Podcasts about copepods

Numbers DO Lie: Displaced abomasum; Italian pasta; Laundry-grade glycerin; Copepods in New York water; Milk from many cows; Volume vs. weight; Shiur challah; Heat vs. temperature; Wine in Canadian whisky; Concentrated wine; See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

In this episode of Saltwater Aquarium Radio we talk about how to My Clownfish Breeding project and my plans to make it happen in todays episode. Also I answer a question on live sand for copepods. [...] The post Saltwater Aquarium Radio Podcast 297: Clownfish Breeding and Live Sand for Copepods appeared first on Saltwater Aquarium Radio.

In this episode of Saltwater Aquarium Radio we talk about success with copepods in your reef . Also I answer a question on dealing with Green Hair Algae. Be sure to check out check out [...] The post Saltwater Aquarium Radio Podcast 273: Success With Copepods In Your Reef Tank appeared first on Saltwater Aquarium Radio.

Kashrus Rulings of Rav Feivel Cohen (first yahrtzeit): Copepods in New York City Water (visible but not recognizable, spawned in the water system); Mechiras chametz; Chametz medicine for a choleh; Vinegar of unknown Pesach status; Spray dryer kashering; Kashering plastic; Keurig machine tevillah; Stam yayin for a mumar See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠www.kashrushalacha.com

On today's show,  we're going to meet a duck that's far from home, We''ll learn about a program which is helping Indigenous teenagers become the first high school graduates in their families. We'll take a trip to western NSW and visit what's soon to be the state's biggest national park. Before we head into space and find out what bush tucker might grow on the international space station. And we meet a 97 year old zoologist who's discovered more than 40 new creatures. QUESTIONS: What is the name of the duck that was far from home? How many students have graduated from the National Aboriginal Sporting Chance Academy since it began? What is the name of the farm that is being turned into a huge National Park? How do students experiment on Earth, possible foods that could be grown in space? How many Copepods has Dr Vernon Harris discovered? BONUS TRICKY QUESTION: How big is Thurlooo Downs? ANSWERS: The Musk Duck. 15,000. Thurloo Downs. They do these experiments using special growth chambers that have the same conditions that astronauts have in space, like certain levels of light, heat and oxygen. More than 40 new species. BONUS TRICKY ANSWER: 437,000 hectares.

Producer/Host: Sarah O’Malley This episode highlights Calanus finmarchicus, a tiny crustacean that serves as a keystone species in north Atlantic food webs. North Atlantic Right Whales, commercially important fish and virtually all other predators in the north Atlantic feed on it because of its high nutrient content. C. finmarchicus likewise feeds heavily on phytoplankton and is a major conduit for moving primary productivity into the greater food web. About the host: Sarah O’Malley is an ecologist, naturalist and science communicator passionate about deepening her listeners’ experiences with the natural world. She teaches biology and sustainability at Maine Maritime Academy and is currently collaborating on a guide book to the intertidal zone in the Gulf of Maine. The post The Essential Rhythm 4/9/23: Yummy Yummy Copepods first appeared on WERU 89.9 FM Blue Hill, Maine Local News and Public Affairs Archives.

Permitted Insects: Grasshoppers; Never moved; Anisakis; Copepods; Dried; Size. See seforim by Rabbi Cohen at www.kashrushalacha.com

Recently, I have been thinking about the food chain that sustains the wildlife here. Where does it begin? When did it begin? What if I looked more deeply than what I can see with my eye? I want to learn about the microbiome of this wonderful area.

Is it possible toANTicipatechange? Simon Sinek argues that most attempts to change things for the better are actually doomed to fail because we're always chasing the patterns of the past instead of moving forward. We need to create "customer dreams" for ourselves and then trust that the universe will help us achieve them.

