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4 results for "Marine biology"
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Record #:
28340
Author(s):
Abstract:
Tail spine characteristics of thirty-seven stingray species frequenting the Western Atlantic Ocean and South American freshwater rivers were examined noting spine serrations, presence of a dorsal groove, and other features. Utilizing a combination of tail spine characteristics, one can usually determine whether a species caused death or harm.
Record #:
28789
Abstract:
The reproductive practices of marine and estuarine animals are detailed for young and old readers. Reproduction, fertilization, the gender of aquatic animals, population size, and environmental cues are all defined and discussed with examples provided. Included is a glossary of terms.
Source:
Record #:
35995
Abstract:
Dr. James Mead of the Smithsonian Institute was on hand to help answer this question. The creatures that helped determine the intelligence level of marine life included beaked whales, porpoises, and bottle-nosed dolphins. As for the criteria used to determine intelligence level, if communication was a criterion, then the answer was affirmative.
Source:
Sea Chest (NoCar F 262 D2 S42), Vol. 4 Issue 3, Spring 1978, p8-15
Record #:
28343
Abstract:
Coastal and estuarine systems are highly susceptible to species invasions. This study examined the relationship between recruitment and adult communities in Charleston, South Carolina. The non-indigenous Asian green mussel (Perna viridis) was found indicating the need for extended monitoring efforts.