Results 131 to 140 of about 3,896,690 (244)

Reproductive characteristics of mackerel scad Decapterus macarellus (Cuvier, 1833) in northern Philippine waters

open access: yesCroatian Journal of Fisheries
Mackerel scad Decapterus macarellus is a highly valuable species in the Philippines municipal and commercial fishing industry, particularly in northern Philippine waters in the Babuyan Channel fishing ground.
Villarao Melanie C.   +1 more
doaj   +1 more source

The reproductive cycle of the thorny skate (Amblyraja radiata) in the western Gulf of Maine [PDF]

open access: yes, 2005
The thorny skate (Amblyraja radiata) is a large species of skate that is endemic to the waters of the western north Atlantic in the Gulf of Maine.
Danley, Patrick D.   +6 more
core  

Commercial mariculture of Oreochromis niloticus using net cages [PDF]

open access: yes, 1987
The culture of tilapia has a long history in Africa. Fossil remains of members of the genus have been found which are about 18 million years old (Fryer and Iles, 1972).
Fineman-Kalio, A.S.
core  

Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions

open access: yesNeotropical Ichthyology, 2011
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including ...
Felipe Alonso   +3 more
doaj  

Coarse fish in Scotland: a threat or a resource? [PDF]

open access: yes, 1993
This brief article summarizes the ecological role of non-salmonid fishes in Scottish fresh waters. Most government-sponsored research has focused on the ecologically valuable salmonids in this area, yet non-salmonid species are widely distributed in ...
Treasurer, James W.
core  

Fecundity and Gonadosomatic Index of Synodontis ngrita from River Osun Southwest Nigeria [PDF]

open access: yesJournal of Fisheries International, 2012
E.A.A. Olojo, A.O. Dosumu, K.B. Olurin
openaire   +1 more source

Influence of indices of reproduction on condition factor and some morphometric features of Tilapia guineensis [PDF]

open access: yes, 2012
The influence of indices of reproduction (Gonadosomatic index-GSI-and Hepatosomatic index -HSI-) on condition factor and morphometric features of Tilapia guineensis were examined using 160 fish comprising 70 females and 90 males.
Sikoki, F.D., Uka, A.
core  

A preliminary assessment of the scad and mackerel stocks at Sofala Bank, Mozambique [PDF]

open access: yes, 1984
Scads (Decapterus russellii, D. macrosoma, Selar crumenophthalmus), Indian mackerel (Rastrelliger kanagurta) and horse mackerel (Trachurus trachurus) are the main pelagic species caught in a bottom trawl fishery at Sofala Bank and at Boa Paz. Information
Borges, F., Gislason, H., Sousa, M.I.
core  

Relationship between biological egg characteristics and female brood fish in stellate sturgeon, Acipenser stellatus Pallas, 1771 (Pisces: Acipenseridae) in the Southeast Caspian Sea, Iran [PDF]

open access: yes, 2013
Fecundity is one of the important indicators of reproduction biology in fishes especially in rearing and restocking management of endangered species such as sturgeon. The fecundity of stellate Sturgeon (Acipenser stellatus Pallas, 1771) was studied in 50
Ghorbani, R.   +3 more
core  

Gonadosomatic index of sturgeon, beluga and stellate sturgeon during their life period in the rivers

open access: yesВестник Астраханского государственного технического университета. Серия: Рыбное хозяйство, 2012
The results of the study of morphophysiological variability of sturgeon migrating to the river Volga from the Caspian Sea are presented. Gonadosomatic indices of sturgeon, beluga and stellate sturgeon for the periods 1970–1973 and 2002–2005 are compared.
Nguyen, Din   +4 more
openaire   +1 more source

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