'Plankton" consists of phytoplankton (~plants) and zooplankton (-animals). It represents the basis of the ocean food chain and it includes many species; it's a very complex 'multi-species soup' representing a true science frontier hardly tackled, understood or managed yet. Copepods are part of that taxonomic set up and they contribute usually to the majority - up to 70% - of zooplankton abundance in oceans. Using field data of the Italian National Antarctic Program from the 1980s and 1990s here we model-predict in an interdisciplinary international team effort for 26 copepod species at three ocean depth classes (0-10m, 11-70m, 71-750m) the relative index of occurrence (RIO) for the wider study area of the Ross Sea Region Marine Protected Area (a world-record MPA and ocean wilderness area of global size and relevance). This research uses Machine Learning/AI ensembles and Open Source Geographic Information System (GIS) methods to generalize from the Open Access dataset available from the Global Biodiversity Information Facility (GBIF.org) using the 'Macroscope predictors' (see Huettmann et al. 2015 for details, source and use). Further details are provided in Grillo et al. (2022; compare also with Pinkerton et al. 2010). This work matters as a global workflow template and it allows to obtain 3D models in GIS for plankton abundance, e.g. as needed for foraging estimates of marine mammals, penguins and fisheries. It can also be used for life-history research, carbon sequestration work in climate models as well as for baselines in carrying capacity formulas for fisheries and generic predator-prey studies. The relevance of sound harvest models for krill and fish, e.g. in the so-called 'experimental' fisheries work with CCAMLR and the MPA in the Ross Sea has been outlined by Ainley et al. (2012) and others. Here we offer a solution towards sustainability in times of a generic ocean crisis. References (selection; in order of citation) Grillo M, F. Huettmann, L. Guglielmo and S. Schiaparelli (2022) Three-Dimensional Quantification of Copepods Predictive Distributions in the Ross Sea: First Data Based on a Machine Learning Model Approach and Open Access (FAIR) Data. Diversity 14:355. https://doi.org/10.3390/d14050355 Huettmann, F., M.S. Schmid, and G.R.W. Humphries (2015) A First Overview of Open Access Digital Data for the Ross Sea: Complexities, Ethics, and Management Opportunities. Hydrobiologia 2015, 761, 97–119. Pinkerton, M. H., A.N. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve (2010). Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees. Deep Sea Research Part I: Oceanographic Research Papers 57: 469-485. Ainley, D.G., C.M. Brooks, J.T. Eastman and M. Massaro (2012) Unnatural Selection of Antarctic Toothfish in the Ross Sea, Antarctica. In Protection of the Three Poles; Springer: Berlin/Heidelberg, Germany, pp. 53–75.0 (Photo credit: Andrei Savitsky - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=78800127) --- Support this podcast: https://anchor.fm/falk-huettmann/support

Copepods. They are among the most abundant multicellular animals on earth and generally regarded as the most numerous in the Chesapeake, with numbers routinely as high as 30,000 per cubic meter of water in some areas. They are a keystone food source for virtually every fish species in the Bay. But it takes a 3X hand lens to bring them clearly into view. In fact, they fly so far under the radar that their species don't even qualify for common names. Only the Latin Eurytemora affinis and Acartia tonsa are used to identify them. In this episode, John Page Williams brings into focus one of the tiny--but important--mysteries of the Chesapeake. If you liked this episode, please give us a thumbs up and share your comments, it really helps us to spread these seasonal stories to new listeners. https://www.cbf.org/news-media/multimedia/podcasts/chesapeake-almanac/march-copepods-keystones-of-spring.html (TRANSCRIPT) Subscribe to Chesapeake Almanac, find us on your favorite podcast platform, or visit our podcast page at https://www.cbf.org/ChesapeakeAlmanac (https://www.cbf.org/ChesapeakeAlmanac). Chesapeake Almanac is provided by the Chesapeake Bay Foundation - Saving the Bay through Education, Advocacy, Litigation, and Restoration. Find out more about our work to save the Chesapeake Bay and its watershed's rivers and streams, and what you can do to help, at https://www.cbf.org (https://www.cbf.org). These readings are from John Page Williams, Jr.'s book, Chesapeake Almanac: Following the Bay through the Seasons. The publication is available in print at https://www.amazon.com/Chesapeake-Almanac-Following-Through-Seasons/dp/0870334492/ref=sr_1_1 (Amazon.com).

