance.

10.1111/jfb.12392 article EN Journal of Fish Biology 2014-04-30

Abstract Biological invasions are among the main threats to global biodiversity and present potential disrupt host-parasite dynamics. In Brazil, scientific reports of occurrence Amazonian fish ‘pirarucu’ ( Arapaima gigas ) in upper Paraná River basin, São Paulo state, were made 2015. However, effects its introduction still unknown, including those associated relationships. As part our studies on possible A. into this parasites from eyes 60 specimens evaluated. We reported Austrodiplostomum...

10.1017/s0022149x25000045 article EN Journal of Helminthology 2025-01-01
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