Results 141 to 150 of about 3,056,753 (292)

Estimation of growth in intact grazing Holstein steers

open access: yesRevista Colombiana de Ciencias Pecuarias, 2013
Summary Background: animal growth does not follow a linear pattern. Accordingly, fitted non-linear models are used to analyze the relationship between growth rate and age. Objective: to assess the ability of several mathematical models (Gompertz, Brody,
Raul Velásquez Vélez   +4 more
doaj  

Patterns of growth, mortality, and size of the tropical damselfish Acanthochromis polyacanthus across the continental shelf of the Great Barrier Reef [PDF]

open access: yes, 2005
Age-based analyses were used to demonstrate consistent differences in growth between populations of Acanthochromis polyacanthus (Pomacentridae) collected at three distance strata across the continental shelf (inner, mid-, and outer shelf) of the central
Hughes, Julian M., Kingsford, Michael J.
core  

De von Bertalanffy a Luhmann: Deconstrucción del concepto “agroecosistema” a través de las generaciones sistémicas

open access: diamond, 2016
Lorena Victoria Pladellorens Casanova   +3 more
openalex   +1 more source

Modelling diet composition dynamics among North Sea predatory fish using a length-structured partial ecosystem model [PDF]

open access: yes, 2012
Multispecies fisheries management approaches must take account of the array of trophic interactions within the ecosystem. Studies of the gut contents of fish stocks in the North Sea show decadal changes in diet composition, as might be expected when the ...
Heath, Michael   +2 more
core  

Population response of triploid grass carp to declining levels of hydrilla in the Santee Cooper Reservoirs, South Carolina [PDF]

open access: yes, 2000
Approximately 768,500 triploid grass carp ( Ctenopharyngodon idella Valenciennes) were stocked into the Santee Cooper reservoirs, South Carolina between 1989 and 1996 to control hydrilla ( Hydrilla verticillata (L.f.) Royle).
Killgore, K. Jack   +4 more
core  

Growth, age and size of the Jurassic pachycormid Leedsichthys problematicus (Osteichthyes: Actinopterygii) [PDF]

open access: yes, 2013
The Jurassic pachycormid osteichthyan Leedsichthys problematicus is renowned for having been able to achieve prodigious size for a bony fish. Building on work of MARTILL (1986a), a thorough examination of all known material was conducted in order to ...
Adams, C.   +3 more
core  

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