In this episode, we'll be exploring the world of parasitic copepods! We'll also talk about Jimmy's decision to be infected with 50 hookworms in the name of science! (0:00:49) Working at the Natural History Museum: Parasitic Copepods.  (0:02:24) How do you tell if a copepod is parasitic? (0:04:28) What parasitic copepods live on. (0:05:34) Once a host is infected, is it still edible? (0:06:50) How to find a parasitic copepod on a specimen.  (0:07:39) Rock bass and the parasites that live on them: Trematodes. (0:09:55) White spots on fish. (0:10:26) Parasitic copepods in the ocean. (0:11:44) Copepods and parasitic copepods on corals. (0:13:48) Studying parasitic copepods: Where all the data comes from. (0:15:19) The coolest copepods: Marine invertebrates and sea squirts.  (0:18:01) Notodelphyidae and the search for photos. (0:19:58) The World Association of Copepodologists. (0:21:54) Parasitic copepods and climate change. (0:23:31) Evolving parasites: The generalist and the specialist. (0:24:56) The early life cycle of a parasitic copepod. (0:27:01) The mating process of parasitic copepods. (0:28:38) The journey to studying parasitic copepods: Dr.Janine Caira and tapeworms. (0:31:23) The captivating process and longevity of sample preparation. (0:33:32) The study of parasites and how it changes how we see the world. (0:36:25) The dramatic and diverse microscopic world. (0:39:59) Planarians. (0:42:52) Jumping to the study of copepods: A fascination about evolution. (0:46:00) The problems with parasitic nematodes and our health. (0:48:06) Developing a vaccine for hookworms: A challenge study. (0:49:31) Being infected with 50 hookworms. (0:52:00) Hookworm secretions and seasonal allergies. (0:53:59) Weightlifting, volleyball and a love of reading. (0:54:57) The Left Hand of Darkness: Ahead of its time. Visit Jimmy's website: https://jimmybernot.com/ Follow Jimmy on Twitter: https://twitter.com/jimmybernot?lang=en Visit Planet B612 on the web: http://planetb612.fm/ Follow Planet B612 on Twitter: https://twitter.com/PlanetB612fm

Join Ellen & special guest, evolutionary biologist Jimmy Bernot, for a review of the microscopic crustaceans truly running the world, copepods! In this episode, we discuss what makes copepods so successful at what they do, the role that parasites play in an ecosystem, and the biodiversity you can find among fish boogers. Intro & outro music: "Adventuring", Louie Zong

Join Ellen & special guest Jimmy Bernot for a review of the microscopic crustaceans truly running the world, copepods! In this episode, we discuss what makes copepods so successful at what they do, the role that parasites play in an ecosystem, and the biodiversity you can find among fish boogers.

Rabbi Langer, Dayan at the Chicago Rabbinical Council, is the Rabbinical Coordinator of their Toylaim division. He is the Rav of Congregation Beis Yitzchok and a posek of the Midwest Beis Horaah.

Today we’re gonna CREATURECISE! We’re gonna see some of the most impressive animal athletic feats! Woodcocks love to boogie! Dung beetles are gymnasts! Bats do crunches every time they pee! Discover this and more as we answer the age-old question: Are dolphins jerks?  Footnotes: Woodcock dancing: Chameleon video to soothing classical music:  Dance of the dung beetle:  Baby bat learning to backflip and pee!  Klipspringer jumping around: Copepods swimming:  Impressive copepod jump:  Spinner dolphins!! Fishing spiders walking on water: Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

