{"id":{"repo_id":"u-pacific","oai_identifier":"oai:scholarlycommons.pacific.edu:uop_etds-2910"},"canonical_url":"https://search.dev.ndltd.org/etd/u-pacific/oai:scholarlycommons.pacific.edu:uop_etds-2910","repository":{"repo_id":"u-pacific","name":"University of the Pacific","base_url":"https://scholarlycommons.pacific.edu/do/oai/"},"display":{"title":"Distribution and abundance of soft-sediment intertidal Polychaetes","abstract":"Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species in intertidal communities it is of interest to obtain information that would facilitate future experimental work of such interactions. This study documents seasonal changes in the abundance of the polychaete component of the intertidal community. Attention is directed at possible factors that might affect seasonal changes in distribution. A major finding is that certain herbivorous polychaetes exhibit seasonal fluctuations in abundance that appear to be correlated with changes in algal cover. These findings might suggest more detailed future experimentation. Some aspects of recruitment of major species are considered and the presence of a parasite in one of the species is noted. Aspects of benthic community ecology are discussed.","abstract_html":"Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species in intertidal communities it is of interest to obtain information that would facilitate future experimental work of such interactions. This study documents seasonal changes in the abundance of the polychaete component of the intertidal community. Attention is directed at possible factors that might affect seasonal changes in distribution. A major finding is that certain herbivorous polychaetes exhibit seasonal fluctuations in abundance that appear to be correlated with changes in algal cover. These findings might suggest more detailed future experimentation. Some aspects of recruitment of major species are considered and the presence of a parasite in one of the species is noted. Aspects of benthic community ecology are discussed.","abstract_has_math":false,"creators":["Howege, Hassan Muftah"],"institution":null,"degree_name":"Master of Science (M.S.)","degree_level":"Thesis","degree_discipline":"Graduate Studies","degree_department":null,"school":null,"contributors":["Steven Obrebski"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1976,"date_issued":"1976-01-01T08:00:00Z","date_published":"1976-01-01T08:00:00Z","updated_at":"2026-07-24T05:37:42Z","subjects":["Polychaeta California Tomales Bay","Intertidal zonation California Tomales Bay","Intertidal ecology California Tomales Bay","Physical Sciences and Mathematics"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/NKC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/1911","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Steven Obrebski"]},{"key":"dc:creator","label":"Author","values":["Howege, Hassan Muftah"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-06-29T09:05:50Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Graduate Studies"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (M.S.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Polychaeta California Tomales Bay","Intertidal zonation California Tomales Bay","Intertidal ecology California Tomales Bay","Physical Sciences and Mathematics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/NKC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarlycommons.pacific.edu/uop_etds/1911"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species in intertidal communities it is of interest to obtain information that would facilitate future experimental work of such interactions. This study documents seasonal changes in the abundance of the polychaete component of the intertidal community. Attention is directed at possible factors that might affect seasonal changes in distribution. A major finding is that certain herbivorous polychaetes exhibit seasonal fluctuations in abundance that appear to be correlated with changes in algal cover. These findings might suggest more detailed future experimentation. Some aspects of recruitment of major species are considered and the presence of a parasite in one of the species is noted. Aspects of benthic community ecology are discussed."]},{"key":"dc:source","label":"Dc Source","values":["101"]},{"key":"dc:title","label":"Title","values":["Distribution and abundance of soft-sediment intertidal Polychaetes"]}]}],"canonical_facts":{"dc:contributor":["Steven Obrebski"],"dc:creator":["Howege, Hassan Muftah"],"dc:date.available":["2018-06-29T09:05:50Z"],"dc:description.abstract":["Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species in intertidal communities it is of interest to obtain information that would facilitate future experimental work of such interactions. This study documents seasonal changes in the abundance of the polychaete component of the intertidal community. Attention is directed at possible factors that might affect seasonal changes in distribution. A major finding is that certain herbivorous polychaetes exhibit seasonal fluctuations in abundance that appear to be correlated with changes in algal cover. These findings might suggest more detailed future experimentation. Some aspects of recruitment of major species are considered and the presence of a parasite in one of the species is noted. Aspects of benthic community ecology are discussed."],"dc:identifier":["https://scholarlycommons.pacific.edu/uop_etds/1911"],"dc:rights":["http://rightsstatements.org/vocab/NKC/1.0/"],"dc:source":["101"],"dc:subject":["Polychaeta California Tomales Bay","Intertidal zonation California Tomales Bay","Intertidal ecology California Tomales Bay","Physical Sciences and Mathematics"],"dc:title":["Distribution and abundance of soft-sediment intertidal Polychaetes"],"thesis:degree_discipline":["Graduate Studies"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (M.S.)"]},"updated_at":"2026-07-24T05:37:42Z"}