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1. Activity of Marine Biology Institute
 
2. Marine biology: Experiments and
 
3. Marine Biology and Oceanography:
 
4. Homing and related activities
 
5. Marine Biology and Oceanography
 
6. Marine Biology and Oceanography:
7. Discovering the Living Ocean:
 
$3.83
8. The Ocean Book: Aquarium and Seaside
 
$4.98
9. The Marine Biology Coloring Book
$8.95
10. Characterisation and antimicrobial
$10.95
11. Temperature dependence of superoxide
$8.95
12. Activity patterns in northern
$10.95
13. Rhythmic swimming activity in
$10.95
14. Neuronal cholinergic control is
$8.95
15. Comparison of diet and feeding
$10.95
16. Environmental influence on activity
$8.95
17. Activity and shelter use of an
$10.95
18. Effect of temperature and salinity
$8.95
19. Phylogenetic differences in cardiac
$10.95
20. Daily and circadian rhythms of

1. Activity of Marine Biology Institute
by V. N Greze
 Unknown Binding: 11 Pages (1975)

Asin: B0006X82G0
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2. Marine biology: Experiments and activities
by Carol L Matthews
 Unknown Binding: Pages (1989)

Asin: B000726COY
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3. Marine Biology and Oceanography: Experiments and Activities/Student Manual
by Carol L. Matthews, Douglas L. Matthews
 Paperback: Pages (1991-04)
list price: US$31.95
Isbn: 0962935719
Average Customer Review: 5.0 out of 5 stars
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Customer Reviews (1)

5-0 out of 5 stars Marine Science Lab Manual
Minimum order is 25 lab manuals at [money] each plus shipping. Perfect for new and veteran teachers of Marine Science. Used in over 900 schools nationally and continually updated over last ten years. This is a complete Student Manual of 45 labs that may be ordered by teachers. With that the teacher receives a complete teacher guide with CD containing all lab answers, syllabus, daily lesson plans, 200 pages of full color illustrated daily lecture notes to fill in the days betwen labs (these may be printed from CD onto clear acetate for use as overheads or from light projector through computer). Perfectly suited for private schools where students pay for consumables. The public school version is a site license, listed as a teacher pack, under the same name, Marine Biology and Oceanography Experimenrs and Activities... ... Read more


4. Homing and related activities of birds, (Papers from the Dept. of Marine Biology of the Carnegie Institution of Washington)
by John B Watson
 Hardcover: 128 Pages (1915)

Asin: B000865SL2
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5. Marine Biology and Oceanography Experiments & Activities/Teacher's Pack w/CD-Rom
by Carol L. Matthews
 Hardcover: Pages (1991-04)
list price: US$179.50
Isbn: 0962935727
Average Customer Review: 5.0 out of 5 stars
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Customer Reviews (1)

5-0 out of 5 stars Marine Biology and Oceanography Experiments and Activities
Very complete course materials for new and veteran teachers of Marine Science. Full syllabus, daily lesson plans, 45 labs (that really work in the classroom, only 3 need water access) and lecture notes in 20pt. type with graphics and images to fill in all days between labs for use on overhead projector or light projector from computer. Two sets of tests for all units. Revised and updated over ten years, used in over 900 schools nationally. Complete table of contents and samples of labs and lecture notes on web at teacherpress.net. ... Read more


6. Marine Biology and Oceanography: Experiments and Activities/Professional Sample
by Carol L. Matthews
 Paperback: Pages (1991-04)
list price: US$17.95
Isbn: 0962935700
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7. Discovering the Living Ocean: A Manual of Field and Laboratory Activities
by Paul Detwiler
Spiral-bound: 362 Pages (2009-04-30)
list price: US$36.95
Isbn: 1602501343
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Editorial Review

