Results 121 to 130 of about 3,728 (226)

Bioenergetic evaluation of diel vertical migration by bull trout [PDF]

I evaluated hypotheses related to growth as a driver of depth use and diel vertical migration by bull trout (Salvelinus confluentus) in a thermally stratified reservoir.
Eckmann, Madeleine
core  

Predator specificity of kairomones in diel vertical migration of Daphnia: a chemical approach [PDF]

, 2000
Daphnia responds to chemical cues released by fish with diel vertical migration (DVM) as a behavioural predator avoidance. We used a bioassay to characterize the chemical nature of the kairomone. Cues released from stickleback (Gasterosteus aculeatus,
Von Elert, E., Pohnert, G.
core   +1 more source

Environmental Drivers of Jumbo Squid During Fishery Collapse in the Gulf of California (2019–2024)

Fisheries Oceanography, Volume 35, Issue 4, Page 477-491, July 2026.
ABSTRACT The jumbo squid (Dosidicus gigas) is a cephalopod endemic to the eastern Pacific with significant ecological and economic importance. Its exploitation in the Gulf of California (GC) peaked in the 1990s, with catches exceeding 100,000 tons, but collapsed in 2009 and virtually disappeared by 2015, largely due to environmental changes and ...
Mario Vásquez‐Ortiz, Juan Roberto F. Vallarta‐Zárate, Jesús E. Osuna‐Soto, Emma Verónica Pérez‐Flores, Leslie Altamirano‐López, Ramón Isaac Rojas‐González   +5 more
wiley   +1 more source

Diel changes in the vertical distribution of biomass and species [PDF]

, 1983
Displacement volumes were measured, and selected species of zooplankton were counted from sets of vertically stratified samples taken in the Southern California Bight in April 1965 to provide information on vertical distribution and changes in ...
Brooks, Southern, Mullin: Diel Distribution, Changes In   +3 more
core  

Contrasting diel vertical migration patterns in Salpa fusiformis populations [PDF]

, 2017
7 pages, 2 figures, 1 tableVertically stratified zooplankton sampling at three locations in the Catalan Sea demonstrated that the coexistence of two diel vertical migration patterns in Salpa fusiformis populations.
Raya, V., Raya, Vanesa, M. Pascual, Sabates, A., Fuentes, V., A. Sabatés, Fuentes, Veronica, J. L. Acuña, Pascual Torner, María, Sabatés, Ana, Pascual, M., Acuña Fernández, José Luis, V. Fuentes, V. Raya   +13 more
core   +1 more source

Vertical Habitat Use by Japanese Jack Mackerel Trachurus japonicus Inferred From a Biologging Study in Tokyo Bay

Fisheries Oceanography, Volume 35, Issue 4, Page 518-531, July 2026.
ABSTRACT The movement ecology of Trachurus japonicus in the adult stage remains poorly understood because observing their underwater behavior over long periods is challenging. This study aimed to examine vertical habitat use by T. japonicus using electronic tags. Ninety fish were tagged and released in November 2022 in Tokyo Bay, Japan.
Junji Kinoshita, Yuki Fujinami, Junichi Imoto, Tohya Yasuda   +3 more
wiley   +1 more source

Using the Diet Composition of Adult Chinook Salmon to Understand the Regional Structure of Salish Sea Forage Communities

Fisheries Oceanography, Volume 35, Issue 4, Page 565-579, July 2026.
ABSTRACT Small pelagic fish and other forage species are patchily distributed over space and time, resulting in variable foraging conditions experienced by their predators. The high‐resolution data necessary to understand the spatiotemporal structure of forage communities are challenging to collect with expensive fishery‐independent surveys, meaning ...
Wesley L. Greentree, William D. P. Duguid, Micah J. Quindazzi, Bridget Maher, Francis Juanes   +4 more
wiley   +1 more source

Diel vertical migration of copepods in a Brazilian lake: a mechanism for decreasing risk of Chaoborus predation?

Brazilian Journal of Biology
A comparison between two studies on diel vertical migration of two cyclopoid copepod species, in Lake Monte Alegre, undertaken in 1985/86 and 1999, revealed a change in their migratory behavior.
Perticarrari A., M. S. Arcifa, R. A. Rodrigues   +2 more
doaj   +1 more source

Fish Presence, but Not Hydrological Connectivity, Alters Amphibian and Zooplankton Communities in Kettle Lakes

Freshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Fishless lakes, which may harbour higher biodiversity than lakes with fish, are becoming increasingly rare due to fish introductions. Although the impacts of fish introduction are relatively well studied in high‐elevation fishless lakes, previous studies have mainly focused on a single invertebrate community or on a particular life stage of a ...
Ariane Barrette, Katrine Turgeon, Mariano J. Feldman, Guillaume Grosbois   +3 more
wiley   +1 more source

Ontogenetic Sequence of Differential Gene Expression in Predator‐Induced Daphnia pulex

Molecular Ecology, Volume 35, Issue 13, July 2026.
ABSTRACT In response to predators, many Daphnia species develop inducible morphological defenses. These traits are phenotypically plastic, meaning their production is suppressed in the absence of the predator. While previous studies have identified several neurohumoral factors and candidate genes involved in the development of the defenses, the ...
Andrey Rozenberg, Linda C. Weiss, Tatjana Schwarz, Nancy Kühne, Uwe John, Ralph Tollrian   +5 more
wiley   +1 more source