Today we’re gonna CREATURECISE! We’re gonna see some of the most impressive animal athletic feats! Woodcocks love to boogie! Dung beetles are gymnasts! Bats do crunches every time they pee! Discover this and more as we answer the age-old question: Are dolphins jerks?  Footnotes: Woodcock dancing: Chameleon video to soothing classical music:  Dance of the dung beetle:  Baby bat learning to backflip and pee!  Klipspringer jumping around: Copepods swimming:  Impressive copepod jump:  Spinner dolphins!! Fishing spiders walking on water: Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

Nachdem wir gestern viel über Kieselalgen geredet haben, erfahren wir heute von was diese wunderschönen Zellen unter anderem gefressen werden: Hinter Türchen 8 versteckt sich die Calanoida! Anna erzählt uns, was überhaupt Zooplankton ist und dass sie sich in Temoridae sie sich verliebt hat...

Based at the Climate Impacts Research Station, we take you into the field with scientists as they investigate climate change in an Arctic environment. We're with Steph Owens and Danny Lau, sampling copepods, a type of tiny crustacean that lives in the water to measure growth rates in different types of pond to see how they react to an increase in organic matter, which is likely to occur with climate change.Get in touch: Tweet @ArcticCIRC  @emmabrisdion www.arcticirc.net

A novel and interesting approach to detect microfluidic dynamics at a very small scale is given by optically trapped particles that are used as optofluidic sensors for microfluidic flows. These flows are generated by artificial as well as living microobjects, which possess their own dynamics at the nanoscale. Optical forces acting on a small particle in a laser beam can evoke a three dimensional trapping of the particle. This phenomenon is called optical tweezing and is a consequence of the momentum transfer from incident photons to the confined object. An optically confined particle shows Brownian motion in an optical tweezer, but is prevented from long term diffusion. A careful analysis of the motion of the confined particle allows a precise detection of microfluidic flows generated by an artificial or living source in the close vicinity of the particle. Thus, the particle can be used as a sensitive optofluidic detector. For this aim, several optical tweezers at different wavelengths are integrated into a dark-field microscope, combined with a high speed camera, to achieve a precise detection of the motion of the center-of-mass of the trapped particle. With this unique experimental system, a gold sphere is used as an optofluidic nanosensor to analyze for the first time the microfluidic oscillations generated by a biological sample. Here, a freely swimming larva of Copepods serves as the living source of flow. However, even if the trapping laser wavelength is off-resonant to the plasmon resonance of the flow detector, a finite heating of the gold nanoparticle occurs which reduces the sensitivity of detection. To increase the sensitivity of the optofluidic detection, a non-absorbing, dielectric microparticle is introduced as the optofluidic sensor for the microflows. It enables a quantitative, two dimensional mapping of the vectorial velocity field around a microscale oscillator in an aqueous environment. This paves the way for an alternative and sensitive detection approach for the microfluidic dynamics of artificial and living objects at a very small scale. To this aim and as a first step, an optically trapped microhelix serves as a model system for the mechanical and dynamical properties of a living microorganism. An optical tweezer is implemented for initiating a light-driven rotation of the chiral microobject in an aqueous environment and the optofluidic detection of its flow field is established. The method is then adopted for the measurement of the microfluidic flow generated by a biological system with similar dynamics, in this case a bacterium. The experimental approach is used to quantify the time-dependent changes of the flow generated by the flagella bundle rotation at a single cell level. This is achieved by observing the hydrodynamic interaction between a dielectric particle and a bacterium that are both trapped next to each other in a dual beam optical tweezer. This novel experimental technique allows the extraction of quantitative information on bacterial motility without the necessity of observing the bacterium directly. These findings can be of great relevance for an understanding of the response of different strains of bacteria to environmental changes and to discriminate between different states of bacterial activity.

