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  • March 31, 2017
  • 10:16 AM
  • 175 views

The Snail That Only Lives in a Hole inside Another Hole under a Sea Urchin

by Elizabeth Preston in Inkfish



If you think house hunting is hard, consider the plight of this snail. It lives only in tide pools in southern Japan. Within those tide pools, it only lives in holes carved out of rock—specifically, holes dug by sea urchins. But it can only move into one of those holes after the hole-digging urchin has moved out. When a second, differently shaped sea urchin moves into the hole, it leaves a gap between its spiny body and the wall of the burrow. It's this nook that the snail snuggles int........ Read more »

  • February 24, 2017
  • 06:18 PM
  • 285 views

Symbiote Separation: Coral Bleaching and Climate Change

by Melissa Chernick in Science Storiented

It’s been a while since I’ve broken down some studies for you, so I took on a big one.I’m sure you’ve heard of coral bleaching. What is it? Why does it happen? Why does it matter? To start off, you need to know a little bit more about the individuals that make up a head (fan, whip, etc.): the polyp. Coral polyps look like tiny plants but are actually tiny animals (less than ½ an inch in diameter). They produce calcium carbonate to create a protective shell or skeleton that, when thousan........ Read more »

  • January 27, 2017
  • 09:38 AM
  • 116 views

Does fishing influence how sensitive fish stocks are to climate?

by sceintists from the Marine group at CEES in Marine Science blog

High fishing pressure tends to lead to proportionally fewer old and large individuals in fish stocks. It is feared that these demographic changes make the fish stocks more sensitive to climate variability and change. Statistical analysis of long-term survey data on cod eggs throws new light on the possible mechanisms.



... Read more »

Stige, L., Yaragina, N., Langangen, Ø., Bogstad, B., Stenseth, N., & Ottersen, G. (2017) Effect of a fish stock's demographic structure on offspring survival and sensitivity to climate. Proceedings of the National Academy of Sciences, 201621040. DOI: 10.1073/pnas.1621040114  

  • January 13, 2017
  • 02:30 PM
  • 92 views

Joining forces makes Nordic Universities stronger

by sceintists from the Marine group at CEES in Marine Science blog




In March 2016, a Memorandum of Understanding for Seas of Norden Research School (SEANORS) promoting collaborative marine research and training in the Nordic countries was signed by the rectors of 9 Nordic universities.

... Read more »

Paasche, �., Österblom, H., Neuenfeldt, S., Bonsdorff, E., Brander, K., Conley, D., Durant, J., Eikeset, A., Goksøyr, A., Jónsson, S.... (2015) Connecting the Seas of Norden. Nature Climate Change, 5(2), 89-92. DOI: 10.1038/nclimate2471  

  • November 8, 2016
  • 03:49 AM
  • 61 views

Reproductive strategy of Northeast Arctic cod

by sceintists from the Marine group at CEES in Marine Science blog




Spawning time and location are important factors affecting the reproductive cycle for migratory fish by potentially affecting offspring survival and growth. We examine this relationships by using a drift model for early life stages (eggs to age 1) of the Northeast Arctic cod combined with empirical estimates of spatial variation in mortality at two different life stages (Langangen
et al. 2016).

... Read more »

Davis, D. Lack. (1955) The natural regulation of animal numbers. The Quarterly Review of Biology, 30(2), 157-158. DOI: 10.1086/400774  

Bridget S. Green. (2008) Maternal Effects in Fish Populations. Advances in Marine Biology, 1-105. DOI: 10.1016/S0065-2881(08)00001-1  

Ciannelli, L., Dingsør, G., Bogstad, B., Ottersen, G., Chan, K., Gjøsæter, H., Stiansen, J., & Stenseth, N. (2007) Spatial anatomy of species survival: Effects of predation and climate -driven environmental variability. Ecology, 88(3), 635-646. DOI: 10.1890/05-2035  

  • October 25, 2016
  • 07:35 PM
  • 450 views

Why do polar bears mock battle? and other facts about polar bear reproduction

by Emily Makowski in Sextraordinary!