Product Description
Discovering the Living Ocean provides an engaging, easy-to-read, and relevant marine biology manual for high school and community college students who have no previous background in biology. The approach uses a variety of exercises and activities that challenge and inspire students to learn more about the ocean and the multifaceted disciplines that marine biologists employ in their work: microbiology, zoology, phycology, anatomy, physiology, ecology, and oceanography (to name a few). The manual also serves as a workbook designed for writing answers to the questions posed in each activity. The laboratory and field activities in Discovering the Living Ocean guide students in making close, detailed observations that lead to questions and then to hypotheses that can be developed and tested. A glossary defines unfamiliar terms used in the book and lab. An accompanying instructional DVD helps students understand the procedures being used in each activity and takes them through the steps required to complete each lab. The Teacher Guide includes lists of supplies, organisms, and equipment needed for each activity (and lists the sources of those materials); provides lab safety considerations; offers suggestions for conducting the lab and/or field procedures; and recommends relevant websites and video resources. The Teacher DVD contains additional video clips that may be used in assessment. The range of activities included in the text allows instructors the flexibility to choose labs that are feasible for their classroom use, their students abilities, their time constraints, and their resources in the classroom and the field. Instructors can also customize the text through Bent Tree Press by cutting, re-ordering, or adding additional content to meet their classroom needs, with additional, customized artwork provided by Bent Tree Press. ... Read more


8. The Ocean Book: Aquarium and Seaside Activities and Ideas for All Ages
by Center for Marine Conservation (CMC)
 Paperback: 128 Pages (1989-05-03)
list price: US$12.95 -- used & new: US$3.83
(price subject to change: see help)
Asin: 0471620785
Average Customer Review: 5.0 out of 5 stars
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Editorial Review

Product Description
Entertaining and educational activities focusing on the ocean and its creatures… The Ocean Book Aquarium and Seaside Activities and Ideas for all Ages This activity book on the world of the oceans and the living things that inhabit them is filled with experiments, investigations, puzzles, games, and all sorts of fun things to do and learn. The activities were created and contributed by the leading aquatic centers in the United States, including the National Aquarium in Baltimore, the Monterey Bay Aquarium in California, Sea World in Ohio, and many others. The activities are designed to teach by doing, and each one has a high entertainment value. Just a few of the topics covered in The Ocean Book include: Whales Seals Sharks Tides Camouflage Fish Sea Turtles Coral Reefs The Ocean Floor Sealab All the activities are ideal for grades K-6, but older children and adults may just learn a thing or two as well. ... Read more

Customer Reviews (1)

5-0 out of 5 stars GREAT book for ocean studies!
I'm a homeschooling mom, and I'm always looking for activities for our various units.I stumbled upon this book while looking for other ocean books at the library.It really is great "for all ages."Whilesome of the quiz material is a little difficult for the younger set, theexperiments, maps and various word finds and crosswords could be done bychildren as young as five.It covers everything from the water cycle toocean ecology to sea animals.The experiments and card and board gameswork very well with visual learners.A VERY comprehensive study of theocean!Two thumbs up! ... Read more


9. The Marine Biology Coloring Book (College Outline)
by Thomas M. Niesen
 Paperback: 250 Pages (1982-04)
list price: US$20.00 -- used & new: US$4.98
(price subject to change: see help)
Asin: 0064603032
Average Customer Review: 4.5 out of 5 stars
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Editorial Review

Product Description

Enter the delicate, complex world of underwater life through extraordinarily detailed, hand-drawn illustrations and newly updated text. The Marine Biology Coloring Book will serve as an excellent resource and guide.

  • The process of coloring will focus your attention and leave a visual imprint on your memory.

  • Details on the natural coloration of the plants and animals illustrated will help you create an accurate picture of the ocean world.

  • The text provides a clear introduction to major marine environments as well as an examination of the lifestyles and interactions of the organisms that inhabit them.
  • This expanded edition offers vital information on ocean currents and global weather, including an explanation of El Nino, the deep-sea realm, and the newest deep-sea diving research vessels.

Enjoy the process of creating your own beautiful, full-color reference while you explore a fascinating hidden world. Both the serious student of marine biology and the weekend beachcomber will gain a better understanding of ocean life by coloring The Marine Biology Coloring Book.

