Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors
The majority of cephalopods are thought to have limitations arising from physiology and locomotion that exclude them from shallow, highly variable, euryhaline environments. The brief squid Lolliguncula brevis may be a notable exception because it tolerates low salinities, withstands a wide range of...
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1181 2024-06-23T07:52:23+00:00 Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors Bartol, IK Mann, Roger L. Vecchione, M 2002-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/182 doi: 10.3354/meps226235 https://scholarworks.wm.edu/context/vimsarticles/article/1181/viewcontent/m226p235.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/182 doi: 10.3354/meps226235 https://scholarworks.wm.edu/context/vimsarticles/article/1181/viewcontent/m226p235.pdf VIMS Articles squid estuaries salinity water temperature dissolved oxygen Lolliguncula brevis Fisheries Science Peer-Reviewed Articles Marine Biology text 2002 ftwilliammarycol https://doi.org/10.3354/meps226235 2024-06-05T03:30:42Z The majority of cephalopods are thought to have limitations arising from physiology and locomotion that exclude them from shallow, highly variable, euryhaline environments. The brief squid Lolliguncula brevis may be a notable exception because it tolerates low salinities, withstands a wide range of environmental conditions, and swims readily in shallow water. Little is known about the distribution of L. brevis in Chesapeake Bay, a diverse and highly variable estuary. Therefore, a survey of L. brevis was conducted in the Virginia portion of Chesapeake Bay from 1993 to 1997 using a 9.1 m otter trawl, and the effects of selected factors on squid presence were assessed using logistic regression analysis. During spring through fall, L. brevis was collected over a wide range of bottom-water salinities (17.9 to 35.0%) bottom-water temperatures (8.1 to 29.6degreesC), bottom-water dissolved oxygen levels (1.9 to 14.6 mg O-2 l(-1)), and depths (1.8 to 29.9 m), but it was not present in trawls conducted during winter in. L. brevis, especially juveniles < 60 mm dorsal mantle length (DML), were abundant, frequently ranking in the upper 12% of overall annual nektonic trawl catches, and during the fall of some years, ranking second to anchovies. The probability of catching a squid increased in Chesapeake Bay at higher salinities and water temperatures, and was much greater in normoxic than in hypoxic waters; these variables had a profound influence on both annual and seasonal variability in distribution. Salinity had the largest influence on squid distribution, with squid being completely absent from the bay when salinity was < 17.9% and most abundant in the fall when salinity was highest (despite declines in water temperature). Squid were most prevalent at depths between 10 and 15 m, The results of this study suggest that L, brevis is an important component of the Chesapeake Bay ecosystem when salinities and water temperatures are within tolerance limits and that unlike other squids, L. brevis may be well-equipped for ... Text DML W&M ScholarWorks Marine Ecology Progress Series 226 235 247 |
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Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
squid estuaries salinity water temperature dissolved oxygen Lolliguncula brevis Fisheries Science Peer-Reviewed Articles Marine Biology |
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squid estuaries salinity water temperature dissolved oxygen Lolliguncula brevis Fisheries Science Peer-Reviewed Articles Marine Biology Bartol, IK Mann, Roger L. Vecchione, M Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
topic_facet |
squid estuaries salinity water temperature dissolved oxygen Lolliguncula brevis Fisheries Science Peer-Reviewed Articles Marine Biology |
description |
The majority of cephalopods are thought to have limitations arising from physiology and locomotion that exclude them from shallow, highly variable, euryhaline environments. The brief squid Lolliguncula brevis may be a notable exception because it tolerates low salinities, withstands a wide range of environmental conditions, and swims readily in shallow water. Little is known about the distribution of L. brevis in Chesapeake Bay, a diverse and highly variable estuary. Therefore, a survey of L. brevis was conducted in the Virginia portion of Chesapeake Bay from 1993 to 1997 using a 9.1 m otter trawl, and the effects of selected factors on squid presence were assessed using logistic regression analysis. During spring through fall, L. brevis was collected over a wide range of bottom-water salinities (17.9 to 35.0%) bottom-water temperatures (8.1 to 29.6degreesC), bottom-water dissolved oxygen levels (1.9 to 14.6 mg O-2 l(-1)), and depths (1.8 to 29.9 m), but it was not present in trawls conducted during winter in. L. brevis, especially juveniles < 60 mm dorsal mantle length (DML), were abundant, frequently ranking in the upper 12% of overall annual nektonic trawl catches, and during the fall of some years, ranking second to anchovies. The probability of catching a squid increased in Chesapeake Bay at higher salinities and water temperatures, and was much greater in normoxic than in hypoxic waters; these variables had a profound influence on both annual and seasonal variability in distribution. Salinity had the largest influence on squid distribution, with squid being completely absent from the bay when salinity was < 17.9% and most abundant in the fall when salinity was highest (despite declines in water temperature). Squid were most prevalent at depths between 10 and 15 m, The results of this study suggest that L, brevis is an important component of the Chesapeake Bay ecosystem when salinities and water temperatures are within tolerance limits and that unlike other squids, L. brevis may be well-equipped for ... |
format |
Text |
author |
Bartol, IK Mann, Roger L. Vecchione, M |
author_facet |
Bartol, IK Mann, Roger L. Vecchione, M |
author_sort |
Bartol, IK |
title |
Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
title_short |
Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
title_full |
Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
title_fullStr |
Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
title_full_unstemmed |
Distribution of the euryhaline squid Lolliguncula brevis in Chesapeake Bay: effects of selected abiotic factors |
title_sort |
distribution of the euryhaline squid lolliguncula brevis in chesapeake bay: effects of selected abiotic factors |
publisher |
W&M ScholarWorks |
publishDate |
2002 |
url |
https://scholarworks.wm.edu/vimsarticles/182 https://scholarworks.wm.edu/context/vimsarticles/article/1181/viewcontent/m226p235.pdf |
genre |
DML |
genre_facet |
DML |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/182 doi: 10.3354/meps226235 https://scholarworks.wm.edu/context/vimsarticles/article/1181/viewcontent/m226p235.pdf |
op_doi |
https://doi.org/10.3354/meps226235 |
container_title |
Marine Ecology Progress Series |
container_volume |
226 |
container_start_page |
235 |
op_container_end_page |
247 |
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1802643680119488512 |