Inspired by an Instagram photo of polar bears playfighting, I decided to find out more about this strange behavior and learned many interesting things about polar bear reproduction.... Read more »

Fitzgerald KT. (2013) Polar bears: the fate of an icon. Topics in Companion Animal Medicine, 28(4), 135-42. PMID: 24331553  

  • September 18, 2016
  • 07:03 AM
  • 584 views

5 Things We Learned This Week | Open-Access Science | Week 37, 2016

by TakFurTheKaffe in Tak Fur The Kaffe

New theories in ocean circulation and acidification, shorter sea ice season in polar bear habitats, and new tools to track bird migrations and hair protein analysis in forensic IDs. Here are five of the latest scientific studies published open-access this week.... Read more »

Stern, H., & Laidre, K. (2016) Sea-ice indicators of polar bear habitat. The Cryosphere, 10(5), 2027-2041. DOI: 10.5194/tc-10-2027-2016  

Shamoun-Baranes, J., Farnsworth, A., Aelterman, B., Alves, J., Azijn, K., Bernstein, G., Branco, S., Desmet, P., Dokter, A., Horton, K.... (2016) Innovative Visualizations Shed Light on Avian Nocturnal Migration. PLOS ONE, 11(8). DOI: 10.1371/journal.pone.0160106  

Parker, G., Leppert, T., Anex, D., Hilmer, J., Matsunami, N., Baird, L., Stevens, J., Parsawar, K., Durbin-Johnson, B., Rocke, D.... (2016) Demonstration of Protein-Based Human Identification Using the Hair Shaft Proteome. PLOS ONE, 11(9). DOI: 10.1371/journal.pone.0160653  

  • September 7, 2016
  • 06:17 PM
  • 587 views

Girls only, literally: global warming and sea turtle sex ratios

by Emily Makowski in Sextraordinary!

The sex of sea turtle offspring is largely dependent on temperature, and global warming could lead to problems where populations are mostly/all female. However, sea turtles have a trick up their sleeve (in their shells?) that may make them more resilient to the effects of global warming than previously thought.... Read more »

  • June 8, 2016
  • 03:05 AM
  • 46 views

Cascades in the Barents Sea

by sceintists from the Marine group at CEES in Marine Science blog




Mass mortality events are events that cause elevated mortality that may reduce the population size over a short period. Such events are likely on the rise across the globe and for several taxa (Fey et al. 2015). We recently investigated how such events may affect the community of interacting species in the Barents Sea. For this investigation, we constructed a multi-species model of a key component of the Barents Sea ecosystem consisting of fish and zooplankton

... Read more »

Langangen, Ø., Ohlberger, J., Stige, L., Durant, J.M., Ravagnan, E., Stenseth, N., & Hjermann, D. (2016) Cascading effects of mass mortality events in Arctic marine communities. Global Change Biology. DOI: 10.1111/gcb.13344  

Fey, S., Siepielski, A., Nusslé, S., Cervantes-Yoshida, K., Hwan, J., Huber, E., Fey, M., Catenazzi, A., & Carlson, S. (2015) Recent shifts in the occurrence, cause, and magnitude of animal mass mortality events. Proceedings of the National Academy of Sciences, 112(4), 1083-1088. DOI: 10.1073/pnas.1414894112  

  • June 1, 2016
  • 09:38 AM
  • 778 views

All hail our eight-limbed overlords

by gdw in FictionalFieldwork

(This is my first attempt to blend science and fiction in a single post. The idea is to write about a recent study or studies but explore it through small snippets of original fiction as well. Hope you like it. Feedback is always greatly appreciated…) # A carefully orchestrated dance of chromatophores flashed Octa’s agreement. […]... Read more »

Doubleday ZA, Prowse TA, Arkhipkin A, Pierce GJ, Semmens J, Steer M, Leporati SC, Lourenço S, Quetglas A, Sauer W.... (2016) Global proliferation of cephalopods. Current biology : CB, 26(10). PMID: 27218844  

  • May 2, 2016
  • 03:50 AM
  • 522 views

A statistical regression approach to estimate zooplankton mortality

by sceintists from the Marine group at CEES in Marine Science blog




It is notoriously difficult to estimate mortality rates for zooplankton populations in the open ocean. In a new paper, Kvile and colleagues demonstrate that mortality estimation can be improved using a statistical regression approach (SRA) that takes into account advection and spatiotemporal trends in recruitment. Using this method on
Calanus finmarchicus survey data from the Norwegian Sea–Barents Sea, they find indications of increased mortality for the old........ Read more »

  • April 17, 2016
  • 03:00 AM
  • 992 views

Week 15 In Review: Open-Access Science | 11 to 17 April

by TakFurTheKaffe in Tak Fur The Kaffe

Swarming Red Crabs, 11,000-year-old shaman headdress, 'superfast' wing muscles, slowdown of giant airstreams, and sexually transmitted infections in Neanderthals. Here are five of the latest scientific studies published open-access this week, ... Read more »

Stadtherr, L., Coumou, D., Petoukhov, V., Petri, S., & Rahmstorf, S. (2016) Record Balkan floods of 2014 linked to planetary wave resonance. Science Advances, 2(4). DOI: 10.1126/sciadv.1501428  

  • March 6, 2016
  • 01:07 PM
  • 424 views

The hand of Code: Developmental transcriptomics in haddock

by scientists from the Marine group at CEES in Marine Science blog

The development of haddock embryos is highly impacted by oil exposure as discussed in a previous post. In a new study Sørhus et al. explored the link between transcriptional changes and developmental processes such as pattern formation and organogenesis. The question is to understand the abnormal development in fish.

