Results 11 to 20 of about 1,901,647 (198)

Species‐Specific Response of Fish Health Condition to Nutrient Enrichment in Subtropical Rivers [PDF]

Ecology and Evolution
Fish growth is closely related to environmental variables; however, how nutrient enrichment affects fish growth conditions remains unclear in subtropical polder rivers.
Jianwen Li, Zhenmei Lin, Jinlei Yu, Zhigang Mao, Shi Fu, Kun Xu, Chan Li, Junfeng Gao, Kuanyi Li, Zhengwen Liu   +9 more
doaj   +2 more sources

Spatio-Temporal Variation of Elemental Contamination and Health of Mya arenaria Clam in the Saguenay–St. Lawrence Marine Park

Applied Sciences, 2022
The impacts of pollution and long-term effects of local clam populations are misunderstood in estuaries. The purpose of this study was to follow inorganic contamination in tissues, changes of physiological health indicators, such as condition factor (CF),
François Gagné, Chantale André, Samuel Turgeon, Nadia Ménard   +3 more
doaj   +1 more source

Brycon hilarii produced in hapas: effects in allometric growth [PDF]

Brazilian Journal of Biology
Biometric evaluations are essential to determine the growth characteristics related to the weight and length of fish. This study aimed to determine the growth patterns of juvenile piraputangas (Brycon hilarii) produced in hapas within an excavated pond ...
F. C. Oliveira, R. A. C. Corrêa-Filho, R. M. G. Acunha, J. A. Povh, A. L. J. Ferraz, C. M. Campos   +5 more
doaj   +1 more source

Biological aspects of Hypostomus affinis (Siluriformes: Loricariidae) in Brazilian coastal rivers

Acta Limnologica Brasiliensia, 2022
Aim Determine the length-weight relationship (LWR), the period of reproduction, and evaluate the variation of the condition factor (K) of Hypostomus affinis from two coastal drainages in southeastern Brazil, assessing the influence of the rainfall on ...
Tiago Magalhães da Silva Freitas, Gilberto Nepomuceno Salvador   +1 more
doaj   +1 more source

İstavrit Balığı Trachurus mediterraneus Steindachner, 1868 ’nın Doğu Karadeniz’de Kafeslerde Büyüme Performansının Belirlenmesi

Journal of Agricultural Sciences, 2016
Bu çalışma istavrit balığının Trachurus mediterraneus Steindachner, 1868 Doğu Karadeniz’de kafeslerde kültür potansiyeli üzerine yapılan ilk çalışmadır. Balıklar, ağ tuzaklarla doğadan yakalanmış ve doğrudan kafeslere transfer edilmiştir.
Nadir Başçınar, Fatma Delihasan Sonay, Şahin Alsan, İlhan Altınok   +3 more
doaj   +1 more source

Biological aspects of Schizodon nasutus Kner, 1858 (Characiformes, Anostomidae) in the low Sorocaba river basin, São Paulo state, Brazil

Brazilian Journal of Biology
Four biological aspects of Schizodon nasutus in the low Sorocaba river basin, São Paulo, Brazil were analysed. These were accomplished during the year seasons.
GA. Villares Junior, LM. Gomiero, R. Goitein   +2 more
doaj   +1 more source

Maturity, breeding cycle, and fecundity of Mastacembelus armatus (Actinopterygii: Synbranchiformes: Mastacembelidae) in the sub-tropical waters of the river Ganga [PDF]

Acta Ichthyologica et Piscatoria, 2020
Background. The investigation on different aspects of the reproductive biology is valuable information in the development of breeding technologies towards initiating conservation and other management measures of the indigenous fish stocks.
A. Alam, G. Gopinath, D.N. Jha, J. Kumar, S.C.S. Das, K.D. Joshi, B.K. Das, V.R. Thakur, M. Gupta   +8 more
doaj   +3 more sources

Spatial and temporal patterns in the Mediterranean populations of Aristaeomorpha foliacea and Aristeus antennatus (Crustacea: Decapoda: Aristeidae) based on the MEDITS surveys

Scientia Marina, 2019
The aristeids Aristaeomorpha foliacea and Aristeus antennatus are two species of great economic importance in the Mediterranean Sea, where they are exploited almost exclusively by bottom trawlers.
Beatriz Guijarro, Isabella Bitetto, Gianfranco D’Onghia, Maria Cristina Follesa, Kostas Kapiris, Alessandro Mannini, Olivera Marković, Reno Micallef, Sergio Ragonese, Kostas Skarvelis, Angelo Cau   +10 more
doaj   +1 more source

Elemental composition of Talang Queenfish (Scomberoides commersonnianus Lacépède, 1801) in relation to body size and condition factor from Pakistan

Brazilian Journal of Biology, 2022
Fish is thought to be the most appropriate for indication of toxicity in water. So, purpose of present study was to determine the concentrations of few metals (Na, K, Ca, Mg, Fe, Cd, Pb and Zn) in relation to the body size and condition factor in ...
S. M. Azam, M. Naeem, N. Ahmad, R. Yaqoob, M. Khalid, V. Lal   +5 more
doaj   +1 more source

The Aleutians and Beyond: Distribution, Size Composition, and Catch Dynamics of the Aleutian Skate Bathyraja aleutica across the North Pacific

Animals, 2022
The results of long-term (1948–2021) studies on the spatial and vertical distribution, dynamics of abundance, and size composition of the Aleutian skate Bathyraja aleutica in the North Pacific Ocean are presented.
Igor V. Grigorov, Kirill K. Kivva, Alexei M. Orlov   +2 more
doaj   +1 more source