Results 81 to 90 of about 2,193 (218)

Ichthyological ecoregions of Argentina [PDF]

open access: yes, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis   +2 more
core  

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniforme: Atherinopsidae)

open access: yesRevista de Biología Tropical, 2007
The structural and ultrastructural features of gonads from endemic Mexican fish have received scarce attention. This study describes the histological and ultrastructural characteristics of the oocyte in Chirostoma humboldtianum. The ovary is asynchronic, and as such, most phases of oocyte development are found in the same ovary. The complete process of
Cárdenas Reygadas, Rodolfo   +5 more
openaire   +15 more sources

Characters aiding in the identification of eggs and larvae of major groups [PDF]

open access: yes, 1989
The various characters of the eggs,larvae, postlarvae of marine fishes as summarised by Ahlstrom and Moser (1976) may be considered group-wise, as follows. A perusal of the publications by Russell (1976), Jones, Martin and Hardy Jr. (1978), Fritsche (
Bensam, P
core  

Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)

open access: yesNeotropical Ichthyology
In the present study it was showed for the first time the ultrastructural morphology of O. bonariensis sperm using electron microscopy techniques. Different kinds of abnormalities were described in fresh and post thawed sperm caused by crogenic protocols.
Ángela Gárriz, Leandro A. Miranda
doaj   +1 more source

Crecimiento del pejerrey, Odontesthes bonariensis (Pisces, Atheriniformes) en el embalse La Florida, San Luis, Argentina [PDF]

open access: yes, 1991
La croissance du pejerrey #Odontesthes bonariensis$ d'un lac de barrage de la zone néotropicale (33°08'S, 66° O) est décrite à partir d'échantillons obtenus avec des filets maillants.
Mestre Arceredillo, J.P., Sverlij, S.B.
core  

Studying fish biodiversity and abundance in Boujagh Wetland of Kiashahr, South-Western Caspian Sea

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2004
The fish biodiversity and abundance studied in Boujagh wetland, close to Kiashahr south-western Caspian Sea during the year 2002. In each season, samples were collected by using gillnet, common haul seine, cast net and dip net in a 7-15 day sampling ...
H. Khara; Sh. Nezami balochi
doaj  

New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae) [PDF]

open access: yes, 2014
The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago.
Baigún, Claudio Rafael M.   +4 more
core   +5 more sources

Studying fish biodiversity and abundance in Boujagh Wetland of Kiashahr, south-western Caspian Sea [PDF]

open access: yes, 2005
The fish biodiversity and abundance studied in Boujagh wetland, close to Kiashahr south-western Caspian Sea during the year 2002. In each season, samples were collected by using gillnet, common haul seine, cast net and dip net in a 7-15 day sampling ...
Khara, H., Nezami Baluchie, Sh.
core  

Estrutura populacional de Poecilia vivípara Bloch & Schneider, 1801 (Atheriniformes, Poeciliidae) do rio Ceará-Mirim - Rio Grande do Norte

open access: yesActa Scientiarum: Biological Sciences, 2008
Com o propósito de elucidar aspectos da estrutura populacional de Poecilia vivipara do rio Ceará-Mirim, município de Poço Branco, Rio Grande do Norte, foram capturados 3.390 exemplares em coletas mensais, no período de junho de 1995 a maio de 1997 ...
Renata Swany Soares Nascimento   +1 more
doaj   +1 more source

Assessment of condition in pejerrey Odontesthes bonariensis (Atheriniformes: Atherinopsidae) populations: which index works best?

open access: yesNeotropical Ichthyology
The pejerrey Odontesthes bonariensis is the most important target species in temperate freshwater fisheries of Argentina, and assessment of condition has been a regular practice and common diagnostic tool. Most pejerrey fishery studies have used Fulton's
Claudio R. M. Baigún   +2 more
doaj   +1 more source

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