Results 61 to 70 of about 4,603,944 (167)
High variability in spawnerrecruit data hampers learning
Variability is a formidable opponent of experimental management aimed at detecting spawnerrecruit (SR) effects in a short time frame. I fitted Ricker SR models to 214 different SR data sets and found that high residual error variability was common. For
Richard A Hinrichsen
core +1 more source
The duration of spawning markers (e.g. signs of previousor imminent spawnings) is essential information for estimating spawning frequency of fish. In this study, theeffect of temperature on the duration of spawning markers (i.e., oocytes at early migratory nucleus, late migratorynucleus, and hydrated stages, as well as new postovulatory follicles) of ...
Kurita, Yutaka +2 more
openaire +2 more sources
Sustainable management and conservation strategies are crucial for any species of Gerreidae. Without comprehensive research on population biology, maintaining a balance between having healthy natural stocks and the socio-economic benefit of fisheries is ...
Gabr Mohamed Hosny +2 more
doaj +1 more source
Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
S. Chellappa +4 more
doaj +1 more source
The reproductive cycle of African multiple spawner Tilapia, Oreochromis mossambicus, is divided into preparatory, prespawning, spawning and postspawning phases, after evaluating the gonadosomatic index and percentage dominance of particular types of ...
J. G. K. Pathan, V. V. Baile
doaj
This publication may contain explicit sexual literary descriptions and/or artistic depictions.May ...
Multiple Contributors
core
Human activities have facilitated the invasion of freshwater ecosystems by various organisms. Especially, invasive bivalves such as the quagga mussels, Dreissena bugensis, have the potential to alter ecosystem function as they heavily affect the food web.
Linda Haltiner +3 more
doaj +1 more source
Bridging the weathering-toxicity translation gap in integrated oil spill modeling
Oil spill impact assessment has progressed unevenly across its component disciplines. Operational fate and transport models predict the physical and chemical state of spilled petroleum; ecosystem-scale food-web models propagate biological forcings ...
Koray Ozhan +3 more
doaj +1 more source
This publication may contain explicit sexual literary descriptions and/or artistic depictions.October ...
Multiple Contributors
core

