Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf
Undocumented historical losses of sea turtle nesting beaches worldwide could overestimate the successes of conservation measures and misrepresent the actual status of the sea turtle population. In addition, the suitability of many sea turtle nesting sites continues to decline even without in-depth s...
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/1a6ee777835442878b007f687b7294d9 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:1a6ee777835442878b007f687b7294d9 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:1a6ee777835442878b007f687b7294d92021-12-01T04:36:45ZMultidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf1470-160X10.1016/j.ecolind.2020.107146https://doaj.org/article/1a6ee777835442878b007f687b7294d92021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310852https://doaj.org/toc/1470-160XUndocumented historical losses of sea turtle nesting beaches worldwide could overestimate the successes of conservation measures and misrepresent the actual status of the sea turtle population. In addition, the suitability of many sea turtle nesting sites continues to decline even without in-depth scientific studies of the extent of losses and impacts to the population. In this study, multidecadal changes in the outlines and area of Jana and Karan islands, major sea turtle nesting sites in the Arabian Gulf, were compared using available Kodak aerographic images, USGS EROS Declassified satellite imagery, and ESRI satellite images. A decrease of 5.1% and 1.7% of the area of Jana and Karan islands, respectively, were observed between 1965 and 2017. This translated to 14,146 m2 of beach loss at Jana Is. and 16,376 m2 of beach loss at Karan Is. There was an increase of island extent for Karan Is. from 1965 to 1968 by 9098 m2 but comparing 2017 with 1968, Karan Is. lost as much as 25,474 m2 or 2.6% of the island extent in 1968. The decrease in island aerial extent was attributed to loss of beach sand. The southern tips of the island lost the most significant amount of sand. There was also thinning of beach sand along the middle and northern sections that exposed the rock outcrops underneath the beach. The process of beach changes of both islands was tracked by the satellite imagery from Landsat 1,3,5,7 and Sentinel-2 during 1972 to 2020. Other factors including the distribution of beach slope, sea level changes, as well as wind & current from both northward and eastward components were analyzed to show its impact on the beach changes. The loss of beach sand could potentially impact the quality and availability of nesting beach for sea turtles utilizing the islands as main nesting grounds. Drivers of beach loss at the offshore islands are discussed in the context of sea level rise, dust storms, extreme wave heights and island desertification.Rommel H. ManejaJeffrey D. MillerWenzhao LiRejoice ThomasHesham El-AskarySachi PereraAce Vincent B. FlandezAbdullajid U. BasaliJoselito Francis A. AlcariaJinoy GopalanSurya TiwariMubarak Al-JedaniPerdana K. PrihartatoRonald A. LoughlandAli QasemMohamed A. QurbanWail FalathDaniele StruppaElsevierarticleBeach lossSea turtle nesting beachesArabian GulfSatellite imageryCoastal squeezeLandsat 1,3,5,7EcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107146- (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Beach loss Sea turtle nesting beaches Arabian Gulf Satellite imagery Coastal squeeze Landsat 1,3,5,7 Ecology QH540-549.5 |
| spellingShingle |
Beach loss Sea turtle nesting beaches Arabian Gulf Satellite imagery Coastal squeeze Landsat 1,3,5,7 Ecology QH540-549.5 Rommel H. Maneja Jeffrey D. Miller Wenzhao Li Rejoice Thomas Hesham El-Askary Sachi Perera Ace Vincent B. Flandez Abdullajid U. Basali Joselito Francis A. Alcaria Jinoy Gopalan Surya Tiwari Mubarak Al-Jedani Perdana K. Prihartato Ronald A. Loughland Ali Qasem Mohamed A. Qurban Wail Falath Daniele Struppa Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| description |
Undocumented historical losses of sea turtle nesting beaches worldwide could overestimate the successes of conservation measures and misrepresent the actual status of the sea turtle population. In addition, the suitability of many sea turtle nesting sites continues to decline even without in-depth scientific studies of the extent of losses and impacts to the population. In this study, multidecadal changes in the outlines and area of Jana and Karan islands, major sea turtle nesting sites in the Arabian Gulf, were compared using available Kodak aerographic images, USGS EROS Declassified satellite imagery, and ESRI satellite images. A decrease of 5.1% and 1.7% of the area of Jana and Karan islands, respectively, were observed between 1965 and 2017. This translated to 14,146 m2 of beach loss at Jana Is. and 16,376 m2 of beach loss at Karan Is. There was an increase of island extent for Karan Is. from 1965 to 1968 by 9098 m2 but comparing 2017 with 1968, Karan Is. lost as much as 25,474 m2 or 2.6% of the island extent in 1968. The decrease in island aerial extent was attributed to loss of beach sand. The southern tips of the island lost the most significant amount of sand. There was also thinning of beach sand along the middle and northern sections that exposed the rock outcrops underneath the beach. The process of beach changes of both islands was tracked by the satellite imagery from Landsat 1,3,5,7 and Sentinel-2 during 1972 to 2020. Other factors including the distribution of beach slope, sea level changes, as well as wind & current from both northward and eastward components were analyzed to show its impact on the beach changes. The loss of beach sand could potentially impact the quality and availability of nesting beach for sea turtles utilizing the islands as main nesting grounds. Drivers of beach loss at the offshore islands are discussed in the context of sea level rise, dust storms, extreme wave heights and island desertification. |
| format |
article |
| author |
Rommel H. Maneja Jeffrey D. Miller Wenzhao Li Rejoice Thomas Hesham El-Askary Sachi Perera Ace Vincent B. Flandez Abdullajid U. Basali Joselito Francis A. Alcaria Jinoy Gopalan Surya Tiwari Mubarak Al-Jedani Perdana K. Prihartato Ronald A. Loughland Ali Qasem Mohamed A. Qurban Wail Falath Daniele Struppa |
| author_facet |
Rommel H. Maneja Jeffrey D. Miller Wenzhao Li Rejoice Thomas Hesham El-Askary Sachi Perera Ace Vincent B. Flandez Abdullajid U. Basali Joselito Francis A. Alcaria Jinoy Gopalan Surya Tiwari Mubarak Al-Jedani Perdana K. Prihartato Ronald A. Loughland Ali Qasem Mohamed A. Qurban Wail Falath Daniele Struppa |
| author_sort |
Rommel H. Maneja |
| title |
Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| title_short |
Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| title_full |
Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| title_fullStr |
Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| title_full_unstemmed |
Multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern Arabian Gulf |
| title_sort |
multidecadal analysis of beach loss at the major offshore sea turtle nesting islands in the northern arabian gulf |
| publisher |
Elsevier |
| publishDate |
2021 |
| url |
https://doaj.org/article/1a6ee777835442878b007f687b7294d9 |
| work_keys_str_mv |
AT rommelhmaneja multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT jeffreydmiller multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT wenzhaoli multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT rejoicethomas multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT heshamelaskary multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT sachiperera multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT acevincentbflandez multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT abdullajidubasali multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT joselitofrancisaalcaria multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT jinoygopalan multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT suryatiwari multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT mubarakaljedani multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT perdanakprihartato multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT ronaldaloughland multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT aliqasem multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT mohamedaqurban multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT wailfalath multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf AT danielestruppa multidecadalanalysisofbeachlossatthemajoroffshoreseaturtlenestingislandsinthenorthernarabiangulf |
| _version_ |
1718405828918116352 |