... Read more

Customer Reviews (13)

5-0 out of 5 stars From a college student to people with a budding interest in Marine Biology
Wonderful to leaf through, and covers a wide variety of topics. This book is more than a coloring book in that it gives a succinct, detailed, yet very easy to read information page with coloring instructions to go along with the material. The reading was better put than some of my textbooks for class and touches nearly the same amount of topics, from the biological perspective of Marine Bio. If the information proves too dull for a younger audience the pictures are very nicely rendered and detailed to color on their own. I highly recommend it to anyone who thinks they might be interested in marine life and is not too stuffy to enjoy a good color. ^_^

5-0 out of 5 stars Very Helpful accent to your Marine Biology Class!
I took a Marine Biology class and this coloring book helped me learn the topics better than the actual text book!I am a visual learner and when you talk about layers and which animals are in each layer of sand, I will remember easier using this coloring book than I would reading it in a book.You learn about life cycles and reproduction cycles of animals and again the pictures and descriptions in this coloring book very much helped me learn better than the text book did.Plus, it is always fun to color!

5-0 out of 5 stars wonderfully informative
I have used the Human Anatomy book in this series myself and decided to try the Marine Biology with my 7yo son for his homeschool science. He loves anything to do with the ocean. I love that there is a short one page reading to accompany each drawing. Not too much information, but enough to keep that spark of excitment alive. Then he can color a picture to reinforce what he learned. My only regret is that some of the drawings require more effort to do justice to the details than he is willing to put forth. This would not be a problem with an older child or adult. Great Book!

5-0 out of 5 stars Coloring Textbooks provide an alternative way to learn
The Marine biology Coloring Book is a coloring textbook. It is a complete course on Marine biology that you can color in. Coloring provides a multisensory approach to learning which can enhance memorization. Coloring is fun and allows you to be creative, while helping you learn about a new topic. As a teacher who has used this book in my classroom, I would highly recommend it. Topics include marine ecology, rocky coastlines, coral reefs, biology, coloration, defense mechanisms, reproduction and taxonomy of fish, and various phyla of invertebrates. There are some that believe these books are too hard for young children. This is nonsense. Coloring books provide a pressure free way to learn. Who says a 5 year old cannot learn the names or body parts of a fish. On the other hand, there is a ton of information in here that is appropriate for all ages including college students. One need only use the information that is of interest to them and then enjoy coloring in the pictures! Besides the Marine Biology Coloring Book, I also recommend Anatomy Coloring Book, The (3rd Edition), The Botany Coloring Book and The Complete Hawaiian Reef Fish Coloring Book.

5-0 out of 5 stars Coloring & Learning go hand in hand
As the author of The Complete Hawaiian Reef Fish Coloring Book and a school teacher, I know first hand, that coloring and learning go hand in hand. This book is great for all ages, younger children are challenged, older children and even college students are introduced to all types of marine ecosystems and their inhabitants. This book is complete, well written, educational and fun!I highly recommend this book! ... Read more


10. Characterisation and antimicrobial activity of epibiotic bacteria from Petrosia ficiformis (Porifera, Demospongiae) [An article from: Journal of Experimental Marine Biology and Ecology]
by E. Chelossi, M. Milanese, A. Milano, R. Pronzato
Digital: Pages (2004-09-30)
list price: US$8.95 -- used & new: US$8.95
(price subject to change: see help)
Asin: B000RQZ7A0
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Numerous natural products from marine invertebrates show striking structural similarities to known metabolites of microbial origin, suggesting that microorganisms (bacteria, microalgae) are at least involved in their biosynthesis or are in fact the true sources of these respective metabolites. The viable epibiotic microbial community of the marine sponge Petrosia ficiformis was screened and characterised using classical and molecular techniques. Fifty-seven aerobic heterotrophic bacterial strains were isolated and presumptively identified by their phenotypic characters. Random Amplified Polymorphic DNA (RAPD) analysis of the non-fermentative Gram-negative strains and Corynebacteria was performed. Cluster analysis of RAPD data showed genetic relatedness among sponge isolates. Antimicrobial activity was found in several isolates, two of which were identified as Rhodococcus sp. and Pseudomonas sp. by partial 16S rRNA gene sequencing. The recovery of strains with antimicrobial activity suggests that marine sponges represent an ecological niche which harbours a largely uncharacterised microbial diversity and a yet unexploited potential in the search for new secondary metabolites. ... Read more


