Results 101 to 110 of about 39,146 (312)

Impoundment Effects on Water Quality as Reflected in Parasitism of Reservoir Basses [PDF]

open access: yes, 1971
Our aquatic environments are rapidly becoming useless as natural resources through pollution from various sources. It is therefore necessary for us to further understand the various means which relate to this process.
Becker, David A.
core   +2 more sources

Molecular cytogenetic analyses of Epinephelus bruneus and Epinephelus moara (Perciformes, Epinephelidae) [PDF]

open access: yes, 2014
Genus Epinephelus (Perciformes, Epinephelidae), commonly known as groupers, are usually difficult in species identification for the lack and/or change of morphological specialization.
Jun Wang   +5 more
core   +1 more source

The Motion Picture: Leveraging Movement to Enhance AI Object Detection in Ecology

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
As AI methods become increasingly popular to automatically analyse ecology data, we investigate using movement information as a means to improve traditional object detection approaches (which are limited to static image information only) on over 35,000 annotated images from 1480 terrestrial, marine and freshwater locations, the most extensive ...
Ben Maslen   +4 more
wiley   +1 more source

Cytotaxonomic and evolutionary considerations about karyotipic data of fishes from the Iguaçu River Basin in South of Brazil

open access: yesBrazilian Archives of Biology and Technology, 2007
The cytogenetic data available in the literature about the ichthyofauna of the Iguaçu River basin were analyzed in this review. The ichthyofauna was characterized by the high level of endemism and by the low diversity of species.
Daniel Luis Zanella Kantek   +4 more
doaj   +1 more source

A new species of Gyrodactylus (Monogenea, Gyrodactylidae), an ectoparasite from the endemic Iranocichla hormuzensis (Teleostei, Cichlidae), the only Iranian cichlid [PDF]

open access: yes, 2012
Iranocichla hormuzensis occupies a biogeographically peculiar position. This endemic of southern Iran is the only Iranian cichlid. While it is phylogenetically related to African oreochromine members of the cichlid family, it remains unclear how it has ...
Boeger, Walter A.   +5 more
core   +3 more sources

Descripción de los complejos estructurales óseos en Helcogrammoides chilensis (Blennioidei: Tripterygiidae) de la zona central de Chile [PDF]

open access: yes, 2010
Indexación: ScieloAbstract: This paper describes the osteological features in the context of the structural complexes they build as a way of avoiding their separation from the morphofunctional wholes to which they belong.
Cancino, Cecilia   +4 more
core   +2 more sources

Sagittal otoliths description of Perciformes from Southeastern-South Brazil

open access: yesFrontiers in Marine Science, 2015
The Collection of Teleostei Fish Otoliths of the Southeastern-Southern of Brazil (COSS-Brasil) headquartered at the Oceanographic Institute, (IOUSP) contains 65 species of Perciformes included in 30 families.
César Santificetur
doaj   +1 more source

Intercolony Comparison of Diets of Western Gulls in Central California [PDF]

open access: yes, 2016
As human populations expand, they force free-ranging animals to adapt to an increasingly urban environment, resulting in changes in diets, reproductive success, and mortality.
Cassell, Anne L.
core   +1 more source

New Record of Sillago sinica (Pisces: Sillaginidae) in Korean Waters, and Re-identification of Sillago parvisquamis Previously Reported from Korea as S. sinica [PDF]

open access: yes, 2013
A single specimen of the genus Sillago, collected from Gwangyang, Korea, in May 2009, is characterized by XI first dorsal fin spines, 3 or 4 rows of melanophore pattern along the second dorsal fin membrane, and a darkish posterior margin of the caudal ...
Chung Bae Kang   +4 more
core   +1 more source

Accelerated evolution at chaperone promoters among Antarctic notothenioid fishes

open access: yesBMC Evolutionary Biology, 2019
Background Antarctic fishes of the Notothenioidei suborder constitutively upregulate multiple inducible chaperones, a highly derived adaptation that preserves proteostasis in extreme cold, and represent a system for studying the evolution of gene ...
Samuel N. Bogan, Sean P. Place
doaj   +1 more source

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