Results 21 to 30 of about 19,805 (300)

Long-term retrospective analysis of mackerel spawning in the North Sea:A new time series and modeling approach to CPR data [PDF]

open access: yes, 2012
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series of larvae caught by the Continuous Plankton Recorder (CPR) survey from 1948-2005, covering the period both before and after the collapse of the North Sea ...
Jansen, Teunis   +29 more
core   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Petrale sole transboundary connectivity and settlement success: a biophysical approach

open access: yesFrontiers in Marine Science, 2023
Connectivity between inferred spawning areas and potential settlement areas of the petrale sole (Eopsetta jordani) was explored in the California Current System (CCS) using an individual-based model (IBM) coupled with the ROMS hydrodynamic model for the ...
Francisco Santa Cruz   +6 more
doaj   +1 more source

Evaluating the effectiveness of a seasonal spawning area closure [PDF]

open access: yesICES Journal of Marine Science, 2015
AbstractFish that aggregate at predictable locations and times to spawn are often vulnerable to over-exploitation. Seasonal closures have often been implemented in an attempt to alleviate such impacts but the effectiveness of these measures is rarely tested. This study evaluates the effectiveness of a spawning closure for Atlantic cod (Gadus morhua) in
Clarke, J., Bailey, D.M., Wright, P.J.
openaire   +2 more sources

Population structure of Atlantic Mackerel (Scomber scombrus) [PDF]

open access: yes, 2013
Atlantic mackerel (Scomber scombrus) occurs on both sides of the north Atlantic and has traditionally been grouped into 5 spawning components, some of which were thought to be isolated natal homing stocks.
Jansen, Teunis   +9 more
core   +1 more source

Northeast Arctic Cod and Prey Match-Mismatch in a High-Latitude Spring-Bloom System

open access: yesFrontiers in Marine Science, 2021
By combining an ocean model, a nutrient-phytoplankton-zooplankton-detritus-model and an individual-based model for early life stages of Northeast Arctic cod we systematically investigate food limitations and growth performance for individual cod larvae ...
Frode B. Vikebø   +8 more
doaj   +1 more source

CONSTRUCTIVE SOLUTIONS FOR RECREATION AND SPAWNING AREAS FOR FISH, ARRANGED ON THE MEANDERS OF FISH PASSAGE AND SPAWNING CHANNELS

open access: yesEcology and water management, 2022
Purpose: development of constructive solutions for recreation and spawning areas of fish in curvilinear sections of fish passages and fish passages-spawning channels. Materials and methods. The basis of the development is data on the technical, morphometric, flow rate and design characteristics of the fish passage-spawning channels of the Nizhne ...
A. V. Shevchenko, V. N. Shkura
openaire   +1 more source

GIS-BASED EXPERIENCE OF INVESTIGATING THE STATUS OF SPAWNING AREAS WITHIN THE UPPER SECTION OF THE TSIMLYANSK RESERVOIR

open access: yesInterCarto. InterGIS, 2017
This paper presents a GIS-based research approach to investigating the status and dynamics of spawning areas of the Tsimlyansk Reservoir (within Volgograd Region), one of the largest inland fishery water bodies in the South of Russia.The spawning areas ...
N. S. Kalioujnaia   +4 more
doaj   +1 more source

Comparison on two different methods for assessment of population fertility of the Okhotsk herring on the data of standard roe survey

open access: yesИзвестия ТИНРО, 2023
The main part of the spawning grounds of herring in the northwestern Okhotsk Sea, from the Ayan Bay to the Eirineiskaya Bay, was surveyed on June 3–21, 2022 using standard methods of the roe diving survey.
A. A. Dulenin   +2 more
doaj   +1 more source

Habitat partitioning in Antarctic krill: Spawning hotspots and nursery areas [PDF]

open access: yesPLOS ONE, 2019
Antarctic krill, Euphausia superba, have a circumpolar distribution but are concentrated within the south-west Atlantic sector, where they support a unique food web and a commercial fishery. Within this sector, our first goal was to produce quantitative distribution maps of all six ontogenetic life stages of krill (eggs, nauplii plus metanauplii ...
Perry, Frances A.   +6 more
openaire   +6 more sources

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