11. Temperature dependence of superoxide dismutase activity in plankton [An article from: Journal of Experimental Marine Biology and Ecology]
by A. Perelman, Z. Dubinsky, R. Martinez
Digital: 6 Pages (2006-07-11)
list price: US$10.95 -- used & new: US$10.95
(price subject to change: see help)
Asin: B000RR98B8
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The effect of temperature (from 1 to 37 ^oC) on in vitro effective superoxide dismutase (SOD) activity of several organisms was investigated and compared. Antarctic plankton, cultures of the alga Nannochloropsis sp., and the cyanobacterium Synechococcus strain WH 7803, and pure bovine erythrocyte SOD was studied. It was found that in all cases SOD activity increased with decreasing temperature within the temperature range assayed, in the Polar as well as the temperate plankton cells. This behavior of SOD is counterintuitive in terms of our experience when looking at enzyme activity or any other chemical reaction. We suggest a theoretical explanation for this apparently odd behavior. The advantage of such behavior is that the same amount of antioxidant will act better under low temperatures when reactive oxygen species (ROS) increase. Moreover, this protective process would act in vivo at a faster pace than the ex novo enzyme synthesis. ... Read more


12. Activity patterns in northern rock sole are mediated by temperature and feeding history [An article from: Journal of Experimental Marine Biology and Ecology]
by T.P. Hurst, T.A. Duffy
Digital: Pages
list price: US$8.95 -- used & new: US$8.95
(price subject to change: see help)
Asin: B000RR8AG2
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Studies of activity patterns of fishes rarely consider the impact of environmental conditions or organism state. In this paper we demonstrate the influence of temperature and feeding history on the diel activity patterns of juvenile (age 1+) northern rock sole Lepidopsetta polyxystra (Orr and Matarese). Activity type (benthic vs. water column) and level were determined from hourly video recordings of fish in laboratory tanks with the aid of infrared illumination. Groups of rock sole (n=4 per group) were observed at 2, 5, 9 and 13 ^oC without food and at 9 ^oC with food offered once in the morning, at dusk or at night. In all experiments, rock sole exhibited peak activity levels during the dusk and dawn transition periods and a temporal segregation of activity mode. Daytime and crepuscular activity was predominantly benthic, occurring within a few centimeters of the tank bottom, whereas a significant fraction of nighttime activity (up to 90%) occurred with rock sole swimming in the water column or at the water surface. The primary effect of water temperature on rock sole behavior was a reduction in daytime and crepuscular activity at low temperatures. Conversely, nighttime activity levels were independent of water temperature, resulting in a thermally induced shift in the primary activity period. Morning and dusk feeding produced a short-term (1 h) elevation in activity followed by activity suppression until the subsequent crepuscular phase. Nighttime feeding resulted in a longer period of elevated activity (2 h) and did not suppress further benthic or water column activity. These observations suggest a temporal segregation of activity between daytime foraging and nighttime movement that balances energetic demands with predation risk. ... Read more


13. Rhythmic swimming activity in Anguilla anguilla glass eels: Synchronisation to water current reversal under laboratory conditions [An article from: Journal of Experimental Marine Biology and Ecology]
by V. Bolliet, P. Lambert, J. Rives, A. Bardonnet
Digital: Pages (2007-05-31)
list price: US$10.95 -- used & new: US$10.95
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Asin: B000PDYOH2
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Synchronisation of swimming activity to water current reversal every 6.2 h was tested in the European glass eel (Anguilla anguilla L.). When presented with a change in water current direction, glass eels exhibited rhythmic patterns of activity with a period close to the tidal one. Glass eels began to swim with the current and then alternated between positive and negative rheotaxis after each change in the water current direction. Results are discussed in relation to the flood tidal transport theory. Following synchronisation to current reversal, glass eels subjected to constant conditions displayed a weak rhythmic activity suggesting that locomotor behaviour might, in the wild, synchronise to several environmental cues related to the tide. Results obtained with different densities also suggest that social cues might improve the synchronisation. ... Read more


