Results 71 to 80 of about 15,082 (117)

Migrations of yellowfin tuna tagged off the southern coast of Mexico in 1960 and 1969 [PDF]

open access: yes, 1974
ENGLISH: The map method, the Jones method, the variance-covariance method, and the Skellam method were used to study the migrations of tagged yellowfin tuna released off the southern coast of Mexico in 1960 and 1969.
Bayliff, William H.   +1 more
core  

Caraterización citogenética del pez tropical de agua dulce Parachromis managuensis (Pisces:Cichlidae)

open access: yesRevista de Biología Tropical, 2006
Para contribuir con el ordenamiento de las especies de la familia Cichlidae, se realizó el estudio citogenético de la mojarra pinta Parachromis managuensis.
Lenin Arias-Rodriguez   +2 more
doaj  

A review of the Japanese longline fishery for tunas and billfishes in the eastern Pacific Ocean, 1993-1997 [PDF]

open access: yes, 2003
English: This report reviews the Japanese longline fishery in the eastern Pacific Ocean during the 1993-1997 period, extending the studies for the 1956-1992 period made by other investigators.
Bayliff, William H., Okamoto, Hiroaki
core  

Bioantropología de los restos óseos provenientes de un sitio tardío en el bajo Río Magdalena (El Salado, Salamina, Magdalena)

open access: yesMaguaré, 2002
Se reporta el análisis bioantropológico de los restos óseos provenientes del yacimiento El Salado, municipio de Salamina, departamento del Magdalena, Colombia, fecha- dos entre los siglos VII-VIII d.C., ubicado cerca a la ciénaga del Pescado, bosque seco
José Vicente Rodríguez Cuenca   +1 more
doaj   +2 more sources

Los cromosomas mitóticos y meióticos del pez tropical Petenia splendida (Cichlidae)

open access: yesRevista de Biología Tropical, 2008
Para describir los cromosomas del cariotipo en mitosis y meiosis de la mojarra tenguayaca P. splendida, se procesaron 60 larvas y doce jóvenes (seis hembras y seis machos) procedentes de Tabasco, México.
Lenin Arias-Rodriguez   +2 more
doaj  

A review of the Japanese longline fishery for tunas and billfishes in the Eastern Pacific Ocean, 1971-1980 [PDF]

open access: yes, 1987
ENGLISH: This report reviews the Japanese longline fishery for tunas and billfishes in the eastern Pacific Ocean during 1971-1980, extending the studies made by other investigators, which covered the 1956-1970 period.
Bayliff, William H., Miyabe, Naozumi
core  

Effects of Cyclodextrin Type on Vitamin C, Antioxidant Activity, and Sensory Attributes of a Mandarin Juice Enriched with Pomegranate and Goji Berries [PDF]

open access: yes, 2011
The effects of the addition of cyclodextrins (CDs), β-CD, or HP-β-CD (1%), on the protection of antioxidant compounds of mandarin juices enriched with pomegranate extract and goji berries juice, was studied.
Calín Sánchez, Ángel   +6 more
core   +1 more source

An evaluation of length-frequency sampling procedures and subsequent data analysis for purse seine-caught yellowfin tuna in the Eastern Pacific Ocean [PDF]

open access: yes, 1994
ENGLISH: A two-stage sampling design is used to estimate the variances of the numbers of yellowfin in different age groups caught in the eastern Pacific Ocean.
Wild, A
core  

Constructing polynomial systems with many positive solutions using tropical geometry

open access: yes, 2017
The number of positive solutions of a system of two polynomials in two variables defined in the field of real numbers with a total of five distinct monomials cannot exceed 15. All previously known examples have at most 5 positive solutions.
Hilany, Boulos El
core   +2 more sources

Bayesian hierarchical models for analysing the spatial distribution of bioclimatic indices [PDF]

open access: yes, 2017
A methodological approach for modelling the spatial distribution of bioclimatic indices is proposed in this paper. The value of the bioclimatic index is modelled with a hierarchical Bayesian model that incorporates both structured and unstructured random
Barber, Antoni   +5 more
core  

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