Results 11 to 20 of about 127,163 (156)

Particular features of gonadal maturation and size at first maturity in Atrina maura (Bivalvia: Pinnidae)

open access: yesScientia Marina, 2012
The gonadal maturation of Atrina maura was examined by means of histological analysis and quantitative criteria. Particular features not previously described for this species are reported in this study: in both males and females the undifferentiated ...
Marian A. Camacho-Mondragón   +2 more
doaj   +3 more sources

Size at first maturity and maturity stages of Terapon jarbua (Forsskal, 1775) from Pondicherry Coast, India

open access: yesJournal of Fisheries, 2016
Size at first maturity of Terapon jarbua was studied based on 114 male (14 to 28 cm in TL) and 140 female (14 to 32 cm in TL). The Logistic curves describing the relationship between the sexes and the proportion of 50% maturity (Lm50) were estimated at ...
R Nandikeswari
doaj   +4 more sources

Estimating size at first maturity (L50) from Gonadossomatic Index (GSI) data [PDF]

open access: yesNeotropical Ichthyology, 2009
Correct estimates of size at first maturity (L50) are useful for fish stock management and different methods have been proposed. In this study we propose the use of a modified logistic to estimate L50, including a variable asymptote (A). We also test the
Nelson F. Fontoura   +2 more
doaj   +4 more sources

Reproduction and size at first maturity in a Mediterranean exploited Callista chione bivalve bed

open access: yesScientia Marina, 2015
The smooth clam Callista chione is an Atlantic-Mediterranean species that is commercially exploited in several European countries. Several aspects of its reproduction were studied in a coastal location of the northwestern Mediterranean as a tool for ...
Eve Galimany   +4 more
doaj   +5 more sources

Biometric indices and size at first sexual maturity of eight alien fish species from Bangladesh

open access: yesEgyptian Journal of Aquatic Research, 2016
The biometric indices and size at first sexual maturity of eight alien fish species from several water bodies in Bangladesh were studied for the first time. A total of 273 individuals of eight alien fish species (Barbonymus gonionotus, Clarias gariepinus,
Md. Yeamin Hossain   +9 more
doaj   +2 more sources

Sex Ratio And Size At First Maturity Of Blue Swimming Crab (Portunus pelagicus) Salemo Island Pangkep Regency [PDF]

open access: yesIlmu Kelautan, 2016
Blue swimming crab (Portunuspelagicus) is aeconomical valuable fisheries importantcommodity  due to the high demand and availability jobs created for the fishermen. Due to their high demand blue swimming crab heavily exploited from Salemo Island.
Muh. Saleh Nurdin   +2 more
doaj   +2 more sources

Ovarian and spawning reference, size at first maturity and fecundity of Glossogobius giuris caught along Vietnamese Mekong Delta. [PDF]

open access: yesSaudi J Biol Sci, 2022
This study investigates the ovarian development, spawning patterns, maturity size and fecundity of the goby Glossogobius giuris-a commercial fish in the Vietnamese Mekong Delta-based on the data analysis of 659 individuals. Specimens were caught using trawl nets from four sites representing freshwater (Cai Rang, Can Tho) to salinized regions in the dry
Dinh QM, Truong NT, Tran NS, Nguyen THD.
europepmc   +3 more sources

Can weight/length relationship predict size at first maturity? A case study with two species of Characidae [PDF]

open access: yesNeotropical Ichthyology, 2010
A weight/length relationship was established for Astyanax jacuhiensis (Cope, 1894) (n = 370) and Cheirodon ibicuhiensis Eigenmann, 1915 (n = 701), from samples taken monthly in Fortaleza Lagoon, Cidreira, Rio Grande do Sul, from December 1991 through ...
Nelson F. Fontoura   +3 more
doaj   +4 more sources

Predicting size at first sexual maturity from length/weight relationship: a case study with an Amazonian catfish [PDF]

open access: yesNeotropical Ichthyology, 2016
Relationship between length and weight (LWR) is used to describe aspects concerning the life cycle of fish, but does not considers possible changes during the lifetime mainly due to the sexual maturation.
Tiago Magalhães da Silva Freitas   +3 more
doaj   +5 more sources

Histology of Tritia mutabilis gonads: using reproductive biology to support sustainable fishery management

open access: yesAquatic Living Resources, 2021
The mutable nassa, Tritia mutabilis, a marine gastropod that is widely exploited on the Adriatic coast is an important source of income for small-scale fishermen in the Mediterranean Sea, particularly in the Gulf of Lion.
Mallet Alicia   +4 more
doaj   +1 more source

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