14. Neuronal cholinergic control is involved in the modification of cardiac activity and circulation induced by waterborne copper in the chiton Acanthopleura ... of Experimental Marine Biology and Ecology]
by G. Bini, G.A. Williams, G. Chelazzi
Digital: Pages (2006-10-24)
list price: US$10.95 -- used & new: US$10.95
(price subject to change: see help)
Asin: B000PAUBVS
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Cardiac activity and arterial throughput were studied in the chiton Acanthopleura japonica following exposure to waterborne copper. In order to understand the mechanism of copper action, exposure to the metal was combined with injection of the sodium channel blocker tetrodotoxin, and two cholinergic antagonists, atropine and benzoquinonium. Copper (0.25, 0.33, 0.5, 1 mg l^-^1; 3 h) induced a concentration dependent reduction in heart rate and, at the highest concentration, a reversible arrest of heartbeat. Tetrodotoxin (1 @mM), atropine (20 @mM) and benzoquinonium (5 @mM) significantly antagonized the reduction in heart rate elicited by copper (0.33 mg l^-^1, 3 h). As copper also induced a reduction of heartbeat amplitude and consequent arterial throughput, these results support the hypothesis that the metal activates an extrinsic cholinergic control of heart activity in chitons, resulting in a decrease in haemolymph circulation and, consequently, of metal uptake through the gills. ... Read more


15. Comparison of diet and feeding activity of two polychaetes, Nephtys caeca (Fabricius) and Nereis virens (Sars), in an estuarine intertidal environment ... of Experimental Marine Biology and Ecology]
by A. Caron, G. Desrosiers, P.J.W. Olive, C. Retiere
Digital: Pages (2004-06-30)
list price: US$8.95 -- used & new: US$8.95
(price subject to change: see help)
Asin: B000RQZ6TM
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
It is crucial to study how food resources are allocated in order to understand how invertebrate species of soft-bottomed benthic communities can live in the same environment, especially when belonging to the same trophic level. On the southern shore of the Lower St. Lawrence Estuary, the polychaetes Nereis virens (Nereidae) and Nephtys caeca (Nephtyidae) represent the main infaunal predators and are known to regulate (by predation) other populations within their community. For these animal populations, there is a high degree of spatial overlap in the horizontal dimension as well as vertically in the sediment column. The purpose of this study was to describe and compare the feeding activity of N. virens and N. caeca in relation to several environmental factors. The feeding activity of N. caeca was further studied under natural and experimental conditions and a feeding experiment was carried out to evaluate how the food resource is subdivided in conditions of high spatial overlap. Finally, the prospecting activity of N. virens was described under natural conditions. N. virens and N. caeca exhibited a high degree of dietary overlap, particularly at the adult stage. This food resource overlap can easily influence the regulation of these species, even though they display different feeding responses to environmental stimuli. Tides and storm events can also influence the feeding behaviour. We conclude that different behavioural feeding responses likely favour the occurrence of these two species in the same trophic environment. ... Read more


16. Environmental influence on activity levels and behavioural allocation in the polychaete Nereis virens (Sars) [An article from: Journal of Experimental Marine Biology and Ecology]
by J. Deschenes, G. Desrosiers, J. Ferron, Cloutier
Digital: Pages (2005-04-23)
list price: US$10.95 -- used & new: US$10.95
(price subject to change: see help)
Asin: B000RR4QM4
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Influence of environmental factors such as temperature, food, and photoperiod on activity levels and behavioural allocation of Nereis virens was examined using laboratory experimental essays. Animals were subjected to 4 temperatures (1, 6, 13, and 18 ^oC), two food concentrations (low and abundant), and two photoperiod regimes (6 and 12 h of daylight) for 10-day periods. A general linear model was used to evaluate how these three factors and their possible interactions affected relative activity levels. Furthermore, a log-ratio redundancy analysis was used to examine the relationship between behavioural allocation and environmental factors. Activity levels increased with temperature and food abundance. Extreme cold induced quiescence, yet the polychaetes retained their ability to react to food stimuli, especially at higher food abundances. Food abundance explained the greatest amount of variation in behavioural allocation. However, its effect varied with temperature. Feeding predominated under low food conditions, whereas storage (accumulation of organic matter in their burrows) predominated under abundant food conditions, especially at higher temperatures. Animals seemed to anticipate food shortage, which is often synchronised by temperature in a natural environment. The potential for carbon sequestration resulting from food storage is therefore present and may be controlled by these same exogenous factors that usually characterise seasonal variations. ... Read more


