Close cookie details

This site uses cookies. Learn more about cookies.

OverDrive would like to use cookies to store information on your computer to improve your user experience at our Website. One of the cookies we use is critical for certain aspects of the site to operate and has already been set. You may delete and block all cookies from this site, but this could affect certain features or services of the site. To find out more about the cookies we use and how to delete them, click here to see our Privacy Policy.

If you do not wish to continue, please click here to exit this site.

Hide notification

  Main Nav
Sea Otter Heroes
Cover of Sea Otter Heroes
Sea Otter Heroes
The Predators That Saved an Ecosystem

A Robert F. Sibert Informational Honor Book
A Green Earth Book Award Winner
This up-close look at a fascinating scientific discovery highlights the critical role predators such as sea otters play in keeping ecosystems healthy.

In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water. This healthy seagrass baffled marine biologist Brent Hughes. The scientist expected this estuary to be overrun with algae, causing the seagrass to die. Why was the seagrass thriving?
As Brent investigated, signs pointed to an unexpected player helping to keep the seagrass healthy: sea otters! What do these top predators have to do with an aquatic grass at the opposite end of the food chain? Brent's amazing discovery gave scientists insight into the delicate balance of ecosystems. Follow science in action as Brent conducts the research that led to this major discovery.

A Robert F. Sibert Informational Honor Book
A Green Earth Book Award Winner
This up-close look at a fascinating scientific discovery highlights the critical role predators such as sea otters play in keeping ecosystems healthy.

In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water. This healthy seagrass baffled marine biologist Brent Hughes. The scientist expected this estuary to be overrun with algae, causing the seagrass to die. Why was the seagrass thriving?
As Brent investigated, signs pointed to an unexpected player helping to keep the seagrass healthy: sea otters! What do these top predators have to do with an aquatic grass at the opposite end of the food chain? Brent's amazing discovery gave scientists insight into the delicate balance of ecosystems. Follow science in action as Brent conducts the research that led to this major discovery.

Available formats-
  • OverDrive Listen
  • OverDrive MP3 Audiobook
Languages:-
Copies-
  • Available:
    0
  • Library copies:
    0
Levels-
  • ATOS:
    6.9
  • Lexile:
    1060
  • Interest Level:
    MG
  • Text Difficulty:
    5

Recommended for you

About the Author-
  • Patricia Newman's books inspire young readers to seek connections to the real world. Her titles encourage readers to use their imaginations to solve real world problems and act on behalf of their communities. These books include Sibert Honor title Sea Otter Heroes: The Predators That Saved an Ecosystem; Junior Library Guild Selection Eavesdropping on Elephants; Bank Street College Best Book Zoo Scientists to the Rescue; Booklist Editor's Choice Ebola: Fears and Facts; and Green Earth Book Award winner Plastic, Ahoy! Investigating the Great Pacific Garbage Patch. Patricia frequently speaks at schools and conferences to share how children of any age can affect change. Visit her at www.patriciamnewman.com.
Reviews-
  • School Library Journal

    January 1, 2017

    Gr 4-7-With their big eyes; soft, furry faces; and playful behavior, sea otters are a favorite marine mammal among kids and teens. Protective measures have stabilized sea otter numbers after the mammals once came close to extinction. Only recently, through the work of marine biologist Brent Hughes, has their role in maintaining ecosystems come to light. The Elkhorn Slough, an inlet of Monterey Bay in Northern California, is a nutrient-polluted estuary fed by the fertilizers and pesticides used in nearby farming. This work chronicles the mystery of why this ecosystem is far healthier than scientists would expect. Using the tools of scientific research, Hughes has discovered that sea otters, the top predators in the food chain, help keep the sea grass algae-free through their feeding habits, which in turn allows the growth of a fish population and preserves a natural barrier to storms. The step-by-step process of ascertaining that the sea otter was responsible for the thriving ecosystem provides a strong example of the value and excitement of primary research. Clear, full-color photographs show how Hughes confirmed his theory. However, this title resembles a picture book, which may deter older readers. VERDICT A very informative selection for environmental studies.-Eva Elisabeth VonAncken, formerly at Trinity-Pawling School, Pawling, NY

    Copyright 2017 School Library Journal, LLC Used with permission.

  • Kirkus

    Starred review from February 15, 2017
    A young scientist's doctoral research reveals a surprising relationship between sea grasses and sea otters in a California bay.Valuable sea grasses in Elkhorn Slough, in Northern California, were thriving in spite of heavy nutrient pollution from nearby Salinas Valley farms. When Brent Hughes began his investigation of this mystery, he looked at things directly affecting sea-grass growth, such as weather patterns. It wasn't until he compared sea grass cover with otter population that he found a match. In discussions with other researchers, the young white biologist learned that otters like to eat big, meaty crabs, which feed on sea hares, a type of sea slug that in turn feeds on algae growth that smothers the grasses. Following usual procedures, he then designed experiments to prove his hypothesis that the thriving otter population made the sea grass flourish. This intriguing description of the problem he saw and his research process is a model of the scientific method. Interspersed with chapters describing the mystery, the development of the hypothesis, the proof, and the larger idea of "trophic cascades" (interactions among predators and prey that begin at the top of the food chain) are sections about otters and about sea-grass science in general. A map, ample photographs, and an attractive design add appeal, and there are sensible suggestions for environmental protection. A thoughtfully organized and attractively presented example of science in the field. (source notes, glossary, bibliography, suggested resources, index). (Nonfiction. 11-16)

    COPYRIGHT(2017) Kirkus Reviews, ALL RIGHTS RESERVED.

