Results 91 to 100 of about 36,764 (291)
ABSTRACT The Atlantic chub mackerel, Scomber colias Gmelin, 1789, is a pelagic species, found in schools throughout the Atlantic Ocean. The objective of the present study is to identify the relationship between oceanographic conditions and catches of the Atlantic chub mackerel fishing resource in the Southwest Atlantic Ocean (21°S–29°S).
Joana Leal da Silva+2 more
wiley +1 more source
Ecology of common bully (Gobiomorphus cotidianus) in the Tarawera and Rangitaiki rivers: isolation by inland distance or anthropogenic discharge? [PDF]
Previous research has identified distinct genetic, life-history and reproductive differences between populations of common bully (Gobiomorphus cotidianus) upstream and downstream of a pulp and paper mill outfall on the Tarawera River in the Bay of Plenty,
Ahnelt H+11 more
core +2 more sources
Abstract Populations of anadromous European smelt (Osmerus eperlanus L.) are declining across its range with mitigation efforts for this ecologically important species hindered by a lack of demographic information. Here, mitochondrial DNA (mtDNA) and microsatellite analyses were used to describe historical and recurrent demographics for the species ...
Niall J. McKeown+6 more
wiley +1 more source
Habitat‐use strategies of young barramundi (Lates calcarifer) in a heavily modified landscape
Abstract Barramundi (Lates calcarifer) is a facultatively catadromous species that migrates between saltwater and fresh water to complete its life cycle. Modified riverine landscapes may limit these migratory paths and alter the environmental cues that migratory fish rely on to trigger migration.
Nut Munpholsri+3 more
wiley +1 more source
Mesopelagic fishes dominate otolith record of past two millennia in the Santa Barbara Basin. [PDF]
The mesopelagic (200-1000 m) separates the productive upper ocean from the deep ocean, yet little is known of its long-term dynamics despite recent research that suggests fishes of this zone likely dominate global fish biomass and contribute to the ...
Checkley, David M, Jones, William A
core
Potential metabolic records in isotope signals of chondrichthyan hard tissues
Abstract Recent advances have demonstrated that the field metabolic rates (FMRs) of teleost fishes can be quantified from stable isotope compositions of carbonate‐biomineralized otoliths. Bones and teeth, in addition to bioapatite, contain carbonate and should retain a similar isotopic expression of metabolic rate.
Eric Díaz‐Delgado+4 more
wiley +1 more source
The relationships between otolith size and body length of North African catfish Clarias gariepinus (Burchell, 1822), collected from Sakaryabaşı (the main spring area of the Sakarya River) between July 2014 and November 2014, were examined.
Yılmaz Savaş+4 more
doaj +1 more source
Patterns of growth, mortality, and size of the tropical damselfish Acanthochromis polyacanthus across the continental shelf of the Great Barrier Reef [PDF]
Age-based analyses were used to demonstrate consistent differences in growth between populations of Acanthochromis polyacanthus (Pomacentridae) collected at three distance strata across the continental shelf (inner, mid-, and outer shelf) of the central
Hughes, Julian M., Kingsford, Michael J.
core
Abstract Understanding fish life history is essential for effective management of fisheries, but continuous tracking over lifetime temporal scales can be difficult. Fish otoliths contain a natural biogeochemical record of ambient environmental conditions and habitat use over such scales.
Belinda K. Goddard+7 more
wiley +1 more source
Abstract In marine ecosystems, environmental conditions shape important ecological processes. The equatorial Galápagos Marine Reserve (GMR) is known for great spatial variation in the upwelling of cold nutrient‐rich waters and the input of warm Panamanian waters. Differences in oceanography influence the structure of benthic communities.
Juan Manuel Alava‐Jurado+2 more
wiley +1 more source