| Number |
Name
of Kit |
Description |
Live
Collection |
| EM001 |
Tubularia crocea |
This species offers
an excellent opportunity for the study of medusa development.
The reproductive individuals originate from structures (blastostyles)
between the aboral and oral tentacles. Each bud has the structure
of a medusa which remains attached to the parent polyp. Fertilization
of the egg and development through planula and actinula larva
takes place on the sessile medusa. The actinula leaves the gonophore
and fixes by its aboral end. A ripe gonophore usually contains
larvae of two ages; a planula and an actinula. Maximum development
seems to be in August and Septermber. However, polyps with reproductive
structures are usually available from June to November. |
$150.00 |
| EM002 |
Obelia sp. |
In this species, medusa
develop from modified polyps (blastostyles) and, when mature,
are released into the open water where sexual reproduction takes
place. Individual polyps with developing blastostyles are collected
in early fall. |
$150.00 |
| EM003 |
Aureilia aurita |
The entire life cycle
of this species can be followed, at intervals, from August to
March. Mature adults with active planulae are available in August
and early September. These larvae settle and develop into scyphistoma
which are usually available throughout the year. In March, the
scyphistoma begin to undergo srobilation, eventually forming
strobili, from which the free-swimming ephyrae are released
in late March or early April. Development of the ephyrae into
small medusae can be observed subsequent to their release. |
$275.00 |
| EM004 |
Mysis stenolepis |
"Berried"
Mysis are collected from late March through May. Egg development
can be followed by removing individual eggs at regular intervals.
Larval development is followed subsequent to their release.
|
$150.00 |
| EM005 |
Pagurus sp., Cancer
borealis, Hyas areneus |
"Berried"
crabs are collected from February to April. Zoea release occurs
in March or early April. Copulating pairs of Hyas are usually
available in February. |
$150.00 |
| EM006 |
Lunatia heros |
Moon snail "sand
collars" containing several hundred viable eggs, are available
from April to June. Development can be followed by removing
eggs from the collar at regular intervals. |
$150.00 |
| EM007 |
Thais lapillus |
Egg capsules containing
developing embryos are available from April to June and, in
small numbers, throughout the summer. |
$150.00 |
| EM008 |
Buccinum undatum |
Masses of egg capsules
begin to appear in late March and are usually available well
into the summer. Development can be followed by removing capsules,
from a capsule mass, at regular intervals. |
$150.00 |
| EM009 |
Lamellidoris diademata |
Egg masses of this
species appear on ledges at the low water mark in early spring.
Several thousand eggs per shipment. |
$225.00 |
| EM010 |
Asterias vulgaris |
Adults with viable
eggs and sperm are available in late winter into early summer.
Spontaneous release of eggs has been observed locally in June. |
$150.00 |
| EM011 |
Leptasterias sp. |
This species broods
its eggs in the oral "pouch." This offers an excellent
opportunity for the observation of the development of starfish.
Usually, brooding adults are obtained in the spring. |
$150.00 |
| EM012 |
Strongylocentrotus
droehbachiensis |
Adults with viable
eggs and sperm are available from January to April. |
$150.00 |
| EM013 |
Fundulus heteroclistus |
Locally, mummichogs
exhibit territorial behavior in August. Graviid females and
males exhibiting breeding colors are usually available as early
as late June. |
$150.00 |
| EM014 |
Gasterosteus aculeatus |
Three-spine sticklebacks
exhibit territorial behavior in August. Graviid females and
males exhibiting breeding colors are usually available in July. |
$150.00 |
Live Tidepool Study Kits