Results 31 to 40 of about 53,398 (254)
An Interdisciplinary Sustainability Evaluation of the Skate Fishery in the Gulf of Alaska [PDF]
, 2012 Skates are in growing demand worldwide, and the 2008 U.S. landings of skates was estimated at 65 million pounds, worth $11 million. However, many Atlantic Ocean skate stocks are collapsing.
Farrugia, Thomas
core
Dental crown morphological variation and heterodonty in carcharhiniform sharks
The Anatomical Record, EarlyView.Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley +1 more source
Mitochondrial DNA. Part B. Resources, 2021 In this study, the complete mitochondrial genome of Norwegian skates imported to Korea was sequenced with a circular molecule of 17,121 bp, which consisted of 13 protein-coding genes (PCGs), 2 ribosomal RNAs, 22 transfer RNA genes, and a control region ...
Moo-Sang Kim +5 more
doaj +1 more source
Closed circuit TV system monitors welding operations [PDF]
, 1967 TV camera system that has a special vidicon tube with a gradient density filter is used in remote monitoring of TIG welding of stainless steel.
Gilman, M.
core +1 more source
Biological Reviews, EarlyView.ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson +9 more
wiley +1 more source
Frontiers in Marine Science, 2022 The Celtic Sea is a productive fishing ground, therefore identifying the relative importance of fishing and environmental factors on fish stock dynamics is crucial for developing our understanding of sustainable yields and to operationalize Ecosystem ...
Jed Kempf +4 more
doaj +1 more source
Emerging patterns of species richness, diversity, population density, and distribution in the skates (Rajidae) of Alaska [PDF]
, 2008 Six years of bottom-trawl survey data, including over 6000 trawls covering over 200 km2 of bottom area throughout Alaska’s subarctic marine waters, were analyzed for patterns in species richness, diversity, density, and distribution of skates. The Bering
Hoff, Gerald R. +3 more
core
Biological Reviews, EarlyView.ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz +6 more
wiley +1 more source
A nursery site of the Alaska skate (Bathyraja parmifera) in the eastern Bering Sea [PDF]
, 2008 A nursery site for the Alaska skate (Bathyraja parmifera) was sampled seasonally from June 2004 to July 2005. At the small nursery site (~2 km2), located in a highly productive area near the shelf-slope interface at the head of Bering Canyon in the ...
Hoff, Gerald R.
core
, 2017 The friction of a stationary moving skate on smooth ice is investigated, in particular in relation to the formation of a thin layer of water between skate and ice.
van Leeuwen, J. M. J.
core +4 more sources