Clam-Digging Behavior in the Starfish

Clam-Digging Behavior in the Starfish CLAM-DIGGING BEHAVIOR IN THE STARFISH, PISASTER BREVISPINUS (STIMPSON 1857) by LYNWOOD S. SMITH (Olympic Junior College, Bremerton, Washington) (Rec. 20-XII-1960) In the course of underwater observation in Puget Sound made near Bremerton, Washington, Pisaster brevispinus was noted in shallow, but definite depressions. Inspection of the starfish showed them often to be feeding on bivalves or resting on empty bivalve shells. The hypothesis that these starfish dig bivalves from the gravelly substrate seemed worth pur- suing and the following observations are recorded in support of that view. The holes in which the Pisaster brevispinus were found were shaped like shallow bowls, up to 70 cm. in diameter and 10 cm. deep at the center. While there was some tendency for the excavated material to be deposited uniformly around the rim of the hole, some holes had several distinct piles of gravel under the tips of several rays. The tips of the rays of the starfish typically reached to the rim of the hole except that the smaller starfish (less than about 25 cm. in diameter) were not observed in holes. The clamshells com- monly found in the holes were Saxidomus and Protothaca. The depths at which P. brevispinus were http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Clam-Digging Behavior in the Starfish

Behaviour, Volume 18 (1-2): 148 – Jan 1, 1961

Loading next page...
 
/lp/brill/clam-digging-behavior-in-the-starfish-6rxyaZu9Mo
Publisher
Brill
Copyright
© 1961 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
D.O.I.
10.1163/156853961X00303
Publisher site
See Article on Publisher Site

Abstract

CLAM-DIGGING BEHAVIOR IN THE STARFISH, PISASTER BREVISPINUS (STIMPSON 1857) by LYNWOOD S. SMITH (Olympic Junior College, Bremerton, Washington) (Rec. 20-XII-1960) In the course of underwater observation in Puget Sound made near Bremerton, Washington, Pisaster brevispinus was noted in shallow, but definite depressions. Inspection of the starfish showed them often to be feeding on bivalves or resting on empty bivalve shells. The hypothesis that these starfish dig bivalves from the gravelly substrate seemed worth pur- suing and the following observations are recorded in support of that view. The holes in which the Pisaster brevispinus were found were shaped like shallow bowls, up to 70 cm. in diameter and 10 cm. deep at the center. While there was some tendency for the excavated material to be deposited uniformly around the rim of the hole, some holes had several distinct piles of gravel under the tips of several rays. The tips of the rays of the starfish typically reached to the rim of the hole except that the smaller starfish (less than about 25 cm. in diameter) were not observed in holes. The clamshells com- monly found in the holes were Saxidomus and Protothaca. The depths at which P. brevispinus were

Journal

BehaviourBrill

Published: Jan 1, 1961

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off