Results 21 to 30 of about 3,629,790 (173)

Some aspects of the life history of Oxynoemacheilus bergianus (Actinopterygii: Nemacheilidae) from the Jajrud River in the Namak Lake basin, Central Iran [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2022
The length-weight relationship, breeding season and condition factor of Oxynoemacheilus bergianus from Jajrud River in the Namak Lake basin, Tehran Province, Central Iran, were investigated. Sampling was performed from March 2017 to February 2018.
Amir Pourshabanan   +4 more
doaj   +1 more source

Monthly variation of the Gonadosomatic Index (GSI) and Relative Condition Index (RCI) of the chilean clam A. antiqua in natural beds.

open access: yes, 2022
(A) Gonadosomatic Index in natural beds at Carelmapu. (B) Gonadosomatic Index in natural beds at Quellón. (C) Relative Condition Index in Carelmapu. (D) Relative Condition Index in Quellón. The error bars correspond to standard error.
Marcela P. Astorga (12378507)   +5 more
core   +1 more source

Length-weight, Condition factor and gonadosomatic index of blackspot snapper Lutjanus fulviflamma (Forsskal, 1775) (Perciformes: Lutjanidae) in the northern Persian Gulf

open access: yesInternational Journal of Aquatic Biology, 2018
The present study aimed to evaluate the length-weight and Length-length relationships as well as the condition factor and gonadosomatic index of the Blackspot snapper, Lutjanus fulviflamma in the northern Persian Gulf, Hormozgan Province, Iran.
Alireza Razi, Ahmad Noori
doaj   +1 more source

Age, reproduction, and fecundity of a population of Cobitis sp. (Actinopterygii: Cypriniformes: Cobitidae) from the Babolrud River in the southern Caspian Sea basin [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2011
Background. Loach fishes, Cobitis sp., are found in the majority of streams in the southern Caspian Sea basin, but reproductive parameters of them are barely known.
H. Mousavi Sabet   +7 more
doaj   +3 more sources

Gonadosomatic index (GSI), Hepatosomatic index (HSI) and Viscerosomatic index (VSI), of yellow perch reared at different stocking densities for 180 days.

open access: yes, 2022
Gonadosomatic index (GSI), Hepatosomatic index (HSI) and Viscerosomatic index (VSI), of yellow perch reared at different stocking densities for 180 days.
Han-Ping Wang (3715885)   +6 more
core   +1 more source

Correlation between Ecological Status of Sedati Waters and Gonadosomatic Index of Short-Necked Clam (Paratapes undulatus) [PDF]

open access: yes, 2022
Catching is one way to get Short necked-clam so the demand also increases. The gonadosomatic index (GSI) of short necked-clam is a study to maintain the availability of short-necked-clam in waters. Another thing that can be obtained from this study is to
Nurul Fitriani   +6 more
core   +1 more source

An indirect approach to estimate spawning fraction as applied to Sardinops sagax from northern Chile

open access: yesScientia Marina, 2001
The spawning fraction of fishes with multiple spawnings and indeterminate fecundity is normally estimated through biologically intensive and time-consuming histological procedures, such as the one based on the proportion of females with post-ovulatory ...
Gabriel Claramunt, Rubén Roa
doaj   +1 more source

STUDY OF GONADOSOMATIC INDEX OF SALMO OHRIDANUS STEINDACHNER FROM OHRID LAKE [PDF]

open access: yes, 2017
With the aim to investigate the gonadosomatic index of Ohrid belvica (Salmo ohridanus, Steindachner, 1892), investigations were conducted on individuals captured in vegetative and reproductive development period of belvica, on three localities of Ohrid ...
Daniela Belichovska   +2 more
core   +1 more source

Effects of Water Temperature on Gonads Growth in Ambystoma mexicanum Axolotl Salamanders

open access: yesAnimals, 2023
The thermal environment is a major factor influencing amphibians. For example, amphibian reproduction occurs in specific temperatures, and minor changes in this aspect could have negative impacts on this biological process.
Chester R. Figiel
doaj   +1 more source

Reproductive biology of Yellowfin Seabream Acanthopagrus latus in coastal waters of Hormozgan [PDF]

open access: yesبوم‌شناسی آبزیان, 2012
Some reproductive biology features of Yellowfin Seabream Acanthopagrusl atus including gonadosomatic index, hepatosomatic index, sex ratio, macroscopic and microscopic survey of gonad development, frequency of different maturationstages and absolute and ...
Shahlah Nikkhah Khaje Ataei   +5 more
doaj  

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