... Read more »

  • February 25, 2016
  • 03:05 PM
  • 844 views

Grow, coral, grow!

by dominicwhite in Two Degrees or Under

I was just reading this fascinating article published online yesterday in Nature, called “Reversal of ocean acidification enhances net coral reef calcification“. The study is investigating what effect ocean acidification is having on reefs, a tricky problem as other confounding...... Read more »

Albright, R., Caldeira, L., Hosfelt, J., Kwiatkowski, L., Maclaren, J., Mason, B., Nebuchina, Y., Ninokawa, A., Pongratz, J., Ricke, K.... (2016) Reversal of ocean acidification enhances net coral reef calcification. Nature. DOI: 10.1038/nature17155  

  • February 5, 2016
  • 05:21 AM
  • 641 views

Disentangling the mechanisms behind climate effects on a key zooplankton species

by sceintists from the Marine group at CEES in Marine Science blog




A recently paper published in
PNAS, members of the CEES Marine Group explores potential climate effects on
Calanus finmarchicus, a key zooplankton species in the North Atlantic. The paper shows how the combination of shallow mixed-layer-depth and increased wind apparently increases chlorophyll biomass in spring, and in turn
C. finmarchicus biomass in summer. These findings strongly suggest bottom-up effects of food availability on zoopla........ Read more »

Kvile, K., Langangen, Ø., Prokopchuk, I., Stenseth, N., & Stige, L. (2016) Disentangling the mechanisms behind climate effects on zooplankton. Proceedings of the National Academy of Sciences, 201525130. DOI: 10.1073/pnas.1525130113  

  • January 29, 2016
  • 12:25 AM
  • 826 views

European killer whales face extinction due to banned pollutants

by TakFurTheKaffe in Tak Fur The Kaffe

Levels of the toxic compound PCBs in the marine environment are now so high that they threaten the very existence of some of Europe’s top sea predators, suggests new research. ... Read more »

Jepson, P., Deaville, R., Barber, J., Aguilar, �., Borrell, A., Murphy, S., Barry, J., Brownlow, A., Barnett, J., Berrow, S.... (2016) PCB pollution continues to impact populations of orcas and other dolphins in European waters. Scientific Reports, 18573. DOI: 10.1038/srep18573  

  • January 23, 2016
  • 12:25 AM
  • 860 views

Top four threats to the ocean, according to marine scientists

by TakFurTheKaffe in Tak Fur The Kaffe

Overfishing, global warming, waste and contamination, and ocean acidification are at the forefront of scientists concerns.... Read more »

  • January 21, 2016
  • 08:35 AM
  • 543 views

Climate change and ocean productivity

by sceintists from the Marine group at CEES in Marine Science blog




Marine phytoplankton contribute nearly 50% to global primary production, support zooplankton production and play a vital role in regulating Carbon sequestration. Phytoplankton productivity fluctuations are caused by various direct and indirect effects of temperature, the balance of which show large-scale geographical patterns.

... Read more »

Feng, J., Durant, J., Stige, L., Hessen, D., Hjermann, D., Zhu, L., Llope, M., & Stenseth, N. (2015) Contrasting correlation patterns between environmental factors and chlorophyll levels in the global ocean. Global Biogeochemical Cycles, 29(12), 2095-2107. DOI: 10.1002/2015GB005216  

  • January 12, 2016
  • 12:25 AM
  • 739 views

Sharks smell their way to shore

by TakFurTheKaffe in Tak Fur The Kaffe

New research suggests that Leopard sharks navigate with their nose, using chemical changes in the water to ‘smell’ their way home.... Read more »

  • December 16, 2015
  • 10:13 AM
  • 531 views

Under the surface

by sceintists from the Marine group at CEES in Marine Science blog




Friday 11 December 2015, Kristina Øie Kvile has defended her PhD about the climate effects on
Calanus finmarchicus dynamics with success.

... Read more »

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