Results 181 to 190 of about 15,427 (243)

Effects of Early Season Temperature on Adult Life History Traits of Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae) and Bracon cephi (Hymenoptera: Braconidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT Wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a long‐standing and serious pest of wheat, Triticum aestivum Linnaeus (Poaceae), in the northern Great Plains region of North America. Over the last decade, research efforts have aimed to better understand C.
Dylan M. Sjolie, Christian J. Willenborg, Meghan A. Vankosky   +2 more
wiley   +1 more source

First Record of Larval Parasitism in Disonycha glabrata (F.) (Coleoptera: Chrysomelidae) by Myiopharus ancilla (Walker) (Diptera: Tachinidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT The amaranth flea beetle, Disonycha glabrata (F.), is a major pest of amaranth crops (Amaranthus spp.) in the United States. Despite its economic impact, its natural enemy complex remains poorly documented. In this study, we report the first record of larval parasitism in D. glabrata by the tachinid fly Myiopharus ancilla (Walker).
Yony T. Callohuari, John O. Stireman III, Matthew A. Bertone, Beatrice N. Dingha, Louis E. N. Jackai   +4 more
wiley   +1 more source

Larval Arctic cod (Boreogadus saida) exhibit stronger developmental and physiological responses to temperature than to elevated pCO2

Journal of Fish Biology, EarlyView.
Abstract High‐latitude ecosystems are simultaneously warming and acidifying under ongoing climate change. Arctic cod (Boreogadus saida) are a key species in the Arctic Ocean and have demonstrated sensitivity to ocean warming and acidification as adults and embryos, but their larval sensitivity to the combined stressors is unknown. In a laboratory multi‐
Emily Slesinger, Louise A. Copeman, Benjamin J. Laurel, Mary Beth R. Hicks, Paul J. Iseri, Michelle A. Stowell, Thomas P. Hurst   +6 more
wiley   +1 more source

Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics

Journal of Fish Biology, EarlyView.
Abstract Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life‐history trait. The northern cod (Gadus morhua) stock complex,
M. Lisette Delgado, Nicole Smith, Frederick Whoriskey, Steve Devitt, Emilie Novaczek, Corey J. Morris, Tony Kess, Ian Bradbury, Sara Iverson, Paul Bentzen, Daniel E. Ruzzante   +10 more
wiley   +1 more source

Sequence capture analysis determines spatial and temporal stock contributions to a mixed coastal anadromous fishery

Journal of Fish Biology, EarlyView.
Abstract Employing a citizen science model of partnerships with recreational and commercial fishers, we collected 5298 fin‐clip samples of striped bass Morone saxatilis over a 2‐year period and a broad geographic area that encompassed a majority of the species migratory range.
Kristopher J. Wojtusik, David L. Berlinsky, Linas W. Kenter, Adrienne I. Kovach   +3 more
wiley   +1 more source

Arctic lake trout (Salvelinus namaycush) show evidence of seasonal acclimation of cardiac adrenergic sensitivity but not heat tolerance

Journal of Fish Biology, EarlyView.
Abstract Many Arctic fishes experience prolonged periods of extreme cold and large thermal variation over both rapid and seasonal time scales which challenge critical physiological functions. In the central Canadian Arctic, we caught wild adult lake trout (Salvelinus namaycush) acclimatized to winter and summer temperatures to determine the extent to ...
Emily P. Williams, Les N. Harris, Jean‐Sébastien Moore, Ella K. Middleton, Shira A. Berkelhammer, Ben Speers‐Roesch, Matthew J. H. Gilbert   +6 more
wiley   +1 more source

Marine migration influences mercury accumulation in anadromous Arctic char (Salvelinus alpinus)

Journal of Fish Biology, EarlyView.
Abstract Mercury (Hg) is a globally distributed toxic metal present in northern natural environments that biomagnifies in food webs and bioaccumulates in apex predator fish, such as Arctic char (Salvelinus alpinus)—an iteroparous species with a circumpolar distribution. Arctic char exhibit a variety of life history types, with the migrating, anadromous
Isabel R. Hilgendag, Michael Power, Mehdi M. Aqdam, Christopher W. Lewis, Zoya Martin, Ashley D. Ehrman, Heidi K. Swanson   +6 more
wiley   +1 more source

Black Carp Mylopharyngodon piceus reproductive development and maturation in the Mississippi River basin

Journal of Fish Biology, EarlyView.
Abstract Black Carp Mylopharyngodon piceus are native to most major east Asian drainages and are internationally cultured for use as a food‐fish or a biological control for molluscs. We describe the reproductive biology of Black Carp from the growing invasive population in the Mississippi River basin through examination of incidental commercial ...
Patrick T. Kroboth, Anne M. Herndon, Cayla L. Carlson, Fred Williams III, Rachel N. Alvarez, Amy E. George   +5 more
wiley   +1 more source

Post‐release survival, movement and marine migration of smolt‐to‐adult supplemented Atlantic Salmon

Journal of Fish Biology, EarlyView.
Abstract Atlantic salmon (Salmo salar) populations are declining across much of their range, prompting the use of supplementation strategies, such as smolt‐to‐adult supplementation (SAS), to enhance adult returns. However, little is known about how captivity while maturing to adulthood influences post‐release survival, behaviour and migration of ...
Natalie C. Koopman, Robert J. Lennox, Morgan L. Piczak, Marin Stubbings, Sarah Penney, John Batt, Glenn T. Crossin   +6 more
wiley   +1 more source

Winter feeding during the spawning migration of capelin north of Iceland

Journal of Fish Biology, EarlyView.
Abstract Winter feeding during the spawning migration of capelin is often assumed to be minimal, because energy is allocated to reproduction. However, January–February surveys north of Iceland in 2018 and 2019 showed that prey occurred in 64% and 62% of 423 stomachs examined, respectively. Copepods (Calanus spp.) and euphausiids dominated the diet, and
Hildur Petursdottir, Teresa Silva, Sigurdur Th. Jonsson, Warsha Singh   +3 more
wiley   +1 more source