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LENGTH-AT-AGE [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-05-16

English

Subject field(s)
  • Statistics
  • Commercial Fishing
  • Collaboration with the FAO
CONT

Variation in length at age was simulated with platoons of different [fish] lengths within each year-class.... Determination of mean lengths at age is an important task in many fishery investigations. Such data are often used to characterize growth and can lead to models of growth with age or studies of density-independent and density-dependent effects of environmental conditions on population structure and dynamics.

French

Domaine(s)
  • Statistique
  • Pêche commerciale
  • Collaboration avec la FAO

Spanish

Save record 1

Record 2 2022-03-07

English

Subject field(s)
  • Collaboration with the FAO
  • Statistics
  • Commercial Fishing

French

Domaine(s)
  • Collaboration avec la FAO
  • Statistique
  • Pêche commerciale
DEF

Comparaison des longueurs de poissons d'un même âge.

Spanish

Save record 2

Record 3 2021-12-21

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Fish
DEF

A clear variation in the angle of the corpus calcareum [that] corresponds to a growth rate acceleration in [fish].

CONT

Recent declines in abundance of skates... have heightened the need for validated age and growth estimates... skate vertebral centra collected seasonally... were sectioned using a mass processing method, then used to reconstruct growth in each species.... Total counts were obtained by summing visible and estimated band counts. Growth curves were then fitted to all length-at-age data including sections deemed unreadable near the focus. The location of the birth band(BB) in each species was confirmed by comparing suspected birth band radius(BR) measurements with [vertebral radius(VR) ] measurements of available late-term embryos... and/or early young-of-the-year fish... Regressions between VR and [total length] for each species, along with published hatch lengths, were also used to verify the location of the BB along the corpus calcareum of each section...

OBS

Birthmarks are usually represented by an angle change along the centrum face of whole vertebrae or along [the] intermedialia-corpus calcareum interface with an associated ring on the corpus calcareum in sectioned centra, but this feature may not be distinct in either.

Key term(s)
  • birthband
  • birth mark

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Poissons

Spanish

Save record 3

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