Results 51 to 60 of about 42,740 (228)

Annual growth of brown trout in alpine lakes is highly influenced by spring snow depth and ice-out day

open access: yesFauna Norvegica, 2023
Growth of annular zones in otoliths of brown trout from the alpine lakes Litlosvatn and Kollsvatn on western part of the Hardangervidda mountain plateau have been studied during the period 2004–2021, concurrent with recordings of accumulated snow in ...
Reidar Borgstrøm
doaj  

New species of the genus Thrissops (Teleostei, Ichthyodectiformes) in the Upper Jurassic of the Solnhofen-Archipelago (Germany) and Kimmeridge Clay (England) [PDF]

open access: yesZitteliana
Two new species of the poorly known genus Thrissops (Teleostei, Ichthyodectiformes) are described here in detail. Thrissops ettlingensis sp. nov.
Martin Ebert
doaj   +3 more sources

Apletodon gabonensis, a new species of clingfish (Teleostei: Gobiesocidae) from Gabon, eastern Atlantic Ocean [PDF]

open access: yes, 2019
The clingfish Apletodon gabonensis sp. nov. is described on the basis of seven specimens and colour photographs from Gabon, eastern Atlantic Ocean. The species is small, apparently not exceeding 20 mm total length; it is characterized by having 5 dorsal ...
Fricke, Ronald, Wirtz, Peter
core  

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina [PDF]

open access: yes, 2010
Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe ...
Lopez, Hugo Luis   +1 more
core   +3 more sources

The state of knowledge on four families of Syngnathoidei fishes (Teleostei: Syngnathiformes): Aulostomidae, Centriscidae, Fistulariidae and Solenostomidae

open access: yesJournal of Fish Biology, EarlyView.
Abstract Knowledge on the ecology and life‐history traits of coastal marine species is vital to inform their conservation and management, especially as their coastal habitats come under increasing threats. However, such data have never been collated for four of the five families in the suborder Syngnathoidei—the close relatives of the better‐studied ...
Syd J. Ascione   +3 more
wiley   +1 more source

Increased precision of growth data gained by reading multiple scales from each individual of Atlantic salmon (Salmo salar)

open access: yesFauna Norvegica, 2016
The precision of growth estimates based on fish scales often remains uncertain because of withinindividual variation in scale size and scale patterns, and also due to measurement errors.
Tormod Haraldstad   +3 more
doaj   +1 more source

Present distribution of the threatened killifish Aphanius fasciatus (Actinopterygii, Cyprinodontidae) in the Maltese Islands [PDF]

open access: yes, 2002
A survey of the nine localities from which the threatened Killifish Aphanius fasciatus has been recorded in the Maltese Islands showed that large and thriving populations exist at Salina, at the Simar and Ghadira bird sanctuaries and in reservoirs at ...
Arcidiacono, Isabella   +3 more
core  

DNA‐based identification of anadromous fishes (Alosa spp., Family Clupeidae) in stomach contents of marine groundfish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Using DNA techniques for prey identification is an emerging approach for enhancing the precision and accuracy of trophic information. We evaluated the effectiveness of DNA‐based prey identification in conjunction with visual stomach content analysis of commercially important groundfish in the nearshore Gulf of Maine, with a focus on ...
Landon P. Falke   +3 more
wiley   +1 more source

Alimentação de Isopisthus parvipinnis (Teleostei: Sciaenidae) na Baía de Santos, São Paulo Feeding of Isopisthus parvipinnis (Teleostei: Sciaenidae) from Baía de Santos, São Paulo

open access: yesBrazilian Journal of Oceanography, 1989
Conteúdos estomacais de 688 exemplares de Isopisthus parvipinnis coletados na Baía de Santos (SP) (24º00'S, 46º21'W) entre junho/76 e abril/77 foram examinados.
Lucy Satiko Hashimoto Soares
doaj   +1 more source

Environmental variables, habitat discontinuity and life history shaping the genetic structure of Pomatoschistus marmoratus [PDF]

open access: yes, 2014
Coastal lagoons are semi-isolated ecosystems exposed to wide fluctuations of environmental conditions and showing habitat fragmentation. These features may play an important role in separating species into different populations, even at small spatial
A Pérez-Ruzafa   +119 more
core   +3 more sources

Home - About - Disclaimer - Privacy