This week in the Planet Earth Podcast, how hikers and walkers could be unwittingly changing the landscape by spreading alien species; what it's like to work as a marine biologist in the Arctic in temperatures of minus 40C; and exactly how stable is the West Antarctic Ice Sheet? Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast, how hikers and walkers could be unwittingly changing the landscape by spreading alien species; what it's like to work as a marine biologist in the Arctic in temperatures of minus 40C; and exactly how stable is the West Antarctic Ice Sheet?

This week in the Planet Earth Podcast, how hikers and walkers could be unwittingly changing the landscape by spreading alien species; what it's like to work as a marine biologist in the Arctic in temperatures of minus 40C; and exactly how stable is the West Antarctic Ice Sheet? Like this podcast? Please help us by supporting the Naked Scientists

Copepods in New York City Water Background Moschim and nov'im Three opinions Buy the book at www.kashrushalacha.com

Copepods, you think you know them? well in this show im joined by Dr. Adelaide Rhodes, a world recognized expert on Copepods. Adelaide will take us though the in's and out's of copepods and what they mean to out tanks today, and in the future. In this show we discuss - What are copepods - Identifying copepods - What are copepods good for - How to get copepods in your system - Breeding copepods in and out of your tank - And much more

Heres the deal, as you know i wasn't planning on releasing a show this week, but i wanted to. so sitting back thinking of a topic, i was thinking why dont i get voicemails, those would be great for topics, then i realized i hadn't check the VM line in a while, well there was some there.. so check this quick Q&A show and also some other podcast recommendation i make after the topic Questions discussed * Keeping Mandarins * Freshwater and iodine dips * Removing copper from aquariums * Copepods and Amphipods

The experiments presented in this thesis elucidate selected interactions between the phytoplankton, the zooplankton and the microbial food web in aquatic ecosystems. The objective is to provide a mechanistic understanding of classic general ecology topics including competition, predator-prey relations, food web structure, succession, and transfer of matter and energy. Special relevance is attributed to the role of mixotrophic organisms, marine cladocerans, and gelatinous mesozooplankton. Although they may contribute substantially to plankton composition they have thus far been neglected in common ecosystem models. All experiments were based on enrichment with nutrients and organic compounds. Enrichment with nutrients and organic compounds that influence overall system productivity is one of the most pervasive human alterations of the environment and profoundly affects species composition, food web structure, and ecosystem functioning. In order to predict the consequences of such enrichment, a better understanding of the impact that trophic structure has on community dynamics and ecosystem processes is required. The presented thesis consists of two studies. The first study includes three experiments in which I investigated the role copepods, cladocerans and doliolids play in plankton interactions. Copepods, cladocerans and doliolids are major mesozooplankton groups in marine systems. The first experiment (Katechakis et al. 2004) showed that copepods, cladocerans and doliolids have different food size spectra and different assimilation efficiencies. According to my experiment, copepods actively select for larger food items, whereas cladocerans and doliolids passively filter medium-sized and small food items, respectively, with doliolids being the only group that feeds efficiently on bacteria and picoplankton. The results illustrate that food niche separation enables copepods, cladocerans and doliolids to coexist. In addition, they emphasize the fact that doliolids are favored in low nutrient environments, characterized by small food items, whereas cladocerans and copepods have competitive advantages at moderate and high nutrient supplies, respectively. Furthermore, copepods obviously utilize ingested food best, gauged in terms of produced biomass, followed by cladocerans and doliolids, which suggests that the different mesozooplankton have different impacts on energy transfer efficiency within the food web. In the second experiment (Katechakis et al. 2002), I investigated how copepods, cladocerans and doliolids directly influence the phytoplankton and the microbial food web over a longer period of time by grazing. Furthermore, I investigated how they indirectly influence the system's nutrient dynamics through "sloppy feeding" and their excretions. According to my experiment, in the long run, doliolids and cladocerans promote the growth of large algae whereas copepods shift the size spectrum towards small sizes with different consequences for food chain length. Doliolids, cladocerans and copepods also affect the microbial food web in different ways. Size-selective grazing may lead to differences in the nanoplankton concentrations. These in turn can affect bacterial concentrations in a trophic cascade. My findings offered the first experimental evidence for the occurrence of top-down effects in marine systems. Although top-down explanations of phytoplankton size structure had been acknowledged for limnic systems before, they had not been attempted for marine systems. In the last experiment of this series (Katechakis and Stibor 2004) I sought to complement the knowledge about the feeding behavior of marine cladocerans. Marine cladocerans are difficult to cultivate in the laboratory. Therefore, the three cladoceran genera found in marine systems, Penilia, Podon and Evadne, had never before been compared under similar conditions. Existing studies with single cladoceran genera were to some extent contradictory. My experiments indicate similar feeding characteristics for Penilia, Podon and Evadne, that is to say, similar food size spectra, clearance and ingestion rates. However, Evadne obviously has problems feeding on motile prey organisms. The results generated by my first study have been summarized and their importance has been hypothetically extended to ecosystem level by Sommer et al. (2002) and by Sommer and Stibor (2002). My second study includes two experiments that refer to the ecological role of mixotrophs in aquatic systems. Mixotrophic organisms combine phototrophic and phagotrophic production dependent on the availability of light and nutrients. Although they are common in aquatic systems, their function for nutrient cycling and as a link to higher trophic levels has never before been examined. In my first experiment (Katechakis et al. 2005) I investigated if mixotrophs influence energy transfer efficiency to higher trophic levels differently than predicted for purely phototrophic organisms. My results indicate that compared to phototrophic specialists mixotrophs may enhance transfer efficiency towards herbivores at low light conditions and in situations when limiting nutrients are linked to bacteria and to the picoplankton. Additionally, the results suggest that mixotrophs may have a stabilizing effect on variations in trophic cascade strength caused by perturbations to light and nutrient supply ratios. My second experiment (Katechakis and Stibor 2005a) served as a first step towards analyzing if the results gained from the first experiment have any ecological relevance in situ, that is, if mixotrophs in nature-like communities can gain enough importance to relevantly influence transfer efficiency and system stability. Competition experiments revealed that mixotrophs may invade and suppress plankton communities that consist of purely phototrophic and purely phagotrophic specialists at low nutrient conditions while high nutrient supplies prevent mixotrophs from successfully invading such communities. In systems where mixotrophs suppressed their specialist competitors they indeed had a habitat-ameliorating effect for higher trophic levels, gauged in terms of plankton food quality.