17. Activity and shelter use of an intertidal snail: effects of sex, reproductive condition and tidal cycle [An article from: Journal of Experimental Marine Biology and Ecology]
by L. Pardo, L.E. Johnson
Digital: Pages (2004-04-15)
list price: US$8.95 -- used & new: US$8.95
(price subject to change: see help)
Asin: B000RQZ6C4
Canada | United Kingdom | Germany | France | Japan
Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Although activity patterns are an important component of the ecology of animals as they search for food, mates and appropriate habitats, substantial variation can be observed even within a single population. The source of this variation is the combination of intrinsic and extrinsic factors acting at an individual level. We documented the activity patterns of the ovoviviparous intertidal gastropod Littorina saxatilis (Olivi) over a series of tidal cycles to assess how differences in movements of individuals with different reproductive attributes (non-gravid females, gravid females and males) might explain intra-population variability in activity. Four behaviors were measured for four consecutive tidal cycles for each of 3 months: the magnitude, frequency, and orientation of movements, and the use of shelters (i.e., crevices). In addition, we correlated movements with variations in several environmental factors (temperature, wind, humidity) during low tide to investigate the possible risk sensitivity of the different reproductive groups. All groups were more active and moved greater distances during high tide. Females, especially gravid females, appeared to be more risk-sensitive as they moved shorter distances and used shelters more often. Gravid females were also the only group with a negative relationship between air temperature and movement during low tide. We interpret these behaviors as a means to increase the probability of survival of the brooded offspring carried by the female. Males were the only group to consistently have directionality in their movements and showed evidence of an ''up-down'' behavior for remaining in a restricted zone. Reproductive attributes appear to be able to explain part of the intra-population variability in foraging activity in natural populations and should be taken into account in the design and interpretation of behavioral and ecological studies. ... Read more


18. Effect of temperature and salinity on acetylcholinesterase activity, a common pollution biomarker, in Mytilus sp. from the south-western Baltic Sea [An ... of Experimental Marine Biology and Ecology]
by S. Pfeifer, D. Schiedek, J.W. Dippner
Digital: Pages (2005-06-15)
list price: US$10.95 -- used & new: US$10.95
(price subject to change: see help)
Asin: B000RR4PY8
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Acetylcholinesterase (AChE) activity is a well established biomarker to monitor environmental pollution caused by neurotoxic compounds, such as organophosphorus and carbamate pesticides. The presence of these compounds results in a measurable inhibition of the enzyme. This has been shown for different marine species including blue mussels. Besides pollution, environmental variables may also have a direct or indirect effect on AChE activity, particularly in estuarine and brackish water environments. To assess the impact of abiotic factors on the AChE activity the seasonal course of gill AChE activity was followed in relation to temperature and salinity in Mytilus sp. collected from the south-western Baltic Sea. In addition, the effect of salinity on AChE activity was investigated in an experimental study. The AChE activity showed significant seasonal differences with maximum activities during the summer period and minimum activities in winter. These changes correlate significantly (p<0.001) and positively with water temperature. The experimental exposure of Mytilus sp. to different salinities (5, 7, 16 or 20 psu) resulted in changes in the gill AChE activity. Empirical orthogonal function (EOF) analysis revealed that AChE activity was significantly and negatively correlated with salinity (p<0.01). These results clearly demonstrate the need to consider the potential influence of temperature and salinity on AChE activity when applying this biomarker to monitor exposure to and effect of neurotoxic substances in estuarine and brackish water blue mussels. ... Read more


