|
|
|
|
| |
|
| |
|
|
| OJEDA,F. PATRICIO; LABRA,FABIO A; MUÑOZ,ALEJANDRO A. |
| In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We determined the number and percentage of fish taxa within four different groups based on their biogeographic affinities. This was done, both for teleost and chondrichthyan fishes, at the species, genus and family level. In order to recognise the existence of biogeographic regions, we applied cluster and ordination analyses to the distribution data, using objective bootstrapping techniques at the three taxonomic levels used. We found that littoral fish diversity... |
| Tipo: Journal article |
Palavras-chave: Marine biogeography; Littoral fishes; Endemism; Southeastern Pacific Ocean; Latitudinal diversity patterns. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400007 |
| |
|
|
| FERNANDEZ,MIRIAM; JARAMILLO,EDUARDO; MARQUET,PABLO A; MORENO,CARLOS A; NAVARRETE,SERGIO A; OJEDA,F. PATRICIO; VALDOVINOS,CLAUDIO R; VASQUEZ,JULIO A. |
| Despite Chile has been one of the pioneering countries in studies of human impact on marine communities, and despite the enormous economic and social significance that the marine environment has for the country, the development of marine conservation programs and the scientific basis for sustainability has not kept pace, with the exploitation rate of marine fisheries and the increasing use of the coast for other purposes. Although we think that the establishment of any conservation policies along the vast coastline of Chile must be based on a multitude of approaches and considerations, scientific, biological, and ecological principles should guide much of these efforts. In this paper, we attempt to present a general overview of the current knowledge about... |
| Tipo: Journal article |
Palavras-chave: Chile; Marine conservation; Biogeographical patterns; Community structure; Human impact. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400021 |
| |
|
| |
|
|
| GONZÁLEZ,SOLANGE J; CÁCERES,CRISTIAN W; OJEDA,F. PATRICIO. |
| The red sea urchin Loxechinus albus, an economically important species oceurring along the Chilean littoral benthic systems, has been heavily exploited by artisanal fisheries in recent decades. However, basic knowledge of its trophic biology is still scarce. Studies of this kind are critical to the successful development of farming techniques as an alternative to the harvest of natural populations. The aims of this study were to quantify the composition of L. albus' natural diet, to determine the assimilation efficieney of the most important dietary components, and to experimentally examine the species' trophic selectivity. Adult and juvenile specimens were sampled in spring 1993 and summer, fall and winter 1994 from the shallow subtidal zone of Iquique,... |
| Tipo: Journal article |
Palavras-chave: Assimilation efficieney; Loxechinus; Natural diet; Trophic selectivity. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000400010 |
| |
|
| |
|
|
| CACERES,CRISTIAN W.; OJEDA,F. PATRICIO. |
| Los peces herbívoros son organismos que deben suplir los requerimientos de su economía energética a partir de una fuente de alimento con un bajo contenido de nutrientes y energía. Dos de las interrogantes más importantes en relación con la herbivoría por peces son: i) ¿cuáles son los factores que influyen en la selección o rechazo de un determinado item dietario? y ii) ¿son capaces los peces herbívoros de extraer los nutrientes y energía necesarios para suplir sus requerimientos energéticos en base a una dieta de macroalgas?. En este trabajo se estudiaron en dos especies de peces herbívoros, Scartichthys viridis y Girella laevifrons, los patrones de selectividad dietaria en terreno y laboratorio, la eficiencia de asimilación y la relación entre los... |
| Tipo: Journal article |
Palavras-chave: Peces; Herbivoría; Selección dieta; Eficiencia de asimilación; Chile. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200004 |
| |
|
| |
|
|
|
