Results 91 to 100 of about 12,156 (246)

Some aspects in early life stage of snake head fish, Channa striatus larvae [PDF]

, 2011
The sexual maturity of female snake head fish, Channa striatus was studied by determining fecundity and gonadosomaticindex (GSI). It was found that the size at sexual maturity of female snake head fish was 26.45±3.07 cm (mean ± SD,n=10) in total length ...
Ponpanom Promkaew2, Thumronk Amornsakun1*,, Wasan Sriwatana2   +2 more
core  

When Similar Individuals Don't Attract: Absence of Assortative Mating by Coloration in a Damselfly With Honest Signaling

Ethology, EarlyView.
In Acanthagrion lancea damselflies, both sexes display blue ornamentation, but do they choose mates based on it? We tested whether mutual mate choice and time constraints influence ornament evolution. Blue coloration correlated with individual quality, but individuals did not choose mates based on color, and this was unaffected by time constraints over
Maria C. A. Melillo, Stefânia P. R. Ventura, Rhainer Guillermo‐Ferreira, Paulo Enrique C. Peixoto   +3 more
wiley   +1 more source

Phylogeography of anabas testudineus bloch, 1792 (pisces: anabantidae) in asia [PDF]

BIO Web of Conferences
Anabas testudineus, the climbing perch, is a valuable and well-liked freshwater fish with significant commercial worth. This fish is found in Indonesia and other parts of Asia.
Razi Nanda Muhammad, Nasir Muhammad, Ramadhaniaty Mutia, Rahayu Sri Riska, Handayani Luvi Syafrida, Sitrous Ahmad Sazali A., Aswina Cut Tria, Fadli Nur, Muchlisin Zainal A.   +8 more
doaj   +1 more source

The behaviour-performance continuum: how does individual variation in locomotor abilities relate to behaviour? [PDF]

Biol Rev Camb Philos Soc
ABSTRACT A series of terminological, technical, conceptual, and statistical challenges present themselves when trying to study correlations between measures of performance abilities (what an animal can do) and behavioural traits (what an animal chooses to do).
Careau V, Agnani P, Bonin N, Garland T.
europepmc   +2 more sources

Nocturnal Lepidopterans as Essential Pollinators of Aspidosperma pyrifolium (Apocynaceae), a Keystone Tree in the Caatinga Dry Forest

Journal of Applied Entomology, EarlyView.
ABSTRACT Pollination is a key ecosystem service, yet most studies focus on diurnal interactions, often overlooking nocturnal pollinators such as hawkmoths and settling moths. In arid environments, nocturnal pollination plays a crucial role in maintaining native plant species of high biocultural value, as seen in the Caatinga dry forest.
Joel A. Queiroz, Arthur Domingos‐Melo, Zelma G. M. Quirino, Isabel C. S. Machado   +3 more
wiley   +1 more source

Observation on Haematological and Enzymatic Changes on Spontaneous Papillomatous Condition of Anabas testudineus (Bloch)

Asian Fisheries Science, 2005
Haematological and enzymatic studies were made on the spontaneous cases of skin papilloma of climbing perch (Anabas testudineus). It was revealed that blood parameters and enzymatic levels showed hyperactive immune system in papilloma-affected fish as ...
B.K. DAS, P. PATTNAIK, B.K. MISHRA
doaj   +1 more source

Morfologi, Fisiologi, Preservasi Sel Sperma Ikan Betok, Anabas Testudineus Bloch 1792 Dan Ketahanannya Terhadap Kejut Listrik [Morphology, Physiology, Preservation of Climbing Perch Anabas Testudineus Bloch 1792 Sperm and the Endurance to Electric Shock] [PDF]

, 2014
Kualitas sperma yang baik dan dalam keadaan tak aktif selama proses elektroporasi sangat menentukan keberhasilan transgenesis. Penelitian ini bertujuan untuk mengeksplorasi karakter morfologis dan fisiologis sel sperma, serta menge-valuasi efek voltase ...
Alimuddin, N. (nFN), Junior, M. Z. (M), Maulana, F. (Fajar)   +2 more
core  

Spatial habitat partitioning enables coexistence of three Gobiidae species in estuarine environments

Journal of Fish Biology, EarlyView.
Abstract This study examines resource partitioning (feeding morphology, diet and habitat partitioning) among three gobiid species, the Knysna sandgoby Psammogobius knysnaensis, the prison goby Caffrogobius gilchristi and the river goby Glossogobius callidus, within an estuarine environment.
Phumza M. Ndaleni, Josie South, Leopold A. J. Nagelkerke, Olaf L. F. Weyl, Phakama Nodo, Nicola C. James   +5 more
wiley   +1 more source

Effect of Chlorpyrifos Ethyl on Acetylcholinesterase Activity in Climbing Perch (Anabas testudineus, Bloch, 1972)

Archives of Environmental Contamination and Toxicology, 2015
The high use of pesticides in intensive rice farming in the Mekong Delta constitutes a potential hazard to the environment and to people's health. Chlorpyrifos ethyl (CPF) is a commonly used organophosphate (OP) insecticide, but information about its potential negative impacts on the aquatic environment in the Mekong Delta is scarce.
Nguyen Thanh Tam, Håkan Berg, Phan Thi Bich Tuyen, Nguyen Van Cong   +3 more
openaire   +4 more sources

Relationship between the environment and the occurrence of invasive pumpkinseed Lepomis gibbosus in lotic and lentic habitats

Journal of Fish Biology, EarlyView.
Abstract The pumpkinseed Lepomis gibbosus is a freshwater fish species native to North America. It has been introduced to Europe, where it is recognized as one of the worst aquatic invaders due to its high adaptability and invasive potential. This study aimed to determine the presence of L. gibbosus in small to medium‐sized water bodies, both lotic and
Ivan Špelić, Marko Glogoški, Marina Piria   +2 more
wiley   +1 more source