Results 51 to 60 of about 15,886 (252)

Multiple spawning of the anchovyEngraulis capensis [PDF]

open access: yesSouth African Journal of Marine Science, 1994
Ovary maturation and spawning behaviour of the anchovy Engraulis capensis are discussed. Histological examination of the testicular and ovarian tissue, together with observations of multiple modes in oocyte size frequency and gonadal indices, suggest serial spawning in the species.
openaire   +1 more source

Rural Labor Supply and Economic Opportunities: Commuting, Migration, Tariffs, and Immigration

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Some rural counties remain dependent on agricultural or manufacturing jobs, but an increasing proportion have diversified economics. Rural counties also differ in their abilities to commute to an urban market characterized by higher wages and labor productivity.
Peter F. Orazem, Mary C. Ahearn
wiley   +1 more source

The Interoperability Challenge in DFT Workflows Across Implementations

open access: yesAdvanced Intelligent Discovery, EarlyView.
Interoperability and cross‐validation remain major challenges in the computational materials science. In this work, we introduce a common input/output standard that enables internal translation across multiple workflow managers—AiiDA, PerQueue, Pipeline Pilot, and SimStack—while producing results in a unified schema.
Simon K. Steensen   +13 more
wiley   +1 more source

The role of venture‐financed startups in innovation for US agriculture

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff   +2 more
wiley   +1 more source

Reproductive biology of the spider crab Leucippa pentagona (Decapoda: Epialtidae), in Bustamante Bay, Argentina Biología reproductiva del cangrejo araña Leucippa pentagona (Decapoda: Epialtidae), en Bahía Bustamante, Argentina

open access: yesLatin American Journal of Aquatic Research, 2011
Sizes at maturity, breeding period, and fecundity of the spider crab Leucippa pentagona in Bustamante Bay, Argentina (45.11°S, 66.56°W) were analyzed. Specimens were collected monthly between May 2006 and February 2008.
Martín Varisco, Julio Vinuesa
doaj  

Pathophysiological Mechanisms of Emaciation Syndrome in Plectropomus leopardus: Insights From Histology and Transcriptomics

open access: yesAnimal Research and One Health, EarlyView.
Integrated phenotypic, histological, transcriptomic, and validation analyses reveal that emaciation syndrome in Plectropomus leopardus is associated with intestinal structural damage, hepatic metabolic remodeling, and muscle protein degradation, highlighting coordinated multi‐tissue alterations underlying disease progression.
Zhihao Zhang   +11 more
wiley   +1 more source

Harnessing blood clot as a native scaffold for orchestrating tissue repairs and regeneration

open access: yesBMEMat, EarlyView.
The blood clot, owing to its dynamic composition and unique microenvironment, holds significant yet underappreciated potential for tissue engineering. This review systematically summarizes the pathophysiology of clot formation, the key regulatory factors shaping its microenvironment, and its applications in both pre‐clinical and clinical settings ...
Gao‐peng Dang   +13 more
wiley   +1 more source

Evidence of nearshore in-lake spawning Walleye in the central basin of Lake Erie

open access: yesJournal of Freshwater Ecology
Walleye Sander vitreus are economically and ecologically vital to Lake Erie and have multiple spawning stocks that contribute to the lakewide population.
Carey T. Knight   +2 more
doaj   +1 more source

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

open access: yesBiological 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

Spawning ascent durations of pelagic spawning reef fishes

open access: yesCurrent Zoology, 2012
Predation risks have been hypothesized to influence spawning behaviors of coral reef fishes that broadcast gametes pelagically. The duration of spawning ascents of 13 species were measured from video footage at a single spawning site for multiple coral ...
Caroline A. HABRUN, Gorka SANCHO
doaj  

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