scholarly journals Early line and hook fishing at the Epipaleolithic site of Jordan River Dureijat (Northern Israel)

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0257710
Author(s):  
Antonella Pedergnana ◽  
Emanuela Cristiani ◽  
Natalie Munro ◽  
Francesco Valletta ◽  
Gonen Sharon

Nineteen broken and complete bone fish hooks and six grooved stones recovered from the Epipaleolithic site of Jordan River Dureijat in the Hula Valley of Israel represent the largest collection of fishing technology from the Epipaleolithic and Paleolithic periods. Although Jordan River Dureijat was occupied throughout the Epipaleolithic (~20–10 kya the fish hooks appear only at the later stage of this period (15,000–12,000 cal BP). This paper presents a multidimensional study of the hooks, grooved stones, site context, and the fish assemblage from macro and micro perspectives following technological, use wear, residue and zooarchaeological approaches. The study of the fish hooks reveals significant variability in hook size, shape and feature type and provides the first evidence that several landmark innovations in fishing technology were already in use at this early date. These include inner and outer barbs, a variety of line attachment techniques including knobs, grooves and adhesives and some of the earliest evidence for artificial lures. Wear on the grooved stones is consistent with their use as sinkers while plant fibers recovered from the grooves of one hook shank and one stone suggest the use of fishing line. This together with associations between the grooved stones and hooks in the same archaeological layers, suggests the emergence of a sophisticated line and hook technology. The complexity of this technology is highlighted by the multiple steps required to manufacture each component and combine them into an integrated system. The appearance of such technology in the Levantine Epipaleolithic record reflects a deep knowledge of fish behavior and ecology. This coincides with significant larger-scale patterns in subsistence evolution, namely broad spectrum foraging, which is an important first signal of the beginning of the transition to agriculture in this region.

2003 ◽  
Vol 52 (3-4) ◽  
pp. 155-178 ◽  
Author(s):  
Dafna Gur ◽  
Miryam Bar-Matthews ◽  
Eitan Sass
Keyword(s):  

2016 ◽  
Vol 1 (7) ◽  
Author(s):  
Moshe Gophen

<p>The long history, from Stone-Age period until present, of settling in the HulaValleyis reviewed. This Valley land, 17.7X10<sup>3</sup> ha, was mostly covered by swamps and old Lake Hula. Population size of settlers in the Valle and in close vicinity was very small. The swamps in the Valley were mostly (app 85%) covered by <em>Cyperus papyrus</em> vegetation. Three major headwaters discharges were fluxed through the swampy area into Lake Hula from which the Jordan river outflow continued downstream into Lake Kinneret. Anthropogenic usage of the Hula Valley hydrological and vegetation (Papyrus for mats production and grass for cattle grazing) resources were poorly implemented. During the 1950`s of the 20<sup>th</sup> century the swamps and the Hula Lake were drained and the entire valley land was converted into agricultural utilization. The significance of that environmental modification is discussed.</p>


Author(s):  
John A. Reffner ◽  
William T. Wihlborg

The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.


Author(s):  
Frank J. Longo

Measurement of the egg's electrical activity, the fertilization potential or the activation current (in voltage clamped eggs), provides a means of detecting the earliest perceivable response of the egg to the fertilizing sperm. By using the electrical physiological record as a “real time” indicator of the instant of electrical continuity between the gametes, eggs can be inseminated with sperm at lower, more physiological densities, thereby assuring that only one sperm interacts with the egg. Integrating techniques of intracellular electrophysiological recording, video-imaging, and electron microscopy, we are able to identify the fertilizing sperm precisely and correlate the status of gamete organelles with the first indication (fertilization potential/activation current) of the egg's response to the attached sperm. Hence, this integrated system provides improved temporal and spatial resolution of morphological changes at the site of gamete interaction, under a variety of experimental conditions. Using these integrated techniques, we have investigated when sperm-egg plasma membrane fusion occurs in sea urchins with respect to the onset of the egg's change in electrical activity.


2017 ◽  
Vol 2 (1) ◽  
pp. 56-68 ◽  
Author(s):  
Amy L. Donaldson ◽  
Karen Krejcha ◽  
Andy McMillin

The autism community represents a broad spectrum of individuals, including those experiencing autism, their parents and/or caregivers, friends and family members, professionals serving these individuals, and other allies and advocates. Beliefs, experiences, and values across the community can be quite varied. As such, it is important for the professionals serving the autism community to be well-informed about current discussions occurring within the community related to neurodiversity, a strengths-based approach to partnering with autism community, identity-first language, and concepts such as presumed competence. Given the frequency with which speech-language pathologists (SLPs) serve the autism community, the aim of this article is to introduce and briefly discuss these topics.


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