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Climate Change Impacts on Pre- and Post-Settlement Processes : = Insights on the Declining Atlantic Surfclam, Spisula solidissima solidissima, Fishery.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Climate Change Impacts on Pre- and Post-Settlement Processes :/
Reminder of title:	Insights on the Declining Atlantic Surfclam, Spisula solidissima solidissima, Fishery.
Author:	Czaja, Raymond.
Description:	1 online resource (407 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
Subject:	Biological oceanography. -
Online resource:	click for full text (PQDT)
ISBN:	9798380159760

Climate Change Impacts on Pre- and Post-Settlement Processes : = Insights on the Declining Atlantic Surfclam, Spisula solidissima solidissima, Fishery.
Czaja, Raymond.

Climate Change Impacts on Pre- and Post-Settlement Processes :Insights on the Declining Atlantic Surfclam, Spisula solidissima solidissima, Fishery. - 1 online resource (407 pages)

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--State University of New York at Stony Brook, 2023.

Includes bibliographical references

Climate change impacts on bivalves are already occurring. Assessing such impacts and predicting future impacts may simultaneously aid bivalve fisheries management while increasing our basic understanding of climate change ecology. In the northwest Atlantic, the Atlantic surfclam, Spisula solidissima solidissima, is one of many shellfish fisheries that has already demonstrated sensitivities to climate change. This dissertation aimed to fill in broad bivalve fisheries ecology knowledge gaps that overlap with outstanding questions regarding surfclam responses to climate change, emphasizing responses in NYS (New York State) waters. Multiple life stages were considered, with pre-settlement (larval) and post-settlement (juvenile and adult) processes such as larval development, recruitment and adult bioenergetics being emphasized. This research used experimental and modeling approaches to build on work regarding ocean warming and acidification impacts, while also considering additional climate change phenomena such as changes in food availability and wind patterns. Spatiotemporal models assessing recruitment and growth patterns highlighted the importance of oceanographic gradients in NYS waters where western, warmer waters are experiencing higher recruitment declines, primarily due to ocean warming, than cooler eastern waters. Relatedly, warmer, higher food availability inshore waters yielded enhanced growth relative to cooler, lower food availability deeper waters, with younger individuals increasing growth with increasing temperatures, but older individuals decreasing growth with increasing temperatures. Lab experiments showed that moderate ocean warming may enhance larval development, but severe ocean warming, and ocean warming combined with ocean acidification or low food availability stress may decrease larval development. Larval lab experiments also revealed that ocean warming may decrease larval swimming speed and that high habitat quality (based on temperature and food availability) in inshore, northern waters may allow for enhanced development compared to southern, offshore waters. Lab experiments regarding adult feeding behavior suggest that adult surfclams prefer diatoms, with food availability and temperature changes affecting adult feeding behavior. Surfclam-specific research was contextualized with a meta-analysis showing that local adaptation (due to oceanographic phenomena such as upwelling) and experimental design decisions (such as treatment exposure) may affect outcomes of studies assessing bivalve metabolic responses to ocean acidification. This dissertation highlights the importance of assessing bivalve responses to climate change at increased spatial, temporal and ontogenetic resolutions, and considering spatial and temporal oceanographic variability as a driver of bivalve responses to climate change. Additionally, while multiple climate change phenomena were considered, this research highlights the importance of food availability variability and bivalve feeding behavior (feeding rate and particle preferences). Although the NYS surfclam fishery has been in decline in recent decades, the fishery may benefit from increased growth and development in high food availability regions and stable recruitment in cooler, eastern waters.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380159760Subjects--Topical Terms:

1178855
Biological oceanography.
Subjects--Index Terms:

BivalveIndex Terms--Genre/Form:

554714
Electronic books.

Climate Change Impacts on Pre- and Post-Settlement Processes : = Insights on the Declining Atlantic Surfclam, Spisula solidissima solidissima, Fishery.
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