Sat, 1 Jan 1994 12:00:00 +0100 http://epub.ub.uni-muenchen.de/5079/ http://epub.ub.uni-muenchen.de/5079/1/039.pdf Bosch, F. van den; Gabriel, Wilfried Bosch, F. van den und Gabriel, Wilfried (1994): A model of growth and development in copepods. In: Limnology and Oceanography, Vol. 39, Nr. 7: pp. 1528-1542. Biologie

Tue, 1 Jan 1991 12:00:00 +0100 http://epub.ub.uni-muenchen.de/5075/ http://epub.ub.uni-muenchen.de/5075/1/5075.pdf Bosch, F. van den; Gabriel, Wilfried Bosch, F. van den und Gabriel, Wilfried (1991): The impact of cannibalism on the population dynamics of cyclopoid copepods. In: Verhandlungen / International Association of Theoretical and Applied Limnology, Vol. 24: pp. 2848-2850. Biolo

Mon, 1 Jan 1962 12:00:00 +0100 http://epub.ub.uni-muenchen.de/3421/ http://epub.ub.uni-muenchen.de/3421/1/3421.pdf Clarke, G. L.; Conover, Robert J.; David, Charles N.; Nicol, J. A. C. Clarke, G. L.; Conover, Robert J.; David, Charles N. und Nicol, J. A. C. (1962): Comparative studies of luminescence in copepods and other pelagic animals. In: Journal of the Marine Biological Association of the UK, Vol. 42: pp. 541-566. Biolog