Results 161 to 170 of about 76,747 (382)

Flavobacterium oreochromis From Farmed Tambaqui (Colossoma macropomum): Insights Into Genetic, Phenotypic and Pathogenic Diversity

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Flavobacterium spp. are the etiological agents of columnaris disease. Although there is evidence that columnaris poses a significant threat to the farming of tambaqui (Colossoma macropomum), there remains a large gap in understanding the genetic and phenotypic diversities of columnaris‐causing bacteria (CCB).
Elcimara Cardoso Pereira   +8 more
wiley   +1 more source

The development and evolutionary origin of barbels in the channel catfish Ictalurus punctatus (Siluriformes: Ictaluridae) [PDF]

open access: yes, 2011
Understanding the origin of morphological novelties is an important goal of evolutionary developmental biology. In pursuit of this goal, we have examined the developmental genetic mechanisms that underlie growth and patterning in a largely overlooked ...
Hawkins, Michael Brent
core   +2 more sources

Paracamallanus cyathopharynx (Baylis, 1923) Infection in Clarias gariepinus (Burchell, 1822): Linking the Morphology of Wound‐Inflicting Structures to Histopathology

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Paracamallanus cyathopharynx (Baylis, 1923) specimens were collected from the rectum of the African sharptooth catfish, Clarias gariepinus in Lake Heritage, Crocodile River in the Limpopo River system and in the Vaal River below the Vaal Dam. Attached and unattached parasites were studied with light and scanning electron microscopy along with ...
Thabo Kenneth Matea   +1 more
wiley   +1 more source

MANAGING FISHERIES DEVELOPMENT IN MAHARASHTRA [PDF]

open access: yes
Maharashtra has 720 km. of coastline with the continental shelf area of 111512 sq. km. There are as many as 32 inland varieties of fish produced in this state.
Shah, Deepak
core   +1 more source

Frozen and smoke-dried fish marketing in Akure metropolis [PDF]

open access: yes, 2009
A survey of the prices of fish in two major markets in Akure was conducted between October and December 2008 to compare the prices of the imported fishes and that of the farmed catfishes and tilapias.
Nwanna, L.C., Ogunsuyi, O.A.
core  

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

open access: yesJournal of Anatomy, EarlyView.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek   +2 more
wiley   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy