Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus)
Banded killifish (Fundulus diaphanus) are a small, freshwater fish that have a wide distribution in eastern North America and are considered a species-at-risk on the island of Newfoundland. We posit that because Newfoundland’s summer climate is much cooler than other locations at similar latitudes,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2019-01-01
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| Series: | Journal of Freshwater Ecology |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/02705060.2019.1687109 |
| _version_ | 1818031787332337664 |
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| author | H. D. Penney M. A. Litt C. F. Purchase |
| author_facet | H. D. Penney M. A. Litt C. F. Purchase |
| author_sort | H. D. Penney |
| collection | DOAJ |
| description | Banded killifish (Fundulus diaphanus) are a small, freshwater fish that have a wide distribution in eastern North America and are considered a species-at-risk on the island of Newfoundland. We posit that because Newfoundland’s summer climate is much cooler than other locations at similar latitudes, there may be different constraints on banded killifish reproduction. We measured embryonic development under four temperatures (10, 16, 22, and 28 °C) and two conductivities (0.6 and 1.2 mS/cm). Warmer temperatures led to more developed embryos prior to death in embryos that ultimately did not hatch, higher hatch success, faster hatch time, and fewer thermal units to hatch. Conductivity and temperature interacted to affect hatch size. Therefore, banded killifish are likely challenged by the low temperature and conductivity conditions in Newfoundland which may result in reproductive constraints, and perhaps complete cohort failures in relatively cool summers. |
| first_indexed | 2024-12-10T05:57:01Z |
| format | Article |
| id | doaj.art-83663b7cde4b4cfd9c8970ab0e61c635 |
| institution | Directory Open Access Journal |
| issn | 0270-5060 2156-6941 |
| language | English |
| last_indexed | 2024-12-10T05:57:01Z |
| publishDate | 2019-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Freshwater Ecology |
| spelling | doaj.art-83663b7cde4b4cfd9c8970ab0e61c6352022-12-22T01:59:55ZengTaylor & Francis GroupJournal of Freshwater Ecology0270-50602156-69412019-01-0134177178210.1080/02705060.2019.16871091687109Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus)H. D. Penney0M. A. Litt1C. F. Purchase2Memorial University of NewfoundlandMemorial University of NewfoundlandMemorial University of NewfoundlandBanded killifish (Fundulus diaphanus) are a small, freshwater fish that have a wide distribution in eastern North America and are considered a species-at-risk on the island of Newfoundland. We posit that because Newfoundland’s summer climate is much cooler than other locations at similar latitudes, there may be different constraints on banded killifish reproduction. We measured embryonic development under four temperatures (10, 16, 22, and 28 °C) and two conductivities (0.6 and 1.2 mS/cm). Warmer temperatures led to more developed embryos prior to death in embryos that ultimately did not hatch, higher hatch success, faster hatch time, and fewer thermal units to hatch. Conductivity and temperature interacted to affect hatch size. Therefore, banded killifish are likely challenged by the low temperature and conductivity conditions in Newfoundland which may result in reproductive constraints, and perhaps complete cohort failures in relatively cool summers.http://dx.doi.org/10.1080/02705060.2019.1687109compensatory developmentthermal adaptationdegree daysrange edge |
| spellingShingle | H. D. Penney M. A. Litt C. F. Purchase Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) Journal of Freshwater Ecology compensatory development thermal adaptation degree days range edge |
| title | Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) |
| title_full | Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) |
| title_fullStr | Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) |
| title_full_unstemmed | Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) |
| title_short | Threshold temperature constraints on reproduction of the banded killifish (Fundulus diaphanus) |
| title_sort | threshold temperature constraints on reproduction of the banded killifish fundulus diaphanus |
| topic | compensatory development thermal adaptation degree days range edge |
| url | http://dx.doi.org/10.1080/02705060.2019.1687109 |
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