Results 21 to 30 of about 3,099 (193)

Atlantic sturgeon Acipenser oxyrinchus and alien sturgeon species in Polish waters: can biometric analysis assist species discrimination and restoration?

Acta Biologica, 2018
Biometric character analyses were conducted on Atlantic sturgeon Acipenser oxyrinchus, a species included in a re-establishment programme in the Baltic Sea basin.
Sławomir Keszka, Remigiusz Panicz
doaj   +1 more source

Domestication may affect spawning performance of F1 pikeperch (Sander lucioperca) during consecutive captive reproduction

Aquaculture Reports
The aim of this study was to examine the possibility of consecutive spawning of the first domesticated generation (F1) of pikeperch (Sander lucioperca).
Bahram Falahatkar, Iraj Efatpanah, Eshagh Rasouli Kargar, Mehdi Rahmati, Pascal Fontaine   +4 more
doaj   +1 more source

Restocking the River Akerselv, Oslo with Atlantic salmon smolts Salmo salar L. of different stocks

Fauna Norvegica, 1990
Sea ranched hatchery-reared smolts of Atlantic salmon originating from the Rivers Imsa and Lone in Norway and Neva in USSR were released in the River Akerselv, in 1985 and 1987.
Lars P. Hansen, Bror Jonsson
doaj   +1 more source

Physical and chemical tagging methods for the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea)

Scientia Marina, 2022
The sea urchin Paracentrotus lividus (Lamarck, 1816) (Echinodermata: Echinoidea) is an important economic resource in Europe, but intense harvesting has led to the collapse of several natural populations.
Pedro M. Santos, Bernardo Ruivo Quintella, David Jacinto, Ana Gomes, Carolina Saldanha, Sílvia Lourenço, Patrícia Mega Lopes, Maria João Correia, David Mateus, Teresa Cruz, Ana Pombo, José Lino Costa   +11 more
doaj   +1 more source

Between and Within Bay Differences in Mesozooplankton Assemblages in the Central and Eastern Baltic Sea: An Exploratory Study

Biological Diversity, EarlyView.
Mesozooplankton assemblages differed significantly both between and within Baltic Sea bays, driven mainly by local salinity and temperature gradients. Distinct communities occurred over distances of less than 1 km, demonstrating strong fine‐scale spatial variability.
Neele Schmidt, Amanda Adam Jansson
wiley   +1 more source

Deniers and Compliers: Unpacking the Heterogeneous Effectiveness of U.S. Stay‐at‐Home Mandates During the COVID‐19 Pandemic

Journal of Applied Econometrics, EarlyView.
ABSTRACT While existing work shows COVID‐19 stay‐at‐home (SAH) policies decreased mobility on average, we lack evidence regarding heterogeneity in policy effectiveness across US counties. To uncover potential heterogeneity, we implement a novel two‐stage approach.
James Sears, Sofia B. Villas‐Boas, Molly Sears, Carly Trachtman, Linlin Fan, Andrew W. Stevens   +5 more
wiley   +1 more source

Detecting slow introgression of invasive alleles in an extensively restocked game bird

Frontiers in Ecology and Evolution, 2014
Interbreeding of two species in the wild implies introgression of alleles from one species into the other only when admixed individuals survive and successfully backcross with the parental species.
Ines eSanchez-Donoso, Ines eSanchez-Donoso, Jisca eHuisman, Jorge eEchegaray, Manel ePuigcerver, José Domingo eRodríguez-Teijeiro, Frank eHailer, Frank eHailer, Carles eVilà   +8 more
doaj   +1 more source

Finding Plankton: A Marine Science Scavenger Hunt for Local Communities

Limnology and Oceanography Bulletin, EarlyView.
Abstract At a time of increasing political polarization and rapidly accelerating climate change, it is important to build public knowledge and empathy toward nature to foster behavioral changes; however, addressing a knowledge deficit can be insufficient to affect these changes.
Hannah M. Budroe, Holly M. Bik
wiley   +1 more source

A Delivery Approach Modeling for Urban Freight Restocking [PDF]

Journal of Civil Engineering and Architecture, 2012
This paper proposes a modeling system developed in order to analyze the urban freight transport and logistics within urban and metropolitan areas. A review of models developed to simulate this segment of mobility is also reported. The review analysis highlights the limits of models for the ex-ante assessment of city logistics measures.
NUZZOLO, AGOSTINO, CRISALLI, UMBERTO, COMI, ANTONIO   +2 more
openaire   +3 more sources

Beyond the Shelf: Navigating Scarcity in the Digital Age

Psychology &Marketing, EarlyView.
ABSTRACT Scarcity is a well‐established marketing tactic, yet its effects in digital retail environments remain less well understood. This research examines how different types of online scarcity cues influence consumer behavior and whether some cues may produce unintended responses.
Jennifer L. Stevens, Stacie F. Waites, Brett Kazandjian   +2 more
wiley   +1 more source