Results 81 to 90 of about 3,638 (297)

Is spawner biomass a sensitive measure of the reproductive and recruitment potential of Northeast Arctic cod?

open access: yes, 1998
The assumption that spawner biomass is directly proportional to total egg production by fish stocks underlies most spawner-recruit relationships. Despite its importance, this assumption is largely untested.
Øyvind Ulltang   +4 more
core   +1 more source

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova   +4 more
wiley   +1 more source

The sunray venus clam, Macrocallista nimbosa, exhibits asynchronous spawning

open access: yesAquaculture Reports, 2018
The reproductive cycle of the sunray venus (SRV) clam, Macrocallista nimbosa, was initially described over 40 years ago and was labeled as a “fall spawner” based on that study.
Susan Laramore   +2 more
doaj   +1 more source

Fhod3 in zebrafish supports myofibril stability during growth of embryonic skeletal muscle

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Actin filament organization in cardiomyocytes critically depends on the formin Fhod3, but a role for Fhod3 in skeletal muscle development has not yet been described. Results We demonstrate here that in zebrafish mutated for one of two fhod3 paralog genes, fhod3a, skeletal muscle of the trunk appears normal through 2 days post ...
Aubrie Russell   +3 more
wiley   +1 more source

Bionomics of a lesser known goby, Stenogobius gymnopomus (Bleeker, 1853) (Perciformes: Gobiidae) from southern Kerala, India

open access: yesJournal of Threatened Taxa, 2010
The biology of a lesser known goby, Stenogobius gymnopomus was studied from the freshwater systems of southern Kerala. Dietary analysis showed that S. gymnopomus is a euryphagous feeder and an omnivore.
S. Lekshmi, G. Prasad, S.D.R. Kumari
doaj   +1 more source

Spawner escapement of the European eel (Anguilla anguilla (L.)) from Swedish coastal waters

open access: yes, 2004
No abstracts are to be cited without prior reference to the author.The European eel (Anguilla anguilla (L.)) has been declining in both catches and glass eel recruitment during the past 40-60 years. We are now in urgent need of assessing the potential of
Jan Andersson. (18223480)   +2 more
core   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo   +3 more
wiley   +1 more source

A shining starlet: Nematostella vectensis as a model for developmental, regenerative, and comparative biology

open access: yesDevelopmental Dynamics, EarlyView.
Abstract The sea anemone, Nematostella vectensis, has been used as a model organism in developmental biology studies for many years. This estuarine species has the notable capacity to regenerate its full body plan from small pieces throughout life. Nematostella have been described as having a great degree of cellular plasticity.
Patrick A. Lewis   +3 more
wiley   +1 more source

Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)

open access: yesThe Scientific World Journal, 2012
The reproductive biology and the gonadal development cycle of the Neotropical cichlid fish, Crenicichla menezesi, is described. This species exhibits sexual dimorphism only during the spawning season.
Andréa Soares de Araújo   +3 more
doaj   +1 more source

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