  • Booklist

    February 1, 2017
    Grades 5-8 Though the cover of promises photographs of adorable, fluffy-faced otters, this volume packs a substantial amount of scientific detail as well. The main narrative follows marine biologist Brent Hughes and his study of Elkhorn Slough, which grew healthy seagrass while other inlets in similar conditions suffered. Eventually, careful research revealed that it was the presence of sea otters, the local apex predator, that allowed the slough to flourish. In four chapters, Newman details Hughes' research processes and examines the workings of ecosystems in general and how its inhabitants affect it at every level. Illustrations include not only those irresistible otter photos but also scientific diagrams and photographs of Hughes' experiments. A final chapter on conservation explains the often-damaging effect humans can have on ecosystems, while back matter includes relevant experiments, extensive secondary resources, and ways in which young people can help the environment on a daily basis. Not just an exploration of one particular discovery in marine biology, this is a comprehensive explanation of the scientific process as well.(Reprinted with permission of Booklist, copyright 2017, American Library Association.)

  • Kirkus Reviews

    "A young scientist's doctoral research reveals a surprising relationship between sea grasses and sea otters in a California bay. Valuable sea grasses in Elkhorn Slough, in Northern California, were thriving in spite of heavy nutrient pollution from nearby Salinas Valley farms. When Brent Hughes began his investigation of this mystery, he looked at things directly affecting sea-grass growth, such as weather patterns. It wasn't until he compared sea grass cover with otter population that he found a match. In discussions with other researchers, the young white biologist learned that otters like to eat big, meaty crabs, which feed on sea hares, a type of sea slug that in turn feeds on algae growth that smothers the grasses. Following usual procedures, he then designed experiments to prove his hypothesis that the thriving otter population made the sea grass flourish. This intriguing description of the problem he saw and his research process is a model of the scientific method. Interspersed with chapters describing the mystery, the development of the hypothesis, the proof, and the larger idea of 'trophic cascades' (interactions among predators and prey that begin at the top of the food chain) are sections about otters and about sea-grass science in general. A map, ample photographs, and an attractive design add appeal, and there are sensible suggestions for environmental protection. A thoughtfully organized and attractively presented example of science in the field."—starred, Kirkus Reviews

Title Information+
  • Publisher
    Lerner Publishing Group
  • OverDrive Listen
    Release date:
  • OverDrive MP3 Audiobook
    Release date:
Digital Rights Information+

Status bar:

You've reached your checkout limit.

Visit your Checkouts page to manage your titles.

Close

You already have this title checked out.

Want to go to your Checkouts?

Close

Recommendation Limit Reached.

You've reached the maximum number of titles you can recommend at this time. You can recommend up to 99 titles every 1 day(s).

Close

Sign in to recommend this title.

Recommend your library consider adding this title to the Digital Collection.

Close

Enhanced Details

Close
Close

Limited availability

Availability can change throughout the month based on the library's budget.

is available for days.

Once playback starts, you have hours to view the title.

Close

Permissions

Close

The OverDrive Read format of this eBook has professional narration that plays while you read in your browser. Learn more here.

Close

Holds

Total holds:


Close

Restricted

Some format options have been disabled. You may see additional download options outside of this network.

Close

MP3 audiobooks are only supported on macOS 10.6 (Snow Leopard) through 10.14 (Mojave). Learn more about MP3 audiobook support on Macs.

Close

Please update to the latest version of the OverDrive app to stream videos.

Close

You've reached your library's checkout limit for digital titles.

To make room for more checkouts, you may be able to return titles from your Checkouts page.

Close

Excessive Checkout Limit Reached.

There have been too many titles checked out and returned by your account within a short period of time.

Try again in several days. If you are still not able to check out titles after 7 days, please contact Support.

Close

You have already checked out this title. To access it, return to your Checkouts page.

Close

This title is not available for your card type. If you think this is an error contact support.

Close

An unexpected error has occurred.

If this problem persists, please contact support.

Close

Close

NOTE: Barnes and Noble® may change this list of devices at any time.

Close
Buy it now
and help our library WIN!
Sea Otter Heroes
Sea Otter Heroes
The Predators That Saved an Ecosystem
Patricia Newman
Choose a retail partner below to buy this title for yourself.
A portion of this purchase goes to support your library.
Close
Close

There are no copies of this issue left to borrow. Please try to borrow this title again when a new issue is released.

Close
Barnes & Noble Sign In |   Sign In

You will be prompted to sign into your library account on the next page.

If this is your first time selecting “Send to NOOK,” you will then be taken to a Barnes & Noble page to sign into (or create) your NOOK account. You should only have to sign into your NOOK account once to link it to your library account. After this one-time step, periodicals will be automatically sent to your NOOK account when you select "Send to NOOK."

The first time you select “Send to NOOK,” you will be taken to a Barnes & Noble page to sign into (or create) your NOOK account. You should only have to sign into your NOOK account once to link it to your library account. After this one-time step, periodicals will be automatically sent to your NOOK account when you select "Send to NOOK."

You can read periodicals on any NOOK tablet or in the free NOOK reading app for iOS, Android or Windows 8.

Accept to ContinueCancel