Results 1 to 10 of about 1,867,141 (163)

Adaptive loss of shortwave-sensitive opsins during cartilaginous fish evolution [PDF]

Nature Communications
Cartilaginous fishes (e.g., sharks, rays, and skates) cannot see blue or violet light, potentially because they lack the shortwave-sensitive cone opsin gene (sws).
Bo Zhang, Yidong Feng, Meiqi Lv, Lei Jia, Yongguan Liao, Xiaoyan Xu, Axel Meyer, Jinsheng Sun, Guangyi Fan, Yumin Li, Yaolei Zhang, Na Zhao, Yunkai Li, Baolong Bao   +13 more
doaj   +3 more sources

Trends in the abundance of Celtic Sea demersal fish: Identifying the relative importance of fishing and environmental drivers

Frontiers in Marine Science, 2022
The Celtic Sea is a productive fishing ground, therefore identifying the relative importance of fishing and environmental factors on fish stock dynamics is crucial for developing our understanding of sustainable yields and to operationalize Ecosystem ...
Jed Kempf, Jed Kempf, Patricia Breen, Emer Rogan, David G. Reid   +4 more
doaj   +2 more sources

Remarkable diversity of vomeronasal type 2 receptor (OlfC) genes of basal ray-finned fish and its evolutionary trajectory in jawed vertebrates

Scientific Reports, 2022
The vomeronasal type 2 receptor (V2R, also called OlfC) multigene family is found in a broad range of jawed vertebrates from cartilaginous fish to tetrapods.
Zicong Zhang, Atsuhiro Sakuma, Shigehiro Kuraku, Masato Nikaido   +3 more
doaj   +2 more sources

A Deep Dive into the Globin Superfamily of Sharks, Skates, and Rays: Contrasting Patterns of Gene Loss and Retention Relative to Bony Vertebrates. [PDF]

Genome Biol Evol
The globin gene superfamily encodes oxygen-binding proteins that are present in all domains of life. Hemoglobins and myoglobins of jawed vertebrates are among the most well-studied proteins in the context of structure-function relationships and evolution
Walt HK, Hinton JA, Kuraku S, Opazo JC, Storz JF, Hoffmann FG.   +5 more
europepmc   +2 more sources

Exploited but Unevaluated: DNA Barcoding Reveals Skates and Stingrays (Chordata, Chondrichthyes) Species Landed in the Indonesian Fish Market

Ilmu Kelautan, 2016
Reliable and precise species identification is important to fisheries management and conservation. However, many rays and skates in Indonesia are currently being exploited and landed into traditional fish market without a proper identification. Therefore,
Hawis Madduppa, Rani Utari Ayuningtyas, Beginer Subhan, Dondy Arafat, Prehadi .   +4 more
doaj   +2 more sources

Synovial joints were present in the common ancestor of jawed fish but lacking in jawless fish. [PDF]

PLoS Biol
Synovial joints, characterized by reciprocally congruent and lubricated articular surfaces separated by a cavity, can simultaneously provide mobility and load bearing.
Sharma N, Haridy Y, Shubin N.
europepmc   +2 more sources

Two new species of Acanthocotyle Monticelli, 1888 (Monogenea: Acanthocotylidae), parasites of two deep-sea skates (Elasmobranchii: Rajiformes) in the South-East Pacific

Parasites & Vectors, 2019
Background Parasites of deep-sea fishes from the South-East Pacific (SPO) are poorly known. Of c.1030 species of fish found in this area, 100–150 inhabit the deep-sea (deeper than 200 m).
Luis A. Ñacari, Fabiola A. Sepúlveda, Ruben Escribano, Marcelo E. Oliva   +3 more
doaj   +2 more sources

Geographic and ecological drivers of contaminants and nutrients in commercial fish species. [PDF]

Sci Total Environ
Commercial marine fish are a major source of exposure to harmful compounds such as methylmercury (MeHg) but are also an important source of nutrients including selenium (Se) and omega-3 polyunsaturated fatty acids (ω-3).
Taylor VF, Buckman KL, Chen CY, Kraft J.
europepmc   +2 more sources

Modern specialized fishery of sea fish in the western Bering Sea

Известия ТИНРО, 2021
The shelf and continental slope of the western Bering Sea, being among the most productive areas of the Far-Eastern Seas of Russia, became exploited by commercial fishery half a century ago, after introduction of 200-mile exclusive economic zones in 1977
A. O. Zolotov
doaj   +2 more sources

Release of unwanted flat-bodied fish from a horizontal-bar grid system as revealed through comparative fishing trials and underwater video observations

Aquaculture and Fisheries, 2021
Grid systems separate fish species primarily through physical means: fish size and body shape. On Georges Bank off the northeast USA, many species of flounders are overfished, and their catch needs to be reduced.
Christopher B. Rillahan, Pingguo He
doaj   +1 more source