Effects of various environmental factors on egg development of several species of Acartia in Southern California

1976 ◽  
Vol 38 (3) ◽  
pp. 253-262 ◽  
Author(s):  
S. Uye ◽  
A. Fleminger
Keyword(s):  
Environmental Factors ◽  
Southern California ◽  
Egg Development

Classification system for embryonic development of Simulium arcticum Malloch (IIS-10.11) (Diptera: Simuliidae)

1988 ◽  
Vol 66 (1) ◽  
pp. 274-276
Author(s):  
J. L. Shipp
Keyword(s):  
Environmental Factors ◽  
Embryonic Development ◽  
Classification System ◽  
Egg Development ◽  
Simple Classification

A classification system for embryonic development of Simulium arcticum Malloch (IIS-10.11) is described. Embryonic development was divided into five stages based upon the degree of embryogenesis. This simple classification system would be useful for monitoring development of S. arcticum (IIS-10.11) in studies to determine the effects of environmental factors or chemical insecticides on egg development and hatch.

Effects of Environmental Factors on Egg Development and Hatching of Pacific Halibut Hippoglossus stenolepis

1994 ◽  
Vol 25 (2) ◽  
pp. 317-321 ◽  
Author(s):  
Han Wu Liu ◽  
Robert R. Stickney ◽  
Walton W. Dickhoff ◽  
Donald A. McCaughran
Keyword(s):  
Environmental Factors ◽  
Egg Development ◽  
Pacific Halibut ◽  
Hippoglossus Stenolepis

scholarly journals A Reinvestigation of Southern California Rocky Intertidal Beaches Three and One-Half Years after the 1969 Santa Barbara Oil Spill: A Preliminary Report

1973 ◽  
Vol 1973 (1) ◽  
pp. 697-702 ◽  
Author(s):  
Robert Cimberg ◽  
Steven Mann ◽  
Dale Straughan
Keyword(s):  
Cluster Analysis ◽  
Environmental Factors ◽  
Oil Spill ◽  
Preliminary Report ◽  
Southern California ◽  
Rocky Intertidal ◽  
Santa Barbara ◽  
Factors Affecting ◽  
Substrate Stability ◽  
Sand Movement

ABSTRACT Ten rocky intertidal beaches in southern California, which were surveyed for a 12 month period following the 1969 Santa Barbara oil spill, were reinvestigated in June and July of 1972. Data from this 1972 survey as well as data collected during the same months on the same beaches in 1969 and 1970 were analyzed by forming beach groupings using cluster analysis. This analysis indicates that sand movement and substrate stability are the two most important factors affecting the presence of marine organisms on these beaches during this period. Overall, the effect of the 1969 Santa Barbara oil spill on the presence and abundance of rocky intertidal organisms was less important than other environmental factors. Most mortalities reported were localized in tide pools and high intertidal areas.

Sign in / Sign up

Export Citation Format

Share Document