Results 141 to 150 of about 5,496 (181)
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Source and Fate of Lipids in Polar Gelatinous Zooplankton
ARCTIC, 1989The presence or absence of accumulated lipids in arctic and Antarctic medusae and ctenophores was determined by visual examination of living specimens with a dissecting microscope. Lipid accumulations were obvious because of their high refractive indices. Lipids were seen in many of the 200+ gelatinous zooplankton specimens collected.
R.J. Larson, G.R. Harbison
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Measurement of material properties of two gelatinous, coastal zooplankton
The Journal of the Acoustical Society of America, 2007Acoustic scattering models for zooplankton are often used to transform acoustic data (backscattered energy) into biological units (number or size of animals). In order for these models to be used successfully, accurate descriptions of the animals themselves are required including: Species, size, orientation, and their material properties, specifically ...
Joy N. Smith, Joseph D. Warren
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A physical context for gelatinous zooplankton aggregations: a review
Hydrobiologia, 2001The magnitude and extent of jellyfish blooms are influenced not only by the biology and behavior of the animal, but also by the geographic setting and physical environment. Hydrography alone is often thought to cause or favor gelatinous zooplankton aggregations, however, it is clear that interactions between biology of the animal and physics of the ...
William M. Graham +2 more
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Movement ecology of gelatinous zooplankton: approaches, challenges and future directions
Journal of Experimental BiologyABSTRACT Understanding the movement patterns and behavior of marine organisms is fundamental for numerous ecological, conservation and management applications. Over the past several decades, advancements in tracking technologies and analytical methods have revolutionized our ability to study marine animal movements.
Brad J. Gemmell +2 more
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Mesozooplankton and Gelatinous Zooplankton in the Face of Environmental Stressors
2021Mesozooplankton and gelatinous zooplankton communities in Chesapeake Bay (CB) and the northern Adriatic Sea (NAS) have been subject to similar stressors over recent decades, including warming waters, overfishing, urbanization, and eutrophication. Direct comparisons between the systems are clouded by the lack of standardized and sustained long‐term ...
Kogovšek, Tjaša, Lučić, Davor
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GUARD1: An autonomous system for gelatinous zooplankton image-based recognition
OCEANS 2015 - Genova, 2015The GUARD1 system is a low-cost stand-alone instrument for underwater image acquisition and recognition of gelatinous zooplankton. It is designed for installation and autonomous operation on different platforms (e.g. fixed, towed, mobile). Its low cost, small size and low power consumption coupled with a long-life battery pack equipment, make it an ...
Marini +15 more
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Trophic ecology of Arctic gelatinous zooplankton
The overarching goal of this dissertation is to reject the hypothesis of gelatinous zooplankton (GZP) as a trophic dead end for the Arctic and sub-Arctic seas. To do so, I investigated the role of GZP in the diet of different invertebrate and fish species, during different seasons and at different locations.openaire +1 more source
2018
The literature on gelatinous (Cnidaria, Ctenophora, Tunicata) and semi-gelatinous (Chaetognatha) zooplankton from 32 Brazilian estuaries is reviewed. Altogether 104 species have been recorded, 70 cnidarians, 2 ctenophores, 14 chaetognaths, 13 appendicularians and 5 thaliaceans. All groups are understudied with only few detailed data available.
Miodeli Nogueira +4 more
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The literature on gelatinous (Cnidaria, Ctenophora, Tunicata) and semi-gelatinous (Chaetognatha) zooplankton from 32 Brazilian estuaries is reviewed. Altogether 104 species have been recorded, 70 cnidarians, 2 ctenophores, 14 chaetognaths, 13 appendicularians and 5 thaliaceans. All groups are understudied with only few detailed data available.
Miodeli Nogueira +4 more
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Locomotor adaptations of some gelatinous zooplankton.
Symposia of the Society for Experimental Biology, 1986Swimming behaviour and locomotor adaptations are described in chaetognaths, larvacean tunicates, some cnidaria, and thaliacean tunicates. The first two groups swim by oscillating a flattened tail, the others by jet propulsion. In chaetognaths, the locomotor muscle fibres are extensively coupled and relatively sparsely innervated, they exhibit compound ...
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Microplastic Ingestion by Gelatinous Zooplankton May Lower Efficiency of the Biological Pump
Environmental Science & Technology, 2019The impacts of microplastics on some individual organisms have been well studied but what is less clear is what impacts microplastics have on wider ecosystem processes. Using salps as model organisms, we studied the effect of microplastic ingestion on the downward flux of high-density particulate organic matter in the form of salp faecal pellets. While
Wieczorek, Alina +4 more
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