Results 31 to 40 of about 476 (125)

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data

Cladistics, Volume 41, Issue 3, Page 264-282, June 2025.
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Philippe Vieira Alves, Reinaldo José da Silva, Tomáš Scholz, Alain de Chambrier, José Luis Luque, Anastasiia Duchenko, Daniel Janies, Denis Jacob Machado   +7 more
wiley   +1 more source

THE NEEDS AND IMPORTANCE OF FATTY ACIDS IN THE NUTRITION OF FISH [PDF]

Croatian Journal of Fisheries, 1996
According to the needs for the essential fatty acids, the fish can be classified in three groups: For the fish from Salrrwnidae family (Oncorhynhcus kisutch, O. keta, O. nerka and O. tshawytscha) the essential is 18: 3 in the quantity of 1%.
Ivan Bogut, Anđelko Opačak
doaj  

Comparative Diets of Invasive Blue Catfish: Differences Across Rivers and Ontogenetic Stages

Ecology of Freshwater Fish, Volume 34, Issue 2, April 2025.
ABSTRACT Blue Catfish (Ictalurus furcatus) are an invasive species with expanding populations in freshwater systems, posing significant ecological challenges to native fauna. To assess their potential impacts in diverse aquatic ecosystems, we examined and compared the diets of non‐native Blue Catfish from four rivers in Georgia, USA, two of which drain
Victoria D. Davis, Peter C. Sakaris, Timothy F. Bonvechio, Peter D. Hazelton, Martin J. Hamel   +4 more
wiley   +1 more source

An annotated distributional checklist of exotic freshwater fishes from the Baja California Peninsula, Mexico Lista comentada sobre la distribución de peces dulceacuícolas exóticos de la península de Baja California, México

Revista Mexicana de Biodiversidad, 2012
We documented the distributional status of 27 exotic fish species in the inland waters of the Baja California Peninsula, Mexico, based on voucher specimens collected from 122 sites between 1977 and 2010, and on published records.
Gorgonio Ruiz-Campos, Salvador Contreras-Balderas, Asunción Andreu-Soler, Alejandro Varela-Romero, Ernesto Campos   +4 more
doaj  

Spatial and Ontogenetic Patterns in the Trophic Ecology of Two Predatory Fishes in a Large River

Ecology of Freshwater Fish, Volume 34, Issue 1, January 2025.
ABSTRACT Fishes use a variety of physical and biological resources that shift ontogenetically, seasonally and spatially. Quantifying what resources such as prey are required for persistence can improve understanding of ecological needs of fishes and riverine macrosystem functioning.
Shaley A. Valentine, Gregory W. Whitledge   +1 more
wiley   +1 more source

New Japanese Record of Henneguya postexilis (Cnidaria: Myxobolidae) from Gills of Alien Channel Catfish Ictalurus punctatus (Siluriformes: Ictaluridae) in Japan

Species Diversity
Henneguya postexilis Minchew, 1977 (Cnidaria: Myxobolidae) is described as a novel record for Japan. It was found in the gills of non-native Ictalurus punctatus (Rafinesque, 1818) (Siluriformes: Ictaluridae), which were collected from the Omoi River, a ...
Masato Nitta, Takanori Ishikawa
doaj   +1 more source

Taxonomic Blind Spots: A Limitation of Environmental DNA Metabarcoding‐Based Detection for Canadian Freshwater Fishes

Environmental DNA, Volume 6, Issue 6, November–December 2024.
Taxonomic blind spots, defined as consistent false negatives for specific taxa despite known presence, reduce corroboration with conventional surveys and can limit the uptake of eDNA metabarcoding for biomonitoring. To explore current taxonomic blind spots, a multiproject empirical dataset was compiled to evaluate the taxonomic coverage of eDNA ...
Kevin C. Morey, Erika Myler, Robert Hanner, Gerald Tetreault   +3 more
wiley   +1 more source

Efectos de la invasión de salmónidos en ríos y lagos de Chile

Ecosistemas, 2015
Sudamérica es uno de los seis “hotspots” globales de invasión de peces de agua dulce y Chile no es la excepción. Actualmente existen 27 especies introducidas de peces en ecosistemas de aguas continentales. Veinticinco (25) de las 27 exóticas pertenecen a
E. Habit, J. González, J. Ortiz-Sandoval, A. Elgueta, C. Sobenes   +4 more
doaj  

Hyperostosis in Fishes: An Update With New Species Records

Journal of Morphology, Volume 285, Issue 11, November 2024.
Hyperostosis is an enigmatic dimension of diversity in the anatomy of fishes. This excessive overgrowth of bone is natural in origin, occurs almost exclusively in marine fishes, is generally species‐specific, and becomes fully developed only in large individuals. We document hyperostosis in 35 families, 89 genera, and 153 species.
William F. Smith‐Vaniz, Julia Klein, Harald Ahnelt   +2 more
wiley   +1 more source

Assessing the direct and indirect effects of bigheaded carp (Hypophthalmichthys spp.) on freshwater food webs: A meta‐analysis

Freshwater Biology, Volume 69, Issue 10, Page 1399-1407, October 2024.
Abstract The rapid growth of aquaculture over the last century has led to the widespread introduction of aquatic species to freshwater environments. Bighead carp (Cyprinidae: Hypophthalmichthys nobilis) and silver carp (Cyprinidae: Hypophthalmichthys molitrix), collectively referred to as bigheaded carp, are among the top finfishes produced in ...
Jillian M. Hochstrasser, Scott F. Collins   +1 more
wiley   +1 more source