Results 91 to 100 of about 3,658 (231)

Zoogeography of Elasmobranchs in the Colombian Pacific Ocean and Caribbean Sea

open access: yesNeotropical Ichthyology
In order to investigate zoogeographical patterns of the marine elasmobranch species of Colombia, species richness of the Pacific and Caribbean and their subareas (Coastal Pacific, Oceanic Pacific, Coastal Caribbean, Oceanic Caribbean) was analyzed.
Andrés Felipe Navia   +2 more
doaj   +1 more source

Assessing the sources of the fishing down marine food web process in the Argentinean-Uruguayan Common Fishing Zone

open access: yesScientia Marina, 2008
The temporal trend in the mean trophic level (mTL), fisheries-in-balance index (FIB), trophic categories landing (TrC) and landing profile (LP) of the exploited marine community (82 species) in the Argentinean-Uruguayan Common Fishing Zone (AUCFZ) were ...
Andrés J. Jaureguizar   +1 more
doaj   +1 more source

Characterization and phylogenetic analysis of the complete mitogenome of the Arctic skate Amblyraja hyperborea (Rajiformes; Rajidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
The Arctic skate Amblyraja hyperborea is common in the cold water of the Atlantic and Pacific Arctic. Its distribution and taxonomy have been open to discussion. Here, we report on the whole mitochondrial genome sequence of A.
Hong Keun Park   +3 more
doaj   +1 more source

Food habits of Steller sea lions (Eumetopias jubatus) off Oregon and northern California, 1986–2007 [PDF]

open access: yes, 2011
We described the diet of the eastern stock of Steller sea lions (Eumetopias jubatus) from 1416 scat samples collected from five sites in Oregon and northern California from 1986 through 2007.
Brown, Robin F.   +2 more
core  

An Ecomorphological Description of Amblyraja radiata (Rajiformes: Rajidae) in Waters of Eastern Canada

open access: yesDiversity
We examine the distribution, habitat association, morphometrics, meristics, and reproductive attributes of Amblyraja radiata over much of its Canadian range, Grand Banks to Arctic waters.
David W. Kulka   +3 more
doaj   +1 more source

Atlas and zoogeography of common fishes in the Bering Sea and northeastern Pacific [PDF]

open access: yes, 1988
The geographic and depth frequency distribution of 124 common demersal fish species in the northeastern Pacific were plotted from data on me at the Northwest and Alaska Fisheries Center (NWAFC), National Marine Fisheries Service.
Allen, M. James, Smith, Gary B.
core  

Diagnosi morfologica delle capsule ovigere dei condroitti mediterranei. Metodiche di studio, biologia e chiavi di determinazione specifica [PDF]

open access: yes, 2015
Le capsule ovigere possono assumere importanza fondamentale nella determinazione indiretta della specie di appartenenza. A tal fine è stata impostata una chiave dicotomica per il loro riconoscimento specifico.
Mancusi, Cecilia, Serena, Fabrizio
core  

Quaternary geographical sibling speciation and population structuring in the Eastern Atlantic skates (suborder Rajoidea) Raja clavata and R. straeleni [PDF]

open access: yes, 2011
To access the final version, follow the next link. http://www.springerlink.com/content/t1809472211lk67q/Aim Geographical (allopatric) speciation is a dynamic process whose footprints in the living world are a continuum of stages of increasing divergence.
Alessia Cariani   +10 more
core   +1 more source

Analysis of food habits of skate Rioraja agassizii (Elasmobranchii, Rajidae) from southern Brazil

open access: yesBrazilian Journal of Biology
Catches and exports of skate Rioraja agassizii place this species as “vulnerable to extinction” on the IUCN Red List; therefore, biological and ecological knowledge becomes an important instrument for its conservation control.
N. S. Motta   +4 more
doaj   +1 more source

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