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Title: Spatial and temporal variation in results of purple urchin (Strongylocentrotus purpuratus) toxicity tests with zinc

Abstract

Purple urchins (Strongylocentrotus purpuratus) were maintained in year-round spawning condition in the laboratory for use in fertilization and larval development experiments designed to assess temporal variability in response to zinc. Results of these tests were compared to those from tests using gametes obtained from a field-collected population. Fertilization and larval development tests were also conducted comparing field-collected purple urchins from three geographically distinct groups on the West Coast of the United States. Fertilization tests conducted to assess temporal variability produced variable median effects concentrations (EC50s) ranging from 4.1 to >100 {micro}g/L zinc. Larval development tests did not demonstrate significant differences in response to zinc between geographically distinct purple urchin populations. Fertilization test variability was examined in terms of sperm concentration and sperm collection method during two seasons. Reduced variability was found with dry sperm collection in tests conducted in March 1995 but increased again in tests conducted in June 1995, regardless of sperm collection method. Increased variability in response to zinc may be caused by seasonal temperature effects.

Authors:
; ;  [1]
  1. Univ. of California, Santa Cruz, CA (United States). Inst. of Marine Sciences
Publication Date:
OSTI Identifier:
675461
Resource Type:
Journal Article
Journal Name:
Environmental Toxicology and Chemistry
Additional Journal Information:
Journal Volume: 17; Journal Issue: 3; Other Information: PBD: Mar 1998
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 56 BIOLOGY AND MEDICINE, APPLIED STUDIES; WATER POLLUTION; BIOLOGICAL INDICATORS; SEA URCHINS; ZINC; TOXICITY

Citation Formats

Phillips, B.M., Anderson, B.S., and Hunt, J.W.. Spatial and temporal variation in results of purple urchin (Strongylocentrotus purpuratus) toxicity tests with zinc. United States: N. p., 1998. Web. doi:10.1897/1551-5028(1998)017<0453:SATVIR>2.3.CO;2.
Phillips, B.M., Anderson, B.S., & Hunt, J.W.. Spatial and temporal variation in results of purple urchin (Strongylocentrotus purpuratus) toxicity tests with zinc. United States. doi:10.1897/1551-5028(1998)017<0453:SATVIR>2.3.CO;2.
Phillips, B.M., Anderson, B.S., and Hunt, J.W.. Sun . "Spatial and temporal variation in results of purple urchin (Strongylocentrotus purpuratus) toxicity tests with zinc". United States. doi:10.1897/1551-5028(1998)017<0453:SATVIR>2.3.CO;2.
@article{osti_675461,
title = {Spatial and temporal variation in results of purple urchin (Strongylocentrotus purpuratus) toxicity tests with zinc},
author = {Phillips, B.M. and Anderson, B.S. and Hunt, J.W.},
abstractNote = {Purple urchins (Strongylocentrotus purpuratus) were maintained in year-round spawning condition in the laboratory for use in fertilization and larval development experiments designed to assess temporal variability in response to zinc. Results of these tests were compared to those from tests using gametes obtained from a field-collected population. Fertilization and larval development tests were also conducted comparing field-collected purple urchins from three geographically distinct groups on the West Coast of the United States. Fertilization tests conducted to assess temporal variability produced variable median effects concentrations (EC50s) ranging from 4.1 to >100 {micro}g/L zinc. Larval development tests did not demonstrate significant differences in response to zinc between geographically distinct purple urchin populations. Fertilization test variability was examined in terms of sperm concentration and sperm collection method during two seasons. Reduced variability was found with dry sperm collection in tests conducted in March 1995 but increased again in tests conducted in June 1995, regardless of sperm collection method. Increased variability in response to zinc may be caused by seasonal temperature effects.},
doi = {10.1897/1551-5028(1998)017<0453:SATVIR>2.3.CO;2},
journal = {Environmental Toxicology and Chemistry},
number = 3,
volume = 17,
place = {United States},
year = {1998},
month = {3}
}