Results 31 to 40 of about 559 (168)

Cortisol-induced masculinization: does thermal stress affect gonadal fate in pejerrey, a teleost fish with temperature-dependent sex determination? [PDF]

PLoS ONE, 2009
BACKGROUND: Gonadal fate in many reptiles, fish, and amphibians is modulated by the temperature experienced during a critical period early in life (temperature-dependent sex determination; TSD).
Ricardo S Hattori, Juan I Fernandino, Ai Kishii, Hiroyuki Kimura, Tomomi Kinno, Miho Oura, Gustavo M Somoza, Masashi Yokota, Carlos A Strüssmann, Seiichi Watanabe   +9 more
doaj   +1 more source

Early Nutritional Programing: Unlocking the Potential of Fish for Sustainable Aquaculture

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
Nutritional programing, which explores the link between early nutritional conditions and their long‐term effects on animals, is a developing field within fish biology. Suboptimal nutritional status during early life is strongly associated with a higher risk of metabolic consequences later in life, including permanent growth retardation, impaired neural
Shivendra Kumar, Aditi Banik, Maneesh Kumar Dubey, Prem Prakash Srivastava, Zsuzsanna J. Sandor, Jianguang Qin   +5 more
wiley   +1 more source

Effects of Photoperiod on Growth, Reproduction, and Physiology of Nile Tilapia (Oreochromis niloticus)

Aquaculture Research, Volume 2026, Issue 1, 2026.
The photobiological responses of fish are strongly influenced by the surrounding photoperiod conditions. This study aimed to evaluate the effects of photoperiod on the growth performance, gonadal development, major haematological parameters, skin coloration, and proximate composition of Nile tilapia (Oreochromis niloticus).
Mobin Hossain Shohan, Md. Naim Mahmud, Mohammad Mahfujul Haque, Neaz A. Hasan   +3 more
wiley   +1 more source

Artemia Enrichment Strategies: A Comprehensive Review of Nutritional Enhancements With Emphasis on Fatty Acid Profiles in Aquatic Species

Reviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Artemia (brine shrimp) is a foundational live feed in global aquaculture, renowned for its adaptability, ease of production, and favorable nutritional profile. However, in its natural state, Artemia contains suboptimal levels of highly unsaturated fatty acids (HUFAs), particularly docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA ...
Yathish Ramena, Ram Babu Kurapati, Thomas Bosteels, Grace Ramena   +3 more
wiley   +1 more source

Germ cell transplantation using sexually competent fish: an approach for rapid propagation of endangered and valuable germlines. [PDF]

PLoS ONE, 2009
The transplantation of germ cells into adult recipient gonads is a tool with wide applications in animal breeding and conservation of valuable and/or endangered species; it also provides a means for basic studies involving germ cell (GC) proliferation ...
Sullip K Majhi, Ricardo S Hattori, Masashi Yokota, Seiichi Watanabe, Carlos A Strüssmann   +4 more
doaj   +1 more source

Problems with combining modelling and social science approaches to understand artisanal fisheries bycatch

Diversity and Distributions, Volume 31, Issue 3, March 2025.
Abstract Aim Artisanal fisheries account for 40% of the world's fisheries catch, yet its environmental impacts remain poorly understood. This is especially the case in developing countries. In this study, we sought to integrate Local Fisher's Knowledge with distribution modelling to estimate the annual bycatch of Titicaca Grebe (Rollandia microptera ...
Daniel A. Villar, Edwin R. Gutiérrez Tito, Paola Velásquez‐Noriega, Anahi Cosky Paca‐Condori, Edmundo G. Moreno Terrazas, Alfredo Balcón Cuno, Ronald Hinojosa Cárdenas, Carmen Villanueva, Patrick Chapman, Luca Chiaverini, Jorgelina Marino, Andrew G. Gosler   +11 more
wiley   +1 more source

¿El pejerrey puede causar cambios estructurales en un ecosistema?

Biología Acuática, 2019
La laguna Del Estado se secó circunstancialmente a comienzos de la década de 1960. El aislamiento hidrológico superficial del ambiente impidió la recolonización masiva de peces.
Fabián Grosman, Pablo Sanzano
doaj  

Evaluación del crecimiento del pejerrey Odontesthes bonariensis y su relacióncon la talla mínima de captura utilizada en las pesquerías

Revista Peruana de Biología
El pejerrey Odontesthes bonariensis (Actinopterygii; Atherinopsidae) es un recurso pesquero relevante en varios países sudamericanos. En Argentina, su pesca permite la obtención de un importante volumen de proteína en numerosos ambientes acuáticos.
Miguel Mancini, Omar Del Ponti, Pablo Sanzano, Claudia Ledesma, Víctor Salinas, Fabián Grosman   +5 more
doaj   +1 more source

Bile Pigments in the Bile of Freshwater Fish, Rainbow Trout, Tilapia, and Pejerrey

Agricultural and Biological Chemistry, 1988
Bile pigments in the bile of the rainbow trout, Salmo gairdneri, tilapia, Tilapia nilotica, and pejerrey, Odonthetes bonariensis, were analyzed by HPLC and TLC.Major bile pigments of rainbow trout and pejerrey were bilirubin glucuronides and ditauro-bilirubin, respectively.
SAKAI, Tadashi, TABATA, Nobuyuki, WATANABE, Katsuko   +2 more
openaire   +2 more sources

Early morphological variation and induction of phenotypic plasticity in Patagonian pejerrey [PDF]

Neotropical Ichthyology, 2012
The aim of this work was to study two aspects of phenotypic plasticity in the Patagonian pejerrey Odontesthes hatcheri (Teleostei: Atherinopsidae) the dependence of the early morphology on developmental time and temperature, and the induction of morphological changes by controlled feeding in juveniles.
Crichigno, Sonia A., Battini, Miguel A., Cussac, Víctor E.   +2 more
openaire   +6 more sources