19. Phylogenetic differences in cardiac activity, metal accumulation and mortality of limpets exposed to copper: A prosobranch-pulmonate comparison [An article ... of Experimental Marine Biology and Ecology]
by M. De Pirro, D.J. Marshall
Digital: Pages
list price: US$8.95 -- used & new: US$8.95
(price subject to change: see help)
Asin: B000RR8A0I
Canada | United Kingdom | Germany | France | Japan
Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Taxonomic relationships for pollutant tolerance in marine invertebrates are surprisingly poorly known, despite being potentially useful for pollution biomonitoring. A popular view is that cellular and molecular adaptations for natural stress may be important in tolerating pollution. We compared the physiological and mortality responses to copper (Cu^2^+) of limpets from two different lineages: the Prosobranchia (Patellogastropoda: Helcion concolor and Cellana capensis) and the Pulmonata (Siphonaria serrata and Siphonaria capensis). Copper tolerance was apparently more closely related to phylogenetically-based physiology, than to tolerance of desiccation and or heat. The Siphonaria limpets were nearly an order of magnitude more tolerant of copper than the patellogastropod limpets, even though S. serrata has the lowest intertidal distribution. Initial copper exposure (0.25 ppm Cu^2^+ for 2 h) induced heart rate depression in Siphonaria (to around 50% of the baseline rate), while their tissue copper concentrations remained at the relatively high control levels. Copper exposure (0.25 ppm Cu^2^+ for 2 h) had no effect on heart rate of the patellogastropod limpets, but led to a significant increase in tissue copper. These results suggest that enhanced copper tolerance by Siphonaria relates to cardiac depression and a concomitant metabolic depression. Such physiological attributes are implicated in prolonged behavioural isolation, involving pneumostome closure and shell clamping, which is likely to reduce the uptake of copper. Furthermore, better regulation of internal copper levels by Siphonaria, is suggested by their exclusive possession of blood haemocyanin. Dependence on relatively high aerobic metabolism by the patellogastropod limpets, would limit their capacity for isolation and pollutant avoidance. ce. ... Read more


20. Daily and circadian rhythms of locomotor activity in the American lobster, Homarus americanus [An article from: Journal of Experimental Marine Biology and Ecology]
by S.H. Jury, C.C. Chabot, W.H. Watson
Digital: Pages (2005-05-04)
list price: US$10.95 -- used & new: US$10.95
(price subject to change: see help)
Asin: B000RR4QJ2
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Editorial Review

Product Description
This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
It is widely accepted that American lobsters, Homarus americanus (Milne-Edwards), are nocturnally active. However, the degree to which this rhythm is expressed by different individuals and the underlying causes of lobster activity rhythms, are poorly understood. In order to address these issues we recorded daily patterns of lobster locomotion using two novel techniques. In the first, reed switch assemblies were used to monitor the distance traveled by freely moving lobsters (n=43), each fitted with a small magnet, as they walked around a 1 m diameter racetrack. The advantages of this technique included: (1) lobsters were freely moving; (2) the system could be deployed in laboratory tanks or in the field and; (3) actual distances moved were measured, not just relative activity. The second technique involved placing individual lobsters (n=10) into custom-designed running wheels. This allowed for continuous monitoring of locomotor activity for extended durations (>45 days) under normal light/dark (L/D) cycles, as well as in constant darkness (D/D) and constant light (L/L). Under ambient light conditions lobsters in the racetracks moved an average of 60.1+/-6.5 m/day in flow-through seawater tanks. Overall, lobsters were significantly more active at night, moving 4.1+/-0.4 m/h in the dark vs. 1.0+/-0.2 m/h in the light. However, many of the lobsters moved as much during the day as during the night. Lobsters in the running wheels moved an average of 36.6+/-11.7 m/day and 80% expressed clear daily rhythms of activity, with a mean periodicity of 24.0+/-0.1 h under L/D conditions. Under D/D conditions 90% of the animals expressed free-running circadian rhythms with a mean periodicity of 24.2+/-0.3 h, indicating that this species possesses endogenous rhythmicity. While the running wheel results show that the nocturnal pattern of locomotor activity for this species is strongly influenced by an endogenous circadian clock, the results from the racetracks show that there is remarkable variability in the extent to which they express this pattern under natural conditions. ... Read more


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