Nocturnal and crepuscular behavior in elasmobranchs: a review of movement, habitat use, foraging, and reproduction in the dark.
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| Title: | Nocturnal and crepuscular behavior in elasmobranchs: a review of movement, habitat use, foraging, and reproduction in the dark. |
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| Authors: | Hammerschlag, N.1,2 nhammerschlag@miami.edu, Skubel, R. A.1,2, Calich, H.1, Nelson, E. R.1, Shiffman, D. S.1,2, Wester, J.1,2, Macdonal, C. C.1,2, Cain, S.1, Jennings, L.1,3, Enchelmaier, A.1, Gallagher, A. J.1,4,5 |
| Source: | Bulletin of Marine Science. Apr2017, Vol. 93 Issue 2, p355-374. 20p. |
| Subjects: | Chondrichthyes, Nocturnal animal activity, Fish behavior, Aquatic habitats, Aquatic ecology |
| Abstract: | It is commonly assumed that elasmobranchs (sharks, skates, and rays) are most active during dark periods (dawn, dusk, night). However, this assertion has not been critically evaluated. It is also unclear whether dark periods are primarily utilized for the performance of important lifehistory events, such as mating. If this were the case, low-light periods would be of significance to elasmobranch conservation as some anthropogenic activities (night fishing, lighting) could disproportionately impact fitness of species that are more active in the dark. Here, we review and summarize previous studies on elasmobranch behavior during nocturnal and crepuscular periods focusing on patterns of movement, habitat use, foraging, and reproduction. A review of 166 studies provided mixed results for widely-assumed increased elasmobranch activity when dark. Frequency of foraging and horizontal movement (distance travelled, activity space) were reported as greater only during crepuscular periods in the majority (>50%) of reviewed studies (28 of 43 and 78 of 125 studies, respectively), a pattern not evident during night. No pervasive patterns emerged for increased habitat use or reproductive behaviors during dark. We did not find any particular habitat type consistently supporting increased activity during dark, nor did we find evidence that higher trophic level elasmobranchs were more active when dark. Thus, generalizations about increased elasmobranch activity during dark periods are currently not supported. While research on the behavior of elasmobranchs during dark periods has been increasing, many knowledge gaps remain and we present a set of research priorities to assist in the development of future investigations. [ABSTRACT FROM AUTHOR] |
| Copyright of Bulletin of Marine Science is the property of Rosenstiel School of Marine & Atmospheric Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 122921109 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Nocturnal and crepuscular behavior in elasmobranchs: a review of movement, habitat use, foraging, and reproduction in the dark. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hammerschlag%2C+N%2E%22">Hammerschlag, N.</searchLink><relatesTo>1,2</relatesTo><i> nhammerschlag@miami.edu</i><br /><searchLink fieldCode="AR" term="%22Skubel%2C+R%2E+A%2E%22">Skubel, R. A.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Calich%2C+H%2E%22">Calich, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nelson%2C+E%2E+R%2E%22">Nelson, E. R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Shiffman%2C+D%2E+S%2E%22">Shiffman, D. S.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wester%2C+J%2E%22">Wester, J.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Macdonal%2C+C%2E+C%2E%22">Macdonal, C. C.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Cain%2C+S%2E%22">Cain, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jennings%2C+L%2E%22">Jennings, L.</searchLink><relatesTo>1,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Enchelmaier%2C+A%2E%22">Enchelmaier, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gallagher%2C+A%2E+J%2E%22">Gallagher, A. J.</searchLink><relatesTo>1,4,5</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Marine+Science%22">Bulletin of Marine Science</searchLink>. Apr2017, Vol. 93 Issue 2, p355-374. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Chondrichthyes%22">Chondrichthyes</searchLink><br /><searchLink fieldCode="DE" term="%22Nocturnal+animal+activity%22">Nocturnal animal activity</searchLink><br /><searchLink fieldCode="DE" term="%22Fish+behavior%22">Fish behavior</searchLink><br /><searchLink fieldCode="DE" term="%22Aquatic+habitats%22">Aquatic habitats</searchLink><br /><searchLink fieldCode="DE" term="%22Aquatic+ecology%22">Aquatic ecology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: It is commonly assumed that elasmobranchs (sharks, skates, and rays) are most active during dark periods (dawn, dusk, night). However, this assertion has not been critically evaluated. It is also unclear whether dark periods are primarily utilized for the performance of important lifehistory events, such as mating. If this were the case, low-light periods would be of significance to elasmobranch conservation as some anthropogenic activities (night fishing, lighting) could disproportionately impact fitness of species that are more active in the dark. Here, we review and summarize previous studies on elasmobranch behavior during nocturnal and crepuscular periods focusing on patterns of movement, habitat use, foraging, and reproduction. A review of 166 studies provided mixed results for widely-assumed increased elasmobranch activity when dark. Frequency of foraging and horizontal movement (distance travelled, activity space) were reported as greater only during crepuscular periods in the majority (>50%) of reviewed studies (28 of 43 and 78 of 125 studies, respectively), a pattern not evident during night. No pervasive patterns emerged for increased habitat use or reproductive behaviors during dark. We did not find any particular habitat type consistently supporting increased activity during dark, nor did we find evidence that higher trophic level elasmobranchs were more active when dark. Thus, generalizations about increased elasmobranch activity during dark periods are currently not supported. While research on the behavior of elasmobranchs during dark periods has been increasing, many knowledge gaps remain and we present a set of research priorities to assist in the development of future investigations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Bulletin of Marine Science is the property of Rosenstiel School of Marine & Atmospheric Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.5343/bms.2016.1046 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 355 Subjects: – SubjectFull: Chondrichthyes Type: general – SubjectFull: Nocturnal animal activity Type: general – SubjectFull: Fish behavior Type: general – SubjectFull: Aquatic habitats Type: general – SubjectFull: Aquatic ecology Type: general Titles: – TitleFull: Nocturnal and crepuscular behavior in elasmobranchs: a review of movement, habitat use, foraging, and reproduction in the dark. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hammerschlag, N. – PersonEntity: Name: NameFull: Skubel, R. A. – PersonEntity: Name: NameFull: Calich, H. – PersonEntity: Name: NameFull: Nelson, E. R. – PersonEntity: Name: NameFull: Shiffman, D. S. – PersonEntity: Name: NameFull: Wester, J. – PersonEntity: Name: NameFull: Macdonal, C. C. – PersonEntity: Name: NameFull: Cain, S. – PersonEntity: Name: NameFull: Jennings, L. – PersonEntity: Name: NameFull: Enchelmaier, A. – PersonEntity: Name: NameFull: Gallagher, A. J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 00074977 Numbering: – Type: volume Value: 93 – Type: issue Value: 2 Titles: – TitleFull: Bulletin of Marine Science Type: main |
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